The spec mandates that if the vmptrld or vmclear address is equal to the vmxon region pointer, the instruction should fail with error "VMPTRLD with VMXON pointer" or "VMCLEAR with VMXON pointer"
Signed-off-by: Bandan Das <[email protected]> --- arch/x86/kvm/vmx.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 059906a..6c125ff 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6083,6 +6083,12 @@ static int handle_vmclear(struct kvm_vcpu *vcpu) return 1; } + if (vmptr == vmx->nested.vmxon_ptr) { + nested_vmx_failValid(vcpu, VMXERR_VMCLEAR_VMXON_POINTER); + skip_emulated_instruction(vcpu); + return 1; + } + if (vmptr == vmx->nested.current_vmptr) { nested_release_vmcs12(vmx); vmx->nested.current_vmptr = -1ull; @@ -6426,6 +6432,12 @@ static int handle_vmptrld(struct kvm_vcpu *vcpu) return 1; } + if (vmptr == vmx->nested.vmxon_ptr) { + nested_vmx_failValid(vcpu, VMXERR_VMCLEAR_VMXON_POINTER); + skip_emulated_instruction(vcpu); + return 1; + } + if (vmx->nested.current_vmptr != vmptr) { struct vmcs12 *new_vmcs12; struct page *page; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
