diff options
| author | Jim Mattson <jmattson@google.com> | 2017-03-15 07:56:11 -0700 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-04-07 16:49:00 +0200 |
| commit | f0b98c02c18a3c76ccf359478f68c9bae81b5f78 (patch) | |
| tree | 9aaa814536c59e3449a171042678e3bcac77281b /arch | |
| parent | 715958f921c244c90c82e5ab74bf76f09a77225d (diff) | |
kvm: vmx: Don't use INVVPID when EPT is enabled
According to the Intel SDM, volume 3, section 28.3.2: Creating and
Using Cached Translation Information, "No linear mappings are used
while EPT is in use." INVEPT will invalidate both the guest-physical
mappings and the combined mappings in the TLBs and paging-structure
caches, so an INVVPID is superfluous.
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 2ee00dbbbd51..eb776b613d78 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -4017,11 +4017,12 @@ static void exit_lmode(struct kvm_vcpu *vcpu) static inline void __vmx_flush_tlb(struct kvm_vcpu *vcpu, int vpid) { - vpid_sync_context(vpid); if (enable_ept) { if (!VALID_PAGE(vcpu->arch.mmu.root_hpa)) return; ept_sync_context(construct_eptp(vcpu->arch.mmu.root_hpa)); + } else { + vpid_sync_context(vpid); } } |