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qemu/hw/display/qxl.c
Marc-André Lureau 0a0744f6d8 hw/qxl: fix -Werror=maybe-uninitialized false-positives 
../hw/display/qxl.c:1352:5: error: ‘pci_region’ may be used uninitialized [-Werror=maybe-uninitialized]
../hw/display/qxl.c:1365:22: error: ‘pci_start’ may be used uninitialized [-Werror=maybe-uninitialized]

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
2024-10-02 16:14:29 +04:00

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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/osdep.h"
#include "qemu/units.h"
#include <zlib.h>
#include "qapi/error.h"
#include "qemu/timer.h"
#include "qemu/queue.h"
#include "qemu/atomic.h"
#include "qemu/main-loop.h"
#include "qemu/module.h"
#include "hw/qdev-properties.h"
#include "sysemu/runstate.h"
#include "migration/vmstate.h"
#include "trace.h"
#include "qxl.h"
#undef SPICE_RING_CONS_ITEM
#define SPICE_RING_CONS_ITEM(qxl, r, ret) { \
uint32_t cons = (r)->cons & SPICE_RING_INDEX_MASK(r); \
if (cons >= ARRAY_SIZE((r)->items)) { \
qxl_set_guest_bug(qxl, "SPICE_RING_CONS_ITEM indices mismatch " \
"%u >= %zu", cons, ARRAY_SIZE((r)->items)); \
ret = NULL; \
} else { \
ret = &(r)->items[cons].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(x_res, y_res, 1)
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),
/* these modes need more than 8 MB video memory */
QXL_MODE_EX(1920, 1200),
QXL_MODE_EX(1920, 1440),
QXL_MODE_EX(2000, 2000),
QXL_MODE_EX(2048, 1536),
QXL_MODE_EX(2048, 2048),
QXL_MODE_EX(2560, 1440),
QXL_MODE_EX(2560, 1600),
/* these modes need more than 16 MB video memory */
QXL_MODE_EX(2560, 2048),
QXL_MODE_EX(2800, 2100),
QXL_MODE_EX(3200, 2400),
/* these modes need more than 32 MB video memory */
QXL_MODE_EX(3840, 2160), /* 4k mainstream */
QXL_MODE_EX(4096, 2160), /* 4k */
/* these modes need more than 64 MB video memory */
QXL_MODE_EX(7680, 4320), /* 8k mainstream */
/* these modes need more than 128 MB video memory */
QXL_MODE_EX(8192, 4320), /* 8k */
};
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);
static void qxl_hw_update(void *opaque);
void qxl_set_guest_bug(PCIQXLDevice *qxl, const char *msg, ...)
{
trace_qxl_set_guest_bug(qxl->id);
qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
qxl->guest_bug = 1;
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);
}
}
static void qxl_clear_guest_bug(PCIQXLDevice *qxl)
{
qxl->guest_bug = 0;
}
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, struct QXLCookie *cookie)
{
trace_qxl_spice_update_area(qxl->id, surface_id, area->left, area->right,
area->top, area->bottom);
trace_qxl_spice_update_area_rest(qxl->id, num_dirty_rects,
clear_dirty_region);
if (async == QXL_SYNC) {
spice_qxl_update_area(&qxl->ssd.qxl, surface_id, area,
dirty_rects, num_dirty_rects, clear_dirty_region);
} else {
assert(cookie != NULL);
spice_qxl_update_area_async(&qxl->ssd.qxl, surface_id, area,
clear_dirty_region, (uintptr_t)cookie);
}
}
static void qxl_spice_destroy_surface_wait_complete(PCIQXLDevice *qxl,
uint32_t id)
{
trace_qxl_spice_destroy_surface_wait_complete(qxl->id, 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)
{
QXLCookie *cookie;
trace_qxl_spice_destroy_surface_wait(qxl->id, id, async);
if (async) {
cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_DESTROY_SURFACE_ASYNC);
cookie->u.surface_id = id;
spice_qxl_destroy_surface_async(&qxl->ssd.qxl, id, (uintptr_t)cookie);
} else {
spice_qxl_destroy_surface_wait(&qxl->ssd.qxl, id);
qxl_spice_destroy_surface_wait_complete(qxl, id);
}
}
static void qxl_spice_flush_surfaces_async(PCIQXLDevice *qxl)
{
trace_qxl_spice_flush_surfaces_async(qxl->id, qxl->guest_surfaces.count,
qxl->num_free_res);
spice_qxl_flush_surfaces_async(&qxl->ssd.qxl,
(uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_FLUSH_SURFACES_ASYNC));
}
void qxl_spice_loadvm_commands(PCIQXLDevice *qxl, struct QXLCommandExt *ext,
uint32_t count)
{
trace_qxl_spice_loadvm_commands(qxl->id, ext, count);
spice_qxl_loadvm_commands(&qxl->ssd.qxl, ext, count);
}
void qxl_spice_oom(PCIQXLDevice *qxl)
{
trace_qxl_spice_oom(qxl->id);
spice_qxl_oom(&qxl->ssd.qxl);
}
void qxl_spice_reset_memslots(PCIQXLDevice *qxl)
{
trace_qxl_spice_reset_memslots(qxl->id);
spice_qxl_reset_memslots(&qxl->ssd.qxl);
}
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[0]) * qxl->ssd.num_surfaces);
qxl->guest_surfaces.count = 0;
qemu_mutex_unlock(&qxl->track_lock);
}
static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
{
trace_qxl_spice_destroy_surfaces(qxl->id, async);
if (async) {
spice_qxl_destroy_surfaces_async(&qxl->ssd.qxl,
(uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_DESTROY_ALL_SURFACES_ASYNC));
} else {
spice_qxl_destroy_surfaces(&qxl->ssd.qxl);
qxl_spice_destroy_surfaces_complete(qxl);
}
}
static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
{
QXLMonitorsConfig *cfg;
trace_qxl_spice_monitors_config(qxl->id);
if (replay) {
/*
* don't use QXL_COOKIE_TYPE_IO:
* - we are not running yet (post_load), we will assert
* in send_events
* - this is not a guest io, but a reply, so async_io isn't set.
*/
spice_qxl_monitors_config_async(&qxl->ssd.qxl,
qxl->guest_monitors_config,
MEMSLOT_GROUP_GUEST,
(uintptr_t)qxl_cookie_new(
QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
0));
} else {
#if SPICE_SERVER_VERSION < 0x000e02 /* release 0.14.2 */
if (qxl->max_outputs) {
spice_qxl_set_max_monitors(&qxl->ssd.qxl, qxl->max_outputs);
}
#endif
qxl->guest_monitors_config = qxl->ram->monitors_config;
spice_qxl_monitors_config_async(&qxl->ssd.qxl,
qxl->ram->monitors_config,
MEMSLOT_GROUP_GUEST,
(uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_MONITORS_CONFIG_ASYNC));
}
cfg = qxl_phys2virt(qxl, qxl->guest_monitors_config, MEMSLOT_GROUP_GUEST,
sizeof(QXLMonitorsConfig));
if (cfg != NULL && cfg->count == 1) {
qxl->guest_primary.resized = 1;
qxl->guest_head0_width = cfg->heads[0].width;
qxl->guest_head0_height = cfg->heads[0].height;
} else {
qxl->guest_head0_width = 0;
qxl->guest_head0_height = 0;
}
}
void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
{
trace_qxl_spice_reset_image_cache(qxl->id);
spice_qxl_reset_image_cache(&qxl->ssd.qxl);
}
void qxl_spice_reset_cursor(PCIQXLDevice *qxl)
{
trace_qxl_spice_reset_cursor(qxl->id);
spice_qxl_reset_cursor(&qxl->ssd.qxl);
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = 0;
qemu_mutex_unlock(&qxl->track_lock);
if (qxl->ssd.cursor) {
cursor_unref(qxl->ssd.cursor);
}
qxl->ssd.cursor = cursor_builtin_hidden();
}
static uint32_t qxl_crc32(const uint8_t *p, unsigned len)
{
/*
* zlib xors the seed with 0xffffffff, and xors the result
* again with 0xffffffff; Both are not done with linux's crc32,
* which we want to be compatible with, so undo that.
