On 27/07/15 12:01, Julien Grall wrote:
> On 27/07/15 10:30, David Vrabel wrote:
>> On 25/07/15 00:21, Julien Grall wrote:
>>> On 24/07/2015 12:47, David Vrabel wrote:
>>>> @@ -550,6 +551,11 @@ int alloc_xenballooned_pages(int nr_pages, struct
>>>> page **pages)
>>>> page = balloon_retrieve(true);
>>>> if (page) {
>>>> pages[pgno++] = page;
>>>> +#ifdef CONFIG_XEN_HAVE_PVMMU
>>>> + ret = xen_alloc_p2m_entry(page_to_pfn(page));
>>>
>>> Don't you want to call this function only when the guest is not using
>>> auto-translated physmap?
>>
>> xen_alloc_p2m_entry() is a nop in auto-xlate guests, so no need for an
>> additional check here.
>
> I don't have the impression it's the case or it's not obvious.
Oops. You're right. I'll add a
if (xen_feature(XENFEAT_auto_translated_physmap))
return true;
Check at the top.
David
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