From patchwork Tue Sep 15 03:11:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haibo Xu X-Patchwork-Id: 273758 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 BDA6EC43461 for ; Tue, 15 Sep 2020 03:15:37 +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 40C3E20672 for ; Tue, 15 Sep 2020 03:15:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="wridOrpG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 40C3E20672 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:57026 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kI1RQ-0005Jr-CD for qemu-devel@archiver.kernel.org; Mon, 14 Sep 2020 23:15:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47990) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kI1O7-0000Eg-8C for qemu-devel@nongnu.org; Mon, 14 Sep 2020 23:12:11 -0400 Received: from mail-pg1-x543.google.com ([2607:f8b0:4864:20::543]:46591) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kI1O3-0001fm-Lk for qemu-devel@nongnu.org; Mon, 14 Sep 2020 23:12:10 -0400 Received: by mail-pg1-x543.google.com with SMTP id 34so1186500pgo.13 for ; Mon, 14 Sep 2020 20:12:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fLJn3KGoDv4U0zm6QvQGS4S6fFA4pWWn06jbXE+Tvuk=; b=wridOrpG5CScKhmqwIxVFGd3J5VE6XNpo8HYGuvrk0FXgI0Z7wJXOCIUwexMCAfh5h xM8RAk+ObbXIZDY/MjfGaqPksQE7S8w+62/6DXBcygOlnKp79q8bPn7EgY6eV27Y4cwU 2xfIJWFymvYSzuw8eHQBbdFp/JCKrnz4a3Km9BSsfeInn1Q7vAayZW+yS8ewMg3vL/1q JHq5f4AO9mXeOcWrLPO4koLC0hUexM96RpTs6GEkAXGsJeudV6u2I9G3DBq+a53w8N0p 1r07yf0FLknjnwajCNM6st1Z9Xhtf8XScHm8LsGIUWhwYthyyjTfMr4TkhvO9QefR4j3 +xKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fLJn3KGoDv4U0zm6QvQGS4S6fFA4pWWn06jbXE+Tvuk=; b=J+xANwrLQU992JYb+1LtT0yI4dsacqEoYLFqTleEiB+MSvqCjFlTcqdqMSQkZRRWYy FAEsXbncDzKnOsIBFAXLHWM57SqqIkQcj4hxBylsW650wnD4WGFwvlRDQmlC6/QihriR itjLwnsbHy7XYS26kB135i5YG72e7/08AZD3/xLzTaZmlxlAYOC96n2gA8t/wYrNgSEZ S0RePsENUY2BPC3rwRbHHp1FSOTwT8HP6X83jUbhzlCMx1bJQxfnpFsKgJWypjvyJ39S BufJ7lmA+46HvQ4dfGmueouDz8S6igLsG1ohoMoHshPXAuU3WNxsnk9l2Y0Rf5d/2TvG IxSg== X-Gm-Message-State: AOAM530vflebMQXeIGuZRTtW/uNnlFQGxxpOzFQlnyQ+XIIOAM7SmbRX 9LEJrYjb0f+DADG2d8dMhxVF X-Google-Smtp-Source: ABdhPJwBXdvl9yr7pM5TSrJ/l+3T4lJ7BDCsxgqvLYdzTHAYMIArMlDdj0taTZ1SAWWRUbn6ibLv7A== X-Received: by 2002:a62:17c5:: with SMTP id 188mr15658196pfx.148.1600139526235; Mon, 14 Sep 2020 20:12:06 -0700 (PDT) Received: from localhost.localdomain ([147.75.106.138]) by smtp.gmail.com with ESMTPSA id g23sm11551776pfh.133.2020.09.14.20.12.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2020 20:12:05 -0700 (PDT) From: Haibo Xu To: drjones@redhat.com, richard.henderson@linaro.org Subject: [PATCH v3 02/12] target/arm/kvm: spe: Add helper to detect SPE when using KVM Date: Tue, 15 Sep 2020 03:11:38 +0000 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::543; envelope-from=haibo.xu@linaro.org; helo=mail-pg1-x543.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: peter.maydell@linaro.org, qemu-arm@nongnu.org, philmd@redhat.com, qemu-devel@nongnu.org, Haibo Xu Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reviewed-by: Andrew Jones Reviewed-by: Richard Henderson Signed-off-by: Haibo Xu --- target/arm/kvm.c | 5 +++++ target/arm/kvm_arm.h | 13 +++++++++++++ 2 files changed, 18 insertions(+) diff --git a/target/arm/kvm.c b/target/arm/kvm.c index 8bb7318378..58f991e890 100644 --- a/target/arm/kvm.c +++ b/target/arm/kvm.c @@ -214,6 +214,11 @@ bool kvm_arm_pmu_supported(void) return kvm_check_extension(kvm_state, KVM_CAP_ARM_PMU_V3); } +bool kvm_arm_spe_supported(void) +{ + return kvm_check_extension(kvm_state, KVM_CAP_ARM_SPE_V1); +} + int kvm_arm_get_max_vm_ipa_size(MachineState *ms) { KVMState *s = KVM_STATE(ms->accelerator); diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h index adb38514bf..f79655674e 100644 --- a/target/arm/kvm_arm.h +++ b/target/arm/kvm_arm.h @@ -283,6 +283,14 @@ bool kvm_arm_aarch32_supported(void); */ bool kvm_arm_pmu_supported(void); +/** + * kvm_arm_spe_supported: + * + * Returns: true if the KVM VCPU can enable its SPE + * and false otherwise. + */ +bool kvm_arm_spe_supported(void); + /** * kvm_arm_sve_supported: * @@ -366,6 +374,11 @@ static inline bool kvm_arm_pmu_supported(void) return false; } +static inline bool kvm_arm_spe_supported(void) +{ + return false; +} + static inline bool kvm_arm_sve_supported(void) { return false;