*/
return crc32(0xffffffff, p, len) ^ 0xffffffff;
}
static ram_addr_t qxl_rom_size(void)
{
#define QXL_REQUIRED_SZ (sizeof(QXLRom) + sizeof(QXLModes) + sizeof(qxl_modes))
#define QXL_ROM_SZ 8192
QEMU_BUILD_BUG_ON(QXL_REQUIRED_SZ > QXL_ROM_SZ);
return QEMU_ALIGN_UP(QXL_REQUIRED_SZ, qemu_real_host_page_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;
int i, n;
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(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;
if (fb > d->vgamem_size) {
continue;
}
modes->modes[n].id = cpu_to_le32(i);
modes->modes[n].x_res = cpu_to_le32(qxl_modes[i].x_res);
modes->modes[n].y_res = cpu_to_le32(qxl_modes[i].y_res);
modes->modes[n].bits = cpu_to_le32(qxl_modes[i].bits);
modes->modes[n].stride = cpu_to_le32(qxl_modes[i].stride);
modes->modes[n].x_mili = cpu_to_le32(qxl_modes[i].x_mili);
modes->modes[n].y_mili = cpu_to_le32(qxl_modes[i].y_mili);
modes->modes[n].orientation = cpu_to_le32(qxl_modes[i].orientation);
n++;
}
modes->n_modes = cpu_to_le32(n);
ram_header_size = ALIGN(sizeof(QXLRam), 4096);
surface0_area_size = ALIGN(d->vgamem_size, 4096);
num_pages = d->vga.vram_size;
num_pages -= ram_header_size;
num_pages -= surface0_area_size;
num_pages = num_pages / QXL_PAGE_SIZE;
assert(ram_header_size + surface0_area_size <= d->vga.vram_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);
if (d->xres && d->yres) {
/* needs linux kernel 4.12+ to work */
rom->client_monitors_config.count = 1;
rom->client_monitors_config.heads[0].left = 0;
rom->client_monitors_config.heads[0].top = 0;
rom->client_monitors_config.heads[0].right = cpu_to_le32(d->xres);
rom->client_monitors_config.heads[0].bottom = cpu_to_le32(d->yres);
rom->client_monitors_config_crc = qxl_crc32(
(const uint8_t *)&rom->client_monitors_config,
sizeof(rom->client_monitors_config));
}
d->shadow_rom = *rom;
d->rom = rom;
d->modes = modes;
}
static void init_qxl_ram(PCIQXLDevice *d)
{
uint8_t *buf;
uint32_t prod;
QXLReleaseRing *ring;
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;
d->ram->monitors_config = 0;
SPICE_RING_INIT(&d->ram->cmd_ring);
SPICE_RING_INIT(&d->ram->cursor_ring);
SPICE_RING_INIT(&d->ram->release_ring);
ring = &d->ram->release_ring;
prod = ring->prod & SPICE_RING_INDEX_MASK(ring);
assert(prod < ARRAY_SIZE(ring->items));
ring->items[prod].el = 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)
{
memory_region_set_dirty(mr, addr, end - addr);
}
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;
assert(offset < qxl->vga.vram_size);
qxl_set_dirty(&qxl->vga.vram, offset, offset + 3);
}
/* 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 int 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,
sizeof(QXLSurfaceCmd));
if (!cmd) {
return 1;
}
uint32_t id = le32_to_cpu(cmd->surface_id);
if (id >= qxl->ssd.num_surfaces) {
qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE id %d >= %d", id,
qxl->ssd.num_surfaces);
return 1;
}
if (cmd->type == QXL_SURFACE_CMD_CREATE &&
(cmd->u.surface_create.stride & 0x03) != 0) {
qxl_set_guest_bug(qxl, "QXL_CMD_SURFACE stride = %d %% 4 != 0\n",
cmd->u.surface_create.stride);
return 1;
}
WITH_QEMU_LOCK_GUARD(&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--;
}
}
break;
}
case QXL_CMD_CURSOR:
{
QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id,
sizeof(QXLCursorCmd));
if (!cmd) {
return 1;
}
if (cmd->type == QXL_CURSOR_SET) {
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = ext->cmd.data;
qemu_mutex_unlock(&qxl->track_lock);
}
if (cmd->type == QXL_CURSOR_HIDE) {
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = 0;
qemu_mutex_unlock(&qxl->track_lock);
}
break;
}
}
return 0;
}
/* spice display interface callbacks */
static void interface_attached_worker(QXLInstance *sin)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
trace_qxl_interface_attach_worker(qxl->id);
}
#if !(SPICE_HAS_ATTACHED_WORKER)
static void interface_attach_worker(QXLInstance *sin, QXLWorker *qxl_worker)
{
interface_attached_worker(sin);
}
#endif
static void interface_set_compression_level(QXLInstance *sin, int level)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
trace_qxl_interface_set_compression_level(qxl->id, 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_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
trace_qxl_interface_get_init_info(qxl->id);
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) << QXL_PAGE_BITS;
info->n_surfaces = qxl->ssd.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",
[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",
[QXL_IO_MONITORS_CONFIG_ASYNC] = "QXL_IO_MONITORS_CONFIG_ASYNC",
};
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;
trace_qxl_ring_command_check(qxl->id, qxl_mode_to_string(qxl->mode));
switch (qxl->mode) {
case QXL_MODE_VGA:
ret = false;
qemu_mutex_lock(&qxl->ssd.lock);
update = QTAILQ_FIRST(&qxl->ssd.updates);
if (update != NULL) {
QTAILQ_REMOVE(&qxl->ssd.updates, update, next);
*ext = update->ext;
ret = true;
}
qemu_mutex_unlock(&qxl->ssd.lock);
if (ret) {
trace_qxl_ring_command_get(qxl->id, 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:
ring = &qxl->ram->cmd_ring;
if (qxl->guest_bug || SPICE_RING_IS_EMPTY(ring)) {
return false;
}
SPICE_RING_CONS_ITEM(qxl, ring, cmd);
if (!cmd) {
return false;
}
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);
trace_qxl_ring_command_get(qxl->id, qxl_mode_to_string(qxl->mode));
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;
trace_qxl_ring_command_req_notification(qxl->id);
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;
uint32_t prod;
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);
trace_qxl_ring_res_push(d->id, qxl_mode_to_string(d->mode),
d->guest_surfaces.count, d->num_free_res,
d->last_release, notify ? "yes" : "no");
trace_qxl_ring_res_push_rest(d->id, ring->prod - ring->cons,
ring->num_items, ring->prod, ring->cons);
if (notify) {
qxl_send_events(d, QXL_INTERRUPT_DISPLAY);
}
ring = &d->ram->release_ring;
prod = ring->prod & SPICE_RING_INDEX_MASK(ring);
if (prod >= ARRAY_SIZE(ring->items)) {
qxl_set_guest_bug(d, "SPICE_RING_PROD_ITEM indices mismatch "
"%u >= %zu", prod, ARRAY_SIZE(ring->items));
return;
}
ring->items[prod].el = 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,
QXLReleaseInfoExt ext)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
QXLReleaseRing *ring;
uint32_t prod;
uint64_t id;
if (!ext.info) {
return;
}
if (ext.group_id == MEMSLOT_GROUP_HOST) {
/* host group -> vga mode update request */
