From: Yang Weijiang Add SHSTK and IBT flags in feature words with entry/exit control flags. CET SHSTK and IBT feature are enumerated via CPUID(EAX=7,ECX=0) ECX[bit 7] and EDX[bit 20]. CET states load/restore at vmentry/ vmexit are controlled by VMX_ENTRY_CTLS[bit 20] and VMX_EXIT_CTLS[bit 28]. Enable these flags so that KVM can enumerate the features properly. Tested-by: Farrah Chen Signed-off-by: Yang Weijiang Co-developed-by: Chao Gao Signed-off-by: Chao Gao Co-developed-by: Zhao Liu Signed-off-by: Zhao Liu --- Changes Since v2: - Rename "shstk"/"ibt" to "cet-ss"/"cet-ibt" to match feature names in SDM & APM. - Rename "vmx-exit-save-cet-ctl"/"vmx-entry-load-cet-ctl" to "vmx-exit-save-cet"/"vmx-entry-load-cet". - Define the feature mask macro for easier double check. --- target/i386/cpu.c | 8 ++++---- target/i386/cpu.h | 2 ++ 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index c08066a338a3..9a1001c47891 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1221,7 +1221,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .type = CPUID_FEATURE_WORD, .feat_names = { NULL, "avx512vbmi", "umip", "pku", - NULL /* ospke */, "waitpkg", "avx512vbmi2", NULL, + NULL /* ospke */, "waitpkg", "avx512vbmi2", "cet-ss", "gfni", "vaes", "vpclmulqdq", "avx512vnni", "avx512bitalg", NULL, "avx512-vpopcntdq", NULL, "la57", NULL, NULL, NULL, @@ -1244,7 +1244,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "avx512-vp2intersect", NULL, "md-clear", NULL, NULL, NULL, "serialize", NULL, "tsx-ldtrk", NULL, NULL /* pconfig */, "arch-lbr", - NULL, NULL, "amx-bf16", "avx512-fp16", + "cet-ibt", NULL, "amx-bf16", "avx512-fp16", "amx-tile", "amx-int8", "spec-ctrl", "stibp", "flush-l1d", "arch-capabilities", "core-capability", "ssbd", }, @@ -1666,7 +1666,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "vmx-exit-save-efer", "vmx-exit-load-efer", "vmx-exit-save-preemption-timer", "vmx-exit-clear-bndcfgs", NULL, "vmx-exit-clear-rtit-ctl", NULL, NULL, - NULL, "vmx-exit-load-pkrs", NULL, "vmx-exit-secondary-ctls", + "vmx-exit-save-cet", "vmx-exit-load-pkrs", NULL, "vmx-exit-secondary-ctls", }, .msr = { .index = MSR_IA32_VMX_TRUE_EXIT_CTLS, @@ -1681,7 +1681,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { NULL, "vmx-entry-ia32e-mode", NULL, NULL, NULL, "vmx-entry-load-perf-global-ctrl", "vmx-entry-load-pat", "vmx-entry-load-efer", "vmx-entry-load-bndcfgs", NULL, "vmx-entry-load-rtit-ctl", NULL, - NULL, NULL, "vmx-entry-load-pkrs", "vmx-entry-load-fred", + "vmx-entry-load-cet", NULL, "vmx-entry-load-pkrs", "vmx-entry-load-fred", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index ad4287822831..fa3e5d87fe50 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -1369,6 +1369,7 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w); #define VMX_VM_EXIT_CLEAR_BNDCFGS 0x00800000 #define VMX_VM_EXIT_PT_CONCEAL_PIP 0x01000000 #define VMX_VM_EXIT_CLEAR_IA32_RTIT_CTL 0x02000000 +#define VMX_VM_EXIT_SAVE_CET 0x10000000 #define VMX_VM_EXIT_LOAD_IA32_PKRS 0x20000000 #define VMX_VM_EXIT_ACTIVATE_SECONDARY_CONTROLS 0x80000000 @@ -1382,6 +1383,7 @@ uint64_t x86_cpu_get_supported_feature_word(X86CPU *cpu, FeatureWord w); #define VMX_VM_ENTRY_LOAD_BNDCFGS 0x00010000 #define VMX_VM_ENTRY_PT_CONCEAL_PIP 0x00020000 #define VMX_VM_ENTRY_LOAD_IA32_RTIT_CTL 0x00040000 +#define VMX_VM_ENTRY_LOAD_CET 0x00100000 #define VMX_VM_ENTRY_LOAD_IA32_PKRS 0x00400000 /* Supported Hyper-V Enlightenments */ -- 2.34.1