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qemu/hw/qxl.c
Markus Armbruster 6b7332eb40 qxl: Slot sanity check in qxl_phys2virt() is off by one, fix 
Spotted by Coverity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-01-17 16:30:57 +01:00

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/*
* Copyright (C) 2010 Red Hat, Inc.
*
* written by Yaniv Kamay, Izik Eidus, Gerd Hoffmann
* maintained by Gerd Hoffmann <kraxel@redhat.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu-common.h"
#include "qemu-timer.h"
#include "qemu-queue.h"
#include "monitor.h"
#include "sysemu.h"
#include "qxl.h"
#undef SPICE_RING_PROD_ITEM
#define SPICE_RING_PROD_ITEM(r, ret) { \
typeof(r) start = r; \
typeof(r) end = r + 1; \
uint32_t prod = (r)->prod & SPICE_RING_INDEX_MASK(r); \
typeof(&(r)->items[prod]) m_item = &(r)->items[prod]; \
if (!((uint8_t*)m_item >= (uint8_t*)(start) && (uint8_t*)(m_item + 1) <= (uint8_t*)(end))) { \
abort(); \
} \
ret = &m_item->el; \
}
#undef SPICE_RING_CONS_ITEM
#define SPICE_RING_CONS_ITEM(r, ret) { \
typeof(r) start = r; \
typeof(r) end = r + 1; \
uint32_t cons = (r)->cons & SPICE_RING_INDEX_MASK(r); \
typeof(&(r)->items[cons]) m_item = &(r)->items[cons]; \
if (!((uint8_t*)m_item >= (uint8_t*)(start) && (uint8_t*)(m_item + 1) <= (uint8_t*)(end))) { \
abort(); \
} \
ret = &m_item->el; \
}
#undef ALIGN
#define ALIGN(a, b) (((a) + ((b) - 1)) & ~((b) - 1))
#define PIXEL_SIZE 0.2936875 //1280x1024 is 14.8" x 11.9"
#define QXL_MODE(_x, _y, _b, _o) \
{ .x_res = _x, \
.y_res = _y, \
.bits = _b, \
.stride = (_x) * (_b) / 8, \
.x_mili = PIXEL_SIZE * (_x), \
.y_mili = PIXEL_SIZE * (_y), \
.orientation = _o, \
}
#define QXL_MODE_16_32(x_res, y_res, orientation) \
QXL_MODE(x_res, y_res, 16, orientation), \
QXL_MODE(x_res, y_res, 32, orientation)
#define QXL_MODE_EX(x_res, y_res) \
QXL_MODE_16_32(x_res, y_res, 0), \
QXL_MODE_16_32(y_res, x_res, 1), \
QXL_MODE_16_32(x_res, y_res, 2), \
QXL_MODE_16_32(y_res, x_res, 3)
static QXLMode qxl_modes[] = {
QXL_MODE_EX(640, 480),
QXL_MODE_EX(800, 480),
QXL_MODE_EX(800, 600),
QXL_MODE_EX(832, 624),
QXL_MODE_EX(960, 640),
QXL_MODE_EX(1024, 600),
QXL_MODE_EX(1024, 768),
QXL_MODE_EX(1152, 864),
QXL_MODE_EX(1152, 870),
QXL_MODE_EX(1280, 720),
QXL_MODE_EX(1280, 760),
QXL_MODE_EX(1280, 768),
QXL_MODE_EX(1280, 800),
QXL_MODE_EX(1280, 960),
QXL_MODE_EX(1280, 1024),
QXL_MODE_EX(1360, 768),
QXL_MODE_EX(1366, 768),
QXL_MODE_EX(1400, 1050),
QXL_MODE_EX(1440, 900),
QXL_MODE_EX(1600, 900),
QXL_MODE_EX(1600, 1200),
QXL_MODE_EX(1680, 1050),
QXL_MODE_EX(1920, 1080),
#if VGA_RAM_SIZE >= (16 * 1024 * 1024)
/* these modes need more than 8 MB video memory */
QXL_MODE_EX(1920, 1200),
QXL_MODE_EX(1920, 1440),
QXL_MODE_EX(2048, 1536),
QXL_MODE_EX(2560, 1440),
QXL_MODE_EX(2560, 1600),
#endif
#if VGA_RAM_SIZE >= (32 * 1024 * 1024)
/* these modes need more than 16 MB video memory */
QXL_MODE_EX(2560, 2048),
QXL_MODE_EX(2800, 2100),
QXL_MODE_EX(3200, 2400),
#endif
};
static PCIQXLDevice *qxl0;
static void qxl_send_events(PCIQXLDevice *d, uint32_t events);
static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async);
static void qxl_reset_memslots(PCIQXLDevice *d);
static void qxl_reset_surfaces(PCIQXLDevice *d);
static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
void qxl_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
{
#if SPICE_INTERFACE_QXL_MINOR >= 1
qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
#endif
if (qxl->guestdebug) {
va_list ap;
va_start(ap, msg);
fprintf(stderr, "qxl-%d: guest bug: ", qxl->id);
vfprintf(stderr, msg, ap);
fprintf(stderr, "\n");
va_end(ap);
}
}
void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
struct QXLRect *area, struct QXLRect *dirty_rects,
uint32_t num_dirty_rects,
uint32_t clear_dirty_region,
qxl_async_io async)
{
if (async == QXL_SYNC) {
qxl->ssd.worker->update_area(qxl->ssd.worker, surface_id, area,
dirty_rects, num_dirty_rects, clear_dirty_region);
} else {
#if SPICE_INTERFACE_QXL_MINOR >= 1
spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
clear_dirty_region, 0);
#else
abort();
#endif
}
}
static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
uint32_t id)
{
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_surfaces.cmds[id] = 0;
qxl->guest_surfaces.count--;
qemu_mutex_unlock(&qxl->track_lock);
}
static void qxl_spice_destroy_surface_wait(PCIQXLDevice *qxl, uint32_t id,
qxl_async_io async)
{
if (async) {
#if SPICE_INTERFACE_QXL_MINOR < 1
abort();
#else
spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id,
(uint64_t)id);
#endif
} else {
qxl->ssd.worker->destroy_surface_wait(qxl->ssd.worker, id);
qxl_spice_destroy_surface_wait_complete(qxl, id);
}
}
#if SPICE_INTERFACE_QXL_MINOR >= 1
static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
{
spice_qxl_flush_surfaces_async(&qxl->ssd.qxl, 0);
}
#endif
void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
uint32_t count)
{
qxl->ssd.worker->loadvm_commands(qxl->ssd.worker, ext, count);
}
void qxl_spice_oom(PCIQXLDevice *qxl)
{
qxl->ssd.worker->oom(qxl->ssd.worker);
}
void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
{
qxl->ssd.worker->reset_memslots(qxl->ssd.worker);
}
static void qxl_spice_destroy_surfaces_complete(PCIQXLDevice *qxl)
{
qemu_mutex_lock(&qxl->track_lock);
memset(&qxl->guest_surfaces.cmds, 0, sizeof(qxl->guest_surfaces.cmds));
qxl->guest_surfaces.count = 0;
qemu_mutex_unlock(&qxl->track_lock);
}
static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
{
if (async) {
#if SPICE_INTERFACE_QXL_MINOR < 1
abort();
#else
spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl, 0);
#endif
} else {
qxl->ssd.worker->destroy_surfaces(qxl->ssd.worker);
qxl_spice_destroy_surfaces_complete(qxl);
}
}
void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
{
