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Tue, 29 Oct 2024 08:19:03 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGW1QCg7TiuyBlyPBi6p8Zdn9CMlnu+h38IwmZrwi4KsriZB8mPnNJH7WBdwXd8ggdn996epQ== X-Received: by 2002:a05:600c:4e91:b0:431:54f3:11af with SMTP id 5b1f17b1804b1-4319ad2103emr95091325e9.31.1730215142685; Tue, 29 Oct 2024 08:19:02 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com Subject: [PATCH 1/8] target/i386: cpu: set correct supported XCR0 features for TCG Date: Tue, 29 Oct 2024 16:18:51 +0100 Message-ID: <20241029151858.550269-2-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=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: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215259080116600 Content-Type: text/plain; charset="utf-8" Signed-off-by: Paolo Bonzini Reviewed-by: Zhao Liu --- target/i386/cpu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 5886b44fcf7..f08e9b8f1bc 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1318,7 +1318,9 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] =3D { .needs_ecx =3D true, .ecx =3D 0, .reg =3D R_EAX, }, - .tcg_features =3D ~0U, + .tcg_features =3D XSTATE_FP_MASK | XSTATE_SSE_MASK | + XSTATE_YMM_MASK | XSTATE_BNDREGS_MASK | XSTATE_BNDCSR_MASK | + XSTATE_PKRU_MASK, .migratable_flags =3D XSTATE_FP_MASK | XSTATE_SSE_MASK | XSTATE_YMM_MASK | XSTATE_BNDREGS_MASK | XSTATE_BNDCSR_MASK | XSTATE_OPMASK_MASK | XSTATE_ZMM_Hi256_MASK | XSTATE_Hi16_ZMM_M= ASK | @@ -1331,7 +1333,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] =3D { .needs_ecx =3D true, .ecx =3D 0, .reg =3D R_EDX, }, - .tcg_features =3D ~0U, + .tcg_features =3D 0U, }, /*Below are MSR exposed features*/ [FEAT_ARCH_CAPABILITIES] =3D { --=20 2.47.0 From nobody Sat Nov 23 18:12:43 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Tue, 29 Oct 2024 08:19:05 -0700 (PDT) X-Google-Smtp-Source: AGHT+IH4saYzE0tgf9mYzcF9FdC3vqsQk/xuOLBYideCq6dfXxsx0z+qYlzuVvewOADuaXryxD8bbg== X-Received: by 2002:a05:6512:12d1:b0:539:fcba:cc6d with SMTP id 2adb3069b0e04-53b34a19019mr5150137e87.42.1730215144603; Tue, 29 Oct 2024 08:19:04 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com Subject: [PATCH 2/8] target/i386: do not rely on ExtSaveArea for accelerator-supported XCR0 bits Date: Tue, 29 Oct 2024 16:18:52 +0100 Message-ID: <20241029151858.550269-3-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215212925116600 Content-Type: text/plain; charset="utf-8" Right now, QEMU is using the "feature" and "bits" fields of ExtSaveArea to query the accelerator for the support status of extended save areas. This is a problem for AVX10, which attaches two feature bits (AVX512F and AVX10) to the same extended save states. To keep the AVX10 hacks to the minimum, limit usage of esa->features and esa->bits. Instead, just query the accelerator for the 0xD leaf. Do it in common code and clear esa->size if an extended save state is unsupported. Signed-off-by: Paolo Bonzini Reviewed-by: Zhao Liu --- target/i386/cpu.c | 33 +++++++++++++++++++++++++++++++-- target/i386/kvm/kvm-cpu.c | 4 ---- 2 files changed, 31 insertions(+), 6 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index f08e9b8f1bc..1ee4d988caf 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -7102,6 +7102,15 @@ static void x86_cpu_set_sgxlepubkeyhash(CPUX86State = *env) #endif } =20 +static bool cpuid_has_xsave_feature(CPUX86State *env, const ExtSaveArea *e= sa) +{ + if (!esa->size) { + return false; + } + + return (env->features[esa->feature] & esa->bits); +} + static void x86_cpu_reset_hold(Object *obj, ResetType type) { CPUState *cs =3D CPU(obj); @@ -7210,7 +7219,7 @@ static void x86_cpu_reset_hold(Object *obj, ResetType= type) if (!