From patchwork Tue Aug 18 04:18:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276242 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1EC2BC433E1 for ; Tue, 18 Aug 2020 04:21:18 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BA5E820706 for ; Tue, 18 Aug 2020 04:21:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="FhUptpOV" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BA5E820706 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56486 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7t7c-0000mx-Nx for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:21:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49842) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t63-00078m-OS; Tue, 18 Aug 2020 00:19:39 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:33905 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t5z-0006JY-Up; Tue, 18 Aug 2020 00:19:39 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNY5S8Xz9sTW; Tue, 18 Aug 2020 14:19:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724365; bh=qVscrQXxliA1n1slJsjqZIJ0VNQ6LAsj9dXEyP+kp3w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FhUptpOVKEXCgd5tt1nzkLhftoTgt3zsXEMvCKVvmSrshQXLVipB52pG73JnZgnLg EZlbwp+CkFBPkM4hH42uSX8AvvlyqUx2sG5JcUS7I2FqZUoxKE5duTk2GboFUA12ys f2F/RO1TsKjYgbuO/v0iHaeEupulnINrh+grUQ/c= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 02/40] target/ppc: Introduce Power ISA 3.1 flag Date: Tue, 18 Aug 2020 14:18:44 +1000 Message-Id: <20200818041922.251708-3-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lijun Pan , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Lijun Pan This flag will be used for Power10 instructions. Signed-off-by: Lijun Pan Message-Id: <20200701234344.91843-2-ljp@linux.ibm.com> Signed-off-by: David Gibson --- target/ppc/cpu.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index e7d382ac10..7bfee8211f 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -2191,6 +2191,8 @@ enum { PPC2_PM_ISA206 = 0x0000000000040000ULL, /* POWER ISA 3.0 */ PPC2_ISA300 = 0x0000000000080000ULL, + /* POWER ISA 3.1 */ + PPC2_ISA310 = 0x0000000000100000ULL, #define PPC_TCG_INSNS2 (PPC2_BOOKE206 | PPC2_VSX | PPC2_PRCNTL | PPC2_DBRX | \ PPC2_ISA205 | PPC2_VSX207 | PPC2_PERM_ISA206 | \ From patchwork Tue Aug 18 04:18:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276238 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3483FC433DF for ; Tue, 18 Aug 2020 04:24:56 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E36F320706 for ; Tue, 18 Aug 2020 04:24:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="GeacrFhJ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E36F320706 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45274 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tB8-0007lv-A5 for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:24:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49844) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t63-00078q-Rd; Tue, 18 Aug 2020 00:19:39 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:38331) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t61-0006Jc-FA; Tue, 18 Aug 2020 00:19:39 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNY6cwLz9sTX; Tue, 18 Aug 2020 14:19:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724365; bh=OAAGdUDZCZvz9NTw3kp186i3ZI0PgeQ2wFCzGQWfCqU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GeacrFhJor8nkd1EM9huhrZVq91VQtrt69fHQmKe4nAzYgQ+v1LtVJWgNEoSVjRaf E40SEUgj5bdUn4r56Q0TSvCYaObcWhh58QXZoM1mVJ/XrteWTyzMr4mkSmPuZtIqRQ gFQiAiFzHaWSIPBWL7FQzHHxAEfGFmViEMIC9kTY= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 03/40] target/ppc: Enable Power ISA 3.1 Date: Tue, 18 Aug 2020 14:18:45 +1000 Message-Id: <20200818041922.251708-4-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lijun Pan , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Lijun Pan This patch enables the Power ISA 3.1 in QEMU. Signed-off-by: Lijun Pan Message-Id: <20200701234344.91843-3-ljp@linux.ibm.com> Signed-off-by: David Gibson --- target/ppc/cpu.h | 2 +- target/ppc/translate_init.inc.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h index 7bfee8211f..3c4e1b3475 100644 --- a/target/ppc/cpu.h +++ b/target/ppc/cpu.h @@ -2201,7 +2201,7 @@ enum { PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | \ PPC2_ALTIVEC_207 | PPC2_ISA207S | PPC2_DFP | \ PPC2_FP_CVT_S64 | PPC2_TM | PPC2_PM_ISA206 | \ - PPC2_ISA300) + PPC2_ISA300 | PPC2_ISA310) }; /*****************************************************************************/ diff --git a/target/ppc/translate_init.inc.c b/target/ppc/translate_init.inc.c index 7e66822b5d..5134123dd6 100644 --- a/target/ppc/translate_init.inc.c +++ b/target/ppc/translate_init.inc.c @@ -9201,7 +9201,7 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data) PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 | PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 | - PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL; + PPC2_TM | PPC2_ISA300 | PPC2_PRCNTL | PPC2_ISA310; pcc->msr_mask = (1ull << MSR_SF) | (1ull << MSR_HV) | (1ull << MSR_TM) | From patchwork Tue Aug 18 04:18:46 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276240 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 875F5C433DF for ; Tue, 18 Aug 2020 04:23:05 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 50AD5207BB for ; Tue, 18 Aug 2020 04:23:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="Px5AKkQX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 50AD5207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:36738 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7t9M-0004JR-IN for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:23:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49840) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t63-00078k-M8; Tue, 18 Aug 2020 00:19:39 -0400 Received: from ozlabs.org ([203.11.71.1]:42489) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t5z-0006JZ-Vn; Tue, 18 Aug 2020 00:19:39 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNZ03HTz9sTn; Tue, 18 Aug 2020 14:19:25 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724366; bh=l4MkVwUco+rCkcYPoEa1iA0fgIjbUKLLoqRdGoYQlHU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Px5AKkQXxvxcquQxwRQPEDoSvxXaG59XzVZoFEgKMkWuqWEf1PdfOlaI9E/VAtPHQ FWvO6To4iGuHQqCAzjd4jOFdPZkw/yGqfs/DSeoyezF0J++DerqOO3qQ+NMpcUBYmm Bnxc8PIpaGj7O8CC/DWcQxIg4MX75vZyuqsC4GY8= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 04/40] target/ppc: add byte-reverse br[dwh] instructions Date: Tue, 18 Aug 2020 14:18:46 +1000 Message-Id: <20200818041922.251708-5-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lijun Pan , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Lijun Pan POWER ISA 3.1 introduces following byte-reverse instructions: brd: Byte-Reverse Doubleword X-form brw: Byte-Reverse Word X-form brh: Byte-Reverse Halfword X-form Signed-off-by: Lijun Pan Message-Id: <20200701234344.91843-4-ljp@linux.ibm.com> Signed-off-by: David Gibson --- target/ppc/translate.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 4ce3d664b5..590c3e3bc7 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -6971,7 +6971,47 @@ static void gen_dform3D(DisasContext *ctx) return gen_invalid(ctx); } +#if defined(TARGET_PPC64) +/* brd */ +static void gen_brd(DisasContext *ctx) +{ + tcg_gen_bswap64_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]); +} + +/* brw */ +static void gen_brw(DisasContext *ctx) +{ + tcg_gen_bswap64_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rS(ctx->opcode)]); + tcg_gen_rotli_i64(cpu_gpr[rA(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 32); + +} + +/* brh */ +static void gen_brh(DisasContext *ctx) +{ + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 t2 = tcg_temp_new_i64(); + + tcg_gen_movi_i64(t0, 0x00ff00ff00ff00ffull); + tcg_gen_shri_i64(t1, cpu_gpr[rS(ctx->opcode)], 8); + tcg_gen_and_i64(t2, t1, t0); + tcg_gen_and_i64(t1, cpu_gpr[rS(ctx->opcode)], t0); + tcg_gen_shli_i64(t1, t1, 8); + tcg_gen_or_i64(cpu_gpr[rA(ctx->opcode)], t1, t2); + + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); + tcg_temp_free_i64(t2); +} +#endif + static opcode_t opcodes[] = { +#if defined(TARGET_PPC64) +GEN_HANDLER_E(brd, 0x1F, 0x1B, 0x05, 0x0000F801, PPC_NONE, PPC2_ISA310), +GEN_HANDLER_E(brw, 0x1F, 0x1B, 0x04, 0x0000F801, PPC_NONE, PPC2_ISA310), +GEN_HANDLER_E(brh, 0x1F, 0x1B, 0x06, 0x0000F801, PPC_NONE, PPC2_ISA310), +#endif GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, PPC_NONE), GEN_HANDLER(cmp, 0x1F, 0x00, 0x00, 0x00400000, PPC_INTEGER), GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER), From patchwork Tue Aug 18 04:18:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276234 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 078CFC433DF for ; Tue, 18 Aug 2020 04:28:04 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CA87E207BB for ; Tue, 18 Aug 2020 04:28:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="dirAgSMe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA87E207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34082 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tEB-0006Ju-4g for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:28:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49952) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t68-0007Mw-HV; Tue, 18 Aug 2020 00:19:44 -0400 Received: from ozlabs.org ([203.11.71.1]:55169) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t65-0006L7-Di; Tue, 18 Aug 2020 00:19:44 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNZ2Yp6z9sTv; Tue, 18 Aug 2020 14:19:26 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724366; bh=xULFcd8XyrPU5zk1hOCR/43qJSisf+K/JFQrUQ84++E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dirAgSMewWjsvIS6sJw1NAOT8N1OrAPcNHAIJQz0SHdDICqrxCKpd7eKoYntadS+4 ppAmmmxWmEht/+P/5HREOtaRAPvVAWx7DnZ+1KfDSwiPT7zvkk3PJas6F53NsVPYq3 Xq+jyX4Eppk6niU0Ydh8l/Op6W1vlKFfDc0Hnc2E= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 07/40] ppc/spapr: Fix 32 bit logical memory block size assumptions Date: Tue, 18 Aug 2020 14:18:49 +1000 Message-Id: <20200818041922.251708-8-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anton Blanchard , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Anton Blanchard When testing large LMB sizes (eg 4GB), I found a couple of places that assume they are 32bit in size. Signed-off-by: Anton Blanchard Message-Id: <20200715004228.1262681-1-anton@ozlabs.org> Signed-off-by: David Gibson --- hw/ppc/spapr.