qxl->ssd.worker->reset_image_cache(qxl->ssd.worker);
}
void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
{
qxl->ssd.worker->reset_cursor(qxl->ssd.worker);
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = 0;
qemu_mutex_unlock(&qxl->track_lock);
}
static inline uint32_t msb_mask(uint32_t val)
{
uint32_t mask;
do {
mask = ~(val - 1) & val;
val &= ~mask;
} while (mask < val);
return mask;
}
static ram_addr_t qxl_rom_size(void)
{
uint32_t rom_size = sizeof(QXLRom) + sizeof(QXLModes) + sizeof(qxl_modes);
rom_size = MAX(rom_size, TARGET_PAGE_SIZE);
rom_size = msb_mask(rom_size * 2 - 1);
return rom_size;
}
static void init_qxl_rom(PCIQXLDevice *d)
{
QXLRom *rom = memory_region_get_ram_ptr(&d->rom_bar);
QXLModes *modes = (QXLModes *)(rom + 1);
uint32_t ram_header_size;
uint32_t surface0_area_size;
uint32_t num_pages;
uint32_t fb, maxfb = 0;
int i;
memset(rom, 0, d->rom_size);
rom->magic = cpu_to_le32(QXL_ROM_MAGIC);
rom->id = cpu_to_le32(d->id);
rom->log_level = cpu_to_le32(d->guestdebug);
rom->modes_offset = cpu_to_le32(sizeof(QXLRom));
rom->slot_gen_bits = MEMSLOT_GENERATION_BITS;
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);
modes->n_modes = cpu_to_le32(ARRAY_SIZE(qxl_modes));
for (i = 0; i < modes->n_modes; i++) {
fb = qxl_modes[i].y_res * qxl_modes[i].stride;
if (maxfb < fb) {
maxfb = fb;
}
modes->modes[i].id = cpu_to_le32(i);
modes->modes[i].x_res = cpu_to_le32(qxl_modes[i].x_res);
modes->modes[i].y_res = cpu_to_le32(qxl_modes[i].y_res);
modes->modes[i].bits = cpu_to_le32(qxl_modes[i].bits);
modes->modes[i].stride = cpu_to_le32(qxl_modes[i].stride);
modes->modes[i].x_mili = cpu_to_le32(qxl_modes[i].x_mili);
modes->modes[i].y_mili = cpu_to_le32(qxl_modes[i].y_mili);
modes->modes[i].orientation = cpu_to_le32(qxl_modes[i].orientation);
}
if (maxfb < VGA_RAM_SIZE && d->id == 0)
maxfb = VGA_RAM_SIZE;
ram_header_size = ALIGN(sizeof(QXLRam), 4096);
surface0_area_size = ALIGN(maxfb, 4096);
num_pages = d->vga.vram_size;
num_pages -= ram_header_size;
num_pages -= surface0_area_size;
num_pages = num_pages / TARGET_PAGE_SIZE;
rom->draw_area_offset = cpu_to_le32(0);
rom->surface0_area_size = cpu_to_le32(surface0_area_size);
rom->pages_offset = cpu_to_le32(surface0_area_size);
rom->num_pages = cpu_to_le32(num_pages);
rom->ram_header_offset = cpu_to_le32(d->vga.vram_size - ram_header_size);
d->shadow_rom = *rom;
d->rom = rom;
d->modes = modes;
}
static void init_qxl_ram(PCIQXLDevice *d)
{
uint8_t *buf;
uint64_t *item;
buf = d->vga.vram_ptr;
d->ram = (QXLRam *)(buf + le32_to_cpu(d->shadow_rom.ram_header_offset));
d->ram->magic = cpu_to_le32(QXL_RAM_MAGIC);
d->ram->int_pending = cpu_to_le32(0);
d->ram->int_mask = cpu_to_le32(0);
d->ram->update_surface = 0;
SPICE_RING_INIT(&d->ram->cmd_ring);
SPICE_RING_INIT(&d->ram->cursor_ring);
SPICE_RING_INIT(&d->ram->release_ring);
SPICE_RING_PROD_ITEM(&d->ram->release_ring, item);
*item = 0;
qxl_ring_set_dirty(d);
}
/* can be called from spice server thread context */
static void qxl_set_dirty(MemoryRegion *mr, ram_addr_t addr, ram_addr_t end)
{
while (addr < end) {
memory_region_set_dirty(mr, addr);
addr += TARGET_PAGE_SIZE;
}
}
static void qxl_rom_set_dirty(PCIQXLDevice *qxl)
{
qxl_set_dirty(&qxl->rom_bar, 0, qxl->rom_size);
}
/* called from spice server thread context only */
static void qxl_ram_set_dirty(PCIQXLDevice *qxl, void *ptr)
{
void *base = qxl->vga.vram_ptr;
intptr_t offset;
offset = ptr - base;
offset &= ~(TARGET_PAGE_SIZE-1);
assert(offset < qxl->vga.vram_size);
qxl_set_dirty(&qxl->vga.vram, offset, offset + TARGET_PAGE_SIZE);
}
/* can be called from spice server thread context */
static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
{
ram_addr_t addr = qxl->shadow_rom.ram_header_offset;
ram_addr_t end = qxl->vga.vram_size;
qxl_set_dirty(&qxl->vga.vram, addr, end);
}
/*
* keep track of some command state, for savevm/loadvm.
* called from spice server thread context only
*/
static void qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
{
switch (le32_to_cpu(ext->cmd.type)) {
case QXL_CMD_SURFACE:
{
QXLSurfaceCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
uint32_t id = le32_to_cpu(cmd->surface_id);
PANIC_ON(id >= NUM_SURFACES);
qemu_mutex_lock(&qxl->track_lock);
if (cmd->type == QXL_SURFACE_CMD_CREATE) {
qxl->guest_surfaces.cmds[id] = ext->cmd.data;
qxl->guest_surfaces.count++;
if (qxl->guest_surfaces.max < qxl->guest_surfaces.count)
qxl->guest_surfaces.max = qxl->guest_surfaces.count;
}
if (cmd->type == QXL_SURFACE_CMD_DESTROY) {
qxl->guest_surfaces.cmds[id] = 0;
qxl->guest_surfaces.count--;
}
qemu_mutex_unlock(&qxl->track_lock);
break;
}
case QXL_CMD_CURSOR:
{
QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
if (cmd->type == QXL_CURSOR_SET) {
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = ext->cmd.data;
qemu_mutex_unlock(&qxl->track_lock);
}
break;
}
}
}
/* spice display interface callbacks */
static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
dprint(qxl, 1, "%s:\n", __FUNCTION__);
qxl->ssd.worker = qxl_worker;
}
static void interface_set_compression_level(QXLInstance *sin, int level)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
dprint(qxl, 1, "%s: %d\n", __FUNCTION__, level);
qxl->shadow_rom.compression_level = cpu_to_le32(level);
qxl->rom->compression_level = cpu_to_le32(level);
qxl_rom_set_dirty(qxl);
}
static void interface_set_mm_time(QXLInstance *sin, uint32_t mm_time)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
qxl->shadow_rom.mm_clock = cpu_to_le32(mm_time);
qxl->rom->mm_clock = cpu_to_le32(mm_time);
qxl_rom_set_dirty(qxl);
}
static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
dprint(qxl, 1, "%s:\n", __FUNCTION__);
info->memslot_gen_bits = MEMSLOT_GENERATION_BITS;
info->memslot_id_bits = MEMSLOT_SLOT_BITS;
info->num_memslots = NUM_MEMSLOTS;
