Re: [PATCH v4 11/12] Let host know whether the guest can handle asyncPF in non-userspace context.

From: Rik van Riel
Date: Thu Jul 08 2010 - 00:28:48 EST


On 07/06/2010 12:24 PM, Gleb Natapov wrote:
If guest can detect that it runs in non-preemptable context it can
handle async PFs at any time, so let host know that it can send async
PF even if guest cpu is not in userspace.

The code looks correct. One question though - is there a
reason to implement the userspace-only async PF path at
all, since the handling of async PF in non-userspace context
is introduced simultaneously?

Signed-off-by: Gleb Natapov<gleb@xxxxxxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

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