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 0ae293ec94..a5bb0736e2 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -558,7 +558,8 @@ static int spapr_dt_dynamic_reconfiguration_memory(SpaprMachineState *spapr, int nb_numa_nodes = machine->numa_state->num_nodes; int ret, i, offset; uint64_t lmb_size = SPAPR_MEMORY_BLOCK_SIZE; - uint32_t prop_lmb_size[] = {0, cpu_to_be32(lmb_size)}; + uint32_t prop_lmb_size[] = {cpu_to_be32(lmb_size >> 32), + cpu_to_be32(lmb_size & 0xffffffff)}; uint32_t *int_buf, *cur_index, buf_len; int nr_nodes = nb_numa_nodes ? nb_numa_nodes : 1; MemoryDeviceInfoList *dimms = NULL; @@ -905,7 +906,8 @@ static void spapr_dt_rtas(SpaprMachineState *spapr, void *fdt) uint32_t lrdr_capacity[] = { cpu_to_be32(max_device_addr >> 32), cpu_to_be32(max_device_addr & 0xffffffff), - 0, cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE), + cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE >> 32), + cpu_to_be32(SPAPR_MEMORY_BLOCK_SIZE & 0xffffffff), cpu_to_be32(ms->smp.max_cpus / ms->smp.threads), }; uint32_t maxdomain = cpu_to_be32(spapr->gpu_numa_id > 1 ? 1 : 0); From patchwork Tue Aug 18 04:18:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276236 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5E9EC433DF for ; Tue, 18 Aug 2020 04:26:32 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5BD7A207BB for ; Tue, 18 Aug 2020 04:26:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="EYC5wxOC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BD7A207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53836 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tCh-0002rn-Hf for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:26:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49904) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t67-0007If-7v; Tue, 18 Aug 2020 00:19:43 -0400 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:53501 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t65-0006L4-3J; Tue, 18 Aug 2020 00:19:42 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNZ35WZz9sTy; Tue, 18 Aug 2020 14:19:26 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724366; bh=GzchIm7DStOF8X8JiH3RRIrOXxvgBdXuhASFMZERPbs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EYC5wxOCvd5zyWU6ByKFmesYLWF/+KBipCnRrwJ8aQxkN3tQ0hWvjAIZ8RLcyXZvn 7pUazdKxRzVrWKRzf4vlNbierKP8AdzmcTvyTL1nl1X0Ny2eVBUPAJ6D7lRoGsvPg4 TJieQT2KkHt6AMP9SNgVlF77LVC7T8dbRtQWIbJE= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 08/40] spapr: Use error_append_hint() in spapr_caps.c Date: Tue, 18 Aug 2020 14:18:50 +1000 Message-Id: <20200818041922.251708-9-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Vladimir Sementsov-Ogievskiy , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz We have a dedicated error API for hints. Use it instead of embedding the hint in the error message, as recommanded in the "qapi/error.h" header file. While here, have cap_fwnmi_apply(), which already uses error_append_hint(), to call ERRP_GUARD() as well. Signed-off-by: Greg Kurz Reviewed-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Laurent Vivier Message-Id: <159594297421.8262.14314530897345809924.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/ppc/spapr_caps.c | 89 +++++++++++++++++++++++++-------------------- 1 file changed, 50 insertions(+), 39 deletions(-) diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index 3225fc5a2e..275f5bd034 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -180,24 +180,24 @@ static void spapr_cap_set_pagesize(Object *obj, Visitor *v, const char *name, static void cap_htm_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); if (!val) { /* TODO: We don't support disabling htm yet */ return; } if (tcg_enabled()) { - error_setg(errp, - "No Transactional Memory support in TCG," - " try appending -machine cap-htm=off"); + error_setg(errp, "No Transactional Memory support in TCG"); + error_append_hint(errp, "Try appending -machine cap-htm=off\n"); } else if (kvm_enabled() && !kvmppc_has_cap_htm()) { error_setg(errp, -"KVM implementation does not support Transactional Memory," - " try appending -machine cap-htm=off" - ); + "KVM implementation does not support Transactional Memory"); + error_append_hint(errp, "Try appending -machine cap-htm=off\n"); } } static void cap_vsx_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); PowerPCCPU *cpu = POWERPC_CPU(first_cpu); CPUPPCState *env = &cpu->env; @@ -209,13 +209,14 @@ static void cap_vsx_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) * rid of anything that doesn't do VMX */ g_assert(env->insns_flags & PPC_ALTIVEC); if (!(env->insns_flags2 & PPC2_VSX)) { - error_setg(errp, "VSX support not available," - " try appending -machine cap-vsx=off"); + error_setg(errp, "VSX support not available"); + error_append_hint(errp, "Try appending -machine cap-vsx=off\n"); } } static void cap_dfp_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); PowerPCCPU *cpu = POWERPC_CPU(first_cpu); CPUPPCState *env = &cpu->env; @@ -224,8 +225,8 @@ static void cap_dfp_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) return; } if (!(env->insns_flags2 & PPC2_DFP)) { - error_setg(errp, "DFP support not available," - " try appending -machine cap-dfp=off"); + error_setg(errp, "DFP support not available"); + error_append_hint(errp, "Try appending -machine cap-dfp=off\n"); } } @@ -239,6 +240,7 @@ SpaprCapPossible cap_cfpc_possible = { static void cap_safe_cache_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); uint8_t kvm_val = kvmppc_get_cap_safe_cache(); if (tcg_enabled() && val) { @@ -247,9 +249,9 @@ static void cap_safe_cache_apply(SpaprMachineState *spapr, uint8_t val, cap_cfpc_possible.vals[val]); } else if (kvm_enabled() && (val > kvm_val)) { error_setg(errp, - "Requested safe cache capability level not supported by kvm," - " try appending -machine cap-cfpc=%s", - cap_cfpc_possible.vals[kvm_val]); + "Requested safe cache capability level not supported by KVM"); + error_append_hint(errp, "Try appending -machine cap-cfpc=%s\n", + cap_cfpc_possible.vals[kvm_val]); } } @@ -263,6 +265,7 @@ SpaprCapPossible cap_sbbc_possible = { static void cap_safe_bounds_check_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); uint8_t kvm_val = kvmppc_get_cap_safe_bounds_check(); if (tcg_enabled() && val) { @@ -271,9 +274,9 @@ static void cap_safe_bounds_check_apply(SpaprMachineState *spapr, uint8_t val, cap_sbbc_possible.vals[val]); } else if (kvm_enabled() && (val > kvm_val)) { error_setg(errp, -"Requested safe bounds check capability level not supported by kvm," - " try appending -machine cap-sbbc=%s", - cap_sbbc_possible.vals[kvm_val]); +"Requested safe bounds check capability level not supported by KVM"); + error_append_hint(errp, "Try appending -machine cap-sbbc=%s\n", + cap_sbbc_possible.vals[kvm_val]); } } @@ -290,6 +293,7 @@ SpaprCapPossible cap_ibs_possible = { static void cap_safe_indirect_branch_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); uint8_t kvm_val = kvmppc_get_cap_safe_indirect_branch(); if (tcg_enabled() && val) { @@ -298,9 +302,9 @@ static void cap_safe_indirect_branch_apply(SpaprMachineState *spapr, cap_ibs_possible.vals[val]); } else if (kvm_enabled() && (val > kvm_val)) { error_setg(errp, -"Requested safe indirect branch capability level not supported by kvm," - " try appending -machine cap-ibs=%s", - cap_ibs_possible.vals[kvm_val]); +"Requested safe indirect branch capability level not supported by KVM"); + error_append_hint(errp, "Try appending -machine cap-ibs=%s\n", + cap_ibs_possible.vals[kvm_val]); } } @@ -377,23 +381,25 @@ static void cap_hpt_maxpagesize_cpu_apply(SpaprMachineState *spapr, static void cap_nested_kvm_hv_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); if (!val) { /* capability disabled by default */ return; } if (tcg_enabled()) { - error_setg(errp, - "No Nested KVM-HV support in tcg," - " try appending -machine cap-nested-hv=off"); + error_setg(errp, "No Nested KVM-HV support in TCG"); + error_append_hint(errp, "Try appending -machine cap-nested-hv=off\n"); } else if (kvm_enabled()) { if (!kvmppc_has_cap_nested_kvm_hv()) { error_setg(errp, -"KVM implementation does not support Nested KVM-HV," - " try appending -machine cap-nested-hv=off"); + "KVM implementation does not support Nested KVM-HV"); + error_append_hint(errp, + "Try appending -machine cap-nested-hv=off\n"); } else if (kvmppc_set_cap_nested_kvm_hv(val) < 0) { - error_setg(errp, -"Error enabling cap-nested-hv with KVM, try cap-nested-hv=off"); + error_setg(errp, "Error enabling cap-nested-hv with KVM"); + error_append_hint(errp, + "Try appending -machine cap-nested-hv=off\n"); } } } @@ -401,6 +407,7 @@ static void cap_nested_kvm_hv_apply(SpaprMachineState *spapr, static void cap_large_decr_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); PowerPCCPU *cpu = POWERPC_CPU(first_cpu); PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); @@ -411,22 +418,23 @@ static void cap_large_decr_apply(SpaprMachineState *spapr, if (tcg_enabled()) { if (!ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00, 0, spapr->max_compat_pvr)) { - error_setg(errp, - "Large decrementer only supported on POWER9, try -cpu POWER9"); + error_setg(errp, "Large decrementer only supported on POWER9"); + error_append_hint(errp, "Try -cpu POWER9\n"); return; } } else if (kvm_enabled()) { int kvm_nr_bits = kvmppc_get_cap_large_decr(); if (!kvm_nr_bits) { - error_setg(errp, - "No large decrementer support," - " try appending -machine cap-large-decr=off"); + error_setg(errp, "No large decrementer support"); + error_append_hint(errp, + "Try appending -machine cap-large-decr=off\n"); } else if (pcc->lrg_decr_bits != kvm_nr_bits) { error_setg(errp, -"KVM large decrementer size (%d) differs to model (%d)," - " try appending -machine cap-large-decr=off", - kvm_nr_bits, pcc->lrg_decr_bits); + "KVM large decrementer size (%d) differs to model (%d)", + kvm_nr_bits, pcc->lrg_decr_bits); + error_append_hint(errp, + "Try appending -machine cap-large-decr=off\n"); } } } @@ -435,14 +443,15 @@ static void cap_large_decr_cpu_apply(SpaprMachineState *spapr, PowerPCCPU *cpu, uint8_t val, Error **errp) { + ERRP_GUARD(); CPUPPCState *env = &cpu->env; target_ulong lpcr = env->spr[SPR_LPCR]; if (kvm_enabled()) { if (kvmppc_enable_cap_large_decr(cpu, val)) { - error_setg(errp, - "No large decrementer support," - " try appending -machine cap-large-decr=off"); + error_setg(errp, "No large decrementer support"); + error_append_hint(errp, + "Try appending -machine cap-large-decr=off\n"); } } @@ -457,6 +466,7 @@ static void cap_large_decr_cpu_apply(SpaprMachineState *spapr, static void cap_ccf_assist_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); uint8_t kvm_val = kvmppc_get_cap_count_cache_flush_assist(); if (tcg_enabled() && val) { @@ -479,14 +489,15 @@ static void cap_ccf_assist_apply(SpaprMachineState *spapr, uint8_t val, return; } error_setg(errp, -"Requested count cache flush assist capability level not supported by kvm," - " try appending -machine cap-ccf-assist=off"); + "Requested count cache flush assist capability level not supported by KVM"); + error_append_hint(errp, "Try appending -machine cap-ccf-assist=off\n"); } } static void cap_fwnmi_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { + ERRP_GUARD(); if (!val) { return; /* Disabled by default */ } From patchwork Tue Aug 18 04:18:51 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276239 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC049C433E4 for ; Tue, 18 Aug 2020 04:24:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7DE6920706 for ; Tue, 18 Aug 2020 04:24:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="mEtxObkO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7DE6920706 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40458 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tAI-0005oo-KB for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:24:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49948) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t68-0007MV-CI; Tue, 18 Aug 2020 00:19:44 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:38053) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t66-0006LN-2y; Tue, 18 Aug 2020 00:19:44 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNZ3nT3z9sV1; Tue, 18 Aug 2020 14:19:26 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724366; bh=DDx05xw1OIDE5M5zfqz3Kclc5VMes58zkL4yq+6/qGI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mEtxObkOXS7US8DR1ge+lWMSFOKqonHduSLejpPLOA4DlK1iIhhZP6NwUwbW+LPUS DUp6a5yUkcAahQLcknv6MlToN/z00tkwQZGiom9KT8akkVl/PlmJLYbQcSFp7XZYbw 7o6vsdVb0PynDlrOMX8ewlYQNcyWVQefPLKox2iw= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 09/40] spapr: Forbid nested KVM-HV in pre-power9 compat mode Date: Tue, 18 Aug 2020 14:18:51 +1000 Message-Id: <20200818041922.251708-10-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Nested KVM HV only works if the kernel is using the radix MMU mode, ie. the CPU is POWER9 and it is not running in some pre-power9 compat mode. Otherwise, the KVM HV module fails to load in the guest with -ENODEV. It might be painful for a user to discover this late that nested cannot work with their setup. Erroring out at machine init instead seems to be the best we can do. Signed-off-by: Greg Kurz Reviewed-by: Laurent Vivier Message-Id: <159491948127.188975.9621435875869177751.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/ppc/spapr_caps.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index 275f5bd034..10a80a8159 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -382,6 +382,8 @@ static void cap_nested_kvm_hv_apply(SpaprMachineState *spapr, uint8_t val, Error **errp) { ERRP_GUARD(); + PowerPCCPU *cpu = POWERPC_CPU(first_cpu); + if (!val) { /* capability disabled by default */ return; @@ -391,6 +393,14 @@ static void cap_nested_kvm_hv_apply(SpaprMachineState *spapr, error_setg(errp, "No Nested KVM-HV support in TCG"); error_append_hint(errp, "Try appending -machine cap-nested-hv=off\n"); } else if (kvm_enabled()) { + if (!ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00, 0, + spapr->max_compat_pvr)) { + error_setg(errp, "Nested KVM-HV only supported on POWER9"); + error_append_hint(errp, + "Try appending -machine max-cpu-compat=power9\n"); + return; + } + if (!kvmppc_has_cap_nested_kvm_hv()) { error_setg(errp, "KVM implementation does not support Nested KVM-HV"); From patchwork Tue Aug 18 04:18:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276237 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76570C433DF for ; Tue, 18 Aug 2020 04:25:44 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3DB48207BB for ; Tue, 18 Aug 2020 04:25:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="OlPL+R6v" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DB48207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:49498 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tBv-00013s-7u for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:25:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50004) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6B-0007VC-D2; Tue, 18 Aug 2020 00:19:47 -0400 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:56647 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t69-0006MS-GZ; Tue, 18 Aug 2020 00:19:47 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNb0msVz9sVF; Tue, 18 Aug 2020 14:19:27 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724367; bh=Vecwsc8w/Gi+tSL1ZQRvRrUML/0AnOdY4NFin78A5MY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OlPL+R6v2rWCzi6N3wqwpMSPEsV3mr1CjDl3obHR7G6WN1bEln0yUUmOxFKOGrS/q 1nFfX7dIPE93uNWsdxX96752XVg+ymd9hDcm9bijb3O7kPIJEEfnw+VXKSzVuscnat u4RCoozCgBAkztqxGGIZ0Tc4rzWAOFdNU+bQ8HIE= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 13/40] target/ppc: add vmulh{su}w instructions Date: Tue, 18 Aug 2020 14:18:55 +1000 Message-Id: <20200818041922.251708-14-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lijun Pan , Richard Henderson , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Lijun Pan vmulhsw: Vector Multiply High Signed Word vmulhuw: Vector Multiply High Unsigned Word Signed-off-by: Lijun Pan Message-Id: <20200724045845.89976-4-ljp@linux.ibm.com> Reviewed-by: Richard Henderson Signed-off-by: David Gibson --- target/ppc/helper.h | 2 ++ target/ppc/int_helper.c | 19 +++++++++++++++++++ target/ppc/translate/vmx-impl.inc.c | 6 ++++++ target/ppc/translate/vmx-ops.inc.c | 4 ++-- 4 files changed, 29 insertions(+), 2 deletions(-) diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 032da717f7..c218bb13ec 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -184,6 +184,8 @@ DEF_HELPER_3(vmulosw, void, avr, avr, avr) DEF_HELPER_3(vmuloub, void, avr, avr, avr) DEF_HELPER_3(vmulouh, void, avr, avr, avr) DEF_HELPER_3(vmulouw, void, avr, avr, avr) +DEF_HELPER_3(vmulhsw, void, avr, avr, avr) +DEF_HELPER_3(vmulhuw, void, avr, avr, avr) DEF_HELPER_3(vslo, void, avr, avr, avr) DEF_HELPER_3(vsro, void, avr, avr, avr) DEF_HELPER_3(vsrv, void, avr, avr, avr) diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 263e899fe0..1e866b7d3b 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -1086,6 +1086,25 @@ VMUL(uw, u32, VsrW, VsrD, uint64_t) #undef VMUL_DO_ODD #undef VMUL +void helper_vmulhsw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + int i; + + for (i = 0; i < 4; i++) { + r->s32[i] = (int32_t)(((int64_t)a->s32[i] * (int64_t)b->s32[i]) >> 32); + } +} + +void helper_vmulhuw(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) +{ + int i; + + for (i = 0; i < 4; i++) { + r->u32[i] = (uint32_t)(((uint64_t)a->u32[i] * + (uint64_t)b->u32[i]) >> 32); + } +} + void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c) { diff --git a/target/ppc/translate/vmx-impl.inc.c b/target/ppc/translate/vmx-impl.inc.c index f8e8b978ec..79631e56b4 100644 --- a/target/ppc/translate/vmx-impl.inc.c +++ b/target/ppc/translate/vmx-impl.inc.c @@ -811,9 +811,15 @@ GEN_VXFORM_V(vmulld, MO_64, tcg_gen_gvec_mul, 4, 7); GEN_VXFORM(vmuleub, 4, 8); GEN_VXFORM(vmuleuh, 4, 9); GEN_VXFORM(vmuleuw, 4, 10); +GEN_VXFORM(vmulhuw, 4, 10); +GEN_VXFORM_DUAL(vmuleuw, PPC_ALTIVEC, PPC_NONE, + vmulhuw, PPC_NONE, PPC2_ISA310); GEN_VXFORM(vmulesb, 4, 12); GEN_VXFORM(vmulesh, 4, 13); GEN_VXFORM(vmulesw, 4, 14); +GEN_VXFORM(vmulhsw, 4, 14); +GEN_VXFORM_DUAL(vmulesw, PPC_ALTIVEC, PPC_NONE, + vmulhsw, PPC_NONE, PPC2_ISA310); GEN_VXFORM_V(vslb, MO_8, tcg_gen_gvec_shlv, 2, 4); GEN_VXFORM_V(vslh, MO_16, tcg_gen_gvec_shlv, 2, 5); GEN_VXFORM_V(vslw, MO_32, tcg_gen_gvec_shlv, 2, 6); diff --git a/target/ppc/translate/vmx-ops.inc.c b/target/ppc/translate/vmx-ops.inc.c index b49787ac97..29701ad778 100644 --- a/target/ppc/translate/vmx-ops.inc.c +++ b/target/ppc/translate/vmx-ops.inc.c @@ -110,10 +110,10 @@ GEN_VXFORM_207(vmulosw, 4, 6), GEN_VXFORM_310(vmulld, 4, 7), GEN_VXFORM(vmuleub, 4, 8), GEN_VXFORM(vmuleuh, 4, 9), -GEN_VXFORM_207(vmuleuw, 4, 10), +GEN_VXFORM_DUAL(vmuleuw, vmulhuw, 4, 10, PPC_ALTIVEC, PPC_NONE), GEN_VXFORM(vmulesb, 4, 12), GEN_VXFORM(vmulesh, 4, 13), -GEN_VXFORM_207(vmulesw, 4, 14), +GEN_VXFORM_DUAL(vmulesw, vmulhsw, 4, 14, PPC_ALTIVEC, PPC_NONE), GEN_VXFORM(vslb, 2, 4), GEN_VXFORM(vslh, 2, 5), GEN_VXFORM_DUAL(vslw, vrlwnm, 2, 6, PPC_ALTIVEC, PPC_NONE), From patchwork Tue Aug 18 04:18:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276231 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13D81C433DF for ; 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Tue, 18 Aug 2020 00:19:49 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:43185 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6B-0006Mr-2U; Tue, 18 Aug 2020 00:19:49 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNb3pwKz9sVM; Tue, 18 Aug 2020 14:19:27 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724367; bh=p5k/N3bAXkiI8BCnZaFK1edTmmELskToQBlH18YDB1g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VqbgvlW2nz0yJEP34SYIca1YEfoONGnei9+Wj+IJoCB+TYx11gcGxViuNki3X86v0 Ol40UBei0lHNnoK9dGdnRAMbyQ1CnLl6E/RfubTONaQGEZlQGghhjW4gfvTRUFdfuV w41lf8VsyJR6On2G3RaSm3N6LDsNs8y07D3iD4t8= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 15/40] target/ppc: Fix SPE unavailable exception triggering Date: Tue, 18 Aug 2020 14:18:57 +1000 Message-Id: <20200818041922.251708-16-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Matthieu Bucchianeri , David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Matthieu Bucchianeri When emulating certain floating point instructions or vector instructions on PowerPC machines, QEMU did not properly generate the SPE/Embedded Floating- Point Unavailable interrupt. See the buglink further below for references to the relevant NXP documentation. This patch fixes the behavior of some evfs* instructions that were incorrectly emitting the interrupt. More importantly, this patch fixes the behavior of several efd* and ev* instructions that were not generating the interrupt. Triggering the interrupt for these instructions fixes lazy FPU/vector context switching on some operating systems like Linux. Without this patch, the result of some double-precision arithmetic could be corrupted due to the lack of proper saving and restoring of the upper 32-bit part of the general-purpose registers. Buglink: https://bugs.launchpad.net/qemu/+bug/1888918 Buglink: https://bugs.launchpad.net/qemu/+bug/1611394 Signed-off-by: Matthieu Bucchianeri Message-Id: <20200727175553.32276-1-matthieu.bucchianeri@leostella.com> Signed-off-by: David Gibson --- target/ppc/translate/spe-impl.inc.c | 97 +++++++++++++++++++---------- 1 file changed, 64 insertions(+), 33 deletions(-) diff --git a/target/ppc/translate/spe-impl.inc.c b/target/ppc/translate/spe-impl.inc.c index 42a0d1cffb..2e6e799a25 100644 --- a/target/ppc/translate/spe-impl.inc.c +++ b/target/ppc/translate/spe-impl.inc.c @@ -349,14 +349,24 @@ static inline void gen_evmergelohi(DisasContext *ctx) } static inline void gen_evsplati(DisasContext *ctx) { - uint64_t imm = ((int32_t)(rA(ctx->opcode) << 27)) >> 27; + uint64_t imm; + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } + imm = ((int32_t)(rA(ctx->opcode) << 27)) >> 27; tcg_gen_movi_tl(cpu_gpr[rD(ctx->opcode)], imm); tcg_gen_movi_tl(cpu_gprh[rD(ctx->opcode)], imm); } static inline void gen_evsplatfi(DisasContext *ctx) { - uint64_t imm = rA(ctx->opcode) << 27; + uint64_t imm; + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } + imm = rA(ctx->opcode) << 27; tcg_gen_movi_tl(cpu_gpr[rD(ctx->opcode)], imm); tcg_gen_movi_tl(cpu_gprh[rD(ctx->opcode)], imm); @@ -389,21 +399,37 @@ static inline void gen_evsel(DisasContext *ctx) static void gen_evsel0(DisasContext *ctx) { + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } gen_evsel(ctx); } static void gen_evsel1(DisasContext *ctx) { + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } gen_evsel(ctx); } static void gen_evsel2(DisasContext *ctx) { + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } gen_evsel(ctx); } static void gen_evsel3(DisasContext *ctx) { + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } gen_evsel(ctx); } @@ -518,6 +544,11 @@ static inline void gen_evmwsmia(DisasContext *ctx) { TCGv_i64 tmp; + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } + gen_evmwsmi(ctx); /* rD := rA * rB */ tmp = tcg_temp_new_i64(); @@ -534,6 +565,11 @@ static inline void gen_evmwsmiaa(DisasContext *ctx) TCGv_i64 acc; TCGv_i64 tmp; + if (unlikely(!ctx->spe_enabled)) { + gen_exception(ctx, POWERPC_EXCP_SPEU); + return; + } + gen_evmwsmi(ctx); /* rD := rA * rB */ acc = tcg_temp_new_i64(); @@ -892,8 +928,14 @@ static inline void gen_##name(DisasContext *ctx) \ #define GEN_SPEFPUOP_CONV_32_64(name) \ static inline void gen_##name(DisasContext *ctx) \ { \ - TCGv_i64 t0 = tcg_temp_new_i64(); \ - TCGv_i32 t1 = tcg_temp_new_i32(); \ + TCGv_i64 t0; \ + TCGv_i32 t1; \ + if (unlikely(!ctx->spe_enabled)) { \ + gen_exception(ctx, POWERPC_EXCP_SPEU); \ + return; \ + } \ + t0 = tcg_temp_new_i64(); \ + t1 = tcg_temp_new_i32(); \ gen_load_gpr64(t0, rB(ctx->opcode)); \ gen_helper_##name(t1, cpu_env, t0); \ tcg_gen_extu_i32_tl(cpu_gpr[rD(ctx->opcode)], t1); \ @@ -903,8 +945,14 @@ static inline void gen_##name(DisasContext *ctx) \ #define GEN_SPEFPUOP_CONV_64_32(name) \ static inline void gen_##name(DisasContext *ctx) \ { \ - TCGv_i64 t0 = tcg_temp_new_i64(); \ - TCGv_i32 t1 = tcg_temp_new_i32(); \ + TCGv_i64 t0; \ + TCGv_i32 t1; \ + if (unlikely(!ctx->spe_enabled)) { \ + gen_exception(ctx, POWERPC_EXCP_SPEU); \ + return; \ + } \ + t0 = tcg_temp_new_i64(); \ + t1 = tcg_temp_new_i32(); \ tcg_gen_trunc_tl_i32(t1, cpu_gpr[rB(ctx->opcode)]); \ gen_helper_##name(t0, cpu_env, t1); \ gen_store_gpr64(rD(ctx->opcode), t0); \ @@ -914,7 +962,12 @@ static inline void gen_##name(DisasContext *ctx) \ #define GEN_SPEFPUOP_CONV_64_64(name) \ static inline void gen_##name(DisasContext *ctx) \ { \ - TCGv_i64 t0 = tcg_temp_new_i64(); \ + TCGv_i64 t0; \ + if (unlikely(!ctx->spe_enabled)) { \ + gen_exception(ctx, POWERPC_EXCP_SPEU); \ + return; \ + } \ + t0 = tcg_temp_new_i64(); \ gen_load_gpr64(t0, rB(ctx->opcode)); \ gen_helper_##name(t0, cpu_env, t0); \ gen_store_gpr64(rD(ctx->opcode), t0); \ @@ -923,13 +976,8 @@ static inline void gen_##name(DisasContext *ctx) \ #define GEN_SPEFPUOP_ARITH2_32_32(name) \ static inline void gen_##name(DisasContext *ctx) \ { \ - TCGv_i32 t0, t1; \ - if (unlikely(!ctx->spe_enabled)) { \ - gen_exception(ctx, POWERPC_EXCP_SPEU); \ - return; \ - } \ - t0 = tcg_temp_new_i32(); \ - t1 = tcg_temp_new_i32(); \ + TCGv_i32 t0 = tcg_temp_new_i32(); \ + TCGv_i32 t1 = tcg_temp_new_i32(); \ tcg_gen_trunc_tl_i32(t0, cpu_gpr[rA(ctx->opcode)]); \ tcg_gen_trunc_tl_i32(t1, cpu_gpr[rB(ctx->opcode)]); \ gen_helper_##name(t0, cpu_env, t0, t1); \ @@ -958,13 +1006,8 @@ static inline void gen_##name(DisasContext *ctx) \ #define GEN_SPEFPUOP_COMP_32(name) \ static inline void gen_##name(DisasContext *ctx) \ { \ - TCGv_i32 t0, t1; \ - if (unlikely(!ctx->spe_enabled)) { \ - gen_exception(ctx, POWERPC_EXCP_SPEU); \ - return; \ - } \ - t0 = tcg_temp_new_i32(); \ - t1 = tcg_temp_new_i32(); \ + TCGv_i32 t0 = tcg_temp_new_i32(); \ + TCGv_i32 t1 = tcg_temp_new_i32(); \ \ tcg_gen_trunc_tl_i32(t0, cpu_gpr[rA(ctx->opcode)]); \ tcg_gen_trunc_tl_i32(t1, cpu_gpr[rB(ctx->opcode)]); \ @@ -1074,28 +1117,16 @@ GEN_SPEFPUOP_ARITH2_32_32(efsmul); GEN_SPEFPUOP_ARITH2_32_32(efsdiv); static inline void gen_efsabs(DisasContext *ctx) { - if (unlikely(!ctx->spe_enabled)) { - gen_exception(ctx, POWERPC_EXCP_SPEU); - return; - } tcg_gen_andi_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], (target_long)~0x80000000LL); } static inline void gen_efsnabs(DisasContext *ctx) { - if (unlikely(!ctx->spe_enabled)) { - gen_exception(ctx, POWERPC_EXCP_SPEU); - return; - } tcg_gen_ori_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 0x80000000); } static inline void gen_efsneg(DisasContext *ctx) { - if (unlikely(!ctx->spe_enabled)) { - gen_exception(ctx, POWERPC_EXCP_SPEU); - return; - } tcg_gen_xori_tl(cpu_gpr[rD(ctx->opcode)], cpu_gpr[rA(ctx->opcode)], 0x80000000); } From patchwork Tue Aug 18 04:18:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276235 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F40B9C433DF for ; Tue, 18 Aug 2020 04:27:16 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B950D207BB for ; Tue, 18 Aug 2020 04:27:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="e+G3uBtK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B950D207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:58830 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tDP-0004vQ-Vj for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:27:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50036) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6C-0007XG-Fi; Tue, 18 Aug 2020 00:19:48 -0400 Received: from bilbo.ozlabs.org ([2401:3900:2:1::2]:38309 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6A-0006Mv-Rg; Tue, 18 Aug 2020 00:19:48 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNb72Pfz9sVR; Tue, 18 Aug 2020 14:19:27 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724367; bh=K0+7r8i73nDpRDqs5tcp1Ji9n1M/AGHGHH0KokPDWwU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=e+G3uBtKwKOde6DKxoXugykpiqd395PVcVj+gYd5cE5MDsCnSEmzcl6JyGxDPLdb7 0mYj30LentksR5TPfY88W+Wuqa0mM3ysPUogFAmz/gI2vuEyyofGahKyUvA2Z0yrfA psCDDrIdfzCiuTdSkHv7WYdMdcFy387g8FcrqtWs= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 17/40] docs: Update POWER9 XIVE support for nested guests Date: Tue, 18 Aug 2020 14:18:59 +1000 Message-Id: <20200818041922.251708-18-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Gibson , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, =?utf-8?q?C=C3=A9dric_Le_Goater?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Cédric Le Goater It is not yet supported. Signed-off-by: Cédric Le Goater Message-Id: <20200804131639.407049-1-clg@kaod.org> Signed-off-by: David Gibson --- docs/specs/ppc-spapr-xive.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/specs/ppc-spapr-xive.rst b/docs/specs/ppc-spapr-xive.rst index 6159bc6eed..7199db730b 100644 --- a/docs/specs/ppc-spapr-xive.rst +++ b/docs/specs/ppc-spapr-xive.rst @@ -61,6 +61,11 @@ depend on the XIVE KVM capability of the host. On older kernels without XIVE KVM support, QEMU will use the emulated XIVE device as a fallback and on newer kernels (>=5.2), the KVM XIVE device. +XIVE native exploitation mode is not supported for KVM nested guests, +VMs running under a L1 hypervisor (KVM on pSeries). In that case, the +hypervisor will not advertise the KVM capability and QEMU will use the +emulated XIVE device, same as for older versions of KVM. + As a final refinement, the user can also switch the use of the KVM device with the machine option ``kernel_irqchip``. From patchwork Tue Aug 18 04:19:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276233 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99DECC433E1 for ; Tue, 18 Aug 2020 04:29:19 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5A758207BB for ; Tue, 18 Aug 2020 04:29:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="BRWsQzFP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5A758207BB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39048 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tFO-0008LX-IG for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:29:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50074) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6D-0007aO-Me; Tue, 18 Aug 2020 00:19:49 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:35941 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6B-0006Mx-7i; Tue, 18 Aug 2020 00:19:49 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNc1ZwYz9sRK; Tue, 18 Aug 2020 14:19:28 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724368; bh=6HX359pDH9E5Ws1o3UwRlX/kLzA+QilZAfwnA0x4H1k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BRWsQzFPIysHs6RDu4ED3pIJE7gDO6CPDKS79i8CeUbOHIV3CeLZ/2tOKP8PEFOuJ cb7EMNlg1r0Q93I0dnmKAIQoPN2EJjhRqV3cAu8+LLRHy4WK2AcFWan82pF+5ruqbc AplqYaJ63sw1VqZiHMyoW+XP5xaFo+UYG+tfs5Z8= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 18/40] spapr: Clarify error and documentation for broken KVM XICS Date: Tue, 18 Aug 2020 14:19:00 +1000 Message-Id: <20200818041922.251708-19-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Satheesh Rajendran , David Gibson , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, =?utf-8?q?C=C3=A9dric_Le_Goater?