[PATCH 0/8] xen: cache control improvements

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

Hello,

Following series contain some fixes for cache control operations, the
main focus is to reduce the load on big systems when cache control
operations are executed.

Patches 1-4 are bugfixes, while patches starting from 5 are improvements
to the current code.  Patch 9 is an optimization to avoid having to
broadcast cache flushes on all pCPUs on x86.

Thanks, Roger.

Roger Pau Monne (9):
  x86/pv: fix MMUEXT_FLUSH_CACHE to flush all pCPU caches
  x86/pv: fix emulation of wb{,no}invd to flush all pCPU caches
  xen/gnttab: limit cache flush operation to guests allowed cache
    control
  x86/gnttab: do not implement GNTTABOP_cache_flush
  x86/mtrr: use memory_type_changed() in hvm_set_mem_pinned_cacheattr()
  x86/p2m: limit cache flush in memory_type_changed()
  xen/x86: rename cache_flush_permitted() to has_arch_io_resources()
  xen: introduce flag when a domain requires cache control
  xen/x86: track dirty pCPU caches for a given vCPU

 docs/man/xl.cfg.5.pod.in            | 10 +++++++
 tools/include/libxl.h               |  7 +++++
 tools/libs/light/libxl_create.c     |  6 ++++
 tools/libs/light/libxl_types.idl    |  3 ++
 tools/ocaml/libs/xc/xenctrl.ml      |  1 +
 tools/ocaml/libs/xc/xenctrl.mli     |  1 +
 tools/xl/xl_parse.c                 |  2 ++
 xen/arch/arm/dom0less-build.c       | 12 ++++++--
 xen/arch/arm/domain.c               |  3 +-
 xen/arch/arm/domain_build.c         |  6 ++++
 xen/arch/x86/domain.c               | 43 +++++++++++++++++++++++++++++
 xen/arch/x86/hvm/hvm.c              |  2 +-
 xen/arch/x86/hvm/mtrr.c             | 29 ++++---------------
 xen/arch/x86/hvm/svm/svm.c          |  6 ++--
 xen/arch/x86/hvm/vmx/vmcs.c         |  3 +-
 xen/arch/x86/hvm/vmx/vmx.c          |  6 ++--
 xen/arch/x86/include/asm/domain.h   |  9 ++++++
 xen/arch/x86/include/asm/flushtlb.h | 15 ----------
 xen/arch/x86/include/asm/iocap.h    | 19 ++-----------
 xen/arch/x86/include/asm/p2m.h      |  2 +-
 xen/arch/x86/mm.c                   | 21 ++++----------
 xen/arch/x86/mm/p2m-ept.c           |  7 +----
 xen/arch/x86/mm/p2m-pod.c           |  4 +--
 xen/arch/x86/mm/p2m.c               | 13 ++++++++-
 xen/arch/x86/pv/emul-priv-op.c      | 19 ++++++-------
 xen/arch/x86/setup.c                |  7 +++++
 xen/common/domain.c                 |  3 +-
 xen/common/grant_table.c            | 11 ++++++++
 xen/common/memory.c                 |  2 +-
 xen/include/asm-generic/iocap.h     |  2 +-
 xen/include/public/domctl.h         |  4 ++-
 xen/include/xen/iocap.h             | 25 ++---------------
 xen/include/xen/sched.h             |  6 ++++
 33 files changed, 181 insertions(+), 128 deletions(-)

-- 
2.48.1