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From: Zhao Liu <zhao1.liu@intel.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
	Marcelo Tosatti <mtosatti@redhat.com>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org,
	Chao Gao <chao.gao@intel.com>, Xin Li <xin@zytor.com>,
	John Allen <john.allen@amd.com>, Babu Moger <babu.moger@amd.com>,
	Mathias Krause <minipli@grsecurity.net>,
	Dapeng Mi <dapeng1.mi@intel.com>, Zide Chen <zide.chen@intel.com>,
	Xiaoyao Li <xiaoyao.li@intel.com>,
	Chenyi Qiang <chenyi.qiang@intel.com>,
	Farrah Chen <farrah.chen@intel.com>,
	Zhao Liu <zhao1.liu@intel.com>
Subject: [PATCH v4 05/23] i386/cpu: Add avx10 dependency for Opmask/ZMM_Hi256/Hi16_ZMM
Date: Tue, 18 Nov 2025 11:42:13 +0800	[thread overview]
Message-ID: <20251118034231.704240-6-zhao1.liu@intel.com> (raw)
In-Reply-To: <20251118034231.704240-1-zhao1.liu@intel.com>

With feature array in ExtSaveArea, add avx10 as the second dependency
for Opmask/ZMM_Hi256/Hi16_ZMM xsave components, and drop the special
check in cpuid_has_xsave_feature().

Tested-by: Farrah Chen <farrah.chen@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
 target/i386/cpu.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index e495e6d9b21c..70a282668f72 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -2054,18 +2054,21 @@ ExtSaveArea x86_ext_save_areas[XSAVE_STATE_AREA_COUNT] = {
         .size = sizeof(XSaveOpmask),
         .features = {
             { FEAT_7_0_EBX,         CPUID_7_0_EBX_AVX512F },
+            { FEAT_7_1_EDX,         CPUID_7_1_EDX_AVX10   },
         },
     },
     [XSTATE_ZMM_Hi256_BIT] = {
         .size = sizeof(XSaveZMM_Hi256),
         .features = {
             { FEAT_7_0_EBX,         CPUID_7_0_EBX_AVX512F },
+            { FEAT_7_1_EDX,         CPUID_7_1_EDX_AVX10   },
         },
     },
     [XSTATE_Hi16_ZMM_BIT] = {
         .size = sizeof(XSaveHi16_ZMM),
         .features = {
             { FEAT_7_0_EBX,         CPUID_7_0_EBX_AVX512F },
+            { FEAT_7_1_EDX,         CPUID_7_1_EDX_AVX10   },
         },
     },
     [XSTATE_PKRU_BIT] = {
@@ -8648,12 +8651,6 @@ static bool cpuid_has_xsave_feature(CPUX86State *env, const ExtSaveArea *esa)
         }
     }
 
-    if (esa->features[0].index == FEAT_7_0_EBX &&
-        esa->features[0].mask == CPUID_7_0_EBX_AVX512F &&
-        (env->features[FEAT_7_1_EDX] & CPUID_7_1_EDX_AVX10)) {
-        return true;
-    }
-
     return false;
 }
 
-- 
2.34.1



  parent reply	other threads:[~2025-11-18  3:21 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-18  3:42 [PATCH v4 00/23] i386: Support CET for KVM Zhao Liu
2025-11-18  3:42 ` [PATCH v4 01/23] i386/cpu: Clean up indent style of x86_ext_save_areas[] Zhao Liu
2025-11-18  3:42 ` [PATCH v4 02/23] i386/cpu: Clean up arch lbr xsave struct and comment Zhao Liu
2025-11-18  3:42 ` [PATCH v4 03/23] i386/cpu: Reorganize arch lbr structure definitions Zhao Liu
2025-11-18  3:42 ` [PATCH v4 04/23] i386/cpu: Make ExtSaveArea store an array of dependencies Zhao Liu
2025-11-18  3:42 ` Zhao Liu [this message]
2025-11-18  3:42 ` [PATCH v4 06/23] i386/kvm: Initialize x86_ext_save_areas[] based on KVM support Zhao Liu
2025-11-18  3:42 ` [PATCH v4 07/23] i386/cpu: Use x86_ext_save_areas[] for CPUID.0XD subleaves Zhao Liu
2025-11-18  3:42 ` [PATCH v4 08/23] i386/cpu: Reorganize dependency check for arch lbr state Zhao Liu
2025-11-18  3:42 ` [PATCH v4 09/23] i386/cpu: Drop pmu check in CPUID 0x1C encoding Zhao Liu
2025-11-18  3:42 ` [PATCH v4 10/23] i386/cpu: Fix supervisor xstate initialization Zhao Liu
2025-11-18  3:42 ` [PATCH v4 11/23] i386/cpu: Add missing migratable xsave features Zhao Liu
2025-11-18  3:42 ` [PATCH v4 12/23] i386/cpu: Enable xsave support for CET states Zhao Liu
2025-11-18  3:42 ` [PATCH v4 13/23] i386/cpu: Add CET support in CR4 Zhao Liu
2025-11-18  3:42 ` [PATCH v4 14/23] i386/cpu: Save/restore SSP0 MSR for FRED Zhao Liu
2025-11-18  3:42 ` [PATCH v4 15/23] i386/kvm: Add save/restore support for CET MSRs Zhao Liu
2025-11-18  3:42 ` [PATCH v4 16/23] i386/kvm: Add save/restore support for KVM_REG_GUEST_SSP Zhao Liu
2025-11-18  3:42 ` [PATCH v4 17/23] i386/cpu: Migrate MSR_IA32_PL0_SSP for FRED and CET-SHSTK Zhao Liu
2025-11-18  3:42 ` [PATCH v4 18/23] i386/machine: Add vmstate for cet-shstk and cet-ibt Zhao Liu
2025-11-18  3:42 ` [PATCH v4 19/23] i386/cpu: Mark cet-u & cet-s xstates as migratable Zhao Liu
2025-11-18  3:42 ` [PATCH v4 20/23] i386/cpu: Advertise CET related flags in feature words Zhao Liu
2025-11-18  3:42 ` [PATCH v4 21/23] i386/cpu: Enable cet-ss & cet-ibt for supported CPU models Zhao Liu
2025-11-18  3:42 ` [PATCH v4 22/23] i386/tdx: Fix missing spaces in tdx_xfam_deps[] Zhao Liu
2025-11-18  3:42 ` [PATCH v4 23/23] i386/tdx: Add CET SHSTK/IBT into the supported CPUID by XFAM Zhao Liu

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