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz When starting an L2 KVM guest with `ic-mode=dual,kernel-irqchip=on`, QEMU fails with: KVM is too old to support ic-mode=dual,kernel-irqchip=on This error message was introduced to detect older KVM versions that didn't allow destruction and re-creation of the XICS KVM device that we do at reboot. But it is actually the same issue that we get with nested guests : when running under pseries, KVM currently provides a genuine XICS device (not the XICS-on-XIVE device that we get under powernv) which doesn't support destruction/re-creation. This will eventually be fixed in KVM but in the meantime, update the error message and documentation to mention the nested case. While here, mention that in "No XIVE support in KVM" section that this can also happen with "guest OSes supporting XIVE" since we check this at init time before starting the guest. Reported-by: Satheesh Rajendran Buglink: https://bugs.launchpad.net/qemu/+bug/1890290 Signed-off-by: Greg Kurz Message-Id: <159664243614.622889.18307368735989783528.stgit@bahia.lan> Reviewed-by: Cédric Le Goater Signed-off-by: David Gibson --- docs/specs/ppc-spapr-xive.rst | 5 ++++- hw/ppc/spapr_irq.c | 12 +++++++++--- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/docs/specs/ppc-spapr-xive.rst b/docs/specs/ppc-spapr-xive.rst index 7199db730b..7144347560 100644 --- a/docs/specs/ppc-spapr-xive.rst +++ b/docs/specs/ppc-spapr-xive.rst @@ -126,6 +126,9 @@ xics XICS KVM XICS emul. XICS KVM (1) QEMU warns with ``warning: kernel_irqchip requested but unavailable: IRQ_XIVE capability must be present for KVM`` + In some cases (old host kernels or KVM nested guests), one may hit a + QEMU/KVM incompatibility due to device destruction in reset. QEMU fails + with ``KVM is incompatible with ic-mode=dual,kernel-irqchip=on`` (2) QEMU fails with ``kernel_irqchip requested but unavailable: IRQ_XIVE capability must be present for KVM`` @@ -148,7 +151,7 @@ xics XICS KVM XICS emul. XICS KVM mode (XICS), either don't set the ic-mode machine property or try ic-mode=xics or ic-mode=dual`` (4) QEMU/KVM incompatibility due to device destruction in reset. QEMU fails - with ``KVM is too old to support ic-mode=dual,kernel-irqchip=on`` + with ``KVM is incompatible with ic-mode=dual,kernel-irqchip=on`` XIVE Device tree properties diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c index 2f8f7d62f8..72bb938375 100644 --- a/hw/ppc/spapr_irq.c +++ b/hw/ppc/spapr_irq.c @@ -139,6 +139,7 @@ SpaprIrq spapr_irq_dual = { static int spapr_irq_check(SpaprMachineState *spapr, Error **errp) { + ERRP_GUARD(); MachineState *machine = MACHINE(spapr); /* @@ -179,14 +180,19 @@ static int spapr_irq_check(SpaprMachineState *spapr, Error **errp) /* * On a POWER9 host, some older KVM XICS devices cannot be destroyed and - * re-created. Detect that early to avoid QEMU to exit later when the - * guest reboots. + * re-created. Same happens with KVM nested guests. Detect that early to + * avoid QEMU to exit later when the guest reboots. */ if (kvm_enabled() && spapr->irq == &spapr_irq_dual && kvm_kernel_irqchip_required() && xics_kvm_has_broken_disconnect(spapr)) { - error_setg(errp, "KVM is too old to support ic-mode=dual,kernel-irqchip=on"); + error_setg(errp, + "KVM is incompatible with ic-mode=dual,kernel-irqchip=on"); + error_append_hint(errp, + "This can happen with an old KVM or in a KVM nested guest.\n"); + error_append_hint(errp, + "Try without kernel-irqchip or with kernel-irqchip=off.\n"); return -1; } From patchwork Tue Aug 18 04:19:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276229 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 12FB4C433E3 for ; Tue, 18 Aug 2020 04:34:01 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D6741206DA for ; Tue, 18 Aug 2020 04:34:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="CUNbAnyU" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6741206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56196 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tJw-0006wl-2c for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:34:00 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50162) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6Y-0008Q5-4X; Tue, 18 Aug 2020 00:20:10 -0400 Received: from ozlabs.org ([203.11.71.1]:39803) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6W-0006NF-AO; Tue, 18 Aug 2020 00:20:09 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNc659Wz9sVZ; Tue, 18 Aug 2020 14:19:28 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724368; bh=br1dq6DE2bypNpRudqQL9GprFBfraC/xQtt+MK7jboA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CUNbAnyU2AQz7T2r5szy9Du4Z4iPBFGt7nvElZBNmWA0hKPUnmqC627vtv0gO8Ngc uC/4dqkYwp9n3DXr753rRdpoQO0LtBdtw/RVdL+uxh778eWUafroVkUfFz2I4NQ59/ bYXEboJIGPaNk/7jYr2mElpZVn/uZ/bD+kvqgRTM= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 20/40] spapr/xive: Simplify kvmppc_xive_disconnect() Date: Tue, 18 Aug 2020 14:19:02 +1000 Message-Id: <20200818041922.251708-21-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Since this function begins with: /* The KVM XIVE device is not in use */ if (!xive || xive->fd == -1) { return; } we obviously don't need to check xive->fd again. Signed-off-by: Greg Kurz Message-Id: <159673297296.766512.14780055521619233656.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index d55ea4670e..893a1ee77e 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -873,10 +873,8 @@ void kvmppc_xive_disconnect(SpaprInterruptController *intc) * and removed from the list of devices of the VM. The VCPU * presenters are also detached from the device. */ - if (xive->fd != -1) { - close(xive->fd); - xive->fd = -1; - } + close(xive->fd); + xive->fd = -1; kvm_kernel_irqchip = false; kvm_msi_via_irqfd_allowed = false; From patchwork Tue Aug 18 04:19:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276232 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19043C433E1 for ; Tue, 18 Aug 2020 04:31:13 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 94B5B206DA for ; Tue, 18 Aug 2020 04:31:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="L4YUi8yh" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 94B5B206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45248 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tHD-0002RS-F9 for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:31:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50112) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6H-0007kV-2c; Tue, 18 Aug 2020 00:19:53 -0400 Received: from ozlabs.org ([2401:3900:2:1::2]:42123) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6E-0006OJ-Sz; Tue, 18 Aug 2020 00:19:52 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNd4865z9sVg; Tue, 18 Aug 2020 14:19:29 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724369; bh=GD4OipZ8hOU2+/gyQ5TK/Laf6IOlG9KPRJDCNf+Gid0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L4YUi8yhsc/bFajsFSbUfqS9mvFyBgwvWanmJ5eflxH053sYETvHrdERWLc71yQcF HYv12So9mjvWvJRbIx6q/EIgXdtanSpB2OW5qE2TQ4gIBfdcObGJxZfbeGp6nd9cDQ +inRq/1N6ODssnvlGpAjIa6B41gos/ar5VRLgiRo= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 23/40] ppc/xive: Introduce dedicated kvm_irqchip_in_kernel() wrappers Date: Tue, 18 Aug 2020 14:19:05 +1000 Message-Id: <20200818041922.251708-24-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=2401:3900:2:1::2; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Gibson , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, =?utf-8?q?C=C3=A9dric_Le_Goater?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Calls to the KVM XIVE device are guarded by kvm_irqchip_in_kernel(). This ensures that QEMU won't try to use the device if KVM is disabled or if an in-kernel irqchip isn't required. When using ic-mode=dual with the pseries machine, we have two possible interrupt controllers: XIVE and XICS. The kvm_irqchip_in_kernel() helper will return true as soon as any of the KVM device is created. It might lure QEMU to think that the other one is also around, while it is not. This is exactly what happens with ic-mode=dual at machine init when claiming IRQ numbers, which must be done on all possible IRQ backends, eg. RTAS event sources or the PHB0 LSI table : only the KVM XICS device is active but we end up calling kvmppc_xive_source_reset_one() anyway, which fails. This doesn't cause any trouble because of another bug : kvmppc_xive_source_reset_one() lacks an error_setg() and callers don't see the failure. Most of the other kvmppc_xive_* functions have similar xive->fd checks to filter out the case when KVM XIVE isn't active. It might look safer to have idempotent functions but it doesn't really help to understand what's going on when debugging. Since we already have all the kvm_irqchip_in_kernel() in place, also have the callers to check xive->fd as well before calling KVM XIVE specific code. This is straight-forward for the spapr specific XIVE code. Some more care is needed for the platform agnostic XIVE code since it cannot access xive->fd directly. Introduce new in_kernel() methods in some base XIVE classes for this purpose and implement them only in spapr. In all cases, we still need to call kvm_irqchip_in_kernel() so that compilers can optimize the kvmppc_xive_* calls away when CONFIG_KVM isn't defined, thus avoiding the need for stubs. Signed-off-by: Greg Kurz Message-Id: <159679993438.876294.7285654331498605426.stgit@bahia.lan> Reviewed-by: Cédric Le Goater Signed-off-by: David Gibson --- hw/intc/spapr_xive.c | 45 +++++++++++++++++++++++++++++-------------- hw/intc/xive.c | 25 ++++++++++++++++++------ include/hw/ppc/xive.h | 1 + 3 files changed, 51 insertions(+), 20 deletions(-) diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c index 89c8cd9667..3c84f64dc4 100644 --- a/hw/intc/spapr_xive.c +++ b/hw/intc/spapr_xive.c @@ -148,12 +148,19 @@ static void spapr_xive_end_pic_print_info(SpaprXive *xive, XiveEND *end, xive_end_queue_pic_print_info(end, 6, mon); } +/* + * kvm_irqchip_in_kernel() will cause the compiler to turn this + * info a nop if CONFIG_KVM isn't defined. + */ +#define spapr_xive_in_kernel(xive) \ + (kvm_irqchip_in_kernel() && (xive)->fd != -1) + void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon) { XiveSource *xsrc = &xive->source; int i; - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_synchronize_state(xive, &local_err); @@ -507,8 +514,10 @@ static const VMStateDescription vmstate_spapr_xive_eas = { static int vmstate_spapr_xive_pre_save(void *opaque) { - if (kvm_irqchip_in_kernel()) { - return kvmppc_xive_pre_save(SPAPR_XIVE(opaque)); + SpaprXive *xive = SPAPR_XIVE(opaque); + + if (spapr_xive_in_kernel(xive)) { + return kvmppc_xive_pre_save(xive); } return 0; @@ -520,8 +529,10 @@ static int vmstate_spapr_xive_pre_save(void *opaque) */ static int spapr_xive_post_load(SpaprInterruptController *intc, int version_id) { - if (kvm_irqchip_in_kernel()) { - return kvmppc_xive_post_load(SPAPR_XIVE(intc), version_id); + SpaprXive *xive = SPAPR_XIVE(intc); + + if (spapr_xive_in_kernel(xive)) { + return kvmppc_xive_post_load(xive, version_id); } return 0; @@ -564,7 +575,7 @@ static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn, xive_source_irq_set_lsi(xsrc, lisn); } - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { return kvmppc_xive_source_reset_one(xsrc, lisn, errp); } @@ -641,7 +652,7 @@ static void spapr_xive_set_irq(SpaprInterruptController *intc, int irq, int val) { SpaprXive *xive = SPAPR_XIVE(intc); - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { kvmppc_xive_source_set_irq(&xive->source, irq, val); } else { xive_source_set_irq(&xive->source, irq, val); @@ -749,11 +760,16 @@ static void spapr_xive_deactivate(SpaprInterruptController *intc) spapr_xive_mmio_set_enabled(xive, false); - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { kvmppc_xive_disconnect(intc); } } +static