@@ -662,7 +662,7 @@ void kvm_set_cpu_caps(void)
);
kvm_cpu_cap_init_scattered(CPUID_7_1_EDX,
- F(AVX_VNNI_INT8) | F(AVX_NE_CONVERT)
+ F(AVX_VNNI_INT8) | F(AVX_NE_CONVERT) | F(PREFETCHITI)
);
kvm_cpu_cap_mask(CPUID_D_1_EAX,
@@ -36,6 +36,7 @@ enum kvm_only_cpuid_leafs {
/* Intel-defined sub-features, CPUID level 0x00000007:1 (EDX) */
#define X86_FEATURE_AVX_VNNI_INT8 KVM_X86_FEATURE(CPUID_7_1_EDX, 4)
#define X86_FEATURE_AVX_NE_CONVERT KVM_X86_FEATURE(CPUID_7_1_EDX, 5)
+#define X86_FEATURE_PREFETCHITI KVM_X86_FEATURE(CPUID_7_1_EDX, 14)
struct cpuid_reg {
u32 function;
Latest Intel platform Granite Rapids has introduced a new instruction - PREFETCHIT0/1, which moves code to memory (cache) closer to the processor depending on specific hints. The bit definition: CPUID.(EAX=7,ECX=1):EDX[bit 14] This CPUID is exposed to user space. Besides, there is no other VMX control for this instruction. Signed-off-by: Jiaxi Chen <jiaxi.chen@linux.intel.com> --- arch/x86/kvm/cpuid.c | 2 +- arch/x86/kvm/reverse_cpuid.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-)