[Xen-devel] [PATCH v4 0/8] PVH MTRR initial state

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

Hello,

The following patches set a sane initial MTRR state for both Dom0 and
DomU PVH guests. Note that for Dom0 the host MTRR state is used, OTOH
for DomU the default MTRR type is set to write-back.

This should avoid guests having to setup some kind of MTRR state in
order to boot.

This has been rebased on top of a couple of fixes/improvements from Jan,
which are also included in the series.

Thanks, Roger.

Jan Beulich (2):
  x86/HVM: improve MTRR load checks
  x86/mtrr: split "enabled" field into two boolean flags

Roger Pau Monne (6):
  mtrr: introduce mask to get VCNT from MTRRcap MSR
  hvm/mtrr: add emacs local variables block with formatting info
  hvm/mtrr: use the hardware number of variable ranges for Dom0
  hvm/mtrr: copy hardware state for Dom0
  libxc/pvh: set default MTRR type to write-back
  docs/pvh: document initial MTRR state

 docs/misc/pvh.markdown          |  18 +++++
 tools/libxc/xc_dom_x86.c        |  44 ++++++++++++
 xen/arch/x86/cpu/mtrr/generic.c |  14 ++--
 xen/arch/x86/cpu/mtrr/main.c    |   2 +-
 xen/arch/x86/hvm/hvm.c          |  18 +++--
 xen/arch/x86/hvm/mtrr.c         | 124 +++++++++++++++++++++++++-------
 xen/include/asm-x86/msr-index.h |   4 ++
 xen/include/asm-x86/mtrr.h      |   8 ++-
 8 files changed, 195 insertions(+), 37 deletions(-)

-- 
2.17.1


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