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From: Yang Weijiang <weijiang.yang@intel.com>
To: pbonzini@redhat.com, ehabkost@redhat.com, mtosatti@redhat.com,
	seanjc@google.com, richard.henderson@linaro.org,
	qemu-devel@nongnu.org, kvm@vger.kernel.org
Cc: Yang Weijiang <weijiang.yang@intel.com>
Subject: [PATCH v8 6/6] target/i386: Advise CET bits in CPU/MSR feature words
Date: Thu, 20 May 2021 13:57:11 +0800	[thread overview]
Message-ID: <1621490231-4765-7-git-send-email-weijiang.yang@intel.com> (raw)
In-Reply-To: <1621490231-4765-1-git-send-email-weijiang.yang@intel.com>

CET SHSTK and IBT feature are enumerated via CPUID.(EAX=07H,ECX=0H):ECX[bit 7]
and EDX[bit 20]. CET state load/restore at vmentry/vmexit are enabled via
VMX_ENTRY_CTLS[bit 20] and VMX_EXIT_CTLS[bit 28].

Signed-off-by: Yang Weijiang <weijiang.yang@intel.com>
---
 target/i386/cpu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index bae827c8d5..b432b681d8 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -958,7 +958,7 @@ static 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", "shstk",
             "gfni", "vaes", "vpclmulqdq", "avx512vnni",
             "avx512bitalg", NULL, "avx512-vpopcntdq", NULL,
             "la57", NULL, NULL, NULL,
@@ -981,7 +981,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
             "avx512-vp2intersect", NULL, "md-clear", NULL,
             NULL, NULL, "serialize", NULL,
             "tsx-ldtrk", NULL, NULL /* pconfig */, NULL,
-            NULL, NULL, NULL, "avx512-fp16",
+            "ibt", NULL, NULL, "avx512-fp16",
             NULL, NULL, "spec-ctrl", "stibp",
             NULL, "arch-capabilities", "core-capability", "ssbd",
         },
@@ -1243,7 +1243,7 @@ static 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, NULL,
+            "vmx-exit-save-cet-ctl", "vmx-exit-load-pkrs", NULL, NULL,
         },
         .msr = {
             .index = MSR_IA32_VMX_TRUE_EXIT_CTLS,
@@ -1258,7 +1258,7 @@ static 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", NULL,
+            "vmx-entry-load-cet-ctl", NULL, "vmx-entry-load-pkrs", NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
         },
-- 
2.26.2


      parent reply	other threads:[~2021-05-20  5:43 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20  5:57 [PATCH v8 0/6] Enable CET support for guest Yang Weijiang
2021-05-20  5:57 ` [PATCH v8 1/6] target/i386: Change XSAVE related feature-word names Yang Weijiang
2021-05-20  5:57 ` [PATCH v8 2/6] target/i386: Enable XSS feature CPUID enumeration Yang Weijiang
2021-05-20  5:57 ` [PATCH v8 3/6] target/i386: Enable XSAVES support for CET states Yang Weijiang
2021-05-20  5:57 ` [PATCH v8 4/6] target/i386: Add user-space MSR access interface for CET Yang Weijiang
2021-05-20  5:57 ` [PATCH v8 5/6] target/i386: Add CET state support for guest migration Yang Weijiang
2021-05-20  5:57 ` Yang Weijiang [this message]

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