NULL
};
-static int get_event_by_name(const char *name, BlkdebugEvent *event)
-{
- int i;
-
- for (i = 0; i < BLKDBG__MAX; i++) {
- if (!strcmp(BlkdebugEvent_lookup[i], name)) {
- *event = i;
- return 0;
- }
- }
-
- return -1;
-}
-
struct add_rule_data {
BDRVBlkdebugState *s;
int action;
struct add_rule_data *d = opaque;
BDRVBlkdebugState *s = d->s;
const char* event_name;
- BlkdebugEvent event;
+ int event;
struct BlkdebugRule *rule;
int64_t sector;
if (!event_name) {
error_setg(errp, "Missing event name for rule");
return -1;
- } else if (get_event_by_name(event_name, &event) < 0) {
- error_setg(errp, "Invalid event name \"%s\"", event_name);
+ }
+ event = qapi_enum_parse(&BlkdebugEvent_lookup, event_name, -1, errp);
+ if (event < 0) {
return -1;
}
ret = qemu_config_parse(f, config_groups, filename);
if (ret < 0) {
error_setg(errp, "Could not parse blkdebug config file");
- ret = -EINVAL;
goto fail;
}
}
}
static int coroutine_fn blkdebug_co_pwrite_zeroes(BlockDriverState *bs,
- int64_t offset, int count,
+ int64_t offset, int bytes,
BdrvRequestFlags flags)
{
uint32_t align = MAX(bs->bl.request_alignment,
* preferred alignment (so that we test the fallback to writes on
* unaligned portions), and check that the block layer never hands
* us anything unaligned that crosses an alignment boundary. */
- if (count < align) {
+ if (bytes < align) {
assert(QEMU_IS_ALIGNED(offset, align) ||
- QEMU_IS_ALIGNED(offset + count, align) ||
+ QEMU_IS_ALIGNED(offset + bytes, align) ||
DIV_ROUND_UP(offset, align) ==
- DIV_ROUND_UP(offset + count, align));
+ DIV_ROUND_UP(offset + bytes, align));
return -ENOTSUP;
}
assert(QEMU_IS_ALIGNED(offset, align));
- assert(QEMU_IS_ALIGNED(count, align));
+ assert(QEMU_IS_ALIGNED(bytes, align));
if (bs->bl.max_pwrite_zeroes) {
- assert(count <= bs->bl.max_pwrite_zeroes);
+ assert(bytes <= bs->bl.max_pwrite_zeroes);
}
- err = rule_check(bs, offset, count);
+ err = rule_check(bs, offset, bytes);
if (err) {
return err;
}
- return bdrv_co_pwrite_zeroes(bs->file, offset, count, flags);
+ return bdrv_co_pwrite_zeroes(bs->file, offset, bytes, flags);
}
static int coroutine_fn blkdebug_co_pdiscard(BlockDriverState *bs,
- int64_t offset, int count)
+ int64_t offset, int bytes)
{
uint32_t align = bs->bl.pdiscard_alignment;
int err;
/* Only pass through requests that are larger than requested
* minimum alignment, and ensure that unaligned requests do not
* cross optimum discard boundaries. */
- if (count < bs->bl.request_alignment) {
+ if (bytes < bs->bl.request_alignment) {
assert(QEMU_IS_ALIGNED(offset, align) ||
- QEMU_IS_ALIGNED(offset + count, align) ||
+ QEMU_IS_ALIGNED(offset + bytes, align) ||
DIV_ROUND_UP(offset, align) ==
- DIV_ROUND_UP(offset + count, align));
+ DIV_ROUND_UP(offset + bytes, align));
return -ENOTSUP;
}
assert(QEMU_IS_ALIGNED(offset, bs->bl.request_alignment));
- assert(QEMU_IS_ALIGNED(count, bs->bl.request_alignment));
- if (align && count >= align) {
+ assert(QEMU_IS_ALIGNED(bytes, bs->bl.request_alignment));
+ if (align && bytes >= align) {
assert(QEMU_IS_ALIGNED(offset, align));
- assert(QEMU_IS_ALIGNED(count, align));
+ assert(QEMU_IS_ALIGNED(bytes, align));
}
if (bs->bl.max_pdiscard) {
- assert(count <= bs->bl.max_pdiscard);
+ assert(bytes <= bs->bl.max_pdiscard);
}
- err = rule_check(bs, offset, count);
+ err = rule_check(bs, offset, bytes);
if (err) {
return err;
}
- return bdrv_co_pdiscard(bs->file->bs, offset, count);
+ return bdrv_co_pdiscard(bs->file->bs, offset, bytes);
+}
+
+static int64_t coroutine_fn blkdebug_co_get_block_status(
+ BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum,
+ BlockDriverState **file)
+{
+ assert(QEMU_IS_ALIGNED(sector_num | nb_sectors,
+ DIV_ROUND_UP(bs->bl.request_alignment,
+ BDRV_SECTOR_SIZE)));
+ return bdrv_co_get_block_status_from_file(bs, sector_num, nb_sectors,
+ pnum, file);
}
static void blkdebug_close(BlockDriverState *bs)
{
BDRVBlkdebugState *s = bs->opaque;
struct BlkdebugRule *rule;
- BlkdebugEvent blkdebug_event;
+ int blkdebug_event;
- if (get_event_by_name(event, &blkdebug_event) < 0) {
+ blkdebug_event = qapi_enum_parse(&BlkdebugEvent_lookup, event, -1, NULL);
+ if (blkdebug_event < 0) {
return -ENOENT;
}
-
rule = g_malloc(sizeof(*rule));
*rule = (struct BlkdebugRule) {
.event = blkdebug_event,
return bdrv_getlength(bs->file->bs);
}
-static int blkdebug_truncate(BlockDriverState *bs, int64_t offset, Error **errp)
-{
- return bdrv_truncate(bs->file, offset, errp);
-}
-
static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
{
BDRVBlkdebugState *s = bs->opaque;
}
if (!force_json && bs->file->bs->exact_filename[0]) {
- snprintf(bs->exact_filename, sizeof(bs->exact_filename),
- "blkdebug:%s:%s", s->config_file ?: "",
- bs->file->bs->exact_filename);
+ int ret = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "blkdebug:%s:%s", s->config_file ?: "",
+ bs->file->bs->exact_filename);
+ if (ret >= sizeof(bs->exact_filename)) {
+ /* An overflow makes the filename unusable, so do not report any */
+ bs->exact_filename[0] = 0;
+ }
}
opts = qdict_new();
.format_name = "blkdebug",
.protocol_name = "blkdebug",
.instance_size = sizeof(BDRVBlkdebugState),
+ .is_filter = true,
.bdrv_parse_filename = blkdebug_parse_filename,
.bdrv_file_open = blkdebug_open,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_getlength = blkdebug_getlength,
- .bdrv_truncate = blkdebug_truncate,
.bdrv_refresh_filename = blkdebug_refresh_filename,
.bdrv_refresh_limits = blkdebug_refresh_limits,
.bdrv_co_flush_to_disk = blkdebug_co_flush,
.bdrv_co_pwrite_zeroes = blkdebug_co_pwrite_zeroes,
.bdrv_co_pdiscard = blkdebug_co_pdiscard,
+ .bdrv_co_get_block_status = blkdebug_co_get_block_status,
.bdrv_debug_event = blkdebug_debug_event,
.bdrv_debug_breakpoint = blkdebug_debug_breakpoint,
projects / mirror_qemu.git / blobdiff