On 24/11/2017 10:53, gengdongjiu wrote:
>>> When hardware detects a memory error on a stage2 page table page
>> The stage2 page tables are not guest application page table, those are
>> hypervisor page tables. In that case, indeed the host would kill the guest.
> thanks for the reply.
> yes, For the stage2. guest should be killed.
> what about the stage 1, I have sent another mail to discuss the stage1 guest page table fault.
>
What mail is it?
For stage1, the guest will get an AR machine check and cross its fingers:
/*
* Error hit kernel page.
* Do nothing, try to be lucky and not touch this instead. For a few cases we
* could be more sophisticated.
*/
static int me_kernel(struct page *p, unsigned long pfn)
{
return MF_IGNORED;
}
Thanks,
Paolo