((1 << i) & CPUID_XSTATE_XCR0_MASK)) { continue; } - if (env->features[esa->feature] & esa->bits) { + if (cpuid_has_xsave_feature(env, esa)) { xcr0 |=3D 1ull << i; } } @@ -7348,7 +7357,7 @@ static void x86_cpu_enable_xsave_components(X86CPU *c= pu) mask =3D 0; for (i =3D 0; i < ARRAY_SIZE(x86_ext_save_areas); i++) { const ExtSaveArea *esa =3D &x86_ext_save_areas[i]; - if (env->features[esa->feature] & esa->bits) { + if (cpuid_has_xsave_feature(env, esa)) { mask |=3D (1ULL << i); } } @@ -8020,6 +8029,26 @@ static void x86_cpu_register_feature_bit_props(X86CP= UClass *xcc, =20 static void x86_cpu_post_initfn(Object *obj) { + static bool first =3D true; + uint64_t supported_xcr0; + int i; + + if (first) { + first =3D false; + + supported_xcr0 =3D + ((uint64_t) x86_cpu_get_supported_feature_word(NULL, FEAT_XSAV= E_XCR0_HI) << 32) | + x86_cpu_get_supported_feature_word(NULL, FEAT_XSAVE_XCR0_LO); + + for (i =3D XSTATE_SSE_BIT + 1; i < XSAVE_STATE_AREA_COUNT; i++) { + ExtSaveArea *esa =3D &x86_ext_save_areas[i]; + + if (!(supported_xcr0 & (1 << i))) { + esa->size =3D 0; + } + } + } + accel_cpu_instance_init(CPU(obj)); } =20 diff --git a/target/i386/kvm/kvm-cpu.c b/target/i386/kvm/kvm-cpu.c index 6bf8dcfc607..d9306418490 100644 --- a/target/i386/kvm/kvm-cpu.c +++ b/target/i386/kvm/kvm-cpu.c @@ -133,10 +133,6 @@ static void kvm_cpu_xsave_init(void) if (!esa->size) { continue; 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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: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215176674116600 Content-Type: text/plain; charset="utf-8" Prepare for filtering non-boolean features such as AVX10 version. Signed-off-by: Paolo Bonzini Reviewed-by: Zhao Liu --- target/i386/cpu.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 1ee4d988caf..c2f6045ec1c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5840,7 +5840,7 @@ static void x86_cpu_parse_featurestr(const char *type= name, char *features, } } =20 -static void x86_cpu_filter_features(X86CPU *cpu, bool verbose); +static bool x86_cpu_filter_features(X86CPU *cpu, bool verbose); =20 /* Build a list with the name of all features on a feature word array */ static void x86_cpu_list_feature_names(FeatureWordArray features, @@ -7558,7 +7558,7 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **err= p) * * Returns: 0 if all flags are supported by the host, non-zero otherwise. */ -static void x86_cpu_filter_features(X86CPU *cpu, bool verbose) +static bool x86_cpu_filter_features(X86CPU *cpu, bool verbose) { CPUX86State *env =3D &cpu->env; FeatureWord w; @@ -7610,6 +7610,8 @@ static void x86_cpu_filter_features(X86CPU *cpu, bool= verbose) mark_unavailable_features(cpu, FEAT_7_0_EBX, CPUID_7_0_EBX_INT= EL_PT, prefix); } } + + return x86_cpu_have_filtered_features(cpu); } =20 static void x86_cpu_hyperv_realize(X86CPU *cpu) @@ -7707,14 +7709,14 @@ static void x86_cpu_realizefn(DeviceState *dev, Err= or **errp) } } =20 - x86_cpu_filter_features(cpu, cpu->check_cpuid || cpu->enforce_cpuid); - - if (cpu->enforce_cpuid && x86_cpu_have_filtered_features(cpu)) { - error_setg(&local_err, - accel_uses_host_cpuid() ? + if (x86_cpu_filter_features(cpu, cpu->check_cpuid || cpu->enforce_cpui= d)) { + if (cpu->enforce_cpuid) { + error_setg(&local_err, + accel_uses_host_cpuid() ? 