[PATCH 9/9] KVM, pkeys: disable PKU feature without ept

[Huaitong Han]

This patch disables CPUID:PKU without ept.

Signed-off-by: Huaitong Han <huaitong....@intel.com>

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index ece687b..e1113ae 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -447,6 +447,8 @@ 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)
+                               entry->ecx &= ~F(PKU);
                } else {
                        entry->ebx = 0;
                        entry->ecx = 0;
-- 
2.4.3

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