From: Wanpeng Li <wanpeng.li@xxxxxxxxxxx> SDM mentioned: "If either the “unrestricted guest” VM-execution control or the “mode-based execute control for EPT” VM- execution control is 1, the “enable EPT” VM-execution control must also be 1." However, we can still observe unrestricted_guest is Y after inserting the kvm-intel.ko w/ ept=N. It depends on later starts a guest in order that the function vmx_compute_secondary_exec_control() can be executed, then both the module parameter and exec control fields will be amended. This patch fixes it by amending module parameter immediately during vmcs data setup. Cc: Paolo Bonzini <pbonzini@xxxxxxxxxx> Cc: Radim Krčmář <rkrcmar@xxxxxxxxxx> Signed-off-by: Wanpeng Li <wanpeng.li@xxxxxxxxxxx> --- arch/x86/kvm/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 244e366..3e664ca 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6737,7 +6737,7 @@ static __init int hardware_setup(void) if (!cpu_has_vmx_ept_ad_bits() || !enable_ept) enable_ept_ad_bits = 0; - if (!cpu_has_vmx_unrestricted_guest()) + if (!cpu_has_vmx_unrestricted_guest() || !enable_ept) enable_unrestricted_guest = 0; if (!cpu_has_vmx_flexpriority()) -- 2.7.4