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Tue, 29 Oct 2024 08:19:11 -0700 (PDT) X-Google-Smtp-Source: AGHT+IH4wg9p2eEfzZsuqKc/Zds5oNZ1sCpx+RzELh5coGNHGtE/YZIBwyglL7sHISQKGja0zw+2HA== X-Received: by 2002:adf:ce89:0:b0:37d:476d:2d58 with SMTP id ffacd0b85a97d-380611e56aemr8716789f8f.45.1730215151160; Tue, 29 Oct 2024 08:19:11 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com Subject: [PATCH 4/8] target/i386: add AVX10 feature and AVX10 version property Date: Tue, 29 Oct 2024 16:18:54 +0100 Message-ID: <20241029151858.550269-5-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215244899116600 Content-Type: text/plain; charset="utf-8" From: Tao Su When AVX10 enable bit is set, the 0x24 leaf will be present as "AVX10 Converged Vector ISA leaf" containing fields for the version number and the supported vector bit lengths. Introduce avx10-version property so that avx10 version can be controlled by user and cpu model. Per spec, avx10 version can never be 0, the default value of avx10-version is set to 0 to determine whether it is specified by user. The default can come from the device model or, for the max model, from KVM's reported value. Signed-off-by: Tao Su Link: https://lore.kernel.org/r/20241028024512.156724-3-tao1.su@linux.intel= .com Link: https://lore.kernel.org/r/20241028024512.156724-4-tao1.su@linux.intel= .com Signed-off-by: Paolo Bonzini --- target/i386/cpu.h | 4 +++ target/i386/cpu.c | 64 ++++++++++++++++++++++++++++++++++++++----- target/i386/kvm/kvm.c | 3 +- 3 files changed, 63 insertions(+), 8 deletions(-) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index a0a122cb5bf..72e98b25114 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -975,6 +975,8 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu= , FeatureWord w); #define CPUID_7_1_EDX_AMX_COMPLEX (1U << 8) /* PREFETCHIT0/1 Instructions */ #define CPUID_7_1_EDX_PREFETCHITI (1U << 14) +/* Support for Advanced Vector Extensions 10 */ +#define CPUID_7_1_EDX_AVX10 (1U << 19) /* Flexible return and event delivery (FRED) */ #define CPUID_7_1_EAX_FRED (1U << 17) /* Load into IA32_KERNEL_GS_BASE (LKGS) */ @@ -1954,6 +1956,8 @@ typedef struct CPUArchState { uint32_t cpuid_vendor3; uint32_t cpuid_version; FeatureWordArray features; + /* AVX10 version */ + uint8_t avx10_version; /* Features that were explicitly enabled/disabled */ FeatureWordArray user_features; uint32_t cpuid_model[12]; diff --git a/target/i386/cpu.c b/target/i386/cpu.c index c2f6045ec1c..fdbfcc59da4 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -46,6 +46,9 @@ #include "cpu-internal.h" =20 static void x86_cpu_realizefn(DeviceState *dev, Error **errp); +static void x86_cpu_get_supported_cpuid(uint32_t func, uint32_t index, + uint32_t *eax, uint32_t *ebx, + uint32_t *ecx, uint32_t *edx); =20 /* Helpers for building CPUID[2] descriptors: */ =20 @@ -1132,7 +1135,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] =3D { "avx-vnni-int8", "avx-ne-convert", NULL, NULL, "amx-complex", NULL, "avx-vnni-int16", NULL, NULL, NULL, "prefetchiti", NULL, - NULL, NULL, NULL, NULL, + NULL, NULL, NULL, "avx10", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -1989,6 +1992,7 @@ typedef struct X86CPUDefinition { int family; int model; int stepping; + int avx10_version; FeatureWordArray features; const char *model_id; const CPUCaches *const cache_info; @@ -5338,6 +5342,8 @@ static Property max_x86_cpu_properties[] =3D { static void max_x86_cpu_realize(DeviceState *dev, Error **errp) { Object *obj =3D OBJECT(dev); + X86CPU *cpu =3D X86_CPU(dev); + CPUX86State *env =3D &cpu->env; =20 if (!object_property_get_int(obj, "family", &error_abort)) { if (X86_CPU(obj)->env.features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM= ) { @@ -5351,6 +5357,14 @@ static void max_x86_cpu_realize(DeviceState *dev, Er= ror **errp) } } =20 + if ((env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10) && !env->avx10= _version) { + uint32_t eax, ebx, ecx, edx; + x86_cpu_get_supported_cpuid(0x24, 0, + &eax, &ebx, &ecx, &edx); + + env->avx10_version =3D ebx & 0xff; + } + x86_cpu_realizefn(dev, errp); } =20 @@ -6331,6 +6345,9 @@ static void x86_cpu_load_model(X86CPU *cpu, X86CPUMod= el *model) */ object_property_set_str(OBJECT(cpu), "vendor", def->vendor, &error_abo= rt); =20 + object_property_set_int(OBJECT(cpu), "avx10-version", def->avx10_versi= on, + &error_abort); + x86_cpu_apply_version_props(cpu, model); =20 /* @@ -6859,6 +6876,16 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index,= uint32_t count, } break; } + case 0x24: { + *eax =3D 0; + *ebx =3D 0; + *ecx =3D 0; + *edx =3D 0; + if (env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10) { + *ebx =3D env->avx10_version; + } + break; + } case 0x40000000: /* * CPUID code in kvm_arch_init_vcpu() ignores stuff @@ -7513,6 +7540,11 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **er= rp) x86_cpu_adjust_level(cpu, &env->cpuid_min_level, 0x1F); } =20 + /* Advanced Vector Extensions 10 (AVX10) requires CPUID[0x24] */ + if (env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10) { + x86_cpu_adjust_level(cpu, &env->cpuid_min_level, 0x24); + } + /* SVM requires CPUID[0x8000000A] */ if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) { x86_cpu_adjust_level(cpu, &env->cpuid_min_xlevel, 0x8000000A); @@ -7563,6 +7595,10 @@ static bool x86_cpu_filter_features(X86CPU *cpu, boo= l verbose) CPUX86State *env =3D &cpu->env; FeatureWord w; const char *prefix =3D NULL; + bool have_filtered_features; + + uint32_t eax_0, ebx_0, ecx_0, edx_0; + uint32_t eax_1, ebx_1, ecx_1, edx_1; =20 if (verbose) { prefix =3D accel_uses_host_cpuid() @@ -7584,13 +7620,10 @@ static bool x86_cpu_filter_features(X86CPU *cpu, bo= ol verbose) */ if ((env->features[FEAT_7_0_EBX] & CPUID_7_0_EBX_INTEL_PT) && kvm_enabled()) { - uint32_t eax_0, ebx_0, ecx_0, edx_0_unused; - uint32_t eax_1, ebx_1, ecx_1_unused, edx_1_unused; - x86_cpu_get_supported_cpuid(0x14, 0, - &eax_0, &ebx_0, &ecx_0, &edx_0_unused); + &eax_0, &ebx_0, &ecx_0, &edx_0); x86_cpu_get_supported_cpuid(0x14, 1, - &eax_1, &ebx_1, &ecx_1_unused, &edx_1_= unused); + &eax_1, &ebx_1, &ecx_1, &edx_1); =20 if (!eax_0 || ((ebx_0 & INTEL_PT_MINIMAL_EBX) !=3D INTEL_PT_MINIMAL_EBX) || @@ -7611,7 +7644,23 @@ static bool x86_cpu_filter_features(X86CPU *cpu, boo= l verbose) } } =20 - return x86_cpu_have_filtered_features(cpu); + have_filtered_features =3D x86_cpu_have_filtered_features(cpu); + + if (env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10) { + x86_cpu_get_supported_cpuid(0x24, 0, + &eax_0, &ebx_0, &ecx_0, &edx_0); + uint8_t version =3D ebx_0 & 0xff; + + if (version < env->avx10_version) { + if (prefix) { + warn_report("%s: avx10.%d", prefix, env->avx10_version); + } + env->avx10_version =3D version; + have_filtered_features =3D true; + } + } + + return have_filtered_features; } =20 static void x86_cpu_hyperv_realize(X86CPU *cpu) @@ -8395,6 +8444,7 @@ static Property x86_cpu_properties[] =3D { DEFINE_PROP_UINT32("min-level", X86CPU, env.cpuid_min_level, 0), DEFINE_PROP_UINT32("min-xlevel", X86CPU, env.cpuid_min_xlevel, 0), DEFINE_PROP_UINT32("min-xlevel2", X86CPU, env.cpuid_min_xlevel2, 0), + DEFINE_PROP_UINT8("avx10-version", X86CPU, env.avx10_version, 0), DEFINE_PROP_UINT64("ucode-rev", X86CPU, ucode_rev, 