From patchwork Thu May 28 12:36:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 281766 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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 B0B60C433E0 for ; Thu, 28 May 2020 12:40:25 +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 768A1206F1 for ; Thu, 28 May 2020 12:40:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="jQ/fec9Q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 768A1206F1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:48546 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jeHpg-0001NX-Jk for qemu-devel@archiver.kernel.org; Thu, 28 May 2020 08:40:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33588) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jeHls-0001ZA-FG for qemu-devel@nongnu.org; Thu, 28 May 2020 08:36:28 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:34731 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1jeHlp-00059h-E3 for qemu-devel@nongnu.org; Thu, 28 May 2020 08:36:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1590669383; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YFanjQRCf3qFEQWnXhLdapqjyquW4MPJ3aMF997XDHM=; b=jQ/fec9Ql9JbZ9cIT/hQgWHeQ4ZvvVNM0IW3MDXf9qHQuewoG2EECAYvrUt+RHmAltlyeV PAxlvTehe3/+/b5CtNhrxbsMiIWT1M3sE1ljNtWHsz7oPtJNhTwXSu60CBsXyXiDUPCNy2 IfvhcDS6Zqgv8VmO5mPu4TLrPXW9Sgo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-272-p15FU9h1MTOT3ByajxYeWQ-1; Thu, 28 May 2020 08:36:21 -0400 X-MC-Unique: p15FU9h1MTOT3ByajxYeWQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A457E8018A4; Thu, 28 May 2020 12:36:19 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-113-50.ams2.redhat.com [10.36.113.50]) by smtp.corp.redhat.com (Postfix) with ESMTP id D36607E467; Thu, 28 May 2020 12:36:18 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id E36269D63; Thu, 28 May 2020 14:36:09 +0200 (CEST) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 15/21] sm501: Convert printf + abort to qemu_log_mask Date: Thu, 28 May 2020 14:36:03 +0200 Message-Id: <20200528123609.27362-16-kraxel@redhat.com> In-Reply-To: <20200528123609.27362-1-kraxel@redhat.com> References: <20200528123609.27362-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=205.139.110.120; envelope-from=kraxel@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/28 01:51:20 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Peter Maydell , Igor Mitsyanko , Alistair Francis , Mark Cave-Ayland , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Gerd Hoffmann , "Edgar E. Iglesias" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: BALATON Zoltan Some places already use qemu_log_mask() to log unimplemented features or errors but some others have printf() then abort(). Convert these to qemu_log_mask() and avoid aborting to prevent guests to easily cause denial of service. Signed-off-by: BALATON Zoltan Reviewed-by: Philippe Mathieu-Daudé Message-id: 305af87f59d81e92f2aaff09eb8a3603b8baa322.1590089984.git.balaton@eik.bme.hu Signed-off-by: Gerd Hoffmann --- hw/display/sm501.c | 57 ++++++++++++++++++++++------------------------ 1 file changed, 27 insertions(+), 30 deletions(-) diff --git a/hw/display/sm501.c b/hw/display/sm501.c index acc692531ac7..bd3ccfe311c8 100644 --- a/hw/display/sm501.c +++ b/hw/display/sm501.c @@ -727,8 +727,8 @@ static void sm501_2d_operation(SM501State *s) int fb_len = get_width(s, crt) * get_height(s, crt) * get_bpp(s, crt); if (addressing != 0x0) { - printf("%s: only XY addressing is supported.\n", __func__); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: only XY addressing is supported.\n"); + return; } if (rop_mode == 0) { @@ -754,8 +754,8 @@ static void sm501_2d_operation(SM501State *s) if ((s->twoD_source_base & 0x08000000) || (s->twoD_destination_base & 0x08000000)) { - printf("%s: only local memory is supported.\n", __func__); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: only local memory is supported.\n"); + return; } switch (operation) { @@ -823,9 +823,9 @@ static void sm501_2d_operation(SM501State *s) break; default: - printf("non-implemented SM501 2D operation. %d\n", operation); - abort(); - break; + qemu_log_mask(LOG_UNIMP, "sm501: not implemented 2D operation: %d\n", + operation); + return; } if (dst_base >= get_fb_addr(s, crt) && @@ -892,9 +892,8 @@ static uint64_t sm501_system_config_read(void *opaque, hwaddr addr, break; default: - printf("sm501 system config : not implemented register read." - " addr=%x\n", (int)addr); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented system config" + "register read. addr=%" HWADDR_PRIx "\n", addr); } return ret; @@ -948,15 +947,15 @@ static void sm501_system_config_write(void *opaque, hwaddr addr, break; case SM501_ENDIAN_CONTROL: if (value & 0x00000001) { - printf("sm501 system config : big endian mode not implemented.\n"); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: system config big endian mode not" + " implemented.\n"); } break; default: - printf("sm501 system config : not implemented register write." - " addr=%x, val=%x\n", (int)addr, (uint32_t)value); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented system config" + "register write. addr=%" HWADDR_PRIx + ", val=%" PRIx64 "\n", addr, value); } } @@ -1207,9 +1206,8 @@ static uint64_t sm501_disp_ctrl_read(void *opaque, hwaddr addr, break; default: - printf("sm501 disp ctrl : not implemented register read." - " addr=%x\n", (int)addr); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented disp ctrl register " + "read. addr=%" HWADDR_PRIx "\n", addr); } return ret; @@ -1345,9 +1343,9 @@ static void sm501_disp_ctrl_write(void *opaque, hwaddr addr, break; default: - printf("sm501 disp ctrl : not implemented register write." - " addr=%x, val=%x\n", (int)addr, (unsigned)value); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented disp ctrl register " + "write. addr=%" HWADDR_PRIx + ", val=%" PRIx64 "\n", addr, value); } } @@ -1433,9 +1431,8 @@ static uint64_t sm501_2d_engine_read(void *opaque, hwaddr addr, ret = 0; /* Should return interrupt status */ break; default: - printf("sm501 disp ctrl : not implemented register read." - " addr=%x\n", (int)addr); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented disp ctrl register " + "read. addr=%" HWADDR_PRIx "\n", addr); } return ret; @@ -1520,9 +1517,9 @@ static void sm501_2d_engine_write(void *opaque, hwaddr addr, /* ignored, writing 0 should clear interrupt status */ break; default: - printf("sm501 2d engine : not implemented register write." - " addr=%x, val=%x\n", (int)addr, (unsigned)value); - abort(); + qemu_log_mask(LOG_UNIMP, "sm501: not implemented 2d engine register " + "write. addr=%" HWADDR_PRIx + ", val=%" PRIx64 "\n", addr, value); } } @@ -1670,9 +1667,9 @@ static void sm501_update_display(void *opaque) draw_line = draw_line32_funcs[dst_depth_index]; break; default: - printf("sm501 update display : invalid control register value.\n"); - abort(); - break; + qemu_log_mask(LOG_GUEST_ERROR, "sm501: update display" + "invalid control register value.\n"); + return; } /* set up to draw hardware cursor */