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| author | David Hildenbrand <david@redhat.com> | 2017-08-24 21:51:30 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-10-12 15:01:52 +0300 |
| commit | f5f51586dba5bb29b21ed5d4c649f4edf72af327 (patch) | |
| tree | 9ea745e6bbc910c20939d5dfea838252f69b2e15 /arch/x86/kvm | |
| parent | fdf288bf726a491ff1e300c245194be48a6882fd (diff) | |
| download | linux-f5f51586dba5bb29b21ed5d4c649f4edf72af327.tar.xz | |
KVM: VMX: require INVEPT GLOBAL for EPT
Without this, we won't be able to do any flushes, so let's just require
it. Should be absent in very strange configurations.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 7d944d3feb8a..7fffdd4446cf 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -1598,8 +1598,7 @@ static inline void vpid_sync_context(int vpid) static inline void ept_sync_global(void) { - if (cpu_has_vmx_invept_global()) - __invept(VMX_EPT_EXTENT_GLOBAL, 0, 0); + __invept(VMX_EPT_EXTENT_GLOBAL, 0, 0); } static inline void ept_sync_context(u64 eptp) @@ -6747,7 +6746,8 @@ static __init int hardware_setup(void) if (!cpu_has_vmx_ept() || !cpu_has_vmx_ept_4levels() || - !cpu_has_vmx_ept_mt_wb()) { + !cpu_has_vmx_ept_mt_wb() || + !cpu_has_vmx_invept_global()) { enable_ept = 0; enable_unrestricted_guest = 0; enable_ept_ad_bits = 0; |