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qemu/0502-spice-make-number-of-surfaces-runtime-configurable.patch
Cole Robinson 9290838132 Fix boot hang if console is not connected (bz #894451) 
Fix segfault with zero length virtio-scsi disk (bz #847549)
2013-02-02 15:47:37 -05:00

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From 0d67ff8e7dee8babc61c939946836cc8c74b05b1 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Tue, 4 Sep 2012 11:39:41 +0200
Subject: [PATCH] spice: make number of surfaces runtime-configurable.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
hw/qxl.c | 31 +++++++++++++++++--------------
hw/qxl.h | 3 +--
ui/spice-display.c | 5 ++++-
ui/spice-display.h | 3 +--
4 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/hw/qxl.c b/hw/qxl.c
index 20e844f..c7b4e9a 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -238,7 +238,8 @@ static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
{
trace_qxl_spice_destroy_surfaces_complete(qxl->id);
qemu_mutex_lock(&qxl->track_lock);
- memset(&qxl->guest_surfaces.cmds, 0, sizeof(qxl->guest_surfaces.cmds));
+ memset(qxl->guest_surfaces.cmds, 0,
+ sizeof(qxl->guest_surfaces.cmds) * qxl->ssd.num_surfaces);
qxl->guest_surfaces.count = 0;
qemu_mutex_unlock(&qxl->track_lock);
}
@@ -347,7 +348,7 @@ static void init_qxl_rom(PCIQXLDevice *d)
rom->slot_id_bits = MEMSLOT_SLOT_BITS;
rom->slots_start = 1;
rom->slots_end = NUM_MEMSLOTS - 1;
- rom->n_surfaces = cpu_to_le32(NUM_SURFACES);
+ rom->n_surfaces = cpu_to_le32(d->ssd.num_surfaces);
for (i = 0, n = 0; i < ARRAY_SIZE(qxl_modes); i++) {
fb = qxl_modes[i].y_res * qxl_modes[i].stride;
@@ -451,9 +452,9 @@ static int qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
}
uint32_t id = le32_to_cpu(cmd->surface_id);
- if (id >= NUM_SURFACES) {
+ if (id >= qxl->ssd.num_surfaces) {
qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
- NUM_SURFACES);
+ qxl->ssd.num_surfaces);
return 1;
}
qemu_mutex_lock(&qxl->track_lock);
@@ -529,7 +530,7 @@ static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
info->internal_groupslot_id = 0;
info->qxl_ram_size = le32_to_cpu(qxl->shadow_rom.num_pages) << TARGET_PAGE_BITS;
- info->n_surfaces = NUM_SURFACES;
+ info->n_surfaces = qxl->ssd.num_surfaces;
}
static const char *qxl_mode_to_string(int mode)
@@ -1438,7 +1439,7 @@ async_common:
QXLCookie *cookie = NULL;
QXLRect update = d->ram->update_area;
- if (d->ram->update_surface > NUM_SURFACES) {
+ if (d->ram->update_surface > d->ssd.num_surfaces) {
qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
d->ram->update_surface);
return;
@@ -1538,7 +1539,7 @@ async_common:
}
break;
case QXL_IO_DESTROY_SURFACE_WAIT:
- if (val >= NUM_SURFACES) {
+ if (val >= d->ssd.num_surfaces) {
qxl_set_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
"%" PRIu64 " >= NUM_SURFACES", async, val);
goto cancel_async;
@@ -1717,7 +1718,7 @@ static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
vram_start = (uintptr_t)memory_region_get_ram_ptr(&qxl->vram_bar);
/* dirty the off-screen surfaces */
- for (i = 0; i < NUM_SURFACES; i++) {
+ for (i = 0; i < qxl->ssd.num_surfaces; i++) {
QXLSurfaceCmd *cmd;
intptr_t surface_offset;
int surface_size;
@@ -1845,7 +1846,6 @@ static int qxl_init_common(PCIQXLDevice *qxl)
qxl->mode = QXL_MODE_UNDEFINED;
qxl->generation = 1;
qxl->num_memslots = NUM_MEMSLOTS;
- qxl->num_surfaces = NUM_SURFACES;
qemu_mutex_init(&qxl->track_lock);
qemu_mutex_init(&qxl->async_lock);
qxl->current_async = QXL_UNDEFINED_IO;
@@ -1887,6 +1887,7 @@ static int qxl_init_common(PCIQXLDevice *qxl)