QXLCommandExt *cmdext = (void *)(intptr_t)(ext.info->id);
SimpleSpiceUpdate *update;
g_assert(cmdext->cmd.type == QXL_CMD_DRAW);
update = container_of(cmdext, SimpleSpiceUpdate, ext);
qemu_spice_destroy_update(&qxl->ssd, update);
return;
}
/*
* ext->info points into guest-visible memory
* pci bar 0, $command.release_info
*/
ring = &qxl->ram->release_ring;
prod = ring->prod & SPICE_RING_INDEX_MASK(ring);
if (prod >= ARRAY_SIZE(ring->items)) {
qxl_set_guest_bug(qxl, "SPICE_RING_PROD_ITEM indices mismatch "
"%u >= %zu", prod, ARRAY_SIZE(ring->items));
return;
}
if (ring->items[prod].el == 0) {
/* stick head into the ring */
id = ext.info->id;
ext.info->next = 0;
qxl_ram_set_dirty(qxl, &ext.info->next);
ring->items[prod].el = 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++;
trace_qxl_ring_res_put(qxl->id, 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;
trace_qxl_ring_cursor_check(qxl->id, qxl_mode_to_string(qxl->mode));
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(qxl, ring, cmd);
if (!cmd) {
return false;
}
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->have_vga) {
qxl_render_cursor(qxl, ext);
}
trace_qxl_ring_cursor_get(qxl->id, qxl_mode_to_string(qxl->mode));
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;
trace_qxl_ring_cursor_req_notification(qxl->id);
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)
{
/*
* Called by spice-server as a result of a QXL_CMD_UPDATE which is not in
* use by xf86-video-qxl and is defined out in the qxl windows driver.
* Probably was at some earlier version that is prior to git start (2009),
* and is still guest trigerrable.
*/
fprintf(stderr, "%s: deprecated\n", __func__);
}
/* called from spice server thread context only */
static int interface_flush_resources(QXLInstance *sin)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
int ret;
ret = qxl->num_free_res;
if (ret) {
qxl_push_free_res(qxl, 1);
}
return ret;
}
static void qxl_create_guest_primary_complete(PCIQXLDevice *d);
/* called from spice server thread context only */
static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
{
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);
trace_qxl_interface_async_complete_io(qxl->id, current_async, cookie);
if (!cookie) {
fprintf(stderr, "qxl: %s: error, cookie is NULL\n", __func__);
return;
}
if (cookie && current_async != cookie->io) {
fprintf(stderr,
"qxl: %s: error: current_async = %d != %"
PRId64 " = cookie->io\n", __func__, current_async, cookie->io);
}
switch (current_async) {
case QXL_IO_MEMSLOT_ADD_ASYNC:
case QXL_IO_DESTROY_PRIMARY_ASYNC:
case QXL_IO_UPDATE_AREA_ASYNC:
case QXL_IO_FLUSH_SURFACES_ASYNC:
case QXL_IO_MONITORS_CONFIG_ASYNC:
break;
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, cookie->u.surface_id);
break;
default:
fprintf(stderr, "qxl: %s: unexpected current_async %u\n", __func__,
current_async);
}
qxl_send_events(qxl, QXL_INTERRUPT_IO_CMD);
}
/* called from spice server thread context only */
static void interface_update_area_complete(QXLInstance *sin,
uint32_t surface_id,
QXLRect *dirty, uint32_t num_updated_rects)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
int i;
int qxl_i;
QEMU_LOCK_GUARD(&qxl->ssd.lock);
if (surface_id != 0 || !num_updated_rects ||
!qxl->render_update_cookie_num) {
return;
}
trace_qxl_interface_update_area_complete(qxl->id, surface_id, dirty->left,
dirty->right, dirty->top, dirty->bottom);
trace_qxl_interface_update_area_complete_rest(qxl->id, num_updated_rects);
if (qxl->num_dirty_rects + num_updated_rects > QXL_NUM_DIRTY_RECTS) {
/*
* overflow - treat this as a full update. Not expected to be common.
*/
trace_qxl_interface_update_area_complete_overflow(qxl->id,
QXL_NUM_DIRTY_RECTS);
qxl->guest_primary.resized = 1;
}
if (qxl->guest_primary.resized) {
/*
* Don't bother copying or scheduling the bh since we will flip
* the whole area anyway on completion of the update_area async call
*/
return;
}
qxl_i = qxl->num_dirty_rects;
for (i = 0; i < num_updated_rects; i++) {
qxl->dirty[qxl_i++] = dirty[i];
}
qxl->num_dirty_rects += num_updated_rects;
trace_qxl_interface_update_area_complete_schedule_bh(qxl->id,
qxl->num_dirty_rects);
qemu_bh_schedule(qxl->update_area_bh);
}
/* called from spice server thread context only */
static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
QXLCookie *cookie = (QXLCookie *)(uintptr_t)cookie_token;
switch (cookie->type) {
case QXL_COOKIE_TYPE_IO:
interface_async_complete_io(qxl, cookie);
g_free(cookie);
break;
case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
qxl_render_update_area_done(qxl, cookie);
break;
case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
break;
default:
fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
__func__, cookie->type);
g_free(cookie);
}
}
/* called from spice server thread context only */
static void interface_set_client_capabilities(QXLInstance *sin,
uint8_t client_present,
uint8_t caps[58])
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
if (qxl->revision < 4) {
trace_qxl_set_client_capabilities_unsupported_by_revision(qxl->id,
qxl->revision);
return;
}
if (runstate_check(RUN_STATE_INMIGRATE) ||
runstate_check(RUN_STATE_POSTMIGRATE)) {
return;
}
qxl->shadow_rom.client_present = client_present;
memcpy(qxl->shadow_rom.client_capabilities, caps,
sizeof(qxl->shadow_rom.client_capabilities));
qxl->rom->client_present = client_present;
memcpy(qxl->rom->client_capabilities, caps,
sizeof(qxl->rom->client_capabilities));
qxl_rom_set_dirty(qxl);
qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);
}
static bool qxl_rom_monitors_config_changed(QXLRom *rom,
VDAgentMonitorsConfig *monitors_config,
unsigned int max_outputs)
{
int i;
unsigned int monitors_count;
monitors_count = MIN(monitors_config->num_of_monitors, max_outputs);
if (rom->client_monitors_config.count != monitors_count) {
return true;
}
for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
VDAgentMonConfig *monitor = &monitors_config->monitors[i];
QXLURect *rect = &rom->client_monitors_config.heads[i];
/* monitor->depth ignored */
if ((rect->left != monitor->x) ||
(rect->top != monitor->y) ||
(rect->right != monitor->x + monitor->width) ||
(rect->bottom != monitor->y + monitor->height)) {
return true;
}
}
return false;
}
/* called from main context only */
static int interface_client_monitors_config(QXLInstance *sin,
VDAgentMonitorsConfig *monitors_config)
{
PCIQXLDevice *qxl = container_of(sin, PCIQXLDevice, ssd.qxl);
QXLRom *rom = memory_region_get_ram_ptr(&qxl->rom_bar);
int i;