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;
}
static const char *qxl_mode_to_string(int mode)
{
switch (mode) {
case QXL_MODE_COMPAT:
return "compat";
case QXL_MODE_NATIVE:
return "native";
case QXL_MODE_UNDEFINED:
return "undefined";
case QXL_MODE_VGA:
return "vga";
}
return "INVALID";
}
static const char *io_port_to_string(uint32_t io_port)
{
if (io_port >= QXL_IO_RANGE_SIZE) {
return "out of range";
}
static const char *io_port_to_string[QXL_IO_RANGE_SIZE + 1] = {
[QXL_IO_NOTIFY_CMD] = "QXL_IO_NOTIFY_CMD",
[QXL_IO_NOTIFY_CURSOR] = "QXL_IO_NOTIFY_CURSOR",
[QXL_IO_UPDATE_AREA] = "QXL_IO_UPDATE_AREA",
[QXL_IO_UPDATE_IRQ] = "QXL_IO_UPDATE_IRQ",
[QXL_IO_NOTIFY_OOM] = "QXL_IO_NOTIFY_OOM",
[QXL_IO_RESET] = "QXL_IO_RESET",
[QXL_IO_SET_MODE] = "QXL_IO_SET_MODE",
[QXL_IO_LOG] = "QXL_IO_LOG",
[QXL_IO_MEMSLOT_ADD] = "QXL_IO_MEMSLOT_ADD",
[QXL_IO_MEMSLOT_DEL] = "QXL_IO_MEMSLOT_DEL",
[QXL_IO_DETACH_PRIMARY] = "QXL_IO_DETACH_PRIMARY",
[QXL_IO_ATTACH_PRIMARY] = "QXL_IO_ATTACH_PRIMARY",
[QXL_IO_CREATE_PRIMARY] = "QXL_IO_CREATE_PRIMARY",
[QXL_IO_DESTROY_PRIMARY] = "QXL_IO_DESTROY_PRIMARY",
[QXL_IO_DESTROY_SURFACE_WAIT] = "QXL_IO_DESTROY_SURFACE_WAIT",
[QXL_IO_DESTROY_ALL_SURFACES] = "QXL_IO_DESTROY_ALL_SURFACES",
#if SPICE_INTERFACE_QXL_MINOR >= 1
[QXL_IO_UPDATE_AREA_ASYNC] = "QXL_IO_UPDATE_AREA_ASYNC",
[QXL_IO_MEMSLOT_ADD_ASYNC] = "QXL_IO_MEMSLOT_ADD_ASYNC",
[QXL_IO_CREATE_PRIMARY_ASYNC] = "QXL_IO_CREATE_PRIMARY_ASYNC",
[QXL_IO_DESTROY_PRIMARY_ASYNC] = "QXL_IO_DESTROY_PRIMARY_ASYNC",
[QXL_IO_DESTROY_SURFACE_ASYNC] = "QXL_IO_DESTROY_SURFACE_ASYNC",
[QXL_IO_DESTROY_ALL_SURFACES_ASYNC]
= "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
[QXL_IO_FLUSH_SURFACES_ASYNC] = "QXL_IO_FLUSH_SURFACES_ASYNC",
[QXL_IO_FLUSH_RELEASE] = "QXL_IO_FLUSH_RELEASE",
#endif
};
return io_port_to_string[io_port];
}
/* called from spice server thread context only */
static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
SimpleSpiceUpdate *update;
QXLCommandRing *ring;
QXLCommand *cmd;
int notify, ret;
switch (qxl->mode) {
case QXL_MODE_VGA:
dprint(qxl, 2, "%s: vga\n", __FUNCTION__);
ret = false;
qemu_mutex_lock(&qxl->ssd.lock);
if (qxl->ssd.update != NULL) {
update = qxl->ssd.update;
qxl->ssd.update = NULL;
*ext = update->ext;
ret = true;
}
qemu_mutex_unlock(&qxl->ssd.lock);
if (ret) {
dprint(qxl, 2, "%s %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
qxl_log_command(qxl, "vga", ext);
}
return ret;
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
case QXL_MODE_UNDEFINED:
dprint(qxl, 4, "%s: %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
ring = &qxl->ram->cmd_ring;
if (SPICE_RING_IS_EMPTY(ring)) {
return false;
}
dprint(qxl, 2, "%s: %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
SPICE_RING_CONS_ITEM(ring, cmd);
ext->cmd = *cmd;
ext->group_id = MEMSLOT_GROUP_GUEST;
ext->flags = qxl->cmdflags;
SPICE_RING_POP(ring, notify);
qxl_ring_set_dirty(qxl);
if (notify) {
qxl_send_events(qxl, QXL_INTERRUPT_DISPLAY);
}
qxl->guest_primary.commands++;
qxl_track_command(qxl, ext);
qxl_log_command(qxl, "cmd", ext);
return true;
default:
return false;
}
}
/* called from spice server thread context only */
static int interface_req_cmd_notification(QXLInstance *sin)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
int wait = 1;
switch (qxl->mode) {
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
case QXL_MODE_UNDEFINED:
SPICE_RING_CONS_WAIT(&qxl->ram->cmd_ring, wait);
qxl_ring_set_dirty(qxl);
break;
default:
/* nothing */
break;
}
return wait;
}
/* called from spice server thread context only */
static inline void qxl_push_free_res(PCIQXLDevice *d, int flush)
{
QXLReleaseRing *ring = &d->ram->release_ring;
uint64_t *item;
int notify;
#define QXL_FREE_BUNCH_SIZE 32
if (ring->prod - ring->cons + 1 == ring->num_items) {
/* ring full -- can't push */
return;
}
if (!flush && d->oom_running) {
/* collect everything from oom handler before pushing */
return;
}
if (!flush && d->num_free_res < QXL_FREE_BUNCH_SIZE) {
/* collect a bit more before pushing */
return;
}
SPICE_RING_PUSH(ring, notify);
dprint(d, 2, "free: push %d items, notify %s, ring %d/%d [%d,%d]\n",
d->num_free_res, notify ? "yes" : "no",
ring->prod - ring->cons, ring->num_items,
ring->prod, ring->cons);
if (notify) {
qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
}
SPICE_RING_PROD_ITEM(ring, item);
*item = 0;
d->num_free_res = 0;
d->last_release = NULL;
qxl_ring_set_dirty(d);
}
/* called from spice server thread context only */
static void interface_release_resource(QXLInstance *sin,
struct QXLReleaseInfoExt ext)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
QXLReleaseRing *ring;
uint64_t *item, id;
if (ext.group_id == MEMSLOT_GROUP_HOST) {
/* host group -> vga mode update request */
qemu_spice_destroy_update(&qxl->ssd, (void*)ext.info->id);
return;
}
/*
* ext->info points into guest-visible memory
* pci bar 0, $command.release_info
*/
ring = &qxl->ram->release_ring;
SPICE_RING_PROD_ITEM(ring, item);
if (*item == 0) {
/* stick head into the ring */
id = ext.info->id;
ext.info->next = 0;
qxl_ram_set_dirty(qxl, &ext.info->next);
*item = id;
qxl_ring_set_dirty(qxl);
} else {
/* append item to the list */
qxl->last_release->next = ext.info->id;
qxl_ram_set_dirty(qxl, &qxl->last_release->next);
ext.info->next = 0;
qxl_ram_set_dirty(qxl, &ext.info->next);
}
qxl->last_release = ext.info;
qxl->num_free_res++;
dprint(qxl, 3, "%4d\r", qxl->num_free_res);
qxl_push_free_res(qxl, 0);
}
/* called from spice server thread context only */
static int interface_get_cursor_command(QXLInstance *sin, struct QXLCommandExt *ext)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
QXLCursorRing *ring;
QXLCommand *cmd;
int notify;
switch (qxl->mode) {
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
case QXL_MODE_UNDEFINED:
