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Re: [Xen-devel] Xen 3.1.2 can corrupt BIOS resevered memory between 1M and 16M.

  • To: Kimball Murray <kimball.murray@xxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Fri, 14 Dec 2007 23:48:54 +0000
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Fri, 14 Dec 2007 15:42:51 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acg+q+J5ISCFIqqfEdyYUQAWy6hiGQ==
  • Thread-topic: [Xen-devel] Xen 3.1.2 can corrupt BIOS resevered memory between 1M and 16M.
On 14/12/07 20:35, "Kimball Murray" <kimball.murray@xxxxxxxxx> wrote:

> So the first time through the loop, s == 1M and e == 15M.  But map_s
> gets set to 16M and then we slip into the if statement and call
> init_boot_pages with (1M, 16M), crushing the BIOS hole.

Thanks for the analysis. I'll sort out a fix and get back to you.

 -- Keir



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