On 2014-12-06 16:02, Bandan Das wrote: > > If L0 has disabled EPT, don't advertise unrestricted > mode at all since it depends on EPT to run real mode code. > > Signed-off-by: Bandan Das <[email protected]> > --- > arch/x86/kvm/vmx.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c > index 3e556c6..ed70394 100644 > --- a/arch/x86/kvm/vmx.c > +++ b/arch/x86/kvm/vmx.c > @@ -2377,12 +2377,12 @@ 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; >
Reviewed-by: Jan Kiszka <[email protected]> Jan
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