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([2001:b07:6468:f312:9af8:e5f5:7516:fa89]) by smtp.googlemail.com with ESMTPSA id l7-20020a1c7907000000b003fef60005b5sm7838322wme.9.2023.09.26.08.37.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 26 Sep 2023 08:37:02 -0700 (PDT) Message-ID: <09ed554b-ceff-4ab5-68b4-f0aa0234b4b7@redhat.com> Date: Tue, 26 Sep 2023 17:37:01 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH 3/4] target/i386: enumerate VMX nested-exception support To: Xin Li , qemu-devel@nongnu.org Cc: kvm@vger.kernel.org, seanjc@google.com, chao.gao@intel.com, hpa@zytor.com, xiaoyao.li@intel.com, weijiang.yang@intel.com References: <20230901053022.18672-1-xin3.li@intel.com> <20230901053022.18672-4-xin3.li@intel.com> Content-Language: en-US From: Paolo Bonzini In-Reply-To: <20230901053022.18672-4-xin3.li@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.473, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 9/1/23 07:30, Xin Li wrote: > Allow VMX nested-exception support to be exposed in KVM guests, thus > nested KVM guests can enumerate it. > > Tested-by: Shan Kang > Signed-off-by: Xin Li > --- > target/i386/cpu.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/target/i386/cpu.c b/target/i386/cpu.c > index 3dba6b46d9..ba579e1fb7 100644 > --- a/target/i386/cpu.c > +++ b/target/i386/cpu.c > @@ -1340,6 +1340,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { > .feat_names = { > [54] = "vmx-ins-outs", > [55] = "vmx-true-ctls", > + [58] = "vmx-nested-exception", > }, > .msr = { > .index = MSR_IA32_VMX_BASIC, Please also add it to scripts/kvm/vmxcap, and rebase on top of the recent introduction of MSR_VMX_BASIC_ANY_ERRCODE. Paolo