bool spapr_xive_in_kernel_xptr(const XivePresenter *xptr) +{ + return spapr_xive_in_kernel(SPAPR_XIVE(xptr)); +} + static void spapr_xive_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -788,6 +804,7 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data) sicc->post_load = spapr_xive_post_load; xpc->match_nvt = spapr_xive_match_nvt; + xpc->in_kernel = spapr_xive_in_kernel_xptr; } static const TypeInfo spapr_xive_info = { @@ -1058,7 +1075,7 @@ static target_ulong h_int_set_source_config(PowerPCCPU *cpu, new_eas.w = xive_set_field64(EAS_END_DATA, new_eas.w, eisn); } - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_set_source_config(xive, lisn, &new_eas, &local_err); @@ -1379,7 +1396,7 @@ static target_ulong h_int_set_queue_config(PowerPCCPU *cpu, */ out: - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_set_queue_config(xive, end_blk, end_idx, &end, &local_err); @@ -1480,7 +1497,7 @@ static target_ulong h_int_get_queue_config(PowerPCCPU *cpu, args[2] = 0; } - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_get_queue_config(xive, end_blk, end_idx, end, &local_err); @@ -1642,7 +1659,7 @@ static target_ulong h_int_esb(PowerPCCPU *cpu, return H_P3; } - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { args[0] = kvmppc_xive_esb_rw(xsrc, lisn, offset, data, flags & SPAPR_XIVE_ESB_STORE); } else { @@ -1717,7 +1734,7 @@ static target_ulong h_int_sync(PowerPCCPU *cpu, * under KVM */ - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_sync_source(xive, lisn, &local_err); @@ -1761,7 +1778,7 @@ static target_ulong h_int_reset(PowerPCCPU *cpu, device_legacy_reset(DEVICE(xive)); - if (kvm_irqchip_in_kernel()) { + if (spapr_xive_in_kernel(xive)) { Error *local_err = NULL; kvmppc_xive_reset(xive, &local_err); diff --git a/hw/intc/xive.c b/hw/intc/xive.c index 561d746cd1..a453e8f4dc 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -592,6 +592,17 @@ static const char * const xive_tctx_ring_names[] = { "USER", "OS", "POOL", "PHYS", }; +/* + * kvm_irqchip_in_kernel() will cause the compiler to turn this + * info a nop if CONFIG_KVM isn't defined. + */ +#define xive_in_kernel(xptr) \ + (kvm_irqchip_in_kernel() && \ + ({ \ + XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr); \ + xpc->in_kernel ? xpc->in_kernel(xptr) : false; \ + })) + void xive_tctx_pic_print_info(XiveTCTX *tctx, Monitor *mon) { int cpu_index; @@ -606,7 +617,7 @@ void xive_tctx_pic_print_info(XiveTCTX *tctx, Monitor *mon) cpu_index = tctx->cs ? tctx->cs->cpu_index : -1; - if (kvm_irqchip_in_kernel()) { + if (xive_in_kernel(tctx->xptr)) { Error *local_err = NULL; kvmppc_xive_cpu_synchronize_state(tctx, &local_err); @@ -671,7 +682,7 @@ static void xive_tctx_realize(DeviceState *dev, Error **errp) } /* Connect the presenter to the VCPU (required for CPU hotplug) */ - if (kvm_irqchip_in_kernel()) { + if (xive_in_kernel(tctx->xptr)) { kvmppc_xive_cpu_connect(tctx, &local_err); if (local_err) { error_propagate(errp, local_err); @@ -682,10 +693,11 @@ static void xive_tctx_realize(DeviceState *dev, Error **errp) static int vmstate_xive_tctx_pre_save(void *opaque) { + XiveTCTX *tctx = XIVE_TCTX(opaque); Error *local_err = NULL; - if (kvm_irqchip_in_kernel()) { - kvmppc_xive_cpu_get_state(XIVE_TCTX(opaque), &local_err); + if (xive_in_kernel(tctx->xptr)) { + kvmppc_xive_cpu_get_state(tctx, &local_err); if (local_err) { error_report_err(local_err); return -1; @@ -697,14 +709,15 @@ static int vmstate_xive_tctx_pre_save(void *opaque) static int vmstate_xive_tctx_post_load(void *opaque, int version_id) { + XiveTCTX *tctx = XIVE_TCTX(opaque); Error *local_err = NULL; - if (kvm_irqchip_in_kernel()) { + if (xive_in_kernel(tctx->xptr)) { /* * Required for hotplugged CPU, for which the state comes * after all states of the machine. */ - kvmppc_xive_cpu_set_state(XIVE_TCTX(opaque), &local_err); + kvmppc_xive_cpu_set_state(tctx, &local_err); if (local_err) { error_report_err(local_err); return -1; diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index 82a61eaca7..2f3c5af810 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -402,6 +402,7 @@ typedef struct XivePresenterClass { uint8_t nvt_blk, uint32_t nvt_idx, bool cam_ignore, uint8_t priority, uint32_t logic_serv, XiveTCTXMatch *match); + bool (*in_kernel)(const XivePresenter *xptr); } XivePresenterClass; int xive_presenter_tctx_match(XivePresenter *xptr, XiveTCTX *tctx, From patchwork Tue Aug 18 04:19:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276228 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FC48C433E1 for ; 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Tue, 18 Aug 2020 00:20:15 -0400 Received: from ozlabs.org ([203.11.71.1]:58825) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6a-0006Oh-AT; Tue, 18 Aug 2020 00:20:14 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNf0vsjz9sVl; Tue, 18 Aug 2020 14:19:29 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724370; bh=1da+r63XMtfDKfovfHV2ixQ8/lrIVVmvb8+ZRQhBjuc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=A0v1hKrhYwcsiNQ+fm17n7pDcN14Qum9N/UtgU5n4cqMXgJVeZdDK6CTQ9XA6B/6w fGM7mYBc1V643oW7MBpJaPRyg8Qt0PbZOzBawmXxiY+lDloIHQaXQSqvkCMonP310m o3I4iCiT3ngeLO1w6byi45/5XTVnoImkBujak3IU= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 25/40] spapr: Simplify error handling in spapr_phb_realize() Date: Tue, 18 Aug 2020 14:19:07 +1000 Message-Id: <20200818041922.251708-26-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Gibson , qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Markus Armbruster Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz The spapr_phb_realize() function has a local_err variable which is used to: 1) check failures of spapr_irq_findone() and spapr_irq_claim() 2) prepend extra information to the error message Recent work from Markus Armbruster highlighted we get better code when testing the return value of a function, rather than setting up all the local_err boiler plate. For similar reasons, it is now preferred to use ERRP_GUARD() and error_prepend() rather than error_propagate_prepend(). Since spapr_irq_findone() and spapr_irq_claim() return negative values in case of failure, do both changes. This is just cleanup, no functional impact. Signed-off-by: Greg Kurz Reviewed-by: Markus Armbruster Reviewed-by: David Gibson Message-Id: <159707843851.1489912.6108405733810934642.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/ppc/spapr_pci.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/hw/ppc/spapr_pci.c b/hw/ppc/spapr_pci.c index 363cdb3f7b..0a418f1e67 100644 --- a/hw/ppc/spapr_pci.c +++ b/hw/ppc/spapr_pci.c @@ -1796,6 +1796,7 @@ static void spapr_phb_destroy_msi(gpointer opaque) static void spapr_phb_realize(DeviceState *dev, Error **errp) { + ERRP_GUARD(); /* We don't use SPAPR_MACHINE() in order to exit gracefully if the user * tries to add a sPAPR PHB to a non-pseries machine. */ @@ -1813,7 +1814,6 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) uint64_t msi_window_size = 4096; SpaprTceTable *tcet; const unsigned windows_supported = spapr_phb_windows_supported(sphb); - Error *local_err = NULL; if (!spapr) { error_setg(errp, TYPE_SPAPR_PCI_HOST_BRIDGE " needs a pseries machine"); @@ -1964,13 +1964,12 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) /* Initialize the LSI table */ for (i = 0; i < PCI_NUM_PINS; i++) { - uint32_t irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i; + int irq = SPAPR_IRQ_PCI_LSI + sphb->index * PCI_NUM_PINS + i; if (smc->legacy_irq_allocation) { - irq = spapr_irq_findone(spapr, &local_err); - if (local_err) { - error_propagate_prepend(errp, local_err, - "can't allocate LSIs: "); + irq = spapr_irq_findone(spapr, errp); + if (irq < 0) { + error_prepend(errp, "can't allocate LSIs: "); /* * Older machines will never support PHB hotplug, ie, this is an * init only path and QEMU will terminate. No need to rollback. @@ -1979,9 +1978,8 @@ static void spapr_phb_realize(DeviceState *dev, Error **errp) } } - spapr_irq_claim(spapr, irq, true, &local_err); - if (local_err) { - error_propagate_prepend(errp, local_err, "can't allocate LSIs: "); + if (spapr_irq_claim(spapr, irq, true, errp) < 0) { + error_prepend(errp, "can't allocate LSIs: "); goto unrealize; } From patchwork Tue Aug 18 04:19:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276230 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D983FC433E1 for ; Tue, 18 Aug 2020 04:33:46 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9A7E1206DA for ; Tue, 18 Aug 2020 04:33:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="nz3DZOYf" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A7E1206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55514 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tJh-0006gE-R2 for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:33:45 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50236) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6c-0008VH-JT; Tue, 18 Aug 2020 00:20:14 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:48627 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6a-0006Oj-BS; Tue, 18 Aug 2020 00:20:14 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNf2jZfz9sVm; Tue, 18 Aug 2020 14:19:30 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724370; bh=1fY7gsMnGeqZ/lY92mpYJITNA+piIKuRjGuAk/i1iQ0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nz3DZOYfB8c4GPc24FZLfrRYFknolmy5sA+/ojUJq1y/co93W2RnIL8iOCPkgBToT tL07YGsEr41wM2eQGVW5N9Zix1PtBxjHcacFFFGZw7O32TYkTMkmDq8KB1XQpUcvhp E8qTLHH4YlbN0JQjwiNGFGgSqwEJeC6BHYD3I35g= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 26/40] spapr/xive: Rework error handling of kvmppc_xive_cpu_connect() Date: Tue, 18 Aug 2020 14:19:08 +1000 Message-Id: <20200818041922.251708-27-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Use error_setg_errno() instead of error_setg(strerror()). While here, use -ret instead of errno since kvm_vcpu_enable_cap() returns a negative errno on failure. Use ERRP_GUARD() to ensure that errp can be passed to error_append_hint(), and get rid of the local_err boilerplate. Propagate the return value so that callers may use it as well to check failures. Signed-off-by: Greg Kurz Message-Id: <159707844549.1489912.4862921680328017645.