0), DEFINE_PROP_BOOL("full-cpuid-auto-level", X86CPU, full_cpuid_auto_leve= l, true), DEFINE_PROP_STRING("hv-vendor-id", X86CPU, hyperv_vendor), diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index fd9f1988920..8e17942c3ba 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1923,7 +1923,8 @@ static uint32_t kvm_x86_build_cpuid(CPUX86State *env, case 0x7: case 0x14: case 0x1d: - case 0x1e: { + case 0x1e: + case 0x24: { uint32_t times; 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Tue, 29 Oct 2024 08:19:12 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGyRkkN3T57Xw3R83w57A719dOnWaF70XOz5sMw1ShQMcHHQ/15AinK0icAmoal8xCmkPUdJA== X-Received: by 2002:a05:6000:ac1:b0:37d:3280:203a with SMTP id ffacd0b85a97d-381b7057644mr33331f8f.10.1730215152425; Tue, 29 Oct 2024 08:19:12 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com Subject: [PATCH 5/8] target/i386: add CPUID.24 features for AVX10 Date: Tue, 29 Oct 2024 16:18:55 +0100 Message-ID: <20241029151858.550269-6-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H2=-0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215264960116600 Content-Type: text/plain; charset="utf-8" From: Tao Su Introduce features for the supported vector bit lengths. Signed-off-by: Tao Su Link: https://lore.kernel.org/r/20241028024512.156724-3-tao1.su@linux.intel= .com Link: https://lore.kernel.org/r/20241028024512.156724-4-tao1.su@linux.intel= .com Reviewed-by: Zhao Liu --- target/i386/cpu.h | 8 ++++++++ target/i386/cpu.c | 15 +++++++++++++++ 2 files changed, 23 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 72e98b25114..f8f97fe9330 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -665,6 +665,7 @@ typedef enum FeatureWord { FEAT_XSAVE_XSS_HI, /* CPUID[EAX=3D0xd,ECX=3D1].EDX */ FEAT_7_1_EDX, /* CPUID[EAX=3D7,ECX=3D1].EDX */ FEAT_7_2_EDX, /* CPUID[EAX=3D7,ECX=3D2].EDX */ + FEAT_24_0_EBX, /* CPUID[EAX=3D0x24,ECX=3D0].EBX */ FEATURE_WORDS, } FeatureWord; =20 @@ -993,6 +994,13 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cp= u, FeatureWord w); /* Packets which contain IP payload have LIP values */ #define CPUID_14_0_ECX_LIP (1U << 31) =20 +/* AVX10 128-bit vector support is present */ +#define CPUID_24_0_EBX_AVX10_128 (1U << 16) +/* AVX10 256-bit vector support is present */ +#define CPUID_24_0_EBX_AVX10_256 (1U << 17) +/* AVX10 512-bit vector support is present */ +#define CPUID_24_0_EBX_AVX10_512 (1U << 18) + /* RAS Features */ #define CPUID_8000_0007_EBX_OVERFLOW_RECOV (1U << 0) #define CPUID_8000_0007_EBX_SUCCOR (1U << 1) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index fdbfcc59da4..3f7fed8e485 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -901,6 +901,7 @@ void x86_cpu_vendor_words2str(char *dst, uint32_t vendo= r1, #define TCG_SGX_12_0_EAX_FEATURES 0 #define TCG_SGX_12_0_EBX_FEATURES 0 #define TCG_SGX_12_1_EAX_FEATURES 0 +#define TCG_24_0_EBX_FEATURES 0 =20 #if defined CONFIG_USER_ONLY #define CPUID_8000_0008_EBX_KERNEL_FEATURES (CPUID_8000_0008_EBX_IBPB | \ @@ -1166,6 +1167,20 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] =3D= { }, .tcg_features =3D TCG_7_2_EDX_FEATURES, }, + [FEAT_24_0_EBX] =3D { + .type =3D CPUID_FEATURE_WORD, + .feat_names =3D { + [16] =3D "avx10-128", + [17] =3D "avx10-256", + [18] =3D "avx10-512", + }, + .cpuid =3D { + .eax =3D 0x24, + .needs_ecx =3D true, .ecx =3D 0, + .reg =3D R_EBX, + }, + .tcg_features =3D TCG_24_0_EBX_FEATURES, + }, [FEAT_8000_0007_EDX] =3D { .type =3D CPUID_FEATURE_WORD, .feat_names =3D { --=20 2.47.0 From nobody Sat Nov 23 18:12:43 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Tue, 