unsigned max_outputs = ARRAY_SIZE(rom->client_monitors_config.heads);
bool config_changed = false;
if (qxl->revision < 4) {
trace_qxl_client_monitors_config_unsupported_by_device(qxl->id,
qxl->revision);
return 0;
}
/*
* Older windows drivers set int_mask to 0 when their ISR is called,
* then later set it to ~0. So it doesn't relate to the actual interrupts
* handled. However, they are old, so clearly they don't support this
* interrupt
*/
if (qxl->ram->int_mask == 0 || qxl->ram->int_mask == ~0 ||
!(qxl->ram->int_mask & QXL_INTERRUPT_CLIENT_MONITORS_CONFIG)) {
trace_qxl_client_monitors_config_unsupported_by_guest(qxl->id,
qxl->ram->int_mask,
monitors_config);
return 0;
}
if (!monitors_config) {
return 1;
}
/* limit number of outputs based on setting limit */
if (qxl->max_outputs && qxl->max_outputs <= max_outputs) {
max_outputs = qxl->max_outputs;
}
config_changed = qxl_rom_monitors_config_changed(rom,
monitors_config,
max_outputs);
memset(&rom->client_monitors_config, 0,
sizeof(rom->client_monitors_config));
rom->client_monitors_config.count = monitors_config->num_of_monitors;
/* monitors_config->flags ignored */
if (rom->client_monitors_config.count >= max_outputs) {
trace_qxl_client_monitors_config_capped(qxl->id,
monitors_config->num_of_monitors,
max_outputs);
rom->client_monitors_config.count = max_outputs;
}
for (i = 0 ; i < rom->client_monitors_config.count ; ++i) {
VDAgentMonConfig *monitor = &monitors_config->monitors[i];
QXLURect *rect = &rom->client_monitors_config.heads[i];
/* monitor->depth ignored */
rect->left = monitor->x;
rect->top = monitor->y;
rect->right = monitor->x + monitor->width;
rect->bottom = monitor->y + monitor->height;
}
rom->client_monitors_config_crc = qxl_crc32(
(const uint8_t *)&rom->client_monitors_config,
sizeof(rom->client_monitors_config));
trace_qxl_client_monitors_config_crc(qxl->id,
sizeof(rom->client_monitors_config),
rom->client_monitors_config_crc);
trace_qxl_interrupt_client_monitors_config(qxl->id,
rom->client_monitors_config.count,
rom->client_monitors_config.heads);
if (config_changed) {
qxl_send_events(qxl, QXL_INTERRUPT_CLIENT_MONITORS_CONFIG);
}
return 1;
}
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,
#if SPICE_HAS_ATTACHED_WORKER
.attached_worker = interface_attached_worker,
#else
.attache_worker = interface_attach_worker,
#endif
.set_compression_level = interface_set_compression_level,
.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,
.async_complete = interface_async_complete,
.update_area_complete = interface_update_area_complete,
.set_client_capabilities = interface_set_client_capabilities,
.client_monitors_config = interface_client_monitors_config,
};
static const GraphicHwOps qxl_ops = {
.gfx_update = qxl_hw_update,
.gfx_update_async = true,
};
static void qxl_enter_vga_mode(PCIQXLDevice *d)
{
if (d->mode == QXL_MODE_VGA) {
return;
}
trace_qxl_enter_vga_mode(d->id);
spice_qxl_driver_unload(&d->ssd.qxl);
graphic_console_set_hwops(d->ssd.dcl.con, d->vga.hw_ops, &d->vga);
update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_DEFAULT);
qemu_spice_create_host_primary(&d->ssd);
d->mode = QXL_MODE_VGA;
qemu_spice_display_switch(&d->ssd, d->ssd.ds);
vga_dirty_log_start(&d->vga);
graphic_hw_update(d->vga.con);
}
static void qxl_exit_vga_mode(PCIQXLDevice *d)
{
if (d->mode != QXL_MODE_VGA) {
return;
}
trace_qxl_exit_vga_mode(d->id);
graphic_console_set_hwops(d->ssd.dcl.con, &qxl_ops, d);
update_displaychangelistener(&d->ssd.dcl, GUI_REFRESH_INTERVAL_IDLE);
vga_dirty_log_stop(&d->vga);
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);
pci_set_irq(&d->pci, level);
qxl_ring_set_dirty(d);
}
static void qxl_check_state(PCIQXLDevice *d)
{
QXLRam *ram = d->ram;
int spice_display_running = qemu_spice_display_is_running(&d->ssd);
assert(!spice_display_running || SPICE_RING_IS_EMPTY(&ram->cmd_ring));
assert(!spice_display_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));
qxl_update_irq(d);
}
static void qxl_soft_reset(PCIQXLDevice *d)
{
trace_qxl_soft_reset(d->id);
qxl_check_state(d);
qxl_clear_guest_bug(d);
qemu_mutex_lock(&d->async_lock);
d->current_async = QXL_UNDEFINED_IO;
qemu_mutex_unlock(&d->async_lock);
if (d->have_vga) {
qxl_enter_vga_mode(d);
} else {
d->mode = QXL_MODE_UNDEFINED;
}
}
static void qxl_hard_reset(PCIQXLDevice *d, int loadvm)
{
bool startstop = qemu_spice_display_is_running(&d->ssd);
trace_qxl_hard_reset(d->id, loadvm);
if (startstop) {
qemu_spice_display_stop();
}
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);
if (startstop) {
qemu_spice_display_start();
}
}
static void qxl_reset_handler(DeviceState *dev)
{
PCIQXLDevice *d = PCI_QXL(PCI_DEVICE(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);
trace_qxl_io_write_vga(qxl->id, qxl_mode_to_string(qxl->mode), addr, val);
if (qxl->mode != QXL_MODE_VGA &&
qxl->revision <= QXL_REVISION_STABLE_V12) {
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 int 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,
QXL_VRAM64_RANGE_INDEX,
};
uint64_t guest_start;
uint64_t guest_end;
int pci_region = -1;
pcibus_t pci_start = PCI_BAR_UNMAPPED;
pcibus_t pci_end;
MemoryRegion *mr;
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);
trace_qxl_memslot_add_guest(d->id, slot_id, guest_start, guest_end);
if (slot_id >= NUM_MEMSLOTS) {
qxl_set_guest_bug(d, "%s: slot_id >= NUM_MEMSLOTS %d >= %d", __func__,
slot_id, NUM_MEMSLOTS);
return 1;
}
if (guest_start > guest_end) {
qxl_set_guest_bug(d, "%s: guest_start > guest_end 0x%" PRIx64
" > 0x%" PRIx64, __func__, guest_start, guest_end);
return 1;
}
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;
}
if (i == ARRAY_SIZE(regions)) {
qxl_set_guest_bug(d, "%s: finished loop without match", __func__);
return 1;
}
switch (pci_region) {
case QXL_RAM_RANGE_INDEX:
mr = &d->vga.vram;
break;
case QXL_VRAM_RANGE_INDEX:
case 4 /* vram 64bit */:
mr = &d->vram_bar;
break;
default:
/* should not happen */
qxl_set_guest_bug(d, "%s: pci_region = %d", __func__, pci_region);
return 1;
}
assert(guest_end - pci_start <= memory_region_size(mr));
virt_start = (intptr_t)memory_region_get_ram_ptr(mr);
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);
qemu_spice_add_memslot(&d->ssd, &memslot, async);
d->guest_slots[slot_id].mr = mr;
d->guest_slots[slot_id].offset = memslot.virt_start - 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;
return 0;
}
static void qxl_del_memslot(PCIQXLDevice *d, uint32_t 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)
{
qxl_spice_reset_memslots(d);
