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Commit 4e1096d2 authored by Sheng Yang's avatar Sheng Yang Committed by Avi Kivity
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KVM: VMX: Add ept_sync_context in flush_tlb 



Fix a potention issue caused by kvm_mmu_slot_remove_write_access(). The
old behavior don't sync EPT TLB with modified EPT entry, which result
in inconsistent content of EPT TLB and EPT table.

Signed-off-by: default avatarSheng Yang <sheng.yang@intel.com>
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
parent 5a4c9288

arch/x86/kvm/vmx.c

+3 −0
Original line number Diff line number Diff line
@@ -91,6 +91,7 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu) 
}



static int init_rmode(struct kvm *kvm);

static u64 construct_eptp(unsigned long root_hpa);



static DEFINE_PER_CPU(struct vmcs *, vmxarea);

static DEFINE_PER_CPU(struct vmcs *, current_vmcs);
@@ -1422,6 +1423,8 @@ static void exit_lmode(struct kvm_vcpu *vcpu) 
static void vmx_flush_tlb(struct kvm_vcpu *vcpu)

{

	vpid_sync_vcpu_all(to_vmx(vcpu));

	if (vm_need_ept())

		ept_sync_context(construct_eptp(vcpu->arch.mmu.root_hpa));

}



static void vmx_decache_cr4_guest_bits(struct kvm_vcpu *vcpu)