[Qemu-devel] [PATCH v2 0/8] uq/master: TPR access optimization for Windows guests

[Jan Kiszka <jan.kiszka@siemens.com>]

Here is v2 of the TPR access optimization. Changes:
 - plug race between patching and running VCPUs accessing the same TPR
   instruction by stopping VCPUs during patch process
 - realized forward/backward check in evaluate_tpr_instruction via a
   table but kept patch_instruction as is (too much variations for a
   table-driven approach)
 - dropped smp_cpus == 1 special case from get_kpcr_number
 - fixed comment why R/W ROM alias has to be page-aligned

The series is also available at

    git://git.kiszka.org/qemu-kvm.git queues/kvm-tpr

Please review/apply.

CC: Paolo Bonzini <pbonzini@redhat.com>

Jan Kiszka (8):
  kvm: Set cpu_single_env only once
  Allow to use pause_all_vcpus from VCPU context
  target-i386: Add infrastructure for reporting TPR MMIO accesses
  kvmvapic: Add option ROM
  kvmvapic: Introduce TPR access optimization for Windows guests
  kvmvapic: Simplify mp/up_set_tpr
  optionsrom: Reserve space for checksum
  kvmvapic: Use optionrom helpers

 .gitignore                    |    1 +
 Makefile                      |    2 +-
 Makefile.target               |    3 +-
 cpu-all.h                     |    3 +-
 cpus.c                        |   13 +
 hw/apic.c                     |  126 ++++++-
 hw/apic.h                     |    2 +
 hw/apic_common.c              |   68 ++++-
 hw/apic_internal.h            |   27 ++
 hw/kvm/apic.c                 |   32 ++
 hw/kvmvapic.c                 |  774 +++++++++++++++++++++++++++++++++++++++++
 kvm-all.c                     |    5 -
 pc-bios/optionrom/Makefile    |    2 +-
 pc-bios/optionrom/kvmvapic.S  |  335 ++++++++++++++++++
 pc-bios/optionrom/optionrom.h |    3 +-
 target-i386/cpu.h             |    9 +
 target-i386/helper.c          |   19 +
 target-i386/kvm.c             |   24 ++-
 18 files changed, 1423 insertions(+), 25 deletions(-)
 create mode 100644 hw/kvmvapic.c
 create mode 100644 pc-bios/optionrom/kvmvapic.S

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1.7.3.4