memset(&d->guest_slots, 0, sizeof(d->guest_slots));
}
static void qxl_reset_surfaces(PCIQXLDevice *d)
{
trace_qxl_reset_surfaces(d->id);
d->mode = QXL_MODE_UNDEFINED;
qxl_spice_destroy_surfaces(d, QXL_SYNC);
}
/* can be also called from spice server thread context */
static bool qxl_get_check_slot_offset(PCIQXLDevice *qxl, QXLPHYSICAL pqxl,
uint32_t *s, uint64_t *o,
size_t size_requested)
{
uint64_t phys = le64_to_cpu(pqxl);
uint32_t slot = (phys >> (64 - 8)) & 0xff;
uint64_t offset = phys & 0xffffffffffff;
uint64_t size_available;
if (slot >= NUM_MEMSLOTS) {
qxl_set_guest_bug(qxl, "slot too large %d >= %d", slot,
NUM_MEMSLOTS);
return false;
}
if (!qxl->guest_slots[slot].active) {
qxl_set_guest_bug(qxl, "inactive slot %d\n", slot);
return false;
}
if (offset < qxl->guest_slots[slot].delta) {
qxl_set_guest_bug(qxl,
"slot %d offset %"PRIu64" < delta %"PRIu64"\n",
slot, offset, qxl->guest_slots[slot].delta);
return false;
}
offset -= qxl->guest_slots[slot].delta;
if (offset > qxl->guest_slots[slot].size) {
qxl_set_guest_bug(qxl,
"slot %d offset %"PRIu64" > size %"PRIu64"\n",
slot, offset, qxl->guest_slots[slot].size);
return false;
}
size_available = memory_region_size(qxl->guest_slots[slot].mr);
if (qxl->guest_slots[slot].offset + offset >= size_available) {
qxl_set_guest_bug(qxl,
"slot %d offset %"PRIu64" > region size %"PRIu64"\n",
slot, qxl->guest_slots[slot].offset + offset,
size_available);
return false;
}
size_available -= qxl->guest_slots[slot].offset + offset;
if (size_requested > size_available) {
qxl_set_guest_bug(qxl,
"slot %d offset %"PRIu64" size %zu: "
"overrun by %"PRIu64" bytes\n",
slot, offset, size_requested,
size_requested - size_available);
return false;
}
*s = slot;
*o = offset;
return true;
}
/* can be also called from spice server thread context */
void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL pqxl, int group_id,
size_t size)
{
uint64_t offset;
uint32_t slot;
void *ptr;
switch (group_id) {
case MEMSLOT_GROUP_HOST:
offset = le64_to_cpu(pqxl) & 0xffffffffffff;
return (void *)(intptr_t)offset;
case MEMSLOT_GROUP_GUEST:
if (!qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset, size)) {
return NULL;
}
ptr = memory_region_get_ram_ptr(qxl->guest_slots[slot].mr);
ptr += qxl->guest_slots[slot].offset;
ptr += offset;
return ptr;
}
return NULL;
}
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;
uint32_t requested_height = le32_to_cpu(sc->height);
int requested_stride = le32_to_cpu(sc->stride);
if (requested_stride == INT32_MIN ||
abs(requested_stride) * (uint64_t)requested_height
> qxl->vgamem_size) {
qxl_set_guest_bug(qxl, "%s: requested primary larger than framebuffer"
" stride %d x height %" PRIu32 " > %" PRIu32,
__func__, requested_stride, requested_height,
qxl->vgamem_size);
return;
}
if (qxl->mode == QXL_MODE_NATIVE) {
qxl_set_guest_bug(qxl, "%s: nop since already in QXL_MODE_NATIVE",
__func__);
}
qxl_exit_vga_mode(qxl);
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);
trace_qxl_create_guest_primary(qxl->id, sc->width, sc->height, sc->mem,
sc->format, sc->position);
trace_qxl_create_guest_primary_rest(qxl->id, sc->stride, sc->type,
sc->flags);
if ((surface.stride & 0x3) != 0) {
qxl_set_guest_bug(qxl, "primary surface stride = %d %% 4 != 0",
surface.stride);
return;
}
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 destroy 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;
}
trace_qxl_destroy_primary(d->id);
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, unsigned 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
};
if (modenr >= d->modes->n_modes) {
qxl_set_guest_bug(d, "mode number out of range");
return;
}
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,
};
trace_qxl_set_mode(d->id, modenr, mode->x_res, mode->y_res, mode->bits,
devmem);
if (!loadvm) {
qxl_hard_reset(d, 0);
}
d->guest_slots[0].slot = slot;
if (qxl_add_memslot(d, 0, devmem, QXL_SYNC) != 0) {
qxl_set_guest_bug(d, "device isn't initialized yet");
return;
}
d->guest_primary.surface = surface;
qxl_create_guest_primary(d, 0, QXL_SYNC);
d->mode = QXL_MODE_COMPAT;
d->cmdflags = QXL_COMMAND_FLAG_COMPAT;
if (mode->bits == 16) {
d->cmdflags |= QXL_COMMAND_FLAG_COMPAT_16BPP;
}
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, hwaddr addr,
uint64_t val, unsigned size)
{
PCIQXLDevice *d = opaque;
uint32_t io_port = addr;
qxl_async_io async = QXL_SYNC;
uint32_t orig_io_port;
if (d->guest_bug && io_port != QXL_IO_RESET) {
return;
}
if (d->revision <= QXL_REVISION_STABLE_V10 &&
io_port > QXL_IO_FLUSH_RELEASE) {
qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
io_port, d->revision);
return;
}
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:
case QXL_IO_MEMSLOT_ADD_ASYNC:
case QXL_IO_CREATE_PRIMARY_ASYNC:
break;
default:
if (d->mode != QXL_MODE_VGA) {
break;
}
trace_qxl_io_unexpected_vga_mode(d->id,
addr, val, io_port_to_string(io_port));
/* be nice to buggy guest drivers */
if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
io_port < QXL_IO_RANGE_SIZE) {
qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
}
return;
}
/* 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:
case QXL_IO_MONITORS_CONFIG_ASYNC:
async_common:
async = QXL_ASYNC;
WITH_QEMU_LOCK_GUARD(&d->async_lock) {
if (d->current_async != QXL_UNDEFINED_IO) {
qxl_set_guest_bug(d, "%d async started before last (%d) complete",
io_port, d->current_async);
return;
}
d->current_async = orig_io_port;
}
break;
default:
break;
}
trace_qxl_io_write(d->id, qxl_mode_to_string(d->mode),
addr, io_port_to_string(addr),
val, size, async);
switch (io_port) {
case QXL_IO_UPDATE_AREA:
{
QXLCookie *cookie = NULL;
QXLRect update = d->ram->update_area;
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);
break;
}
if (update.left >= update.right || update.top >= update.bottom ||
update.left < 0 || update.top < 0) {
qxl_set_guest_bug(d,
"QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
update.left, update.top, update.right, update.bottom);
if (update.left == update.right || update.top == update.bottom) {
/* old drivers may provide empty area, keep going */
qxl_clear_guest_bug(d);
goto cancel_async;
}
break;
}
if (async == QXL_ASYNC) {
cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_UPDATE_AREA_ASYNC);
cookie->u.area = update;
}
qxl_spice_update_area(d, d->ram->update_surface,
cookie ? &cookie->u.area : &update,
NULL, 0, 0, async, cookie);
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:
qxl_set_mode(d, val, 0);
break;