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 21 ++++++++++----------- include/hw/ppc/xive.h | 2 +- 2 files changed, 11 insertions(+), 12 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index 82a6f99f02..aa1a2f9153 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -144,8 +144,9 @@ void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp) } } -void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp) +int kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp) { + ERRP_GUARD(); SpaprXive *xive = SPAPR_XIVE(tctx->xptr); unsigned long vcpu_id; int ret; @@ -154,7 +155,7 @@ void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp) /* Check if CPU was hot unplugged and replugged. */ if (kvm_cpu_is_enabled(tctx->cs)) { - return; + return 0; } vcpu_id = kvm_arch_vcpu_id(tctx->cs); @@ -162,20 +163,18 @@ void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp) ret = kvm_vcpu_enable_cap(tctx->cs, KVM_CAP_PPC_IRQ_XIVE, 0, xive->fd, vcpu_id, 0); if (ret < 0) { - Error *local_err = NULL; - - error_setg(&local_err, - "XIVE: unable to connect CPU%ld to KVM device: %s", - vcpu_id, strerror(errno)); - if (errno == ENOSPC) { - error_append_hint(&local_err, "Try -smp maxcpus=N with N < %u\n", + error_setg_errno(errp, -ret, + "XIVE: unable to connect CPU%ld to KVM device", + vcpu_id); + if (ret == -ENOSPC) { + error_append_hint(errp, "Try -smp maxcpus=N with N < %u\n", MACHINE(qdev_get_machine())->smp.max_cpus); } - error_propagate(errp, local_err); - return; + return ret; } kvm_cpu_enable(tctx->cs); + return 0; } /* diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index 2f3c5af810..2d87ed4372 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -487,7 +487,7 @@ void xive_tctx_ipb_update(XiveTCTX *tctx, uint8_t ring, uint8_t ipb); int kvmppc_xive_source_reset_one(XiveSource *xsrc, int srcno, Error **errp); void kvmppc_xive_source_set_irq(void *opaque, int srcno, int val); -void kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp); +int kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp); void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp); void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp); void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp); From patchwork Tue Aug 18 04:19:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276227 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9095CC433DF for ; Tue, 18 Aug 2020 04:36:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5C239206DA for ; Tue, 18 Aug 2020 04:36:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="MtSPeq0R" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C239206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:38876 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tLu-00030O-It for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:36:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50286) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6g-00009K-CJ; Tue, 18 Aug 2020 00:20:19 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:51551 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6e-0006PG-Dw; Tue, 18 Aug 2020 00:20:18 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNg3NFKz9sVt; Tue, 18 Aug 2020 14:19:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724371; bh=84GQnKrJ/KKX2ARDOv43YFIXRVyBvCRDdcNlh8ieclo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MtSPeq0RX/VviDGUIHidGFb8LQk/k5EoWN0MqrvCD0OrBUb3f8+L75QsHllEsGOCK 2FjvefUw+msCth5N4866CWMo6uy+tI+5C64PQYpY1NBJZXuSqc+r18+u4DMAUJjRuG AHdfnGogSFCzI7wgv7UiqPW1XDn/CHBRRv/lHPws= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 29/40] spapr/xive: Rework error handling of kvmppc_xive_cpu_[gs]et_state() Date: Tue, 18 Aug 2020 14:19:11 +1000 Message-Id: <20200818041922.251708-30-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz kvm_set_one_reg() returns a negative errno on failure, use that instead of errno. Also propagate it to callers so they can use it to check for failures and hopefully get rid of their local_err boilerplate. Signed-off-by: Greg Kurz Message-Id: <159707846665.1489912.14267225652103441921.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 15 ++++++++++----- include/hw/ppc/xive.h | 4 ++-- 2 files changed, 12 insertions(+), 7 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index b2a36fd59d..5e088ccbf8 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -73,7 +73,7 @@ static void kvm_cpu_disable_all(void) * XIVE Thread Interrupt Management context (KVM) */ -void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp) +int kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp) { SpaprXive *xive = SPAPR_XIVE(tctx->xptr); uint64_t state[2]; @@ -86,13 +86,16 @@ void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp) ret = kvm_set_one_reg(tctx->cs, KVM_REG_PPC_VP_STATE, state); if (ret != 0) { - error_setg_errno(errp, errno, + error_setg_errno(errp, -ret, "XIVE: could not restore KVM state of CPU %ld", kvm_arch_vcpu_id(tctx->cs)); + return ret; } + + return 0; } -void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp) +int kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp) { SpaprXive *xive = SPAPR_XIVE(tctx->xptr); uint64_t state[2] = { 0 }; @@ -102,14 +105,16 @@ void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp) ret = kvm_get_one_reg(tctx->cs, KVM_REG_PPC_VP_STATE, state); if (ret != 0) { - error_setg_errno(errp, errno, + error_setg_errno(errp, -ret, "XIVE: could not capture KVM state of CPU %ld", kvm_arch_vcpu_id(tctx->cs)); - return; + return ret; } /* word0 and word1 of the OS ring. */ *((uint64_t *) &tctx->regs[TM_QW1_OS]) = state[0]; + + return 0; } typedef struct { diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h index 2d87ed4372..785c905357 100644 --- a/include/hw/ppc/xive.h +++ b/include/hw/ppc/xive.h @@ -489,7 +489,7 @@ int kvmppc_xive_source_reset_one(XiveSource *xsrc, int srcno, Error **errp); void kvmppc_xive_source_set_irq(void *opaque, int srcno, int val); int kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp); void kvmppc_xive_cpu_synchronize_state(XiveTCTX *tctx, Error **errp); -void kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp); -void kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp); +int kvmppc_xive_cpu_get_state(XiveTCTX *tctx, Error **errp); +int kvmppc_xive_cpu_set_state(XiveTCTX *tctx, Error **errp); #endif /* PPC_XIVE_H */ From patchwork Tue Aug 18 04:19:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276226 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D726FC433E1 for ; Tue, 18 Aug 2020 04:37:12 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A1E58206DA for ; Tue, 18 Aug 2020 04:37:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="bM8QcPXw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A1E58206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:46928 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tN1-0006Do-Tb for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:37:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50344) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7K-0000Yb-6K; Tue, 18 Aug 2020 00:20:58 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:45515 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t6w-0006RB-KU; Tue, 18 Aug 2020 00:20:57 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNg6pSVz9sW0; Tue, 18 Aug 2020 14:19:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724371; bh=DbwC+sECnYhm8wnwfJMYaLz7+bbwY+b1px5widsSuz8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bM8QcPXwPvGNSBVGycV+xJjabiV9dD6eVuJouNL4dzra26j/e/pYcghSRaNveCLN0 mVWfyWB+OrFsz/uIn6BItmPutFg7cBariLoYE0yvTOwWu6l1kR5xAq3dkRjJGkHogl Qs6XnPIYmz5la9oEXAAa4/NBJlj4SifTqBPh0sIY= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 31/40] spapr/xive: Rework error handling in kvmppc_xive_get_queues() Date: Tue, 18 Aug 2020 14:19:13 +1000 Message-Id: <20200818041922.251708-32-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Since kvmppc_xive_get_queue_config() has a return value, convert kvmppc_xive_get_queues() to use it for error checking. This allows to get rid of the local_err boiler plate. Propagate the return value so that callers may use it as well to check failures. Signed-off-by: Greg Kurz Message-Id: <159707848069.1489912.14879208798696134531.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index 696623f717..4142aaffff 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -467,23 +467,24 @@ void kvmppc_xive_reset(SpaprXive *xive, Error **errp) NULL, true, errp); } -static void kvmppc_xive_get_queues(SpaprXive *xive, Error **errp) +static int kvmppc_xive_get_queues(SpaprXive *xive, Error **errp) { - Error *local_err = NULL; int i; + int ret; for (i = 0; i < xive->nr_ends; i++) { if (!xive_end_is_valid(&xive->endt[i])) { continue; } - kvmppc_xive_get_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i, - &xive->endt[i], &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; + ret = kvmppc_xive_get_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i, + &xive->endt[i], errp); + if (ret < 0) { + return ret; } } + + return 0; } /* From patchwork Tue Aug 18 04:19:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276222 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B39C3C433E1 for ; Tue, 18 Aug 2020 04:42:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 74960206DA for ; Tue, 18 Aug 2020 04:42:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="hqqVhKK6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 74960206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tRi-0005OY-L9 for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:42:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50566) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7W-00014K-9x; Tue, 18 Aug 2020 00:21:10 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:54639 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7T-0006Ra-8P; Tue, 18 Aug 2020 00:21:09 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNh0RC3z9sW1; Tue, 18 Aug 2020 14:19:32 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724372; bh=f17eHWmr0QrRSY6D5qBKY2clFh9KCJR5rbxvIA2fYXQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hqqVhKK6ekY7HZnu4m7Y2c7i8n4OfkYXJJSDhG5pinS+Wp6IYrZqCSeyJNSRQNXDi VSB/L9d1HRcnU0j6bws6EkxeGu9aWHooI0Z40jOmQwW4PUuTiLAXu7A5GsWE9fLmX1 Ms2MOi8fwUVSHpSUQjKYP+Hjz1RUENEfwLu9IIYY= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 32/40] spapr/xive: Rework error handling of kvmppc_xive_set_source_config() Date: Tue, 18 Aug 2020 14:19:14 +1000 Message-Id: <20200818041922.251708-33-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Since kvm_device_access() returns a negative errno on failure, convert kvmppc_xive_set_source_config() to use it for error checking. This allows to get rid of the local_err boilerplate. Propagate the return value so that callers may use it as well to check failures. Signed-off-by: Greg Kurz Message-Id: <159707848764.1489912.17078842252160674523.