ring = &qxl->ram->cursor_ring;
if (SPICE_RING_IS_EMPTY(ring)) {
return false;
}
SPICE_RING_CONS_ITEM(ring, cmd);
ext->cmd = *cmd;
ext->group_id = MEMSLOT_GROUP_GUEST;
ext->flags = qxl->cmdflags;
SPICE_RING_POP(ring, notify);
qxl_ring_set_dirty(qxl);
if (notify) {
qxl_send_events(qxl, QXL_INTERRUPT_CURSOR);
}
qxl->guest_primary.commands++;
qxl_track_command(qxl, ext);
qxl_log_command(qxl, "csr", ext);
if (qxl->id == 0) {
qxl_render_cursor(qxl, ext);
}
return true;
default:
return false;
}
}
/* called from spice server thread context only */
static int interface_req_cursor_notification(QXLInstance *sin)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
int wait = 1;
switch (qxl->mode) {
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
case QXL_MODE_UNDEFINED:
SPICE_RING_CONS_WAIT(&qxl->ram->cursor_ring, wait);
qxl_ring_set_dirty(qxl);
break;
default:
/* nothing */
break;
}
return wait;
}
/* called from spice server thread context */
static void interface_notify_update(QXLInstance *sin, uint32_t update_id)
{
fprintf(stderr, "%s: abort()\n", __FUNCTION__);
abort();
}
/* called from spice server thread context only */
static int interface_flush_resources(QXLInstance *sin)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
int ret;
dprint(qxl, 1, "free: guest flush (have %d)\n", qxl->num_free_res);
ret = qxl->num_free_res;
if (ret) {
qxl_push_free_res(qxl, 1);
}
return ret;
}
static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
#if SPICE_INTERFACE_QXL_MINOR >= 1
/* called from spice server thread context only */
static void interface_async_complete(QXLInstance *sin, uint64_t cookie)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
uint32_t current_async;
qemu_mutex_lock(&qxl->async_lock);
current_async = qxl->current_async;
qxl->current_async = QXL_UNDEFINED_IO;
qemu_mutex_unlock(&qxl->async_lock);
dprint(qxl, 2, "async_complete: %d (%ld) done\n", current_async, cookie);
switch (current_async) {
case QXL_IO_CREATE_PRIMARY_ASYNC:
qxl_create_guest_primary_complete(qxl);
break;
case QXL_IO_DESTROY_ALL_SURFACES_ASYNC:
qxl_spice_destroy_surfaces_complete(qxl);
break;
case QXL_IO_DESTROY_SURFACE_ASYNC:
qxl_spice_destroy_surface_wait_complete(qxl, (uint32_t)cookie);
break;
}
qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
}
#endif
static const QXLInterface qxl_interface = {
.base.type = SPICE_INTERFACE_QXL,
.base.description = "qxl gpu",
.base.major_version = SPICE_INTERFACE_QXL_MAJOR,
.base.minor_version = SPICE_INTERFACE_QXL_MINOR,
.attache_worker = interface_attach_worker,
.set_compression_level = interface_set_compression_level,
.set_mm_time = interface_set_mm_time,
.get_init_info = interface_get_init_info,
/* the callbacks below are called from spice server thread context */
.get_command = interface_get_command,
.req_cmd_notification = interface_req_cmd_notification,
.release_resource = interface_release_resource,
.get_cursor_command = interface_get_cursor_command,
.req_cursor_notification = interface_req_cursor_notification,
.notify_update = interface_notify_update,
.flush_resources = interface_flush_resources,
#if SPICE_INTERFACE_QXL_MINOR >= 1
.async_complete = interface_async_complete,
#endif
};
static void qxl_enter_vga_mode(PCIQXLDevice *d)
{
if (d->mode == QXL_MODE_VGA) {
return;
}
dprint(d, 1, "%s\n", __FUNCTION__);
qemu_spice_create_host_primary(&d->ssd);
d->mode = QXL_MODE_VGA;
memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
}
static void qxl_exit_vga_mode(PCIQXLDevice *d)
{
if (d->mode != QXL_MODE_VGA) {
return;
}
dprint(d, 1, "%s\n", __FUNCTION__);
qxl_destroy_primary(d, QXL_SYNC);
}
static void qxl_update_irq(PCIQXLDevice *d)
{
uint32_t pending = le32_to_cpu(d->ram->int_pending);
uint32_t mask = le32_to_cpu(d->ram->int_mask);
int level = !!(pending & mask);
qemu_set_irq(d->pci.irq[0], level);
qxl_ring_set_dirty(d);
}
static void qxl_check_state(PCIQXLDevice *d)
{
QXLRam *ram = d->ram;
assert(!d->ssd.running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
assert(!d->ssd.running || SPICE_RING_IS_EMPTY(&ram->cursor_ring));
}
static void qxl_reset_state(PCIQXLDevice *d)
{
QXLRom *rom = d->rom;
qxl_check_state(d);
d->shadow_rom.update_id = cpu_to_le32(0);
*rom = d->shadow_rom;
qxl_rom_set_dirty(d);
init_qxl_ram(d);
d->num_free_res = 0;
d->last_release = NULL;
memset(&d->ssd.dirty, 0, sizeof(d->ssd.dirty));
}
static void qxl_soft_reset(PCIQXLDevice *d)
{
dprint(d, 1, "%s:\n", __FUNCTION__);
qxl_check_state(d);
if (d->id == 0) {
qxl_enter_vga_mode(d);
} else {
d->mode = QXL_MODE_UNDEFINED;
}
}
static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
{
dprint(d, 1, "%s: start%s\n", __FUNCTION__,
loadvm ? " (loadvm)" : "");
qxl_spice_reset_cursor(d);
qxl_spice_reset_image_cache(d);
qxl_reset_surfaces(d);
qxl_reset_memslots(d);
/* pre loadvm reset must not touch QXLRam. This lives in
* device memory, is migrated together with RAM and thus
* already loaded at this point */
if (!loadvm) {
qxl_reset_state(d);
}
qemu_spice_create_host_memslot(&d->ssd);
qxl_soft_reset(d);
dprint(d, 1, "%s: done\n", __FUNCTION__);
}
static void qxl_reset_handler(DeviceState *dev)
{
PCIQXLDevice *d = DO_UPCAST(PCIQXLDevice, pci.qdev, dev);
qxl_hard_reset(d, 0);
}
static void qxl_vga_ioport_write(void *opaque, uint32_t addr, uint32_t val)
{
VGACommonState *vga = opaque;
PCIQXLDevice *qxl = container_of(vga, PCIQXLDevice, vga);
if (qxl->mode != QXL_MODE_VGA) {
dprint(qxl, 1, "%s\n", __FUNCTION__);
qxl_destroy_primary(qxl, QXL_SYNC);
qxl_soft_reset(qxl);
}
vga_ioport_write(opaque, addr, val);
}
static const MemoryRegionPortio qxl_vga_portio_list[] = {
{ 0x04, 2, 1, .read = vga_ioport_read,
.write = qxl_vga_ioport_write }, /* 3b4 */
{ 0x0a, 1, 1, .read = vga_ioport_read,
.write = qxl_vga_ioport_write }, /* 3ba */
{ 0x10, 16, 1, .read = vga_ioport_read,