case QXL_IO_LOG:
#ifdef CONFIG_MODULES
/*
* FIXME
* trace_event_get_state_backends() does not work for modules,
* it leads to "undefined symbol: qemu_qxl_io_log_semaphore"
*/
if (true) {
#else
if (trace_event_get_state_backends(TRACE_QXL_IO_LOG) || d->guestdebug) {
#endif
/* We cannot trust the guest to NUL terminate d->ram->log_buf */
char *log_buf = g_strndup((const char *)d->ram->log_buf,
sizeof(d->ram->log_buf));
trace_qxl_io_log(d->id, log_buf);
if (d->guestdebug) {
fprintf(stderr, "qxl/guest-%d: %" PRId64 ": %s", d->id,
qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), log_buf);
}
g_free(log_buf);
}
break;
case QXL_IO_RESET:
qxl_hard_reset(d, 0);
break;
case QXL_IO_MEMSLOT_ADD:
if (val >= NUM_MEMSLOTS) {
qxl_set_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
break;
}
if (d->guest_slots[val].active) {
qxl_set_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_set_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_set_guest_bug(d, "QXL_IO_CREATE_PRIMARY (async=%d): val != 0",
async);
goto cancel_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_set_guest_bug(d, "QXL_IO_DESTROY_PRIMARY (async=%d): val != 0",
async);
goto cancel_async;
}
if (!qxl_destroy_primary(d, async)) {
trace_qxl_io_destroy_primary_ignored(d->id,
qxl_mode_to_string(d->mode));
goto cancel_async;
}
break;
case QXL_IO_DESTROY_SURFACE_WAIT:
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;
}
qxl_spice_destroy_surface_wait(d, val, async);
break;
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 */);
break;
}
case QXL_IO_FLUSH_SURFACES_ASYNC:
qxl_spice_flush_surfaces_async(d);
break;
case QXL_IO_DESTROY_ALL_SURFACES:
d->mode = QXL_MODE_UNDEFINED;
qxl_spice_destroy_surfaces(d, async);
break;
case QXL_IO_MONITORS_CONFIG_ASYNC:
qxl_spice_monitors_config_async(d, 0);
break;
default:
qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
}
return;
cancel_async:
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);
}
}
static uint64_t ioport_read(void *opaque, hwaddr addr,
unsigned size)
{
PCIQXLDevice *qxl = opaque;
trace_qxl_io_read_unexpected(qxl->id);
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 qxl_update_irq_bh(void *opaque)
{
PCIQXLDevice *d = opaque;
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);
trace_qxl_send_events(d->id, events);
if (!qemu_spice_display_is_running(&d->ssd)) {
/* spice-server tracks guest running state and should not do this */
fprintf(stderr, "%s: spice-server bug: guest stopped, ignoring\n",
__func__);
trace_qxl_send_events_vm_stopped(d->id, events);
return;
}
/*
* Older versions of Spice forgot to define the QXLRam struct
* with the '__aligned__(4)' attribute. clang 7 and newer will
* thus warn that qatomic_fetch_or(&d->ram->int_pending, ...)
* might be a misaligned atomic access, and will generate an
* out-of-line call for it, which results in a link error since
* we don't currently link against libatomic.
*
* In fact we set up d->ram in init_qxl_ram() so it always starts
* at a 4K boundary, so we know that &d->ram->int_pending is
* naturally aligned for a uint32_t. Newer Spice versions
* (with Spice commit beda5ec7a6848be20c0cac2a9a8ef2a41e8069c1)
* will fix the bug directly. To deal with older versions,
* we tell the compiler to assume the address really is aligned.
* Any compiler which cares about the misalignment will have
* __builtin_assume_aligned.
*/
#ifdef HAS_ASSUME_ALIGNED
#define ALIGNED_UINT32_PTR(P) ((uint32_t *)__builtin_assume_aligned(P, 4))
#else
#define ALIGNED_UINT32_PTR(P) ((uint32_t *)P)
#endif
old_pending = qatomic_fetch_or(ALIGNED_UINT32_PTR(&d->ram->int_pending),
le_events);
if ((old_pending & le_events) == le_events) {
return;
}
qemu_bh_schedule(d->update_irq);
}
/* graphics console */
static void qxl_hw_update(void *opaque)
{
PCIQXLDevice *qxl = opaque;
qxl_render_update(qxl);
}
static void qxl_dirty_one_surface(PCIQXLDevice *qxl, QXLPHYSICAL pqxl,
uint32_t height, int32_t stride)
{
uint64_t offset, size;
uint32_t slot;
bool rc;
size = (uint64_t)height * abs(stride);
rc = qxl_get_check_slot_offset(qxl, pqxl, &slot, &offset, size);
assert(rc == true);
trace_qxl_surfaces_dirty(qxl->id, offset, size);
qxl_set_dirty(qxl->guest_slots[slot].mr,
qxl->guest_slots[slot].offset + offset,
qxl->guest_slots[slot].offset + offset + size);
}
static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
{
int i;
if (qxl->mode != QXL_MODE_NATIVE && qxl->mode != QXL_MODE_COMPAT) {
return;
}
/* dirty the primary surface */
qxl_dirty_one_surface(qxl, qxl->guest_primary.surface.mem,
qxl->guest_primary.surface.height,
qxl->guest_primary.surface.stride);
/* dirty the off-screen surfaces */
for (i = 0; i < qxl->ssd.num_surfaces; i++) {
QXLSurfaceCmd *cmd;
if (qxl->guest_surfaces.cmds[i] == 0) {
continue;
}
cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
MEMSLOT_GROUP_GUEST, sizeof(QXLSurfaceCmd));
assert(cmd);
assert(cmd->type == QXL_SURFACE_CMD_CREATE);
qxl_dirty_one_surface(qxl, cmd->u.surface_create.data,
cmd->u.surface_create.height,
cmd->u.surface_create.stride);
}
}
static void qxl_vm_change_state_handler(void *opaque, bool running,
RunState state)
{
PCIQXLDevice *qxl = opaque;
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 {
/* make sure surfaces are saved before migration */
qxl_dirty_surfaces(qxl);
}
}
/* display change listener */
static void display_update(DisplayChangeListener *dcl,
int x, int y, int w, int h)
{
PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
if (qxl->mode == QXL_MODE_VGA) {
qemu_spice_display_update(&qxl->ssd, x, y, w, h);
}
}
static void display_switch(DisplayChangeListener *dcl,
struct DisplaySurface *surface)
{
PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
qxl->ssd.ds = surface;
if (qxl->mode == QXL_MODE_VGA) {
qemu_spice_display_switch(&qxl->ssd, surface);
}
}
static void display_refresh(DisplayChangeListener *dcl)
{
PCIQXLDevice *qxl = container_of(dcl, PCIQXLDevice, ssd.dcl);
if (qxl->mode == QXL_MODE_VGA) {
qemu_spice_display_refresh(&qxl->ssd);
}
}
static DisplayChangeListenerOps display_listener_ops = {
.dpy_name = "spice/qxl",
.dpy_gfx_update = display_update,
.dpy_gfx_switch = display_switch,
.dpy_refresh = display_refresh,
};
static void qxl_init_ramsize(PCIQXLDevice *qxl)
{
/* vga mode framebuffer / primary surface (bar 0, first part) */
if (qxl->vgamem_size_mb < 8) {
qxl->vgamem_size_mb = 8;
}
/* XXX: we round vgamem_size_mb up to a nearest power of two and it must be
* less than vga_common_init()'s maximum on qxl->vga.vram_size (512 now).