29 Oct 2024 08:19:15 -0700 (PDT) X-Google-Smtp-Source: AGHT+IGfjRYtjIbTJ3xK4do98iY+2IIN5B9ujMq3I3QBP42ZHBFQvo/RcwMmi0K7gxPMooVXaxky8w== X-Received: by 2002:a05:600c:3ba3:b0:42c:bd4d:e8ba with SMTP id 5b1f17b1804b1-4319aca2cfemr107067035e9.8.1730215155411; Tue, 29 Oct 2024 08:19:15 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com, Xuelian Guo Subject: [PATCH 6/8] target/i386: Add feature dependencies for AVX10 Date: Tue, 29 Oct 2024 16:18:56 +0100 Message-ID: <20241029151858.550269-7-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=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: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215265069116600 Content-Type: text/plain; charset="utf-8" From: Tao Su Since the highest supported vector length for a processor implies that all lesser vector lengths are also supported, add the dependencies of the supported vector lengths. If all vector lengths aren't supported, clear AVX10 enable bit as well. Note that the order of AVX10 related dependencies should be kept as: CPUID_24_0_EBX_AVX10_128 -> CPUID_24_0_EBX_AVX10_256, CPUID_24_0_EBX_AVX10_256 -> CPUID_24_0_EBX_AVX10_512, CPUID_24_0_EBX_AVX10_VL_MASK -> CPUID_7_1_EDX_AVX10, CPUID_7_1_EDX_AVX10 -> CPUID_24_0_EBX, so that prevent user from setting weird CPUID combinations, e.g. 256-bits and 512-bits are supported but 128-bits is not, no vector lengths are supported but AVX10 enable bit is still set. Since AVX10_128 will be reserved as 1, adding these dependencies has the bonus that when user sets -cpu host,-avx10-128, CPUID_7_1_EDX_AVX10 and CPUID_24_0_EBX will be disabled automatically. Tested-by: Xuelian Guo Signed-off-by: Tao Su Link: https://lore.kernel.org/r/20241028024512.156724-5-tao1.su@linux.intel= .com Reviewed-by: Zhao Liu Signed-off-by: Paolo Bonzini --- target/i386/cpu.h | 4 ++++ target/i386/cpu.c | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/target/i386/cpu.h b/target/i386/cpu.h index f8f97fe9330..59959b8b7a4 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1000,6 +1000,10 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *= cpu, FeatureWord w); #define CPUID_24_0_EBX_AVX10_256 (1U << 17) /* AVX10 512-bit vector support is present */ #define CPUID_24_0_EBX_AVX10_512 (1U << 18) +/* AVX10 vector length support mask */ +#define CPUID_24_0_EBX_AVX10_VL_MASK (CPUID_24_0_EBX_AVX10_128 | \ + CPUID_24_0_EBX_AVX10_256 | \ + CPUID_24_0_EBX_AVX10_512) =20 /* RAS Features */ #define CPUID_8000_0007_EBX_OVERFLOW_RECOV (1U << 0) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 3f7fed8e485..4c86a49ad05 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1787,6 +1787,22 @@ static FeatureDep feature_dependencies[] =3D { .from =3D { FEAT_7_0_EBX, CPUID_7_0_EBX_SGX }, .to =3D { FEAT_SGX_12_1_EAX, ~0ull }, }, + { + .from =3D { FEAT_24_0_EBX, CPUID_24_0_EBX_AVX10_128 }, + .to =3D { FEAT_24_0_EBX, CPUID_24_0_EBX_AVX10_256 }, + }, + { + .from =3D { FEAT_24_0_EBX, CPUID_24_0_EBX_AVX10_256 }, + .to =3D { FEAT_24_0_EBX, CPUID_24_0_EBX_AVX10_512 }, + }, + { + .from =3D { FEAT_24_0_EBX, CPUID_24_0_EBX_AVX10_VL_MASK= }, + .to =3D { FEAT_7_1_EDX, CPUID_7_1_EDX_AVX10 }, + }, + { + .from =3D { FEAT_7_1_EDX, CPUID_7_1_EDX_AVX10 }, + .to =3D { FEAT_24_0_EBX, ~0ull }, + }, }; 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Tue, 29 Oct 2024 08:19:18 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHWMAIfUiRbSWH/posKOyCgJJCPn1KrWgDvpMdnLFPu0itsMnydcdvKjrCyaHklg35VCeN6sw== X-Received: by 2002:a05:600c:4f91:b0:431:7ccd:ff8a with SMTP id 5b1f17b1804b1-431b5737b8emr21768165e9.14.1730215158125; Tue, 