.write = qxl_vga_ioport_write }, /* 3c0 */
{ 0x24, 2, 1, .read = vga_ioport_read,
.write = qxl_vga_ioport_write }, /* 3d4 */
{ 0x2a, 1, 1, .read = vga_ioport_read,
.write = qxl_vga_ioport_write }, /* 3da */
PORTIO_END_OF_LIST(),
};
static void qxl_add_memslot(PCIQXLDevice *d, uint32_t slot_id, uint64_t delta,
qxl_async_io async)
{
static const int regions[] = {
QXL_RAM_RANGE_INDEX,
QXL_VRAM_RANGE_INDEX,
};
uint64_t guest_start;
uint64_t guest_end;
int pci_region;
pcibus_t pci_start;
pcibus_t pci_end;
intptr_t virt_start;
QXLDevMemSlot memslot;
int i;
guest_start = le64_to_cpu(d->guest_slots[slot_id].slot.mem_start);
guest_end = le64_to_cpu(d->guest_slots[slot_id].slot.mem_end);
dprint(d, 1, "%s: slot %d: guest phys 0x%" PRIx64 " - 0x%" PRIx64 "\n",
__FUNCTION__, slot_id,
guest_start, guest_end);
PANIC_ON(slot_id >= NUM_MEMSLOTS);
PANIC_ON(guest_start > guest_end);
for (i = 0; i < ARRAY_SIZE(regions); i++) {
pci_region = regions[i];
pci_start = d->pci.io_regions[pci_region].addr;
pci_end = pci_start + d->pci.io_regions[pci_region].size;
/* mapped? */
if (pci_start == -1) {
continue;
}
/* start address in range ? */
if (guest_start < pci_start || guest_start > pci_end) {
continue;
}
/* end address in range ? */
if (guest_end > pci_end) {
continue;
}
/* passed */
break;
}
PANIC_ON(i == ARRAY_SIZE(regions)); /* finished loop without match */
switch (pci_region) {
case QXL_RAM_RANGE_INDEX:
virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vga.vram);
break;
case QXL_VRAM_RANGE_INDEX:
virt_start = (intptr_t)memory_region_get_ram_ptr(&d->vram_bar);
break;
default:
/* should not happen */
abort();
}
memslot.slot_id = slot_id;
memslot.slot_group_id = MEMSLOT_GROUP_GUEST; /* guest group */
memslot.virt_start = virt_start + (guest_start - pci_start);
memslot.virt_end = virt_start + (guest_end - pci_start);
memslot.addr_delta = memslot.virt_start - delta;
memslot.generation = d->rom->slot_generation = 0;
qxl_rom_set_dirty(d);
dprint(d, 1, "%s: slot %d: host virt 0x%lx - 0x%lx\n",
__FUNCTION__, memslot.slot_id,
memslot.virt_start, memslot.virt_end);
qemu_spice_add_memslot(&d->ssd, &memslot, async);
d->guest_slots[slot_id].ptr = (void*)memslot.virt_start;
d->guest_slots[slot_id].size = memslot.virt_end - memslot.virt_start;
d->guest_slots[slot_id].delta = delta;
d->guest_slots[slot_id].active = 1;
}
static void qxl_del_memslot(PCIQXLDevice *d, uint32_t slot_id)
{
dprint(d, 1, "%s: slot %d\n", __FUNCTION__, slot_id);
qemu_spice_del_memslot(&d->ssd, MEMSLOT_GROUP_HOST, slot_id);
d->guest_slots[slot_id].active = 0;
}
static void qxl_reset_memslots(PCIQXLDevice *d)
{
dprint(d, 1, "%s:\n", __FUNCTION__);
qxl_spice_reset_memslots(d);
memset(&d->guest_slots, 0, sizeof(d->guest_slots));
}
static void qxl_reset_surfaces(PCIQXLDevice *d)
{
dprint(d, 1, "%s:\n", __FUNCTION__);
d->mode = QXL_MODE_UNDEFINED;
qxl_spice_destroy_surfaces(d, QXL_SYNC);
}
/* called from spice server thread context only */
void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id)
{
uint64_t phys = le64_to_cpu(pqxl);
uint32_t slot = (phys >> (64 - 8)) & 0xff;
uint64_t offset = phys & 0xffffffffffff;
switch (group_id) {
case MEMSLOT_GROUP_HOST:
return (void*)offset;
case MEMSLOT_GROUP_GUEST:
PANIC_ON(slot >= NUM_MEMSLOTS);
PANIC_ON(!qxl->guest_slots[slot].active);
PANIC_ON(offset < qxl->guest_slots[slot].delta);
offset -= qxl->guest_slots[slot].delta;
PANIC_ON(offset > qxl->guest_slots[slot].size)
return qxl->guest_slots[slot].ptr + offset;
default:
PANIC_ON(1);
}
}
static void qxl_create_guest_primary_complete(PCIQXLDevice *qxl)
{
/* for local rendering */
qxl_render_resize(qxl);
}
static void qxl_create_guest_primary(PCIQXLDevice *qxl, int loadvm,
qxl_async_io async)
{
QXLDevSurfaceCreate surface;
QXLSurfaceCreate *sc = &qxl->guest_primary.surface;
assert(qxl->mode != QXL_MODE_NATIVE);
qxl_exit_vga_mode(qxl);
dprint(qxl, 1, "%s: %dx%d\n", __FUNCTION__,
le32_to_cpu(sc->width), le32_to_cpu(sc->height));
surface.format = le32_to_cpu(sc->format);
surface.height = le32_to_cpu(sc->height);
surface.mem = le64_to_cpu(sc->mem);
surface.position = le32_to_cpu(sc->position);
surface.stride = le32_to_cpu(sc->stride);
surface.width = le32_to_cpu(sc->width);
surface.type = le32_to_cpu(sc->type);
surface.flags = le32_to_cpu(sc->flags);
surface.mouse_mode = true;
surface.group_id = MEMSLOT_GROUP_GUEST;
if (loadvm) {
surface.flags |= QXL_SURF_FLAG_KEEP_DATA;
}
qxl->mode = QXL_MODE_NATIVE;
qxl->cmdflags = 0;
qemu_spice_create_primary_surface(&qxl->ssd, 0, &surface, async);
if (async == QXL_SYNC) {
qxl_create_guest_primary_complete(qxl);
}
}
/* return 1 if surface destoy was initiated (in QXL_ASYNC case) or
* done (in QXL_SYNC case), 0 otherwise. */
static int qxl_destroy_primary(PCIQXLDevice *d, qxl_async_io async)
{
if (d->mode == QXL_MODE_UNDEFINED) {
return 0;
}
dprint(d, 1, "%s\n", __FUNCTION__);
d->mode = QXL_MODE_UNDEFINED;
qemu_spice_destroy_primary_surface(&d->ssd, 0, async);
qxl_spice_reset_cursor(d);
return 1;
}
static void qxl_set_mode(PCIQXLDevice *d, int modenr, int loadvm)
{
pcibus_t start = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
pcibus_t end = d->pci.io_regions[QXL_RAM_RANGE_INDEX].size + start;
QXLMode *mode = d->modes->modes + modenr;
uint64_t devmem = d->pci.io_regions[QXL_RAM_RANGE_INDEX].addr;
QXLMemSlot slot = {
.mem_start = start,
.mem_end = end
};
QXLSurfaceCreate surface = {
.width = mode->x_res,
.height = mode->y_res,
.stride = -mode->x_res * 4,
.format = SPICE_SURFACE_FMT_32_xRGB,
.flags = loadvm ? QXL_SURF_FLAG_KEEP_DATA : 0,
.mouse_mode = true,
.mem = devmem + d->shadow_rom.draw_area_offset,
};
dprint(d, 1, "%s: mode %d [ %d x %d @ %d bpp devmem 0x%" PRIx64 " ]\n",
__func__, modenr, mode->x_res, mode->y_res, mode->bits, devmem);
if (!loadvm) {
qxl_hard_reset(d, 0);
}
