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=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=unavailable 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 24113C07E96 for ; Tue, 13 Jul 2021 16:33:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1008C611C0 for ; Tue, 13 Jul 2021 16:33:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233634AbhGMQgq (ORCPT ); Tue, 13 Jul 2021 12:36:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233455AbhGMQgl (ORCPT ); Tue, 13 Jul 2021 12:36:41 -0400 Received: from mail-yb1-xb49.google.com (mail-yb1-xb49.google.com [IPv6:2607:f8b0:4864:20::b49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE1FDC0613A7 for ; Tue, 13 Jul 2021 09:33:50 -0700 (PDT) Received: by mail-yb1-xb49.google.com with SMTP id j186-20020a25d2c30000b029055ed6ffbea6so20160411ybg.14 for ; Tue, 13 Jul 2021 09:33:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=reply-to:date:in-reply-to:message-id:mime-version:references :subject:from:to:cc; bh=Yi6bDLPGCrbqS09Vb1Q1YxAsIO5UfWIqGpJKeQgB6SM=; b=IVnOLNaL2eWedum/MsETC2COPdFjr41LCUU0dWy0VQ24GHK+90gGUlHlDQeoU8HW1d mmZ1yZqe9nXwNxMCwWOpj3gCIcVAat5HY7uNR5tiFwITBNaq+DXV9yOhggr1MdNKUb/g QrqZ1ZNJHkRub0g1yBYxgv51Da5cgu4KZ4YESMWLgP8GrcT3ARqrjmmwA0JbSFfCbLFM 026R2zcJndSlaBgezEKyQObEjkqDmPNqUxBbPJAwDunR+PPzo8UceXVLjBwkpicIxDvF 1J5/mCRFFkGEHBcITYmPmDxZEtL2Ov1hnEOlpQd5OBFvhuVAP7y35LmQTsxHT74r0uUB +61w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:reply-to:date:in-reply-to:message-id :mime-version:references:subject:from:to:cc; bh=Yi6bDLPGCrbqS09Vb1Q1YxAsIO5UfWIqGpJKeQgB6SM=; b=ZZBtPQAFKp9Xl60bZnEoz7crc7xGY1RnTxUJKiz4dTF/xPyG04l9UoRBSEUAo2Xbns dHkMT+DViJZeF7dfvGvxazSW8Ge0ZYa2fTzSigbZxSvMo4gjvIIUAUUbGCWYI8KYer0Y xnxA3exVL2RyhcWWHPKEMr3BTgqTSBROthjtg1dS6LBQVYWdODrHQgBUeSdlekJZzHP4 1z62lCzqFRrBPtlb3JbfXtpKpqxmXCMduaa7sRLBobAzuEMqOuiOxRajcODGEioQqMPH ueymWpahFCE4S6uHFnSK5PlU79r0vHvwmkJ7EVNuBiBnJMN6BOsMBt14iyGCVJxBJcGB Wzew== X-Gm-Message-State: AOAM530qNwwf6x1DoGCg5dTopXCP4coiVsKBKdrlPL2UTYmz1k1XazpA chvbRm3e3BUQpoHoyBkJ1QefVuwvreE= X-Google-Smtp-Source: ABdhPJwBGiKmMkpMUzwxlAmBPHwwMkjSyv361z6WDe1EupMy+LnGBNRjp8Wby34ZiMJVsA4w5V0A1rK4PJs= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:90:200:825e:11a1:364b:8109]) (user=seanjc job=sendgmr) by 2002:a25:550:: with SMTP id 77mr7152673ybf.452.1626194030009; Tue, 13 Jul 2021 09:33:50 -0700 (PDT) Reply-To: Sean Christopherson Date: Tue, 13 Jul 2021 09:32:46 -0700 In-Reply-To: <20210713163324.627647-1-seanjc@google.com> Message-Id: <20210713163324.627647-9-seanjc@google.com> Mime-Version: 1.0 References: <20210713163324.627647-1-seanjc@google.com> X-Mailer: git-send-email 2.32.0.93.g670b81a890-goog Subject: [PATCH v2 08/46] KVM: SVM: Drop explicit MMU reset at RESET/INIT From: Sean Christopherson To: Paolo Bonzini Cc: Sean Christopherson , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Joerg Roedel , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Reiji Watanabe Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Drop an explicit MMU reset in SVM's vCPU RESET/INIT flow now that the common x86 path correctly handles conditional MMU resets, e.g. if INIT arrives while the vCPU is in 64-bit mode. This reverts commit ebae871a509d ("kvm: svm: reset mmu on VCPU reset"). Reviewed-by: Reiji Watanabe Signed-off-by: Sean Christopherson --- arch/x86/kvm/svm/svm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 7da214660c64..44248548be7d 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1274,7 +1274,6 @@ static void init_vmcb(struct kvm_vcpu *vcpu) * It also updates the guest-visible cr0 value. */ svm_set_cr0(vcpu, X86_CR0_NW | X86_CR0_CD | X86_CR0_ET); - kvm_mmu_reset_context(vcpu); save->cr4 = X86_CR4_PAE; -- 2.32.0.93.g670b81a890-goog