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 13 ++++--------- include/hw/ppc/spapr_xive.h | 4 ++-- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index 4142aaffff..f2dda69218 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -186,8 +186,8 @@ int kvmppc_xive_cpu_connect(XiveTCTX *tctx, Error **errp) * XIVE Interrupt Source (KVM) */ -void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, - Error **errp) +int kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, + Error **errp) { uint32_t end_idx; uint32_t end_blk; @@ -196,7 +196,6 @@ void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, bool masked; uint32_t eisn; uint64_t kvm_src; - Error *local_err = NULL; assert(xive_eas_is_valid(eas)); @@ -216,12 +215,8 @@ void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, kvm_src |= ((uint64_t)eisn << KVM_XIVE_SOURCE_EISN_SHIFT) & KVM_XIVE_SOURCE_EISN_MASK; - kvm_device_access(xive->fd, KVM_DEV_XIVE_GRP_SOURCE_CONFIG, lisn, - &kvm_src, true, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } + return kvm_device_access(xive->fd, KVM_DEV_XIVE_GRP_SOURCE_CONFIG, lisn, + &kvm_src, true, errp); } void kvmppc_xive_sync_source(SpaprXive *xive, uint32_t lisn, Error **errp) diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h index d0a08b618f..0ffbe0be02 100644 --- a/include/hw/ppc/spapr_xive.h +++ b/include/hw/ppc/spapr_xive.h @@ -80,8 +80,8 @@ int kvmppc_xive_connect(SpaprInterruptController *intc, uint32_t nr_servers, Error **errp); void kvmppc_xive_disconnect(SpaprInterruptController *intc); void kvmppc_xive_reset(SpaprXive *xive, Error **errp); -void kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, - Error **errp); +int kvmppc_xive_set_source_config(SpaprXive *xive, uint32_t lisn, XiveEAS *eas, + Error **errp); void kvmppc_xive_sync_source(SpaprXive *xive, uint32_t lisn, Error **errp); uint64_t kvmppc_xive_esb_rw(XiveSource *xsrc, int srcno, uint32_t offset, uint64_t data, bool write); From patchwork Tue Aug 18 04:19:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276225 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9CBF2C433DF for ; Tue, 18 Aug 2020 04:38:09 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 67F4A206DA for ; 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Tue, 18 Aug 2020 00:21:08 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNh1bhwz9sW3; Tue, 18 Aug 2020 14:19:32 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724372; bh=/tKjcLtS76XXLQ/pn0TEycoIQ/uHeOAgdmkWU4oTH6k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XWe1UumWCfLxtN6cKNqDez3m20Q5wVSR0eihIJhXod2sGvR0anQJzrnILsOxaHG2Z Jsd8YuqWuGJdm+c/xW0l/JAXVzHmxWrB4CA8YKgqUbfyZbYQmswXpyTqMZA6YI2lQk q30qRVDbcfC82s/ncoaHfcn1xq2xZTTOWhUPjtrA= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 33/40] spapr/kvm: Fix error handling in kvmppc_xive_pre_save() Date: Tue, 18 Aug 2020 14:19:15 +1000 Message-Id: <20200818041922.251708-34-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Now that kvmppc_xive_get_queues() returns a negative errno on failure, check with that because it is preferred to local_err. And most of all, propagate it because vmstate expects negative errnos. Signed-off-by: Greg Kurz Message-Id: <159707849455.1489912.6034461176847728064.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index f2dda69218..1686b036eb 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -604,16 +604,17 @@ void kvmppc_xive_synchronize_state(SpaprXive *xive, Error **errp) int kvmppc_xive_pre_save(SpaprXive *xive) { Error *local_err = NULL; + int ret; assert(xive->fd != -1); /* EAT: there is no extra state to query from KVM */ /* ENDT */ - kvmppc_xive_get_queues(xive, &local_err); - if (local_err) { + ret = kvmppc_xive_get_queues(xive, &local_err); + if (ret < 0) { error_report_err(local_err); - return -1; + return ret; } return 0; From patchwork Tue Aug 18 04:19:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276223 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC871C433DF for ; Tue, 18 Aug 2020 04:40:35 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 74ECE2054F for ; Tue, 18 Aug 2020 04:40:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="Q4BDq/NT" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 74ECE2054F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60726 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tQI-0003P5-Mw for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:40:34 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50562) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7W-00013r-5Z; Tue, 18 Aug 2020 00:21:10 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:38513 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7T-0006Rh-2d; Tue, 18 Aug 2020 00:21:09 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNh4sT8z9sW4; Tue, 18 Aug 2020 14:19:32 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724372; bh=190f+V+vuJPVY9rkM/6szxDl+6qCDUsVZleu5RtI4uU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q4BDq/NTxdlUl1I0ClKcaRRq6ewbT/jJo81tIh/1pbZZYNJIwIRAtpT0uG2Uv6Krs X+H2AgL+rM9eUPKBf66ZuQiMOllVLcpuQnDdL6Q4hDC7YFCf9SWDws2DS7SUOauJn9 PHkjP5ThMZfnxr3ex/chRQzwbWFDaVbrsqBDYYZg= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 34/40] spapr/xive: Fix error handling in kvmppc_xive_post_load() Date: Tue, 18 Aug 2020 14:19:16 +1000 Message-Id: <20200818041922.251708-35-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Now that all these functions return a negative errno on failure, check that because it is preferred to local_err. And most of all, propagate it because vmstate expects negative errnos. Signed-off-by: Greg Kurz Message-Id: <159707850148.1489912.18355118622296682631.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/spapr_xive_kvm.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/hw/intc/spapr_xive_kvm.c b/hw/intc/spapr_xive_kvm.c index 1686b036eb..005729ebff 100644 --- a/hw/intc/spapr_xive_kvm.c +++ b/hw/intc/spapr_xive_kvm.c @@ -631,6 +631,7 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id) Error *local_err = NULL; CPUState *cs; int i; + int ret; /* The KVM XIVE device should be in use */ assert(xive->fd != -1); @@ -641,11 +642,10 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id) continue; } - kvmppc_xive_set_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i, - &xive->endt[i], &local_err); - if (local_err) { - error_report_err(local_err); - return -1; + ret = kvmppc_xive_set_queue_config(xive, SPAPR_XIVE_BLOCK_ID, i, + &xive->endt[i], &local_err); + if (ret < 0) { + goto fail; } } @@ -660,16 +660,14 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id) * previously set in KVM. Since we don't do that for all interrupts * at reset time anymore, let's do it now. */ - kvmppc_xive_source_reset_one(&xive->source, i, &local_err); - if (local_err) { - error_report_err(local_err); - return -1; + ret = kvmppc_xive_source_reset_one(&xive->source, i, &local_err); + if (ret < 0) { + goto fail; } - kvmppc_xive_set_source_config(xive, i, &xive->eat[i], &local_err); - if (local_err) { - error_report_err(local_err); - return -1; + ret = kvmppc_xive_set_source_config(xive, i, &xive->eat[i], &local_err); + if (ret < 0) { + goto fail; } } @@ -686,15 +684,18 @@ int kvmppc_xive_post_load(SpaprXive *xive, int version_id) CPU_FOREACH(cs) { PowerPCCPU *cpu = POWERPC_CPU(cs); - kvmppc_xive_cpu_set_state(spapr_cpu_state(cpu)->tctx, &local_err); - if (local_err) { - error_report_err(local_err); - return -1; + ret = kvmppc_xive_cpu_set_state(spapr_cpu_state(cpu)->tctx, &local_err); + if (ret < 0) { + goto fail; } } /* The source states will be restored when the machine starts running */ return 0; + +fail: + error_report_err(local_err); + return ret; } /* Returns MAP_FAILED on error and sets errno */ From patchwork Tue Aug 18 04:19:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Gibson X-Patchwork-Id: 276224 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66A38C433DF for ; Tue, 18 Aug 2020 04:39:17 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3033F206DA for ; Tue, 18 Aug 2020 04:39:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="kCn/HJmw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3033F206DA Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56476 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7tP2-0001fE-6S for qemu-devel@archiver.kernel.org; Tue, 18 Aug 2020 00:39:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50524) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7U-00010B-Qn; Tue, 18 Aug 2020 00:21:08 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:58983 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7t7T-0006Rr-2a; Tue, 18 Aug 2020 00:21:08 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BVyNh6qTmz9sW5; Tue, 18 Aug 2020 14:19:32 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1597724372; bh=tGp8arJc1GfPjA66OlF7aLV68t4YlEwdGzyvgzTqt4w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kCn/HJmw/3QSC5rCw2kxQRvseTFgmUY1iYTI5qqHimCwMNPQ2Huxvf5gEelW7of2I G5rELbxGk6QLRWR9hkug6p/Bc1XKKTwXRFGMmeQvmf4x+6ntrdBwOdCm5oixJq6xQh Zj1hKqpYblOstdOKhhu08520wE30+wgo/bTmRF5o= From: David Gibson To: peter.maydell@linaro.org, groug@kaod.org Subject: [PULL 35/40] ppc/xive: Fix error handling in vmstate_xive_tctx_*() callbacks Date: Tue, 18 Aug 2020 14:19:17 +1000 Message-Id: <20200818041922.251708-36-david@gibson.dropbear.id.au> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200818041922.251708-1-david@gibson.dropbear.id.au> References: <20200818041922.251708-1-david@gibson.dropbear.id.au> MIME-Version: 1.0 Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/18 00:19:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, David Gibson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Greg Kurz Now that kvmppc_xive_cpu_get_state() and kvmppc_xive_cpu_set_state() return negative errnos on failures, use that instead local_err because it is the recommended practice. Also return that instead of -1 since vmstate expects negative errnos. Signed-off-by: Greg Kurz Message-Id: <159707850840.1489912.14912810818646455474.stgit@bahia.lan> Signed-off-by: David Gibson --- hw/intc/xive.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/hw/intc/xive.c b/hw/intc/xive.c index a453e8f4dc..17ca5a1916 100644 --- a/hw/intc/xive.c +++ b/hw/intc/xive.c @@ -695,12 +695,13 @@ static int vmstate_xive_tctx_pre_save(void *opaque) { XiveTCTX *tctx = XIVE_TCTX(opaque); Error *local_err = NULL; + int ret; if (xive_in_kernel(tctx->xptr)) { - kvmppc_xive_cpu_get_state(tctx, &local_err); - if (local_err) { + ret = kvmppc_xive_cpu_get_state(tctx, &local_err); + if (ret < 0) { error_report_err(local_err); - return -1; + return ret; } } @@ -711,16 +712,17 @@ static int vmstate_xive_tctx_post_load(void *opaque, int version_id) { XiveTCTX *tctx = XIVE_TCTX(opaque); Error *local_err = NULL; + int ret; if (xive_in_kernel(tctx->xptr)) { /* * Required for hotplugged CPU, for which the state comes * after all states of the machine. */ - kvmppc_xive_cpu_set_state(tctx, &local_err); - if (local_err) { + ret = kvmppc_xive_cpu_set_state(tctx, &local_err); + if (ret < 0) { error_report_err(local_err); - return -1; + return ret; } }