d->guest_slots[0].slot = slot;
qxl_add_memslot(d, 0, devmem, QXL_SYNC);
d->guest_primary.surface = surface;
qxl_create_guest_primary(d, 0, QXL_SYNC);
d->mode = QXL_MODE_COMPAT;
d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
#ifdef QXL_COMMAND_FLAG_COMPAT_16BPP /* new in spice 0.6.1 */
if (mode->bits == 16) {
d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
}
#endif
d->shadow_rom.mode = cpu_to_le32(modenr);
d->rom->mode = cpu_to_le32(modenr);
qxl_rom_set_dirty(d);
}
static void ioport_write(void *opaque, target_phys_addr_t addr,
uint64_t val, unsigned size)
{
PCIQXLDevice *d = opaque;
uint32_t io_port = addr;
qxl_async_io async = QXL_SYNC;
#if SPICE_INTERFACE_QXL_MINOR >= 1
uint32_t orig_io_port = io_port;
#endif
switch (io_port) {
case QXL_IO_RESET:
case QXL_IO_SET_MODE:
case QXL_IO_MEMSLOT_ADD:
case QXL_IO_MEMSLOT_DEL:
case QXL_IO_CREATE_PRIMARY:
case QXL_IO_UPDATE_IRQ:
case QXL_IO_LOG:
#if SPICE_INTERFACE_QXL_MINOR >= 1
case QXL_IO_MEMSLOT_ADD_ASYNC:
case QXL_IO_CREATE_PRIMARY_ASYNC:
#endif
break;
default:
if (d->mode != QXL_MODE_VGA) {
break;
}
dprint(d, 1, "%s: unexpected port 0x%x (%s) in vga mode\n",
__func__, io_port, io_port_to_string(io_port));
#if SPICE_INTERFACE_QXL_MINOR >= 1
/* be nice to buggy guest drivers */
if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
io_port <= QXL_IO_DESTROY_ALL_SURFACES_ASYNC) {
qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
}
#endif
return;
}
#if SPICE_INTERFACE_QXL_MINOR >= 1
/* we change the io_port to avoid ifdeffery in the main switch */
orig_io_port = io_port;
switch (io_port) {
case QXL_IO_UPDATE_AREA_ASYNC:
io_port = QXL_IO_UPDATE_AREA;
goto async_common;
case QXL_IO_MEMSLOT_ADD_ASYNC:
io_port = QXL_IO_MEMSLOT_ADD;
goto async_common;
case QXL_IO_CREATE_PRIMARY_ASYNC:
io_port = QXL_IO_CREATE_PRIMARY;
goto async_common;
case QXL_IO_DESTROY_PRIMARY_ASYNC:
io_port = QXL_IO_DESTROY_PRIMARY;
goto async_common;
case QXL_IO_DESTROY_SURFACE_ASYNC:
io_port = QXL_IO_DESTROY_SURFACE_WAIT;
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);
if (d->current_async != QXL_UNDEFINED_IO) {
qxl_guest_bug(d, "%d async started before last (%d) complete",
io_port, d->current_async);
qemu_mutex_unlock(&d->async_lock);
return;
}
d->current_async = orig_io_port;
qemu_mutex_unlock(&d->async_lock);
dprint(d, 2, "start async %d (%"PRId64")\n", io_port, val);
break;
default:
break;
}
#endif
switch (io_port) {
case QXL_IO_UPDATE_AREA:
{
QXLRect update = d->ram->update_area;
qxl_spice_update_area(d, d->ram->update_surface,
&update, NULL, 0, 0, async);
break;
}
case QXL_IO_NOTIFY_CMD:
qemu_spice_wakeup(&d->ssd);
break;
case QXL_IO_NOTIFY_CURSOR:
qemu_spice_wakeup(&d->ssd);
break;
case QXL_IO_UPDATE_IRQ:
qxl_update_irq(d);
break;
case QXL_IO_NOTIFY_OOM:
if (!SPICE_RING_IS_EMPTY(&d->ram->release_ring)) {
break;
}
d->oom_running = 1;
qxl_spice_oom(d);
d->oom_running = 0;
break;
case QXL_IO_SET_MODE:
dprint(d, 1, "QXL_SET_MODE %d\n", (int)val);
qxl_set_mode(d, val, 0);
break;
case QXL_IO_LOG:
if (d->guestdebug) {
fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
qemu_get_clock_ns(vm_clock), d->ram->log_buf);
}
break;
case QXL_IO_RESET:
dprint(d, 1, "QXL_IO_RESET\n");
qxl_hard_reset(d, 0);
break;
case QXL_IO_MEMSLOT_ADD:
if (val >= NUM_MEMSLOTS) {
qxl_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
break;
}
if (d->guest_slots[val].active) {
qxl_guest_bug(d, "QXL_IO_MEMSLOT_ADD: memory slot already active");
break;
}
d->guest_slots[val].slot = d->ram->mem_slot;
qxl_add_memslot(d, val, 0, async);
break;
case QXL_IO_MEMSLOT_DEL:
if (val >= NUM_MEMSLOTS) {
qxl_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
break;
}
qxl_del_memslot(d, val);
break;
case QXL_IO_CREATE_PRIMARY:
if (val != 0) {
qxl_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
async);
goto cancel_async;
}
dprint(d, 1, "QXL_IO_CREATE_PRIMARY async=%d\n", async);
d->guest_primary.surface = d->ram->create_surface;
qxl_create_guest_primary(d, 0, async);
break;
case QXL_IO_DESTROY_PRIMARY:
if (val != 0) {
qxl_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
async);
goto cancel_async;
}
dprint(d, 1, "QXL_IO_DESTROY_PRIMARY (async=%d) (%s)\n", async,
qxl_mode_to_string(d->mode));
if (!qxl_destroy_primary(d, async)) {
dprint(d, 1, "QXL_IO_DESTROY_PRIMARY_ASYNC in %s, ignored\n",
qxl_mode_to_string(d->mode));
goto cancel_async;
}
break;
case QXL_IO_DESTROY_SURFACE_WAIT:
if (val >= NUM_SURFACES) {
qxl_guest_bug(d, "QXL_IO_DESTROY_SURFACE (async=%d):"
"%d >= NUM_SURFACES", async, val);
goto cancel_async;
}
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"
" (%"PRId64") (%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);
break;
default:
fprintf(stderr, "%s: ioport=0x%x, abort()\n", __FUNCTION__, io_port);
abort();
}
return;
cancel_async:
#if SPICE_INTERFACE_QXL_MINOR >= 1
if (async) {
qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
qemu_mutex_lock(&d->async_lock);
d->current_async = QXL_UNDEFINED_IO;
qemu_mutex_unlock(&d->async_lock);
}
#else
return;
#endif
}
static uint64_t ioport_read(void *opaque, target_phys_addr_t addr,
unsigned size)
{
PCIQXLDevice *d = opaque;
dprint(d, 1, "%s: unexpected\n", __FUNCTION__);
return 0xff;
}
static const MemoryRegionOps qxl_io_ops = {
.read = ioport_read,
.write = ioport_write,
.valid = {
.min_access_size = 1,
.max_access_size = 1,
},
};
static void pipe_read(void *opaque)
{
PCIQXLDevice *d = opaque;
char dummy;
int len;
do {
len = read(d->pipe[0], &dummy, sizeof(dummy));
} while (len == sizeof(dummy));
qxl_update_irq(d);
}
static void qxl_send_events(PCIQXLDevice *d, uint32_t events)
{
uint32_t old_pending;
uint32_t le_events = cpu_to_le32(events);
assert(d->ssd.running);
old_pending = __sync_fetch_and_or(&d->ram->int_pending, le_events);
if ((old_pending & le_events) == le_events) {
