[Qemu-devel] [PATCH v5 0/5] KVM flash memory support

[Jordan Justen <jordan.l.justen@intel.com>]

git://github.com/jljusten/qemu.git kvm-flash-v5

Utilize KVM_CAP_READONLY_MEM to support PC system flash emulation
with KVM.

v5:
 * Remove patch to pflash_cfi01 which enabled readonly mode
 * Adjust kvm code to use KVM READONLY support for ranges that
   either have the readonly flag set, or for devices with
   readable set.

v4:
 * With a machine type of isapc, don't mark the BIOS as read-only.
   isapc + seabios will not boot if the BIOS is read-only. This
   matches the current behavior of isapc with KVM, which is the
   only mode under which isapc currently works.

v3:
 * Squash patch 2 & 3 based on Xiao's feedback that what I
   was calling a 'workaround' in patch 3 was actually what
   is required by the KVM READONLY memory support.

v2:
 * Remove rom_only from PC_COMPAT_1_4
 * Only enable flash when a pflash drive is created.

Jordan Justen (5):
  isapc: Fix non-KVM qemu boot (read/write memory for isapc BIOS)
  kvm: add kvm_readonly_mem_enabled
  kvm: support using KVM_MEM_READONLY flag for regions
  pc_sysfw: allow flash (-pflash) memory to be used with KVM
  pc_sysfw: change rom_only default to 0

 hw/block/pc_sysfw.c  |   64 ++++++++++++++++++++++++++++++++------------------
 hw/i386/pc_piix.c    |    5 ++++
 include/hw/i386/pc.h |    4 ----
 include/sysemu/kvm.h |   10 ++++++++
 kvm-all.c            |   44 +++++++++++++++++++++++++++-------
 kvm-stub.c           |    1 +
 6 files changed, 92 insertions(+), 36 deletions(-)

-- 
1.7.10.4