Il 20/08/2014 08:59, Wanpeng Li ha scritto:
>
> + /*
> + * Failing the vm entry is _not_ what the processor does
> + * but it's basically the only possibility we have.
* We could still enter the guest if CR8 load exits are
* enabled, CR8 store exits are enabled, a
Hi Paolo,
On Tue, Aug 19, 2014 at 10:34:20AM +0200, Paolo Bonzini wrote:
>Il 19/08/2014 10:30, Wanpeng Li ha scritto:
>> +if (vmx->nested.virtual_apic_page)
>> +nested_release_page(vmx->nested.virtual_apic_page);
>> +vmx->nested.virtual_apic_page =
>> +
Il 19/08/2014 10:30, Wanpeng Li ha scritto:
> + if (vmx->nested.virtual_apic_page)
> + nested_release_page(vmx->nested.virtual_apic_page);
> + vmx->nested.virtual_apic_page =
> +nested_get_page(vcpu, vmcs12->virtual_apic_page_addr);
> +
This patch fix bug https://bugzilla.kernel.org/show_bug.cgi?id=61411
TPR shadow/threshold feature is important to speed up the Windows guest.
Besides, it is a must feature for certain VMM.
We map virtual APIC page address and TPR threshold from L1 VMCS. If
TPR_BELOW_THRESHOLD VM exit is triggered