return;
}
if (qemu_thread_is_self(&d->main)) {
qxl_update_irq(d);
} else {
if (write(d->pipe[1], d, 1) != 1) {
dprint(d, 1, "%s: write to pipe failed\n", __FUNCTION__);
}
}
}
static void init_pipe_signaling(PCIQXLDevice *d)
{
if (pipe(d->pipe) < 0) {
dprint(d, 1, "%s: pipe creation failed\n", __FUNCTION__);
return;
}
fcntl(d->pipe[0], F_SETFL, O_NONBLOCK);
fcntl(d->pipe[1], F_SETFL, O_NONBLOCK);
fcntl(d->pipe[0], F_SETOWN, getpid());
qemu_thread_get_self(&d->main);
qemu_set_fd_handler(d->pipe[0], pipe_read, NULL, d);
}
/* graphics console */
static void qxl_hw_update(void *opaque)
{
PCIQXLDevice *qxl = opaque;
VGACommonState *vga = &qxl->vga;
switch (qxl->mode) {
case QXL_MODE_VGA:
vga->update(vga);
break;
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
qxl_render_update(qxl);
break;
default:
break;
}
}
static void qxl_hw_invalidate(void *opaque)
{
PCIQXLDevice *qxl = opaque;
VGACommonState *vga = &qxl->vga;
vga->invalidate(vga);
}
static void qxl_hw_screen_dump(void *opaque, const char *filename)
{
PCIQXLDevice *qxl = opaque;
VGACommonState *vga = &qxl->vga;
switch (qxl->mode) {
case QXL_MODE_COMPAT:
case QXL_MODE_NATIVE:
qxl_render_update(qxl);
ppm_save(filename, qxl->ssd.ds->surface);
break;
case QXL_MODE_VGA:
vga->screen_dump(vga, filename);
break;
default:
break;
}
}
static void qxl_hw_text_update(void *opaque, console_ch_t *chardata)
{
PCIQXLDevice *qxl = opaque;
VGACommonState *vga = &qxl->vga;
if (qxl->mode == QXL_MODE_VGA) {
vga->text_update(vga, chardata);
return;
}
}
static void qxl_vm_change_state_handler(void *opaque, int running,
RunState state)
{
PCIQXLDevice *qxl = opaque;
qemu_spice_vm_change_state_handler(&qxl->ssd, running, state);
if (running) {
/*
* if qxl_send_events was called from spice server context before
* migration ended, qxl_update_irq for these events might not have been
* called
*/
qxl_update_irq(qxl);
} else if (qxl->mode == QXL_MODE_NATIVE) {
/* dirty all vram (which holds surfaces) and devram (primary surface)
* to make sure they are saved */
/* FIXME #1: should go out during "live" stage */
/* FIXME #2: we only need to save the areas which are actually used */
qxl_set_dirty(&qxl->vram_bar, 0, qxl->vram_size);
qxl_set_dirty(&qxl->vga.vram, qxl->shadow_rom.draw_area_offset,
qxl->shadow_rom.surface0_area_size);
}
}
/* display change listener */
static void display_update(struct DisplayState *ds, int x, int y, int w, int h)
{
if (qxl0->mode == QXL_MODE_VGA) {
qemu_spice_display_update(&qxl0->ssd, x, y, w, h);
}
}
static void display_resize(struct DisplayState *ds)
{
if (qxl0->mode == QXL_MODE_VGA) {
qemu_spice_display_resize(&qxl0->ssd);
}
}
static void display_refresh(struct DisplayState *ds)
{
if (qxl0->mode == QXL_MODE_VGA) {
qemu_spice_display_refresh(&qxl0->ssd);
}
}
static DisplayChangeListener display_listener = {
.dpy_update = display_update,
.dpy_resize = display_resize,
.dpy_refresh = display_refresh,
};
static int qxl_init_common(PCIQXLDevice *qxl)
{
uint8_t* config = qxl->pci.config;
uint32_t pci_device_rev;
uint32_t io_size;
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;
switch (qxl->revision) {
case 1: /* spice 0.4 -- qxl-1 */
pci_device_rev = QXL_REVISION_STABLE_V04;
break;
case 2: /* spice 0.6 -- qxl-2 */
pci_device_rev = QXL_REVISION_STABLE_V06;
break;
#if SPICE_INTERFACE_QXL_MINOR >= 1
case 3: /* qxl-3 */
#endif
default:
pci_device_rev = QXL_DEFAULT_REVISION;
break;
}
pci_set_byte(&config[PCI_REVISION_ID], pci_device_rev);
pci_set_byte(&config[PCI_INTERRUPT_PIN], 1);
qxl->rom_size = qxl_rom_size();
memory_region_init_ram(&qxl->rom_bar, "qxl.vrom", qxl->rom_size);
vmstate_register_ram(&qxl->rom_bar, &qxl->pci.qdev);
init_qxl_rom(qxl);
init_qxl_ram(qxl);
if (qxl->vram_size < 16 * 1024 * 1024) {
qxl->vram_size = 16 * 1024 * 1024;
}
if (qxl->revision == 1) {
qxl->vram_size = 4096;
}
qxl->vram_size = msb_mask(qxl->vram_size * 2 - 1);
memory_region_init_ram(&qxl->vram_bar, "qxl.vram", qxl->vram_size);
vmstate_register_ram(&qxl->vram_bar, &qxl->pci.qdev);
io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
if (qxl->revision == 1) {
io_size = 8;
}
memory_region_init_io(&qxl->io_bar, &qxl_io_ops, qxl,
"qxl-ioports", io_size);
if (qxl->id == 0) {
vga_dirty_log_start(&qxl->vga);
}
pci_register_bar(&qxl->pci, QXL_IO_RANGE_INDEX,
PCI_BASE_ADDRESS_SPACE_IO, &qxl->io_bar);
pci_register_bar(&qxl->pci, QXL_ROM_RANGE_INDEX,
PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->rom_bar);
pci_register_bar(&qxl->pci, QXL_RAM_RANGE_INDEX,
PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vga.vram);
pci_register_bar(&qxl->pci, QXL_VRAM_RANGE_INDEX,
PCI_BASE_ADDRESS_SPACE_MEMORY, &qxl->vram_bar);
qxl->ssd.qxl.base.sif = &qxl_interface.base;
qxl->ssd.qxl.id = qxl->id;
qemu_spice_add_interface(&qxl->ssd.qxl.base);
qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
init_pipe_signaling(qxl);
qxl_reset_state(qxl);
return 0;
}
static int qxl_init_primary(PCIDevice *dev)
{
PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
VGACommonState *vga = &qxl->vga;
ram_addr_t ram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
PortioList *qxl_vga_port_list = g_new(PortioList, 1);
qxl->id = 0;
if (ram_size < 32 * 1024 * 1024) {
ram_size = 32 * 1024 * 1024;
}
vga_common_init(vga, ram_size);
vga_init(vga, pci_address_space(dev), pci_address_space_io(dev), false);
portio_list_init(qxl_vga_port_list, qxl_vga_portio_list, vga, "vga");
portio_list_add(qxl_vga_port_list, pci_address_space_io(dev), 0x3b0);
vga->ds = graphic_console_init(qxl_hw_update, qxl_hw_invalidate,
qxl_hw_screen_dump, qxl_hw_text_update, qxl);
qemu_spice_display_init_common(&qxl->ssd, vga->ds);
qxl0 = qxl;
register_displaychangelistener(vga->ds, &display_listener);
return qxl_init_common(qxl);
}
static int qxl_init_secondary(PCIDevice *dev)
{
