diff options
| author | Chenyi Qiang <chenyi.qiang@intel.com> | 2019-11-19 16:33:59 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-11-20 14:23:26 +0100 |
| commit | c79eb77554bb6dde8ecd5319e2824e4c8e1f4819 (patch) | |
| tree | bbe07217e4fd4e4af1a11b0b64f93de950687594 /arch | |
| parent | cc877670975be9082138e34f9e55d9d79c527b5c (diff) | |
| download | linux-c79eb77554bb6dde8ecd5319e2824e4c8e1f4819.tar.bz2 | |
KVM: nVMX: add CR4_LA57 bit to nested CR4_FIXED1
When L1 guest uses 5-level paging, it fails vm-entry to L2 due to
invalid host-state. It needs to add CR4_LA57 bit to nested CR4_FIXED1
MSR.
Signed-off-by: Chenyi Qiang <chenyi.qiang@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 621142e55e28..89253d60e23a 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -6962,6 +6962,7 @@ static void nested_vmx_cr_fixed1_bits_update(struct kvm_vcpu *vcpu) cr4_fixed1_update(X86_CR4_SMAP, ebx, bit(X86_FEATURE_SMAP)); cr4_fixed1_update(X86_CR4_PKE, ecx, bit(X86_FEATURE_PKU)); cr4_fixed1_update(X86_CR4_UMIP, ecx, bit(X86_FEATURE_UMIP)); + cr4_fixed1_update(X86_CR4_LA57, ecx, bit(X86_FEATURE_LA57)); #undef cr4_fixed1_update } |