From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: Re: how to handle paged hypercall args?
Date: Fri, 3 Dec 2010 10:06:29 +0100
Message-ID: <20101203090629.GB6055@aepfle.de>
References: <C909B8B7.2817A%keir@xen.org> <C90ACD8F.A6E9%keir@xen.org>
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To: Jan Beulich <JBeulich@novell.com>
Cc: xen-devel@lists.xensource.com, Keir Fraser <keir@xen.org>
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On Thu, Dec 02, Jan Beulich wrote:

> >>> On 02.12.10 at 11:11, Olaf Hering <olaf@aepfle.de> wrote:
> > On Thu, Nov 18, Keir Fraser wrote:
> > 
> >> I've done something along these lines now as xen-unstable:22402. It actually
> >> seems to work okay! So you can go ahead and use waitqueues in __hvm_copy()
> >> now.
> > 
> > This is my first attempt to do it.
> 
> I didn't look in detail whether that's being done in a non-intuitive
> way elsewhere, but I can't see how the event you're waiting on
> would ever get signaled - wouldn't you need to pass it into
> __hvm_copy() and further down from there?

I was relying on the kind-of wakeup in p2m_mem_paging_resume().

There will be a new patch shortly.

Olaf