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qxl: check for NULL return from qxl_phys2virt

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Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Alon Levy 2012-04-25 12:13:18 +03:00 committed by Gerd Hoffmann
parent 4b635c59b0
commit fae2afb10e
4 changed files with 64 additions and 20 deletions
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51
hw/qxl-logger.c
View File

@ -100,12 +100,15 @@ static const char *qxl_v2n(const char *n[], size_t l, int v)
}
#define qxl_name(_list, _value) qxl_v2n(_list, ARRAY_SIZE(_list), _value)
static void qxl_log_image(PCIQXLDevice *qxl, QXLPHYSICAL addr, int group_id)
static int qxl_log_image(PCIQXLDevice *qxl, QXLPHYSICAL addr, int group_id)
{
QXLImage *image;
QXLImageDescriptor *desc;
image = qxl_phys2virt(qxl, addr, group_id);
if (!image) {
return 1;
}
desc = &image->descriptor;
fprintf(stderr, " (id %" PRIx64 " type %d flags %d width %d height %d",
desc->id, desc->type, desc->flags, desc->width, desc->height);
@ -120,6 +123,7 @@ static void qxl_log_image(PCIQXLDevice *qxl, QXLPHYSICAL addr, int group_id)
break;
}
fprintf(stderr, ")");
return 0;
}
static void qxl_log_rect(QXLRect *rect)
@ -130,17 +134,24 @@ static void qxl_log_rect(QXLRect *rect)
rect->left, rect->top);
}
static void qxl_log_cmd_draw_copy(PCIQXLDevice *qxl, QXLCopy *copy, int group_id)
static int qxl_log_cmd_draw_copy(PCIQXLDevice *qxl, QXLCopy *copy,
int group_id)
{
int ret;
fprintf(stderr, " src %" PRIx64,
copy->src_bitmap);
qxl_log_image(qxl, copy->src_bitmap, group_id);
ret = qxl_log_image(qxl, copy->src_bitmap, group_id);
if (ret != 0) {
return ret;
}
fprintf(stderr, " area");
qxl_log_rect(&copy->src_area);
fprintf(stderr, " rop %d", copy->rop_descriptor);
return 0;
}
static void qxl_log_cmd_draw(PCIQXLDevice *qxl, QXLDrawable *draw, int group_id)
static int qxl_log_cmd_draw(PCIQXLDevice *qxl, QXLDrawable *draw, int group_id)
{
fprintf(stderr, ": surface_id %d type %s effect %s",
draw->surface_id,
@ -148,13 +159,14 @@ static void qxl_log_cmd_draw(PCIQXLDevice *qxl, QXLDrawable *draw, int group_id)
qxl_name(qxl_draw_effect, draw->effect));
switch (draw->type) {
case QXL_DRAW_COPY:
qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
return qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
break;
}
return 0;
}
static void qxl_log_cmd_draw_compat(PCIQXLDevice *qxl, QXLCompatDrawable *draw,
int group_id)
static int qxl_log_cmd_draw_compat(PCIQXLDevice *qxl, QXLCompatDrawable *draw,
int group_id)
{
fprintf(stderr, ": type %s effect %s",
qxl_name(qxl_draw_type, draw->type),
@ -166,9 +178,10 @@ static void qxl_log_cmd_draw_compat(PCIQXLDevice *qxl, QXLCompatDrawable *draw,
}
switch (draw->type) {
case QXL_DRAW_COPY:
qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
return qxl_log_cmd_draw_copy(qxl, &draw->u.copy, group_id);
break;
}
return 0;
}
static void qxl_log_cmd_surface(PCIQXLDevice *qxl, QXLSurfaceCmd *cmd)
@ -189,7 +202,7 @@ static void qxl_log_cmd_surface(PCIQXLDevice *qxl, QXLSurfaceCmd *cmd)
}
}
void qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id)
int qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id)
{
QXLCursor *cursor;
@ -203,6 +216,9 @@ void qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id)
cmd->u.set.visible ? "yes" : "no",
cmd->u.set.shape);
cursor = qxl_phys2virt(qxl, cmd->u.set.shape, group_id);
if (!cursor) {
return 1;
}
fprintf(stderr, " type %s size %dx%d hot-spot +%d+%d"
" unique 0x%" PRIx64 " data-size %d",
qxl_name(spice_cursor_type, cursor->header.type),
@ -214,15 +230,17 @@ void qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id)
fprintf(stderr, " +%d+%d", cmd->u.position.x, cmd->u.position.y);
break;
}
return 0;
}
void qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext)
int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext)
{
bool compat = ext->flags & QXL_COMMAND_FLAG_COMPAT;
void *data;
int ret;
if (!qxl->cmdlog) {
return;
return 0;
}
fprintf(stderr, "%" PRId64 " qxl-%d/%s:", qemu_get_clock_ns(vm_clock),
qxl->id, ring);
@ -231,12 +249,18 @@ void qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext)
compat ? "(compat)" : "");
data = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
if (!data) {
return 1;
}
switch (ext->cmd.type) {
case QXL_CMD_DRAW:
if (!compat) {
qxl_log_cmd_draw(qxl, data, ext->group_id);
ret = qxl_log_cmd_draw(qxl, data, ext->group_id);
} else {
qxl_log_cmd_draw_compat(qxl, data, ext->group_id);
ret = qxl_log_cmd_draw_compat(qxl, data, ext->group_id);
}
if (ret) {
return ret;
}
break;
case QXL_CMD_SURFACE:
@ -247,4 +271,5 @@ void qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext)
break;
}
fprintf(stderr, "\n");
return 0;
}

