From mboxrd@z Thu Jan 1 00:00:00 1970 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 A5209C43460 for ; Thu, 1 Apr 2021 12:57:19 +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 4BFD7611CB for ; Thu, 1 Apr 2021 12:57:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BFD7611CB 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]:57914 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRwsw-0003bk-GB for qemu-devel@archiver.kernel.org; Thu, 01 Apr 2021 08:57:18 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57126) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRwrY-0001hN-9e for qemu-devel@nongnu.org; Thu, 01 Apr 2021 08:55:52 -0400 Received: from mail-oi1-x232.google.com ([2607:f8b0:4864:20::232]:38673) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lRwrW-0002yI-9a for qemu-devel@nongnu.org; Thu, 01 Apr 2021 08:55:51 -0400 Received: by mail-oi1-x232.google.com with SMTP id v25so1670603oic.5 for ; Thu, 01 Apr 2021 05:55:49 -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=3J/atxW6sPYnXqaJSp9SobS3v6A+MNQfu9eol6wNQ30=; b=KLY2oOlZTJhTWb3UIrY7e18uqGaEK2xvaLysjy7MJtXDUs070MMjii5B4pBurCYFB9 qySEVXiBaIzM0zCr1wF5LRLFklKjryKdF4V+Ug1skqIkv8ikHCHm+kZ5tpmWtdi5UGu2 /97WcZu7SwcIDTJ9VvhwmCa4kSEfeYP9+39Ih4ic7s689TE6ePHfbRFrhhF6w6lgZUkI ZLw+KHl7q9hCrNC0agH+YU+Yts7W4j2ihJVWC4h/P2XxEFxRwJdARNVx+zRc61IRYOMr 5pYDPuQG8slq6+QpGrJpgfKnqoe9JhyDu/ob63LNibEFpMHwzlMII2tepurVV8KyYQge lNcA== 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=3J/atxW6sPYnXqaJSp9SobS3v6A+MNQfu9eol6wNQ30=; b=nGCtI3msWmXxwvdY8+8rzQYRV/wqyuhKiZwNJQo9l73SZImH8u4zJyriTI9jmq3bQG hUAyEFEqt3pmmzsa7WyP8/C6zHFfX92ad9wBb+15ngypOFeC+Ogs7gWB7eQ5/4YjrZ2H P+nF9asVpsgmt2lvO11g4vsL/AyNo7n2KND76nHaBNVWyjUvd0Ml3G4L0FgRny2Ff6OE HDGaGYmrJc8dBHrHPg2olfjgieiek6nyGidbjI+oCmbf+P3KzW5gAg7h9FQbLLJRFv3z 9dtT64d+gzLLisPGy1Q8PLG7NpH7GWoN7gdtTmSKKl1CWtmXPyaFSRqE4ddMAdkYR/nf E5MQ== X-Gm-Message-State: AOAM532IRfY/zMEB2By2l8oeWSXinszyUTC9QZhXmHd6Mf3Gp6ufGxM9 qyN3gQlFy8bZldUwyEd7cqEGF5KI6SibTyg= X-Google-Smtp-Source: ABdhPJyzuCI+gtU+a8SwPXa6zfIX3j+QFNSdGzYLeTURExLel2W4Zy/HnPcWvTa9wo31FcGnxAkNhA== X-Received: by 2002:aca:d514:: with SMTP id m20mr5850356oig.47.1617281749029; Thu, 01 Apr 2021 05:55:49 -0700 (PDT) Received: from localhost.localdomain ([147.75.106.138]) by smtp.gmail.com with ESMTPSA id w11sm1082245ooc.35.2021.04.01.05.55.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Apr 2021 05:55:48 -0700 (PDT) From: Haibo Xu To: qemu-devel@nongnu.org, qemu-arm@nongnu.org Subject: [PATCH RESEND v2 2/6] target/arm/kvm: Add helper to detect el2 when using KVM Date: Thu, 1 Apr 2021 12:55:34 +0000 Message-Id: <65b8771bfecada08bf02c9cf87c2f0f9cdf943b3.1617281290.git.haibo.xu@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::232; envelope-from=haibo.xu@linaro.org; helo=mail-oi1-x232.google.com 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, drjones@redhat.com, richard.henderson@linaro.org, abologna@redhat.com, Haibo Xu , philmd@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Haibo Xu --- target/arm/kvm64.c | 5 +++++ target/arm/kvm_arm.h | 13 +++++++++++++ 2 files changed, 18 insertions(+) diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c index dff85f6db9..9cacaf2eb8 100644 --- a/target/arm/kvm64.c +++ b/target/arm/kvm64.c @@ -721,6 +721,11 @@ bool kvm_arm_steal_time_supported(void) return kvm_check_extension(kvm_state, KVM_CAP_STEAL_TIME); } +bool kvm_arm_el2_supported(void) +{ + return kvm_check_extension(kvm_state, KVM_CAP_ARM_EL2); +} + QEMU_BUILD_BUG_ON(KVM_ARM64_SVE_VQ_MIN != 1); void kvm_arm_sve_get_vls(CPUState *cs, unsigned long *map) diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h index 34f8daa377..7d7fc7981b 100644 --- a/target/arm/kvm_arm.h +++ b/target/arm/kvm_arm.h @@ -285,6 +285,14 @@ void kvm_arm_steal_time_finalize(ARMCPU *cpu, Error **errp); */ bool kvm_arm_steal_time_supported(void); +/** + * kvm_arm_el2_supported: + * + * Returns: true if KVM can enable el2(nested virtualization) + * and false otherwise. + */ +bool kvm_arm_el2_supported(void); + /** * kvm_arm_aarch32_supported: * @@ -398,6 +406,11 @@ static inline bool kvm_arm_steal_time_supported(void) return false; } +static inline bool kvm_arm_el2_supported(void) +{ + return false; +} + /* * These functions should never actually be called without KVM support. */ -- 2.17.1