29 Oct 2024 08:19:18 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com Subject: [PATCH 7/8] target/i386: Add AVX512 state when AVX10 is supported Date: Tue, 29 Oct 2024 16:18:57 +0100 Message-ID: <20241029151858.550269-8-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=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: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215192513116600 Content-Type: text/plain; charset="utf-8" From: Tao Su AVX10 state enumeration in CPUID leaf D and enabling in XCR0 register are identical to AVX512 state regardless of the supported vector lengths. Given that some E-cores will support AVX10 but not support AVX512, add AVX512 state components to guest when AVX10 is enabled. Based on a patch by Tao Su Signed-off-by: Paolo Bonzini Reviewed-by: Zhao Liu --- target/i386/cpu.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 4c86a49ad05..b6799ddafa9 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -7166,7 +7166,15 @@ static bool cpuid_has_xsave_feature(CPUX86State *env= , const ExtSaveArea *esa) return false; } =20 - return (env->features[esa->feature] & esa->bits); + if (env->features[esa->feature] & esa->bits) { + return true; + } + if (esa->feature =3D=3D FEAT_7_0_EBX && esa->bits =3D CPUID_7_0_EBX_AV= X512F + && (features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10)) { + return true; + } + + return false; } =20 static void x86_cpu_reset_hold(Object *obj, ResetType type) --=20 2.47.0 From nobody Sat Nov 23 18:12:43 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Tue, 29 Oct 2024 08:19:21 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHGyxTx3I9tkKqHA4RrmOWySUruGsAGXNqt9IZj0tKMX5ocd+H6dIJU2XAmxFp7+50/PI3Diw== X-Received: by 2002:a05:6512:3ca1:b0:539:edf4:68b4 with SMTP id 2adb3069b0e04-53b34a320e7mr4226501e87.57.1730215161109; Tue, 29 Oct 2024 08:19:21 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: tao1.su@linux.intel.com, zhao1.liu@intel.com, xiaoyao.li@intel.com, Xuelian Guo Subject: [PATCH 8/8] target/i386: Introduce GraniteRapids-v2 model Date: Tue, 29 Oct 2024 16:18:58 +0100 Message-ID: <20241029151858.550269-9-pbonzini@redhat.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241029151858.550269-1-pbonzini@redhat.com> References: <20241029151858.550269-1-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+importer=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: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.302, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1730215266956116600 Content-Type: text/plain; charset="utf-8" From: Tao Su Update GraniteRapids CPU model to add AVX10 and the missing features(ss, tsc-adjust, cldemote, movdiri, movdir64b). Tested-by: Xuelian Guo Signed-off-by: Tao Su Link: https://lore.kernel.org/r/20241028024512.156724-7-tao1.su@linux.intel= .com Reviewed-by: Zhao Liu Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index b6799ddafa9..c39e0eb924c 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -4403,6 +4403,23 @@ static const X86CPUDefinition builtin_x86_defs[] =3D= { .model_id =3D "Intel Xeon Processor (GraniteRapids)", .versions =3D (X86CPUVersionDefinition[]) { { .version =3D 1 }, + { + .version =3D 2, + .props =3D (PropValue[]) { + { "ss", "on" }, + { "tsc-adjust", "on" }, + { "cldemote", "on" }, + { "movdiri", "on" }, + { "movdir64b", "on" }, + { "avx10", "on" }, + { "avx10-128", "on" }, + { "avx10-256", "on" }, + { "avx10-512", "on" }, + { "avx10-version", "1" }, + { "stepping", "1" }, + { /* end of list */ } + } + }, { /* end of list */ }, }, }, --=20 2.47.0