init_qxl_rom(qxl);
init_qxl_ram(qxl);
+ qxl->guest_surfaces.cmds = g_new0(QXLPHYSICAL, qxl->ssd.num_surfaces);
memory_region_init_ram(&qxl->vram_bar, "qxl.vram", qxl->vram_size);
vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
memory_region_init_alias(&qxl->vram32_bar, "qxl.vram32", &qxl->vram_bar,
@@ -2053,8 +2054,8 @@ static int qxl_post_load(void *opaque, int version)
qxl_create_guest_primary(d, 1, QXL_SYNC);
/* replay surface-create and cursor-set commands */
- cmds = g_malloc0(sizeof(QXLCommandExt) * (NUM_SURFACES + 1));
- for (in = 0, out = 0; in < NUM_SURFACES; in++) {
+ cmds = g_malloc0(sizeof(QXLCommandExt) * (d->ssd.num_surfaces + 1));
+ for (in = 0, out = 0; in < d->ssd.num_surfaces; in++) {
if (d->guest_surfaces.cmds[in] == 0) {
continue;
}
@@ -2154,9 +2155,10 @@ static VMStateDescription qxl_vmstate = {
qxl_memslot, struct guest_slots),
VMSTATE_STRUCT(guest_primary.surface, PCIQXLDevice, 0,
qxl_surface, QXLSurfaceCreate),
- VMSTATE_INT32_EQUAL(num_surfaces, PCIQXLDevice),
- VMSTATE_ARRAY(guest_surfaces.cmds, PCIQXLDevice, NUM_SURFACES, 0,
- vmstate_info_uint64, uint64_t),
+ VMSTATE_INT32_EQUAL(ssd.num_surfaces, PCIQXLDevice),
+ VMSTATE_VARRAY_INT32(guest_surfaces.cmds, PCIQXLDevice,
+ ssd.num_surfaces, 0,
+ vmstate_info_uint64, uint64_t),
VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
VMSTATE_END_OF_LIST()
},
@@ -2184,6 +2186,7 @@ static Property qxl_properties[] = {
DEFINE_PROP_UINT32("vram_size_mb", PCIQXLDevice, vram32_size_mb, -1),
DEFINE_PROP_UINT32("vram64_size_mb", PCIQXLDevice, vram_size_mb, -1),
DEFINE_PROP_UINT32("vgamem_mb", PCIQXLDevice, vgamem_size_mb, 16),
+ DEFINE_PROP_INT32("surfaces", PCIQXLDevice, ssd.num_surfaces, 1024),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/qxl.h b/hw/qxl.h
index 9cfedb7..5553824 100644
--- a/hw/qxl.h
+++ b/hw/qxl.h
@@ -40,7 +40,6 @@ typedef struct PCIQXLDevice {
uint32_t revision;
int32_t num_memslots;
- int32_t num_surfaces;
uint32_t current_async;
QemuMutex async_lock;
@@ -65,7 +64,7 @@ typedef struct PCIQXLDevice {
} guest_primary;
struct surfaces {
- QXLPHYSICAL cmds[NUM_SURFACES];
+ QXLPHYSICAL *cmds;
uint32_t count;
uint32_t max;
} guest_surfaces;
diff --git a/ui/spice-display.c b/ui/spice-display.c
index 1c31418..99bc665 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -317,6 +317,9 @@ void qemu_spice_display_init_common(SimpleSpiceDisplay *ssd, DisplayState *ds)
qemu_mutex_init(&ssd->lock);
ssd->mouse_x = -1;
ssd->mouse_y = -1;
+ if (ssd->num_surfaces == 0) {
+ ssd->num_surfaces = 1024;
+ }
ssd->bufsize = (16 * 1024 * 1024);
ssd->buf = g_malloc(ssd->bufsize);
}
@@ -427,7 +430,7 @@ static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
info->num_memslots_groups = NUM_MEMSLOTS_GROUPS;
info->internal_groupslot_id = 0;
info->qxl_ram_size = ssd->bufsize;
- info->n_surfaces = NUM_SURFACES;
+ info->n_surfaces = ssd->num_surfaces;
}
static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
diff --git a/ui/spice-display.h b/ui/spice-display.h
index bcff114..512ab78 100644
--- a/ui/spice-display.h
+++ b/ui/spice-display.h
@@ -32,8 +32,6 @@
#define MEMSLOT_GROUP_GUEST 1
#define NUM_MEMSLOTS_GROUPS 2
-#define NUM_SURFACES 1024
-
/*
* Internal enum to differenciate between options for
* io calls that have a sync (old) version and an _async (new)
@@ -80,6 +78,7 @@ struct SimpleSpiceDisplay {
QXLInstance qxl;
uint32_t unique;
QemuPfConv *conv;
+ int32_t num_surfaces;
QXLRect dirty;
int notify;
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