From nobody Thu Sep 19 01:55:48 2024 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1824119DFA6 for ; Thu, 25 Jul 2024 17:52:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721929963; cv=none; b=Ke3VK49rRdHTnAOWUAqYpsNallt69/fnwto5JTzBq7LNaZjvmhE5SH6YRFLy84v85/SvQi8Q8C72GKqCwEGhwyrT/xbVFZ2BgEXzgcyneVuo77iolXNByOpMfrBPZVCpWcb9nlSuefc5PQJFfefFtp2HUP7YAUJfbSXYeTCQGHY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721929963; c=relaxed/simple; bh=bF/RmDC1muiFR8b68LnasEDMNOGIh57mHfNhH/TZ9IA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TvqS8Esnx5QTXF3PaqTaqZrXpNLy7vN4xynk+2KpJleVrqqtiH+cGYROzv/ahHy6p+Gg4oxMQpU4j7COa5R4ph3fgu4Z+yIfZXqaKsS5fOsmv2RoN5HttUMps3dv45yV4kSKRKowcPcoQXVt0nXM3xQvN+DWTimsMQqmEJr0A/U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=EUgLYSbA; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="EUgLYSbA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1721929960; 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=G0JDlgx4JpEKNjMRaudEG0UhuNLw5CjvqTILvNGGv58=; b=EUgLYSbAtONrXeA3WLVZPEj1NygcmMYFqt+d3th2dlBGm9ZcxBl7ukQ/yxaJy202A2RMN1 ooz29BRDN7lwBmhylQlkPi1C05VCKaQiaZB8GlC+vTeduiEa/0j9Sr4qIXtIFM3FplVbmP 0jgbewkifeGQ54Ap3jfbgxsdgy13fWg= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-632-Wz2a5VeHOWeFiTS8-v5N9A-1; Thu, 25 Jul 2024 13:52:39 -0400 X-MC-Unique: Wz2a5VeHOWeFiTS8-v5N9A-1 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 014D61944B2E; Thu, 25 Jul 2024 17:52:38 +0000 (UTC) Received: from starship.lan (unknown [10.22.8.132]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 927383000194; Thu, 25 Jul 2024 17:52:35 +0000 (UTC) From: Maxim Levitsky To: kvm@vger.kernel.org Cc: Sean Christopherson , Dave Hansen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , linux-kernel@vger.kernel.org, Paolo Bonzini , x86@kernel.org, Maxim Levitsky Subject: [PATCH v3 1/2] KVM: nVMX: use vmx_segment_cache_clear Date: Thu, 25 Jul 2024 13:52:31 -0400 Message-Id: <20240725175232.337266-2-mlevitsk@redhat.com> In-Reply-To: <20240725175232.337266-1-mlevitsk@redhat.com> References: <20240725175232.337266-1-mlevitsk@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Content-Type: text/plain; charset="utf-8" in prepare_vmcs02_rare, call vmx_segment_cache_clear instead of setting segment_cache.bitmask directly. No functional change intended. Signed-off-by: Maxim Levitsky --- arch/x86/kvm/vmx/nested.c | 3 ++- arch/x86/kvm/vmx/vmx.c | 4 ---- arch/x86/kvm/vmx/vmx.h | 5 +++++ 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 643935a0f70a..b0e5d80da941 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -2469,6 +2469,7 @@ static void prepare_vmcs02_rare(struct vcpu_vmx *vmx,= struct vmcs12 *vmcs12) =20 if (!hv_evmcs || !(hv_evmcs->hv_clean_fields & HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2)) { + vmcs_write16(GUEST_ES_SELECTOR, vmcs12->guest_es_selector); vmcs_write16(GUEST_CS_SELECTOR, vmcs12->guest_cs_selector); vmcs_write16(GUEST_SS_SELECTOR, vmcs12->guest_ss_selector); @@ -2506,7 +2507,7 @@ static void prepare_vmcs02_rare(struct vcpu_vmx *vmx,= struct vmcs12 *vmcs12) vmcs_writel(GUEST_GDTR_BASE, vmcs12->guest_gdtr_base); vmcs_writel(GUEST_IDTR_BASE, vmcs12->guest_idtr_base); =20 - vmx->segment_cache.bitmask =3D 0; + vmx_segment_cache_clear(vmx); } =20 if (!hv_evmcs || !(hv_evmcs->hv_clean_fields & diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index b3c83c06f826..fa9f307d9b18 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -524,10 +524,6 @@ static const struct kvm_vmx_segment_field { VMX_SEGMENT_FIELD(LDTR), }; =20 -static inline void vmx_segment_cache_clear(struct vcpu_vmx *vmx) -{ - vmx->segment_cache.bitmask =3D 0; -} =20 static unsigned long host_idt_base; =20 diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index 7b64e271a931..1689f0d59f43 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -755,4 +755,9 @@ static inline bool vmx_can_use_ipiv(struct kvm_vcpu *vc= pu) return lapic_in_kernel(vcpu) && enable_ipiv; } =20 +static inline void vmx_segment_cache_clear(struct vcpu_vmx *vmx) +{ + vmx->segment_cache.bitmask =3D 0; +} + #endif /* __KVM_X86_VMX_H */ --=20 2.26.3