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Re: [Xen-devel] [PATCH] passthrough: fix MSI-X table fixmap allocation


  • To: Qing He <qing.he@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Mon, 16 Feb 2009 09:04:35 +0000
  • Cc:
  • Delivery-date: Mon, 16 Feb 2009 01:05:03 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcmQEsaTj4BAa2NnSNexzx2KCxNl2AAAs/lW
  • Thread-topic: [Xen-devel] [PATCH] passthrough: fix MSI-X table fixmap allocation

On 16/02/2009 08:44, "Qing He" <qing.he@xxxxxxxxx> wrote:

> Currently, msix table pages are allocated a fixmap page per vector,
> the available fixmap pages will be depleted when assigning devices with
> large number of vectors.  This patch fixes it, and a bug that prevents
> cross-page MSI-X table from working properly
> 
> Signed-off-by: Qing He <qing.he@xxxxxxxxx>

How does it fix it? Just a couple of sentences please, which I'll add to the
changeset comment.

 -- Keir



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