linux-kernel - Re: [PATCH 08/11] Add "wait for page" hypercall.

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Message-ID: <4AEED907.5030306@redhat.com>
Date:	Mon, 02 Nov 2009 15:05:11 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Gleb Natapov <gleb@...hat.com>
CC:	kvm@...r.kernel.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 08/11] Add "wait for page" hypercall.

On 11/01/2009 01:56 PM, Gleb Natapov wrote:
> We want to be able to inject async pagefault into guest event if a guest
> is not executing userspace code. But in this case guest may receive
> async page fault in non-sleepable context. In this case it will be
> able to make "wait for page" hypercall vcpu will be put to sleep until
> page is swapped in and guest can continue without reschedule.
>    

What's wrong with just 'hlt' and checking in the guest?

-- 
error compiling committee.c: too many arguments to function

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