*/
if (qxl->vgamem_size_mb > 256) {
qxl->vgamem_size_mb = 256;
}
qxl->vgamem_size = qxl->vgamem_size_mb * MiB;
/* vga ram (bar 0, total) */
if (qxl->ram_size_mb != -1) {
qxl->vga.vram_size = qxl->ram_size_mb * MiB;
}
if (qxl->vga.vram_size < qxl->vgamem_size * 2) {
qxl->vga.vram_size = qxl->vgamem_size * 2;
}
/* vram32 (surfaces, 32bit, bar 1) */
if (qxl->vram32_size_mb != -1) {
qxl->vram32_size = qxl->vram32_size_mb * MiB;
}
if (qxl->vram32_size < 4096) {
qxl->vram32_size = 4096;
}
/* vram (surfaces, 64bit, bar 4+5) */
if (qxl->vram_size_mb != -1) {
qxl->vram_size = (uint64_t)qxl->vram_size_mb * MiB;
}
if (qxl->vram_size < qxl->vram32_size) {
qxl->vram_size = qxl->vram32_size;
}
if (qxl->revision == 1) {
qxl->vram32_size = 4096;
qxl->vram_size = 4096;
}
qxl->vgamem_size = pow2ceil(qxl->vgamem_size);
qxl->vga.vram_size = pow2ceil(qxl->vga.vram_size);
qxl->vram32_size = pow2ceil(qxl->vram32_size);
qxl->vram_size = pow2ceil(qxl->vram_size);
}
static void qxl_realize_common(PCIQXLDevice *qxl, Error **errp)
{
uint8_t* config = qxl->pci.config;
uint32_t pci_device_rev;
uint32_t io_size;
qemu_spice_display_init_common(&qxl->ssd);
qxl->mode = QXL_MODE_UNDEFINED;
qxl->num_memslots = NUM_MEMSLOTS;
qemu_mutex_init(&qxl->track_lock);
qemu_mutex_init(&qxl->async_lock);
qxl->current_async = QXL_UNDEFINED_IO;
qxl->guest_bug = 0;
switch (qxl->revision) {
case 1: /* spice 0.4 -- qxl-1 */
pci_device_rev = QXL_REVISION_STABLE_V04;
io_size = 8;
break;
case 2: /* spice 0.6 -- qxl-2 */
pci_device_rev = QXL_REVISION_STABLE_V06;
io_size = 16;
break;
case 3: /* qxl-3 */
pci_device_rev = QXL_REVISION_STABLE_V10;
io_size = 32; /* PCI region size must be pow2 */
break;
case 4: /* qxl-4 */
pci_device_rev = QXL_REVISION_STABLE_V12;
io_size = pow2ceil(QXL_IO_RANGE_SIZE);
break;
case 5: /* qxl-5 */
pci_device_rev = QXL_REVISION_STABLE_V12 + 1;
io_size = pow2ceil(QXL_IO_RANGE_SIZE);
break;
default:
error_setg(errp, "Invalid revision %d for qxl device (max %d)",
qxl->revision, QXL_DEFAULT_REVISION);
return;
}
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_rom(&qxl->rom_bar, OBJECT(qxl), "qxl.vrom",
qxl->rom_size, &error_fatal);
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, OBJECT(qxl), "qxl.vram",
qxl->vram_size, &error_fatal);
memory_region_init_alias(&qxl->vram32_bar, OBJECT(qxl), "qxl.vram32",
&qxl->vram_bar, 0, qxl->vram32_size);
memory_region_init_io(&qxl->io_bar, OBJECT(qxl), &qxl_io_ops, qxl,
"qxl-ioports", io_size);
if (qxl->have_vga) {
vga_dirty_log_start(&qxl->vga);
}
memory_region_set_flush_coalesced(&qxl->io_bar);
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->vram32_bar);
if (qxl->vram32_size < qxl->vram_size) {
/*
* Make the 64bit vram bar show up only in case it is
* configured to be larger than the 32bit vram bar.
