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Sat, 08 Jun 2024 01:35:47 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGi4HX9CW9lgEN3VRMNy5oAO+gayjXYVj+DkwLdswdxvVACxw5udN+eIj3SSWHD4u0E935aZQ== X-Received: by 2002:a17:906:1759:b0:a68:875e:e36f with SMTP id a640c23a62f3a-a6cd5613731mr302742166b.16.1717835747314; Sat, 08 Jun 2024 01:35:47 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Xin Li , Shan Kang Subject: [PULL 35/42] target/i386: enumerate VMX nested-exception support Date: Sat, 8 Jun 2024 10:34:08 +0200 Message-ID: <20240608083415.2769160-36-pbonzini@redhat.com> X-Mailer: git-send-email 2.45.1 In-Reply-To: <20240608083415.2769160-1-pbonzini@redhat.com> References: <20240608083415.2769160-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; 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: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717835949082100001 Content-Type: text/plain; charset="utf-8" From: Xin Li 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 Message-ID: <20231109072012.8078-6-xin3.li@intel.com> Signed-off-by: Paolo Bonzini --- target/i386/cpu.h | 1 + target/i386/cpu.c | 1 + scripts/kvm/vmxcap | 1 + 3 files changed, 3 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 9a582218f43..8ff27e933de 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1071,6 +1071,7 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWo= rd w, #define MSR_VMX_BASIC_INS_OUTS (1ULL << 54) #define MSR_VMX_BASIC_TRUE_CTLS (1ULL << 55) #define MSR_VMX_BASIC_ANY_ERRCODE (1ULL << 56) +#define MSR_VMX_BASIC_NESTED_EXCEPTION (1ULL << 58) =20 #define MSR_VMX_MISC_PREEMPTION_TIMER_SHIFT_MASK 0x1Full #define MSR_VMX_MISC_STORE_LMA (1ULL << 5) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index bfb5a25e596..383230fa479 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1492,6 +1492,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] =3D { [54] =3D "vmx-ins-outs", [55] =3D "vmx-true-ctls", [56] =3D "vmx-any-errcode", + [58] =3D "vmx-nested-exception", }, .msr =3D { .index =3D MSR_IA32_VMX_BASIC, diff --git a/scripts/kvm/vmxcap b/scripts/kvm/vmxcap index 44898d73c2e..508be19c758 100755 --- a/scripts/kvm/vmxcap +++ b/scripts/kvm/vmxcap @@ -117,6 +117,7 @@ controls =3D [ 54: 'INS/OUTS instruction information', 55: 'IA32_VMX_TRUE_*_CTLS support', 56: 'Skip checks on event error code', + 58: 'VMX nested exception support', }, msr =3D MSR_IA32_VMX_BASIC, ), --=20 2.45.1