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Re: [Xen-devel] Re: how to handle paged hypercall args?
- To: Jan Beulich <JBeulich@xxxxxxxxxx>
- From: Olaf Hering <olaf@xxxxxxxxx>
- Date: Fri, 3 Dec 2010 10:06:29 +0100
- Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir@xxxxxxx>
- Delivery-date: Fri, 03 Dec 2010 01:07:15 -0800
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On Thu, Dec 02, Jan Beulich wrote:
> >>> On 02.12.10 at 11:11, Olaf Hering <olaf@xxxxxxxxx> 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
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