*/
pci_register_bar(&qxl->pci, QXL_VRAM64_RANGE_INDEX,
PCI_BASE_ADDRESS_SPACE_MEMORY |
PCI_BASE_ADDRESS_MEM_TYPE_64 |
PCI_BASE_ADDRESS_MEM_PREFETCH,
&qxl->vram_bar);
}
/* print pci bar details */
dprint(qxl, 1, "ram/%s: %" PRId64 " MB [region 0]\n",
qxl->have_vga ? "pri" : "sec", qxl->vga.vram_size / MiB);
dprint(qxl, 1, "vram/32: %" PRIx64 " MB [region 1]\n",
qxl->vram32_size / MiB);
dprint(qxl, 1, "vram/64: %" PRIx64 " MB %s\n",
qxl->vram_size / MiB,
qxl->vram32_size < qxl->vram_size ? "[region 4]" : "[unmapped]");
qxl->ssd.qxl.base.sif = &qxl_interface.base;
if (qemu_spice_add_display_interface(&qxl->ssd.qxl, qxl->vga.con) != 0) {
error_setg(errp, "qxl interface %d.%d not supported by spice-server",
SPICE_INTERFACE_QXL_MAJOR, SPICE_INTERFACE_QXL_MINOR);
return;
}
#if SPICE_SERVER_VERSION >= 0x000e02 /* release 0.14.2 */
Error *err = NULL;
char device_address[256] = "";
if (qemu_console_fill_device_address(qxl->vga.con,
device_address, sizeof(device_address),
&err)) {
spice_qxl_set_device_info(&qxl->ssd.qxl,
device_address,
0,
qxl->max_outputs);
} else {
error_report_err(err);
}
#endif
qemu_add_vm_change_state_handler(qxl_vm_change_state_handler, qxl);
qxl->update_irq = qemu_bh_new_guarded(qxl_update_irq_bh, qxl,
&DEVICE(qxl)->mem_reentrancy_guard);
qxl_reset_state(qxl);
qxl->update_area_bh = qemu_bh_new_guarded(qxl_render_update_area_bh, qxl,
&DEVICE(qxl)->mem_reentrancy_guard);
qxl->ssd.cursor_bh = qemu_bh_new_guarded(qemu_spice_cursor_refresh_bh, &qxl->ssd,
&DEVICE(qxl)->mem_reentrancy_guard);
}
static void qxl_realize_primary(PCIDevice *dev, Error **errp)
{
PCIQXLDevice *qxl = PCI_QXL(dev);
VGACommonState *vga = &qxl->vga;
Error *local_err = NULL;
qxl_init_ramsize(qxl);
vga->vbe_size = qxl->vgamem_size;
vga->vram_size_mb = qxl->vga.vram_size / MiB;
vga_common_init(vga, OBJECT(dev), &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
vga_init(vga, OBJECT(dev),
pci_address_space(dev), pci_address_space_io(dev), false);
portio_list_init(&qxl->vga_port_list, OBJECT(dev), qxl_vga_portio_list,
vga, "vga");
portio_list_set_flush_coalesced(&qxl->vga_port_list);
portio_list_add(&qxl->vga_port_list, pci_address_space_io(dev), 0x3b0);
qxl->have_vga = true;
vga->con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
qxl->id = qemu_console_get_index(vga->con); /* == channel_id */
if (qxl->id != 0) {
error_setg(errp, "primary qxl-vga device must be console 0 "
"(first display device on the command line)");
return;
}
qxl_realize_common(qxl, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
qxl->ssd.dcl.ops = &display_listener_ops;
qxl->ssd.dcl.con = vga->con;
register_displaychangelistener(&qxl->ssd.dcl);
}
static void qxl_realize_secondary(PCIDevice *dev, Error **errp)
{
PCIQXLDevice *qxl = PCI_QXL(dev);
qxl_init_ramsize(qxl);
memory_region_init_ram(&qxl->vga.vram, OBJECT(dev), "qxl.vgavram",
qxl->vga.vram_size, &error_fatal);
qxl->vga.vram_ptr = memory_region_get_ram_ptr(&qxl->vga.vram);
qxl->vga.con = graphic_console_init(DEVICE(dev), 0, &qxl_ops, qxl);
qxl->ssd.dcl.con = qxl->vga.con;
qxl->id = qemu_console_get_index(qxl->vga.con); /* == channel_id */
qxl_realize_common(qxl, errp);
}
static int qxl_pre_save(void *opaque)
{
PCIQXLDevice* d = opaque;
uint8_t *ram_start = d->vga.vram_ptr;
trace_qxl_pre_save(d->id);
if (d->last_release == NULL) {
d->last_release_offset = 0;
} else {
d->last_release_offset = (uint8_t *)d->last_release - ram_start;
}
if (d->last_release_offset >= d->vga.vram_size) {
return 1;
}
return 0;
}
static int qxl_pre_load(void *opaque)
{
PCIQXLDevice* d = opaque;
trace_qxl_pre_load(d->id);
qxl_hard_reset(d, 1);
qxl_exit_vga_mode(d);
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;
}
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;
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);
trace_qxl_post_load(d->id, qxl_mode_to_string(d->mode));
newmode = d->mode;
d->mode = QXL_MODE_UNDEFINED;
switch (newmode) {
case QXL_MODE_UNDEFINED:
qxl_create_memslots(d);
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_new0(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;
}
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);
if (d->guest_monitors_config) {
qxl_spice_monitors_config_async(d, 1);
}
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;
}
return 0;
}
#define QXL_SAVE_VERSION 21
static bool qxl_monitors_config_needed(void *opaque)
{
PCIQXLDevice *qxl = opaque;
return qxl->guest_monitors_config != 0;
}
static const VMStateDescription qxl_memslot = {
.name = "qxl-memslot",
.version_id = QXL_SAVE_VERSION,
.minimum_version_id = QXL_SAVE_VERSION,
.fields = (const 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 const VMStateDescription qxl_surface = {
.name = "qxl-surface",
.version_id = QXL_SAVE_VERSION,
.minimum_version_id = QXL_SAVE_VERSION,
.fields = (const 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 const VMStateDescription qxl_vmstate_monitors_config = {
.name = "qxl/monitors-config",
.version_id = 1,
.minimum_version_id = 1,
.needed = qxl_monitors_config_needed,
.fields = (const VMStateField[]) {
VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
VMSTATE_END_OF_LIST()
},
};
static const 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 = (const 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, NULL),
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(ssd.num_surfaces, PCIQXLDevice, NULL),
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()
},
.subsections = (const VMStateDescription * const []) {
&qxl_vmstate_monitors_config,
NULL
}
};
static Property qxl_properties[] = {
DEFINE_PROP_UINT32("ram_size", PCIQXLDevice, vga.vram_size, 64 * MiB),
DEFINE_PROP_UINT64("vram_size", PCIQXLDevice, vram32_size, 64 * MiB),
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_UINT32("ram_size_mb", PCIQXLDevice, ram_size_mb, -1),
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_UINT16("max_outputs", PCIQXLDevice, max_outputs, 0),
DEFINE_PROP_UINT32("xres", PCIQXLDevice, xres, 0),
DEFINE_PROP_UINT32("yres", PCIQXLDevice, yres, 0),
DEFINE_PROP_BOOL("global-vmstate", PCIQXLDevice, vga.global_vmstate, false),
DEFINE_PROP_END_OF_LIST(),
};
static void qxl_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->vendor_id = REDHAT_PCI_VENDOR_ID;
k->device_id = QXL_DEVICE_ID_STABLE;
set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
device_class_set_legacy_reset(dc, qxl_reset_handler);
dc->vmsd = &qxl_vmstate;
device_class_set_props(dc, qxl_properties);
}
static const TypeInfo qxl_pci_type_info = {
.name = TYPE_PCI_QXL,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(PCIQXLDevice),
.abstract = true,
.class_init = qxl_pci_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static void qxl_primary_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = qxl_realize_primary;
k->romfile = "vgabios-qxl.bin";
k->class_id = PCI_CLASS_DISPLAY_VGA;
dc->desc = "Spice QXL GPU (primary, vga compatible)";
dc->hotpluggable = false;
}
static const TypeInfo qxl_primary_info = {
.name = "qxl-vga",
.parent = TYPE_PCI_QXL,
.class_init = qxl_primary_class_init,
};
module_obj("qxl-vga");
module_kconfig(QXL);
static void qxl_secondary_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = qxl_realize_secondary;
k->class_id = PCI_CLASS_DISPLAY_OTHER;
dc->desc = "Spice QXL GPU (secondary)";
}
static const TypeInfo qxl_secondary_info = {
.name = "qxl",
.parent = TYPE_PCI_QXL,
.class_init = qxl_secondary_class_init,
};
module_obj("qxl");
static void qxl_register_types(void)
{
type_register_static(&qxl_pci_type_info);
type_register_static(&qxl_primary_info);
type_register_static(&qxl_secondary_info);
}
type_init(qxl_register_types)
module_dep("ui-spice-core");
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