Message ID | 20200317045238.30434-3-sean.j.christopherson@intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=C8aH=5C=vger.kernel.org=kvm-owner@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F7571667 for <patchwork-kvm@patchwork.kernel.org>; Tue, 17 Mar 2020 04:55:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3086320736 for <patchwork-kvm@patchwork.kernel.org>; Tue, 17 Mar 2020 04:55:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726801AbgCQExL (ORCPT <rfc822;patchwork-kvm@patchwork.kernel.org>); Tue, 17 Mar 2020 00:53:11 -0400 Received: from mga04.intel.com ([192.55.52.120]:34097 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726760AbgCQExK (ORCPT <rfc822;kvm@vger.kernel.org>); Tue, 17 Mar 2020 00:53:10 -0400 IronPort-SDR: TCtRZB72X1IDjSPrhNXJZJkg/ux8pkpsb+crq7RVgSwksg4fhbp2uovycvXEPjvic+xOpS5iu5 eI5asXDuG9wQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2020 21:53:09 -0700 IronPort-SDR: mtrT54hH5lEWRi46NEIhK6lytmJiP5A47NNxRISpQL6ut1L9KH4JBB9ANk+aE+J8iChIb44THU bye3m1R2AacQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,563,1574150400"; d="scan'208";a="355252734" Received: from sjchrist-coffee.jf.intel.com ([10.54.74.202]) by fmsmga001.fm.intel.com with ESMTP; 16 Mar 2020 21:53:09 -0700 From: Sean Christopherson <sean.j.christopherson@intel.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: Sean Christopherson <sean.j.christopherson@intel.com>, Vitaly Kuznetsov <vkuznets@redhat.com>, Wanpeng Li <wanpengli@tencent.com>, Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Ben Gardon <bgardon@google.com>, Junaid Shahid <junaids@google.com>, Liran Alon <liran.alon@oracle.com>, Boris Ostrovsky <boris.ostrovsky@oracle.com>, John Haxby <john.haxby@oracle.com>, Miaohe Lin <linmiaohe@huawei.com>, Tom Lendacky <thomas.lendacky@amd.com> Subject: [PATCH v2 02/32] KVM: nVMX: Validate the EPTP when emulating INVEPT(EXTENT_CONTEXT) Date: Mon, 16 Mar 2020 21:52:08 -0700 Message-Id: <20200317045238.30434-3-sean.j.christopherson@intel.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200317045238.30434-1-sean.j.christopherson@intel.com> References: <20200317045238.30434-1-sean.j.christopherson@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: <kvm.vger.kernel.org> X-Mailing-List: kvm@vger.kernel.org |
Series |
KVM: x86: TLB flushing fixes and enhancements
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diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 8578513907d7..f3774cef4fd4 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -5156,8 +5156,12 @@ static int handle_invept(struct kvm_vcpu *vcpu) } switch (type) { - case VMX_EPT_EXTENT_GLOBAL: case VMX_EPT_EXTENT_CONTEXT: + if (!nested_vmx_check_eptp(vcpu, operand.eptp)) + return nested_vmx_failValid(vcpu, + VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID); + fallthrough; + case VMX_EPT_EXTENT_GLOBAL: /* * TODO: Sync the necessary shadow EPT roots here, rather than * at the next emulated VM-entry.
Signal VM-Fail for the single-context variant of INVEPT if the specified EPTP is invalid. Per the INEVPT pseudocode in Intel's SDM, it's subject to the standard EPT checks: If VM entry with the "enable EPT" VM execution control set to 1 would fail due to the EPTP value then VMfail(Invalid operand to INVEPT/INVVPID); Fixes: bfd0a56b90005 ("nEPT: Nested INVEPT") Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> --- arch/x86/kvm/vmx/nested.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)