[Qemu-devel] [PATCH 0/2] Add pc-testdev to qemu v6

[Lucas Meneghel Rodrigues <lmr@redhat.com>]

These two patches introduce:

 1) A ISA debugexit port device, that when written, causes qemu
    to exit with the exit code passed as parameter.
 2) A port of the existing testdev present on qemu-kvm to qemu

I took Gerd's recent patch and modified it to include the access-size
property, as well as fixed problems pointed in previous reviews of
the test device itself.

I did notice that with the new test device, a lot of the
kvm-unit-tests are failing. The same tests are passing fine
under qemu-kvm, meaning there are some bugs we need to address.

Example:

qemu-kvm:

$ x86_64-softmmu/qemu-system-x86_64 -device testdev -serial stdio -kernel /path/to/kvm/unittests/pcid.flat
VNC server running on `127.0.0.1:5900'
enabling apic
CPUID consistency: PASS
Test on PCID when disabled: PASS
Test on INVPCID when disabled: PASS
3 tests, 0 failures
$ echo $?
0

qemu:

$ x86_64-softmmu/qemu-system-x86_64 -device pc-testdev -serial stdio -device isa-debugexit,iobase=0xf4,access-size=4 -kernel /path/to/kvm/unittests/pcid.flat
VNC server running on `127.0.0.1:5900'
enabling apic
CPUID consistency: PASS
Test on PCID when disabled: FAIL
Test on INVPCID when disabled: PASS
3 tests, 1 failures
$ echo $?
3


Gerd Hoffmann (1):
  hw: add isa-debug-exit device v3

Lucas Meneghel Rodrigues (1):
  hw: Add test device for unittests execution v6

 hw/debugexit.c        |   73 +++++++++++++++++++++++
 hw/i386/Makefile.objs |    3 +-
 hw/pc-testdev.c       |  156 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 231 insertions(+), 1 deletion(-)
 create mode 100644 hw/debugexit.c
 create mode 100644 hw/pc-testdev.c

-- 
1.7.10.4