Re: [Xen-devel] [PATCH 6/6] Change MMU_PT_UPDATE_RESERVE_AD to support update page table for foreign domain

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 01/06/2009 10:35, "Jiang, Yunhong" <yunhong.jiang@xxxxxxxxx> wrote:

> I think I missed this logic, I just make sure the domain is suspended, but
> seems be wrong because a suspended domain can still be killed and relinquish
> resources. So I will add this logic and resend the patch.
> 
> But I'm not sure if we need make sure the guest is suspended/paused during
> these functions, as exchange a page or pte in flight may cause trouble. Or we
> can leave it to user space tools, since this situation will not damage xen HV
> itself.

The HV should not bother to do the suspend check. It is a higher-level
problem which should be checked by the tools.

 -- Keir



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