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From: Joerg Roedel on 2 Aug 2010 16:40
On Mon, Aug 02, 2010 at 06:18:09PM +0300, Avi Kivity wrote:
> On 08/02/2010 05:46 PM, Joerg Roedel wrote:
>> This patch lets the nested vmrun fail if the L1 hypervisor
>> has not intercepted vmrun. This fixes the "vmrun intercept
>> check" unit test.
>
>> +
>> static bool nested_svm_vmrun(struct vcpu_svm *svm)
>> {
>> struct vmcb *nested_vmcb;
>> @@ -2029,6 +2037,17 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
>> if (!nested_vmcb)
>> return false;
>>
>> + if (!nested_vmcb_checks(nested_vmcb)) {
>> + nested_vmcb->control.exit_code = SVM_EXIT_ERR;
>> + nested_vmcb->control.exit_code_hi = 0;
>> + nested_vmcb->control.exit_info_1 = 0;
>> + nested_vmcb->control.exit_info_2 = 0;
>> +
>> + nested_svm_unmap(page);
>> +
>> + return false;
>> + }
>> +
>
> Don't you have to transfer an injected event to exitintinfo?

APM2 seems to be quiet about this. I just tried it out and event_inj
still contains the event after a failed vmrun on real hardware. This
makes sense because this is no real vmexit because the vm was never
entered.

Joerg

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