static int device_id = 1;
PCIQXLDevice *qxl = DO_UPCAST(PCIQXLDevice, pci, dev);
ram_addr_t ram_size = msb_mask(qxl->vga.vram_size * 2 - 1);
qxl->id = device_id++;
if (ram_size < 16 * 1024 * 1024) {
ram_size = 16 * 1024 * 1024;
}
qxl->vga.vram_size = ram_size;
memory_region_init_ram(&qxl->vga.vram, "qxl.vgavram", qxl->vga.vram_size);
vmstate_register_ram(&qxl->vga.vram, &qxl->pci.qdev);
qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
return qxl_init_common(qxl);
}
static void qxl_pre_save(void *opaque)
{
PCIQXLDevice* d = opaque;
uint8_t *ram_start = d->vga.vram_ptr;
dprint(d, 1, "%s:\n", __FUNCTION__);
if (d->last_release == NULL) {
d->last_release_offset = 0;
} else {
d->last_release_offset = (uint8_t *)d->last_release - ram_start;
}
assert(d->last_release_offset < d->vga.vram_size);
}
static int qxl_pre_load(void *opaque)
{
PCIQXLDevice* d = opaque;
dprint(d, 1, "%s: start\n", __FUNCTION__);
qxl_hard_reset(d, 1);
qxl_exit_vga_mode(d);
dprint(d, 1, "%s: done\n", __FUNCTION__);
return 0;
}
static void qxl_create_memslots(PCIQXLDevice *d)
{
int i;
for (i = 0; i < NUM_MEMSLOTS; i++) {
if (!d->guest_slots[i].active) {
continue;
}
dprint(d, 1, "%s: restoring guest slot %d\n", __func__, i);
qxl_add_memslot(d, i, 0, QXL_SYNC);
}
}
static int qxl_post_load(void *opaque, int version)
{
PCIQXLDevice* d = opaque;
uint8_t *ram_start = d->vga.vram_ptr;
QXLCommandExt *cmds;
int in, out, newmode;
dprint(d, 1, "%s: start\n", __FUNCTION__);
assert(d->last_release_offset < d->vga.vram_size);
if (d->last_release_offset == 0) {
d->last_release = NULL;
} else {
d->last_release = (QXLReleaseInfo *)(ram_start + d->last_release_offset);
}
d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
dprint(d, 1, "%s: restore mode (%s)\n", __FUNCTION__,
qxl_mode_to_string(d->mode));
newmode = d->mode;
d->mode = QXL_MODE_UNDEFINED;
switch (newmode) {
case QXL_MODE_UNDEFINED:
break;
case QXL_MODE_VGA:
qxl_create_memslots(d);
qxl_enter_vga_mode(d);
break;
case QXL_MODE_NATIVE:
qxl_create_memslots(d);
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++) {
if (d->guest_surfaces.cmds[in] == 0) {
continue;
}
cmds[out].cmd.data = d->guest_surfaces.cmds[in];
cmds[out].cmd.type = QXL_CMD_SURFACE;
cmds[out].group_id = MEMSLOT_GROUP_GUEST;
out++;
}
if (d->guest_cursor) {
cmds[out].cmd.data = d->guest_cursor;
cmds[out].cmd.type = QXL_CMD_CURSOR;
cmds[out].group_id = MEMSLOT_GROUP_GUEST;
out++;
}
qxl_spice_loadvm_commands(d, cmds, out);
g_free(cmds);
break;
case QXL_MODE_COMPAT:
/* note: no need to call qxl_create_memslots, qxl_set_mode
* creates the mem slot. */
qxl_set_mode(d, d->shadow_rom.mode, 1);
break;
}
dprint(d, 1, "%s: done\n", __FUNCTION__);
return 0;
}
#define QXL_SAVE_VERSION 21
static VMStateDescription qxl_memslot = {
.name = "qxl-memslot",
.version_id = QXL_SAVE_VERSION,
.minimum_version_id = QXL_SAVE_VERSION,
.fields = (VMStateField[]) {
VMSTATE_UINT64(slot.mem_start, struct guest_slots),
VMSTATE_UINT64(slot.mem_end, struct guest_slots),
VMSTATE_UINT32(active, struct guest_slots),
VMSTATE_END_OF_LIST()
}
};
static VMStateDescription qxl_surface = {
.name = "qxl-surface",
.version_id = QXL_SAVE_VERSION,
.minimum_version_id = QXL_SAVE_VERSION,
.fields = (VMStateField[]) {
VMSTATE_UINT32(width, QXLSurfaceCreate),
VMSTATE_UINT32(height, QXLSurfaceCreate),
VMSTATE_INT32(stride, QXLSurfaceCreate),
VMSTATE_UINT32(format, QXLSurfaceCreate),
VMSTATE_UINT32(position, QXLSurfaceCreate),
VMSTATE_UINT32(mouse_mode, QXLSurfaceCreate),
VMSTATE_UINT32(flags, QXLSurfaceCreate),
VMSTATE_UINT32(type, QXLSurfaceCreate),
VMSTATE_UINT64(mem, QXLSurfaceCreate),
VMSTATE_END_OF_LIST()
}
};
static VMStateDescription qxl_vmstate = {
.name = "qxl",
.version_id = QXL_SAVE_VERSION,
.minimum_version_id = QXL_SAVE_VERSION,
.pre_save = qxl_pre_save,
.pre_load = qxl_pre_load,
.post_load = qxl_post_load,
.fields = (VMStateField []) {
VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
VMSTATE_UINT32(num_free_res, PCIQXLDevice),
VMSTATE_UINT32(last_release_offset, PCIQXLDevice),
VMSTATE_UINT32(mode, PCIQXLDevice),
VMSTATE_UINT32(ssd.unique, PCIQXLDevice),
VMSTATE_INT32_EQUAL(num_memslots, PCIQXLDevice),
VMSTATE_STRUCT_ARRAY(guest_slots, PCIQXLDevice, NUM_MEMSLOTS, 0,
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_UINT64(guest_cursor, PCIQXLDevice),
VMSTATE_END_OF_LIST()
},
};
static Property qxl_properties[] = {
DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size,
64 * 1024 * 1024),
DEFINE_PROP_UINT32("vram_size", PCIQXLDevice, vram_size,
64 * 1024 * 1024),
DEFINE_PROP_UINT32("revision", PCIQXLDevice, revision,
QXL_DEFAULT_REVISION),
DEFINE_PROP_UINT32("debug", PCIQXLDevice, debug, 0),
DEFINE_PROP_UINT32("guestdebug", PCIQXLDevice, guestdebug, 0),
DEFINE_PROP_UINT32("cmdlog", PCIQXLDevice, cmdlog, 0),
DEFINE_PROP_END_OF_LIST(),
};
static PCIDeviceInfo qxl_info_primary = {
.qdev.name = "qxl-vga",
.qdev.desc = "Spice QXL GPU (primary, vga compatible)",
.qdev.size = sizeof(PCIQXLDevice),
.qdev.reset = qxl_reset_handler,
.qdev.vmsd = &qxl_vmstate,
.no_hotplug = 1,
.init = qxl_init_primary,
.romfile = "vgabios-qxl.bin",
.vendor_id = REDHAT_PCI_VENDOR_ID,
.device_id = QXL_DEVICE_ID_STABLE,
.class_id = PCI_CLASS_DISPLAY_VGA,
.qdev.props = qxl_properties,
};
static PCIDeviceInfo qxl_info_secondary = {
.qdev.name = "qxl",
.qdev.desc = "Spice QXL GPU (secondary)",
.qdev.size = sizeof(PCIQXLDevice),
.qdev.reset = qxl_reset_handler,
.qdev.vmsd = &qxl_vmstate,
.init = qxl_init_secondary,
.vendor_id = REDHAT_PCI_VENDOR_ID,
.device_id = QXL_DEVICE_ID_STABLE,
.class_id = PCI_CLASS_DISPLAY_OTHER,
.qdev.props = qxl_properties,
};
static void qxl_register(void)
{
pci_qdev_register(&qxl_info_primary);
pci_qdev_register(&qxl_info_secondary);
}
device_init(qxl_register);
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