14
hw/qxl-render.c
View File

@ -228,14 +228,18 @@ fail:
/* called from spice server thread context only */
void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
{
QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
QXLCursor *cursor;
QEMUCursor *c;
if (!cmd) {
return 1;
}
if (!qxl->ssd.ds->mouse_set || !qxl->ssd.ds->cursor_define) {
return;
return 0;
}
if (qxl->debug > 1 && cmd->type != QXL_CURSOR_MOVE) {
@ -246,9 +250,12 @@ void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
switch (cmd->type) {
case QXL_CURSOR_SET:
cursor = qxl_phys2virt(qxl, cmd->u.set.shape, ext->group_id);
if (!cursor) {
return 1;
}
if (cursor->chunk.data_size != cursor->data_size) {
fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__);
return;
return 1;
}
c = qxl_cursor(qxl, cursor);
if (c == NULL) {
@ -270,4 +277,5 @@ void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext)
qemu_mutex_unlock(&qxl->ssd.lock);
break;
}
return 0;
}

13
hw/qxl.c
View File

@ -383,12 +383,16 @@ static void qxl_ring_set_dirty(PCIQXLDevice *qxl)
* 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)
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);
if (!cmd) {
return 1;
}
uint32_t id = le32_to_cpu(cmd->surface_id);
PANIC_ON(id >= NUM_SURFACES);
qemu_mutex_lock(&qxl->track_lock);
@ -408,6 +412,10 @@ static void qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
case QXL_CMD_CURSOR:
{
QXLCursorCmd *cmd = qxl_phys2virt(qxl, ext->cmd.data, ext->group_id);
if (!cmd) {
return 1;
}
if (cmd->type == QXL_CURSOR_SET) {
qemu_mutex_lock(&qxl->track_lock);
qxl->guest_cursor = ext->cmd.data;
@ -416,6 +424,7 @@ static void qxl_track_command(PCIQXLDevice *qxl, struct QXLCommandExt *ext)
break;
}
}
return 0;
}
/* spice display interface callbacks */
@ -1568,10 +1577,12 @@ static void qxl_dirty_surfaces(PCIQXLDevice *qxl)
cmd = qxl_phys2virt(qxl, qxl->guest_surfaces.cmds[i],
MEMSLOT_GROUP_GUEST);
assert(cmd);
assert(cmd->type == QXL_SURFACE_CMD_CREATE);
surface_offset = (intptr_t)qxl_phys2virt(qxl,
cmd->u.surface_create.data,
MEMSLOT_GROUP_GUEST);
assert(surface_offset);
surface_offset -= vram_start;
surface_size = cmd->u.surface_create.height *
abs(cmd->u.surface_create.stride);

6
hw/qxl.h
View File

@ -142,12 +142,12 @@ void qxl_spice_reset_image_cache(PCIQXLDevice *qxl);
void qxl_spice_reset_cursor(PCIQXLDevice *qxl);
/* qxl-logger.c */
void qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id);
void qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext);
int qxl_log_cmd_cursor(PCIQXLDevice *qxl, QXLCursorCmd *cmd, int group_id);
int qxl_log_command(PCIQXLDevice *qxl, const char *ring, QXLCommandExt *ext);
/* qxl-render.c */
void qxl_render_resize(PCIQXLDevice *qxl);
void qxl_render_update(PCIQXLDevice *qxl);
void qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext);
int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt *ext);
void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie);
void qxl_render_update_area_bh(void *opaque);