diff options
| -rw-r--r-- | arch/x86/kvm/vmx.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 8c9085d..2201e38 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -340,6 +340,11 @@ static inline bool cpu_has_vmx_ept_1g_page(void) return vmx_capability.ept & VMX_EPT_1GB_PAGE_BIT; } +static inline bool cpu_has_vmx_ept_4levels(void) +{ + return vmx_capability.ept & VMX_EPT_PAGE_WALK_4_BIT; +} + static inline bool cpu_has_vmx_invept_individual_addr(void) { return vmx_capability.ept & VMX_EPT_EXTENT_INDIVIDUAL_BIT; @@ -1568,7 +1573,8 @@ static __init int hardware_setup(void) if (!cpu_has_vmx_vpid()) enable_vpid = 0; - if (!cpu_has_vmx_ept()) { + if (!cpu_has_vmx_ept() || + !cpu_has_vmx_ept_4levels()) { enable_ept = 0; enable_unrestricted_guest = 0; } |
