[Xen-devel] [PATCH 1/8] x86: give FIX_EFI_MPF its own fixmap entry

[David Vrabel]

On 09/04/13 08:27, Jan Beulich wrote:
>>>> On 08.04.13 at 20:59, David Vrabel <david.vrabel at citrix.com> wrote:
>> FIX_EFI_MPF was the same as FIX_KEXEC_BASE_0 which is going away.  So
>> add its own entry.
> 
> To be honest, no matter how small the wastage, I'd prefer reusing
> another entry over creating a new one. FIX_TBOOT_MAP_ADDRESS
> seems like a reasonable fit (which we also don't have to expect to
> go away, unless tboot support would get ripped out altogether).
> This is not the least because sane UEFI systems aren't expected to
> have MPS tables anyway (i.e. the entry, if separate, would likely
> _never_ be used in reality), it's just that the specification allows for
> it.

This patch added one entry and patch 5 removes 68 entries so this series
is a big gain as is.  It doesn't seem productive to further improve this
at this time.

David