This patch disables CPUID:PKU without ept, becase pkeys is not supported
with softmmu.
Signed-off-by: Huaitong Han <huaitong.han@xxxxxxxxx>
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index ece687b..e422f0a 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -447,6 +447,9 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->ebx |= F(TSC_ADJUST);
entry->ecx &= kvm_supported_word11_x86_features;
cpuid_mask(&entry->ecx, 13);
+ if (!tdp_enabled)
+ /* PKU cannot work with softmmu */
+ entry->ecx &= ~F(PKU);
} else {
entry->ebx = 0;
entry->ecx = 0;
--
2.4.3
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