qemu/backends
Alex Bennée e1a0e635c9 backends/vhost-user: remove the ioeventfd check
While ioeventfds are needed for good performance with KVM guests it
should not be a gating requirement. We can run vhost-user backends using
simulated ioeventfds or inband signalling.

With this change I can run:

  $QEMU $OPTS \
    -display gtk,gl=on \
    -device vhost-user-gpu-pci,chardev=vhgpu \
    -chardev socket,id=vhgpu,path=vhgpu.sock

with:

  ./contrib/vhost-user-gpu/vhost-user-gpu \
    -s vhgpu.sock \
    -v

and at least see things start-up - although the display gets rotated by
180 degrees. Once lightdm takes over we never make it to the login
prompt and just get a blank screen.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20221202132231.1048669-1-alex.bennee@linaro.org>

Message-Id: <20230130124728.175610-1-alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-03-02 03:10:47 -05:00
..
tpm Drop duplicate #include 2023-02-08 07:28:05 +01:00
confidential-guest-support.c
cryptodev-builtin.c virtio-crypto: Support asynchronous mode 2022-11-02 06:56:32 -04:00
cryptodev-lkcf.c cryptodev: Add a lkcf-backend for cryptodev 2022-11-02 06:56:32 -04:00
cryptodev-vhost-user.c virtio-crypto: Support asynchronous mode 2022-11-02 06:56:32 -04:00
cryptodev-vhost.c error: Drop superfluous #include "qapi/qmp/qerror.h" 2023-02-23 13:56:14 +01:00
cryptodev.c virtio-crypto: Support asynchronous mode 2022-11-02 06:56:32 -04:00
dbus-vmstate1.xml docs: move D-Bus VMState documentation to source XML 2021-12-21 10:50:21 +04:00
dbus-vmstate.c dbus-vmstate: Restrict error checks to registered proxies in dbus_get_proxies 2022-08-18 10:35:44 +04:00
hostmem-epc.c Fix non-first inclusions of qemu/osdep.h 2023-02-08 07:28:05 +01:00
hostmem-file.c include: Move qemu_madvise() and related #defines to new qemu/madvise.h 2022-02-21 13:30:20 +00:00
hostmem-memfd.c hostmem: Wire up RAM_NORESERVE via "reserve" property 2021-06-15 20:27:38 +02:00
hostmem-ram.c hostmem: Wire up RAM_NORESERVE via "reserve" property 2021-06-15 20:27:38 +02:00
hostmem.c hostmem: Honor multiple preferred nodes if possible 2022-12-28 14:59:55 +01:00
Kconfig
meson.build cryptodev: Add a lkcf-backend for cryptodev 2022-11-02 06:56:32 -04:00
rng-builtin.c
rng-egd.c backends: Improve error messages when property can no longer be set 2022-10-27 07:56:56 +02:00
rng-random.c backends: Improve error messages when property can no longer be set 2022-10-27 07:56:56 +02:00
rng.c error: Drop superfluous #include "qapi/qmp/qerror.h" 2023-02-23 13:56:14 +01:00
trace-events docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
trace.h
vhost-user.c backends/vhost-user: remove the ioeventfd check 2023-03-02 03:10:47 -05:00