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[Xen-devel] Re: [PATCH] calling zap_low_mappings breaks xen boot on the es7000

  • To: "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • Date: Sat, 19 May 2007 09:19:56 +0100
  • Delivery-date: Sat, 19 May 2007 01:16:21 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AceWvpt92gNeWwKxEdy09AAWy6hiGQCvyjGgABwt3Ps=
  • Thread-topic: [PATCH] calling zap_low_mappings breaks xen boot on the es7000

Either we should just delay the zap_low_mappings() call, or fix your code to
map_domain_page()/unmap_domain_page(). How late in boot do you need the low

 -- Keir

On 18/5/07 20:20, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx> wrote:

> All,
> Changeset 15044 fixes zap_low_mappings, and calls it from setup.c if on
> a x86_64 box.
> This zaps some of the memory the ES7000 uses to talk to the Server
> Control (to setup APICs, for instance).
> This patch executes the zap_low_mappings only if not on an ES7000.
> Signed-off-by: Rajagopalan Subrahmanian <raj.subrahmanian@xxxxxxxxxx>
> Thanks
> Raj

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