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Re: [Xen-devel] [PATCH] x86/hvm: determine shared info format earlier

  • To: Jan Beulich <jbeulich@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Tue, 15 May 2007 07:59:40 +0100
  • Delivery-date: Mon, 14 May 2007 23:56:06 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceWvpt92gNeWwKxEdy09AAWy6hiGQ==
  • Thread-topic: [Xen-devel] [PATCH] x86/hvm: determine shared info format earlier

On 14/5/07 16:23, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> Latch guest shared info format when hypercall page is being set up rather
> than during an arbitrarily selected hypercall.
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

I don't think this works since the PV drivers don't re-create the hypercall
page after save/restore (bad us!).

We could sample the execution mode in *both* places (new and old)?

 -- Keir

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