From nobody Mon Feb 9 01:29:42 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4CE70C7EE25 for ; Wed, 7 Jun 2023 20:36:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233840AbjFGUgA (ORCPT ); Wed, 7 Jun 2023 16:36:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234064AbjFGUfn (ORCPT ); Wed, 7 Jun 2023 16:35:43 -0400 Received: from mail-pg1-x549.google.com (mail-pg1-x549.google.com [IPv6:2607:f8b0:4864:20::549]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41393269E for ; Wed, 7 Jun 2023 13:35:28 -0700 (PDT) Received: by mail-pg1-x549.google.com with SMTP id 41be03b00d2f7-5428d1915acso645596a12.0 for ; Wed, 07 Jun 2023 13:35:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20221208; t=1686170128; x=1688762128; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=jgGL3J+y4YYi/bcB6j3OZN64JX2gA8WjmgGOG10ljEs=; b=FtBRDqEhDT9q55n0xQR6Rf5ieQVZhE5Cnn1NvZJ/TW8wF2Xyb/C4lAicVY8vUnhIZD zPBOufIPplRK+DIZYdrQOiMeEqGn4V6di7knmWJpsclovsxrV3RFThS1t7e4tDAQp1y6 HGEVhQ+nPGLIquEqvsomGP/LYHdgnPMONWxL3P8HWN/96ixdKk6p3lNk3mdc35g+rOC9 fubFNxCLRgEoBBguaAQiaKRSmcWPm3jJvKDLz7sCO+kiX64y6H4TYjtGVqqBDhED3Wrn jBcTblIf5gIIukhkejMk2chPPJBVy/svUYv+fo6l8m0qpRfVkPx3+LO44CpRDKsFyzqW e9CA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686170128; x=1688762128; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=jgGL3J+y4YYi/bcB6j3OZN64JX2gA8WjmgGOG10ljEs=; b=PJanm6DhGPgF/pIM9bogpsw+12P2ARo+3EmDhhE/K++bd98zLw+Cop4R01qfugAwGQ ruvr9vbrMDW8boImx7DW4ruHLwO6Cgqb73qxywqG+r6clLtbFNRQI9YX0/71xzaN4m2M UAYSJIq8wrpBixocGAta6F5gfhozqqZJ9iWiNRuSNmN4i4mPAkL1/ezgv4wqmVSzi4Gl 3wCKbB4z7UTH+LMbwMaWECcrQrMLLpqUuWqlEvmknin8ZBmqsTUS1fXresDJlXZKeDUR nieT6ARd2G5uUv3CF67i820zGPpu0DKV1tgeKPtZl+Eca+a3BWFs0yEqRAVdZrDaaDx4 wFZA== X-Gm-Message-State: AC+VfDzr/aGroruayV+oUShFKo7+pk2WP8PPFm4zJu9ig1/uuVUzEnMT /qN6p+pIJ9Ulwy2Vuy0ffUokoLKnVwk= X-Google-Smtp-Source: ACHHUZ5M9Mnni96gdicl/P/GXr4xEvyfmHJT1HLOEDpoaRo1Anwb1LGOQI0fXiOkt2NBM9HRSDswbjgkXOw= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:5c37]) (user=seanjc job=sendgmr) by 2002:a65:6c0e:0:b0:53f:9a37:c199 with SMTP id y14-20020a656c0e000000b0053f9a37c199mr33964pgu.1.1686170127719; Wed, 07 Jun 2023 13:35:27 -0700 (PDT) Reply-To: Sean Christopherson Date: Wed, 7 Jun 2023 13:35:19 -0700 In-Reply-To: <20230607203519.1570167-1-seanjc@google.com> Mime-Version: 1.0 References: <20230607203519.1570167-1-seanjc@google.com> X-Mailer: git-send-email 2.41.0.162.gfafddb0af9-goog Message-ID: <20230607203519.1570167-4-seanjc@google.com> Subject: [PATCH 3/3] KVM: SVM: Use svm_get_lbr_vmcb() helper to handle writes to DEBUGCTL From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Michal Luczaj , Yuan Yao Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use the recently introduced svm_get_lbr_vmcb() instead an open coded equivalent to retrieve the target VMCB when emulating writes to MSR_IA32_DEBUGCTLMSR. No functional change intended. Signed-off-by: Sean Christopherson --- arch/x86/kvm/svm/svm.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index db97eca6c1ae..b700de261ce8 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3012,13 +3012,8 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, struct= msr_data *msr) if (data & DEBUGCTL_RESERVED_BITS) return 1; =20 - if (svm->vmcb->control.virt_ext & LBR_CTL_ENABLE_MASK) - svm->vmcb->save.dbgctl =3D data; - else - svm->vmcb01.ptr->save.dbgctl =3D data; - + svm_get_lbr_vmcb(svm)->save.dbgctl =3D data; svm_update_lbrv(vcpu); - break; case MSR_VM_HSAVE_PA: /* --=20 2.41.0.162.gfafddb0af9-goog