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=-16.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D87EBC43460 for ; Mon, 26 Apr 2021 11:14:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A551861289 for ; Mon, 26 Apr 2021 11:14:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233170AbhDZLPU (ORCPT ); Mon, 26 Apr 2021 07:15:20 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:49216 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233234AbhDZLPG (ORCPT ); Mon, 26 Apr 2021 07:15:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1619435664; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=HjxS0PwgHyzJEmi0AU6IitMB7uQo4Hn4kBAi0PEBp3c=; b=Vg7zeN/fS5mRQnBVyAWa224oVp41m0dhUq2wiIEMH3wAcGVSqdHfMiYRas9coOyXVpRqnu OOB4LX7bHH6NSGMcywTfn9lF9UfW5WsgCoQ7CZmKoltoAm4UbuGQflRRycXpbs7C5Y/39r qbLGtXUjjJP52lExI2NjRwyqSpoYSig= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-345-GhIMCWXqO2CAGB_7hANqHQ-1; Mon, 26 Apr 2021 07:14:23 -0400 X-MC-Unique: GhIMCWXqO2CAGB_7hANqHQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 476B38A2C4A; Mon, 26 Apr 2021 11:13:56 +0000 (UTC) Received: from localhost.localdomain (unknown [10.40.192.73]) by smtp.corp.redhat.com (Postfix) with ESMTP id 836AE5D9D0; Mon, 26 Apr 2021 11:13:51 +0000 (UTC) From: Maxim Levitsky To: kvm@vger.kernel.org Cc: linux-doc@vger.kernel.org (open list:DOCUMENTATION), Thomas Gleixner , Jonathan Corbet , Paolo Bonzini , x86@kernel.org (maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)), linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT AND 64-BIT)), "H. Peter Anvin" , Ingo Molnar , Borislav Petkov , Wanpeng Li , Vitaly Kuznetsov , Jim Mattson , Sean Christopherson , Joerg Roedel , Maxim Levitsky Subject: [PATCH v2 3/6] KVM: x86: introduce kvm_register_clear_available Date: Mon, 26 Apr 2021 14:13:30 +0300 Message-Id: <20210426111333.967729-4-mlevitsk@redhat.com> In-Reply-To: <20210426111333.967729-1-mlevitsk@redhat.com> References: <20210426111333.967729-1-mlevitsk@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Small refactoring that will be used in the next patch. Signed-off-by: Maxim Levitsky --- arch/x86/kvm/kvm_cache_regs.h | 7 +++++++ arch/x86/kvm/svm/svm.c | 6 ++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h index 3db5c42c9ecd..b8559b83c4ca 100644 --- a/arch/x86/kvm/kvm_cache_regs.h +++ b/arch/x86/kvm/kvm_cache_regs.h @@ -55,6 +55,13 @@ static inline void kvm_register_mark_available(struct kvm_vcpu *vcpu, __set_bit(reg, (unsigned long *)&vcpu->arch.regs_avail); } +static inline void kvm_register_clear_available(struct kvm_vcpu *vcpu, + enum kvm_reg reg) +{ + __clear_bit(reg, (unsigned long *)&vcpu->arch.regs_avail); + __clear_bit(reg, (unsigned long *)&vcpu->arch.regs_dirty); +} + static inline void kvm_register_mark_dirty(struct kvm_vcpu *vcpu, enum kvm_reg reg) { diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 14ff7f0963e9..c596bf1a4ae8 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -3868,10 +3868,8 @@ static __no_kcsan fastpath_t svm_vcpu_run(struct kvm_vcpu *vcpu) vcpu->arch.apf.host_apf_flags = kvm_read_and_reset_apf_flags(); - if (npt_enabled) { - vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR); - vcpu->arch.regs_dirty &= ~(1 << VCPU_EXREG_PDPTR); - } + if (npt_enabled) + kvm_register_clear_available(vcpu, VCPU_EXREG_PDPTR); /* * We need to handle MC intercepts here before the vcpu has a chance to -- 2.26.2