[Xen-devel] [PATCH 0/5] x86: Remove vestigal PV Autotranslate pieces

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

Autotranslate PV domains haven't been able to be built for two releases of
Xen, and noone has noticed.  The shadow emulation code for such domains has
never functioned correctly for guests running in a mode different to Xen.

This isn't as much cleanup as I intended to do, but it turns out that I pulled
a little too hard on a thread, and everything fell to pieces.  This reduced
series has had moderate testing within XenServer, and everything still appears
to be fine.

Toolstack and PVH folk: There is also toolstack side cleanup which can be
done, but the concept of a translated PV guest is also used for PVHv1.  I have
some extra deletion to contribute to whomever rips PVHv1 out of the domain
builder.

Andrew Cooper (5):
  x86/traps: Drop paging_mode_external() handling from the PV pagefault path
  x86/shadow: Tweak some initialisation in sh_page_fault()
  x86/paging: Enforce PG_external == PG_translate == PG_refcounts
  x86/shadow: Drop all emulation for PV vcpus
  x86/shadow: Misc minor cleanup

 xen/arch/x86/mm/paging.c        |  19 ++++---
 xen/arch/x86/mm/shadow/common.c | 112 +++++++---------------------------------
 xen/arch/x86/mm/shadow/multi.c  |  46 ++++-------------
 xen/arch/x86/traps.c            |  16 ++----
 xen/include/asm-x86/paging.h    |   9 +++-
 5 files changed, 55 insertions(+), 147 deletions(-)

-- 
2.1.4


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