Il 07/05/2013 19:15, Jordan Justen ha scritto: > git://github.com/jljusten/qemu.git kvm-flash-v4 > > Utilize KVM_CAP_READONLY_MEM to support PC system flash emulation > with KVM. > > 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.
Thanks for looking at it! Patch 1 should definitely be 1.5 material. At this point it is late for 1.5 and I found a small problem in patch 3, so let's defer it. However, I'm thinking of reverting commit 9953f8822 in 1.5. Yes, it's a bugfix but the change is only visible in TCG and having three modes in three versions is uselessly complicated. Paolo > 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 (6): > 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 readonly regions > pflash_cfi01: memory region should be set to enable readonly mode > 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/block/pflash_cfi01.c | 2 ++ > hw/i386/pc_piix.c | 5 ++++ > include/hw/i386/pc.h | 4 --- > include/sysemu/kvm.h | 10 ++++++++ > kvm-all.c | 42 ++++++++++++++++++++++++------- > kvm-stub.c | 1 + > 7 files changed, 92 insertions(+), 36 deletions(-) >
