[Xen-ia64-devel] [patch 00/15] ia64: kexec: Map EFI memory in the same location as Linux

[Simon Horman <horms@xxxxxxxxxxxx>]

Hi,

This series is what I believe to be a fairly complete set of patches to map
EFI memory into the same location that Linux does.  The memory is protected
by an RID so that it doesn't conflict with domain memory - which also
protects it from malicious access from HVM domains.

The primary motivation for this is that EFI memory can only be mapped once
- a restriction in the EFI specification. Thus for kexec betwen Xen and
Linux, inluding kdump of Xen (into Linux), EFI memory needs to be mapped in
the same location in both Xen and Linux.


I know these patches have been in the pipeline for a long time.
But they do seem to have stabilised - on my hardware at least - and
I would like to move towards getting them merged.


I have tested these patches on a Tiger 4 and RX 2620.

I recommend testing these patches using:

  Xen
  http://xenbits.xensource.com/ext/ia64/xen-unstbale.hg
  Revision: 17161:71a8366fb212

  Linux-Xen
  http://xenbits.xensource.com/ext/ia64/linux-2.6.18-xen.hg
  Revision: 457:68e78169679e

  Kexec-Tools
  git://git.kernel.org/pub/scm/linux/kernel/git/horms/kexec-tools-testing.git
  Revision: 94afdd9f7ab2b07997f80a297741842f9cdbdc25

  Linux
  Revision: 2.6.25-rc3

-- 
Horms


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