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=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 4DB80C48BCD for ; Wed, 9 Jun 2021 23:43:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 312A6613F2 for ; Wed, 9 Jun 2021 23:43:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230190AbhFIXpR (ORCPT ); Wed, 9 Jun 2021 19:45:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230120AbhFIXpJ (ORCPT ); Wed, 9 Jun 2021 19:45:09 -0400 Received: from mail-qt1-x84a.google.com (mail-qt1-x84a.google.com [IPv6:2607:f8b0:4864:20::84a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A878CC0617AE for ; Wed, 9 Jun 2021 16:42:54 -0700 (PDT) Received: by mail-qt1-x84a.google.com with SMTP id r17-20020ac842510000b02902456ec03025so8442567qtm.3 for ; Wed, 09 Jun 2021 16:42:54 -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=TSyhgxkAM87zPQDaBTB/xYIGoMe0SaHqhMUIzhv8SIc=; b=uAMj2WkqpBB4NV2SMlBv+LrSjvGsZgAFPCUKGdnlt4go5X6wG+GmFSR0KLzuX/PVbZ OAKh5QDgt5Q1OGS7e2dDtyN08kHG5SeRB4uBeduWhaq+63jDEA3KvST5qi77s/+BZUC1 Aeowf1/E6dAnI1Gg9ibHAijPlDTQHgxpPsl9duyrM2ymFI8Xzt2caAriDboHDXm6ma3y e22v2GJ6swXY+gSKwr58QSKwO4FzW99NFvVYwz+Jt4CH00t+zeJy36tN6gq6enzNhYmI W5P6+ACmEzBZJIvnIAKvNdrfKeO2L09H6zUMSPlnLbELvLFKWoc3hiPzJjUeGyIlXLbL soiw== 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=TSyhgxkAM87zPQDaBTB/xYIGoMe0SaHqhMUIzhv8SIc=; b=YIQ1P6+FDEIVE7TsyVngc1+CuXs5ZyBBjWZ48Oj7/wUGsSkjelECrsZfrMM7DRZzl3 95TkFIO7rx7kLd9mBU+MZMEHaLYjIImo/us1ibbkYj/XI0e0a9lgzeGpg+1ut3lyCpzl CrwePtu98cf32bjqhnClRcAKS+IldXWnwMTeNcUEHqorBlnVcjBmhKrn/9+ac2T+b+BN JhjVhz+br7zeNoxUhESDCnogpsM3Amv9rPJ3kn31NG23x2gCd2DCaQXqL/S1T8zxi6tM aembaYYlsIWS1Rasuf/bWZ1q6CXKKl5HU3RLftAjWmv99yprhNJMHhpe7QoFGi1enHSg B59w== X-Gm-Message-State: AOAM530fnovCJx68FjVm6MB8/GWDF5U4z/qlOKhEsEvc0kVm/xhM1TU8 +2RncqYITUBT+o0mjZSbn1O4F7FA6sU= X-Google-Smtp-Source: ABdhPJxt9s6tpqX+2vXnuajtY+tmND2r+hdonH3bjIK3Ank/XmwdAQ1TFT/vKoKqFPLk2R1fpLNcv5HUggQ= X-Received: from seanjc798194.pdx.corp.google.com ([2620:15c:f:10:8daf:e5e:ae50:4f28]) (user=seanjc job=sendgmr) by 2002:ad4:4dcb:: with SMTP id cw11mr2243546qvb.54.1623282173808; Wed, 09 Jun 2021 16:42:53 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 9 Jun 2021 16:42:25 -0700 In-Reply-To: <20210609234235.1244004-1-seanjc@google.com> Message-Id: <20210609234235.1244004-6-seanjc@google.com> Mime-Version: 1.0 References: <20210609234235.1244004-1-seanjc@google.com> X-Mailer: git-send-email 2.32.0.rc1.229.g3e70b5a671-goog Subject: [PATCH 05/15] KVM: x86: Uncondtionally skip MMU sync/TLB flush in MOV CR3's PGD switch 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, Junaid Shahid , Maxim Levitsky , Lai Jiangshan Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Stop leveraging the MMU sync and TLB flush requested by the fast PGD switch helper now that kvm_set_cr3() manually handles the necessary sync, frees, and TLB flush. This will allow dropping the params from the fast PGD helpers since nested SVM is now the odd blob out. Signed-off-by: Sean Christopherson --- arch/x86/kvm/x86.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index e2f6d6a1ba54..02ceb1f606f4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1136,7 +1136,7 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) return 1; if (cr3 != kvm_read_cr3(vcpu)) - kvm_mmu_new_pgd(vcpu, cr3, skip_tlb_flush, skip_tlb_flush); + kvm_mmu_new_pgd(vcpu, cr3, true, true); vcpu->arch.cr3 = cr3; kvm_register_mark_available(vcpu, VCPU_EXREG_CR3); -- 2.32.0.rc1.229.g3e70b5a671-goog