qxl: add QXL_IO_FLUSH_{SURFACES,RELEASE} for guest S3&S4 support
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. Signed-off-by: Yonit Halperin <yhalperi@redhat.com> Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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hw/qxl.c
30
hw/qxl.c
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@ -185,6 +185,13 @@ static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
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}
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}
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}
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}
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#if SPICE_INTERFACE_QXL_MINOR >= 1
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static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
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{
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spice_qxl_flush_surfaces_async(&qxl->ssd.qxl, 0);
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}
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#endif
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void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
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void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
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uint32_t count)
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uint32_t count)
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{
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{
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@ -1184,6 +1191,8 @@ static void ioport_write(void *opaque, uint32_t addr, uint32_t val)
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goto async_common;
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goto async_common;
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case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
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case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
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io_port = QXL_IO_DESTROY_ALL_SURFACES;
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io_port = QXL_IO_DESTROY_ALL_SURFACES;
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goto async_common;
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case QXL_IO_FLUSH_SURFACES_ASYNC:
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async_common:
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async_common:
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async = QXL_ASYNC;
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async = QXL_ASYNC;
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qemu_mutex_lock(&d->async_lock);
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qemu_mutex_lock(&d->async_lock);
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@ -1296,6 +1305,27 @@ async_common:
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}
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}
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qxl_spice_destroy_surface_wait(d, val, async);
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qxl_spice_destroy_surface_wait(d, val, async);
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break;
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break;
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#if SPICE_INTERFACE_QXL_MINOR >= 1
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case QXL_IO_FLUSH_RELEASE: {
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QXLReleaseRing *ring = &d->ram->release_ring;
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if (ring->prod - ring->cons + 1 == ring->num_items) {
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fprintf(stderr,
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"ERROR: no flush, full release ring [p%d,%dc]\n",
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ring->prod, ring->cons);
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}
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qxl_push_free_res(d, 1 /* flush */);
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dprint(d, 1, "QXL_IO_FLUSH_RELEASE exit (%s, s#=%d, res#=%d,%p)\n",
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qxl_mode_to_string(d->mode), d->guest_surfaces.count,
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d->num_free_res, d->last_release);
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break;
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}
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case QXL_IO_FLUSH_SURFACES_ASYNC:
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dprint(d, 1, "QXL_IO_FLUSH_SURFACES_ASYNC (%d) (%s, s#=%d, res#=%d)\n",
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val, qxl_mode_to_string(d->mode), d->guest_surfaces.count,
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d->num_free_res);
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qxl_spice_flush_surfaces_async(d);
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break;
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#endif
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case QXL_IO_DESTROY_ALL_SURFACES:
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case QXL_IO_DESTROY_ALL_SURFACES:
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d->mode = QXL_MODE_UNDEFINED;
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d->mode = QXL_MODE_UNDEFINED;
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qxl_spice_destroy_surfaces(d, async);
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qxl_spice_destroy_surfaces(d, async);
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