On 2/3/26 12:56 PM, Pierrick Bouvier wrote:
This series eliminates target specifics in hw/virtio and replace them with
runtime functions where needed.
Performance has been measured with this automated fio benchmark, with
original instructions from Stefan [1].
$ git clone https://github.com/pbo-linaro/qemu-linux-stack -b
x86_64_io_benchmark
$ cd qemu-linux-stack
$ ./build.sh
$ ./run.sh /path/to/qemu-system-x86_64
[1] https://lore.kernel.org/qemu-devel/20260202185233.GC405548@fedora/
Results are on 20 runs and expressed in kIOPS:
reference: mean=239.2 std_dev=3.48
with_series: mean=238.5 std_dev=3.46
Performance is on par, and within standard deviation.
v4
--
- Include Philippe patches computing once device endianness to skip runtime
checks on every access.
Philippe Mathieu-Daudé (3):
hw/virtio: Constify virtio_is_big_endian() argument
hw/virtio: Introduce VirtIODevice::access_is_big_endian boolean field
hw/virtio: Use VirtIODevice::access_is_big_endian field
Pierrick Bouvier (6):
target-info: add target_base_ppc, target_ppc and target_ppc64
include/hw/virtio/virtio-access.h: remove target specifics define
include/hw/ppc/spapr: extract SPAPR_MAX_RAM_SLOTS in a new header
hw/virtio/vhost-user: make compilation unit common
hw/virtio/virtio-qmp: make compilation unit common
hw/virtio/: make all compilation units common
include/hw/ppc/spapr.h | 8 +---
include/hw/ppc/spapr_common.h | 16 +++++++
include/hw/virtio/virtio-access.h | 50 +++++++++++-----------
include/hw/virtio/virtio.h | 7 +++-
include/qemu/target-info.h | 21 ++++++++++
hw/virtio/vhost-user.c | 11 ++---
hw/virtio/virtio-qmp.c | 70 -------------------------------
hw/virtio/virtio.c | 5 ++-
target-info.c | 21 ++++++++++
hw/virtio/meson.build | 17 ++++----
10 files changed, 104 insertions(+), 122 deletions(-)
create mode 100644 include/hw/ppc/spapr_common.h
Sent v5 fixing the issue found:
https://lore.kernel.org/qemu-devel/[email protected]/T/#t
Regards,
Pierrick
