@@ -185,6 +185,13 @@ static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
}
}
+#if SPICE_INTERFACE_QXL_MINOR >= 1
+static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
+{
+ qxl->ssd.worker->flush_surfaces_async(qxl->ssd.worker, 0);
+}
+#endif
+
void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
uint32_t count)
{
@@ -1190,6 +1197,8 @@ static void ioport_write(void *opaque, uint32_t addr, uint32_t val)
goto async_common;
case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
io_port = QXL_IO_DESTROY_ALL_SURFACES;
+ goto async_common;
+ case QXL_IO_FLUSH_SURFACES_ASYNC:
async_common:
async = QXL_ASYNC;
qemu_mutex_lock(&d->async_lock);
@@ -1302,6 +1311,27 @@ async_common:
}
qxl_spice_destroy_surface_wait(d, val, async);
break;
+#if SPICE_INTERFACE_QXL_MINOR >= 1
+ case QXL_IO_FLUSH_RELEASE: {
+ QXLReleaseRing *ring = &d->ram->release_ring;
+ if (ring->prod - ring->cons + 1 == ring->num_items) {
+ fprintf(stderr,
+ "ERROR: no flush, full release ring [p%d,%dc]\n",
+ ring->prod, ring->cons);
+ }
+ qxl_push_free_res(d, 1 /* flush */);
+ dprint(d, 1, "QXL_IO_FLUSH_RELEASE exit (%s, s#=%d, res#=%d,%p)\n",
+ qxl_mode_to_string(d->mode), d->guest_surfaces.count,
+ d->num_free_res, d->last_release);
+ break;
+ }
+ case QXL_IO_FLUSH_SURFACES_ASYNC:
+ dprint(d, 1, "QXL_IO_FLUSH_SURFACES_ASYNC (%d) (%s, s#=%d, res#=%d)\n",
+ val, qxl_mode_to_string(d->mode), d->guest_surfaces.count,
+ d->num_free_res);
+ qxl_spice_flush_surfaces_async(d);
+ break;
+#endif
case QXL_IO_DESTROY_ALL_SURFACES:
d->mode = QXL_MODE_UNDEFINED;
qxl_spice_destroy_surfaces(d, async);
Add two new IOs. QXL_IO_FLUSH_SURFACES - equivalent to update area for all surfaces, used to reduce vmexits from NumSurfaces to 1 on guest S3, S4 and resolution change (windows driver implementation is such that this is done on each of those occasions). QXL_IO_FLUSH_RELEASE - used to ensure anything on last_release is put on the release ring for the client to free. Cc: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Alon Levy <alevy@redhat.com> --- hw/qxl.c | 30 ++++++++++++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-)