diff options
| author | Bandan Das <bsd@redhat.com> | 2014-12-06 20:32:16 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-27 08:18:59 -0800 |
| commit | b48f65688dc020cc1a7eb3718be910a3e5681685 (patch) | |
| tree | f6183f1e4d96cee0fcc1f84d2402a3d138e4e955 | |
| parent | dbb49267de1c0ce0874b232335851011fc1fb310 (diff) | |
KVM: nVMX: Disable unrestricted mode if ept=0
commit 78051e3b7e35722ad3f31dd611f1b34770bddab8 upstream.
If L0 has disabled EPT, don't advertise unrestricted
mode at all since it depends on EPT to run real mode code.
Fixes: 92fbc7b195b824e201d9f06f2b93105f72384d65
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 0c90f4b3f835..de426887b359 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2320,12 +2320,12 @@ static __init void nested_vmx_setup_ctls_msrs(void) nested_vmx_secondary_ctls_low = 0; nested_vmx_secondary_ctls_high &= SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES | - SECONDARY_EXEC_UNRESTRICTED_GUEST | SECONDARY_EXEC_WBINVD_EXITING; if (enable_ept) { /* nested EPT: emulate EPT also to L1 */ - nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT; + nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT | + SECONDARY_EXEC_UNRESTRICTED_GUEST; nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT | VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT | VMX_EPT_INVEPT_BIT; |