Messages in this thread Patch in this message | | | From | John Allen <> | Subject | [RFC PATCH v3 8/8] KVM: SVM: Add CET features to supported_xss | Date | Thu, 17 Aug 2023 18:18:20 +0000 |
| |
If the CPU supports CET, add CET XSAVES feature bits to the supported_xss mask.
Signed-off-by: John Allen <john.allen@amd.com> --- v2: - Remove curly braces around if statement --- arch/x86/kvm/svm/svm.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 683bf18b965d..685f8715a716 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -5105,6 +5105,10 @@ static __init void svm_set_cpu_caps(void) boot_cpu_has(X86_FEATURE_AMD_SSBD)) kvm_cpu_cap_set(X86_FEATURE_VIRT_SSBD); + if (kvm_cpu_cap_has(X86_FEATURE_SHSTK)) + kvm_caps.supported_xss |= XFEATURE_MASK_CET_USER | + XFEATURE_MASK_CET_KERNEL; + if (enable_pmu) { /* * Enumerate support for PERFCTR_CORE if and only if KVM has -- 2.39.1
| |