[RFC PATCH v6 76/92] kvm: x86: disable EPT A/D bits if introspection is present
From: Adalbert Lazăr <hidden>
Date: 2019-08-09 16:04:59
Also in:
kvm, linux-mm
Subsystem:
kernel virtual machine for x86 (kvm/x86), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Sean Christopherson, Paolo Bonzini, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
Signed-off-by: Adalbert Lazăr <redacted> --- arch/x86/kvm/vmx/vmx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index dc648ba47df3..152c58b63f69 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c@@ -7718,7 +7718,7 @@ static __init int hardware_setup(void) !cpu_has_vmx_invept_global()) enable_ept = 0; - if (!cpu_has_vmx_ept_ad_bits() || !enable_ept) + if (!cpu_has_vmx_ept_ad_bits() || !enable_ept || kvmi_is_present()) enable_ept_ad_bits = 0; if (!cpu_has_vmx_unrestricted_guest() || !enable_ept)
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