*/
#include "qemu/osdep.h"
+#include "block/qdict.h"
#include "qapi/error.h"
#include "qemu/timer.h"
#include "qemu/bswap.h"
#include "trace.h"
#include "qed.h"
#include "sysemu/block-backend.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qobject-input-visitor.h"
+#include "qapi/qapi-visit-block-core.h"
+
+static QemuOptsList qed_create_opts;
static int bdrv_qed_probe(const uint8_t *buf, int buf_size,
const char *filename)
qemu_vfree(s->l1_table);
}
-static int qed_create(const char *filename, uint32_t cluster_size,
- uint64_t image_size, uint32_t table_size,
- const char *backing_file, const char *backing_fmt,
- QemuOpts *opts, Error **errp)
+static int coroutine_fn bdrv_qed_co_create(BlockdevCreateOptions *opts,
+ Error **errp)
{
- QEDHeader header = {
- .magic = QED_MAGIC,
- .cluster_size = cluster_size,
- .table_size = table_size,
- .header_size = 1,
- .features = 0,
- .compat_features = 0,
- .l1_table_offset = cluster_size,
- .image_size = image_size,
- };
+ BlockdevCreateOptionsQed *qed_opts;
+ BlockBackend *blk = NULL;
+ BlockDriverState *bs = NULL;
+
+ QEDHeader header;
QEDHeader le_header;
uint8_t *l1_table = NULL;
- size_t l1_size = header.cluster_size * header.table_size;
- Error *local_err = NULL;
+ size_t l1_size;
int ret = 0;
- BlockBackend *blk;
- ret = bdrv_create_file(filename, opts, &local_err);
- if (ret < 0) {
- error_propagate(errp, local_err);
- return ret;
+ assert(opts->driver == BLOCKDEV_DRIVER_QED);
+ qed_opts = &opts->u.qed;
+
+ /* Validate options and set default values */
+ if (!qed_opts->has_cluster_size) {
+ qed_opts->cluster_size = QED_DEFAULT_CLUSTER_SIZE;
+ }
+ if (!qed_opts->has_table_size) {
+ qed_opts->table_size = QED_DEFAULT_TABLE_SIZE;
}
- blk = blk_new_open(filename, NULL, NULL,
- BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL,
- &local_err);
- if (blk == NULL) {
- error_propagate(errp, local_err);
+ if (!qed_is_cluster_size_valid(qed_opts->cluster_size)) {
+ error_setg(errp, "QED cluster size must be within range [%u, %u] "
+ "and power of 2",
+ QED_MIN_CLUSTER_SIZE, QED_MAX_CLUSTER_SIZE);
+ return -EINVAL;
+ }
+ if (!qed_is_table_size_valid(qed_opts->table_size)) {
+ error_setg(errp, "QED table size must be within range [%u, %u] "
+ "and power of 2",
+ QED_MIN_TABLE_SIZE, QED_MAX_TABLE_SIZE);
+ return -EINVAL;
+ }
+ if (!qed_is_image_size_valid(qed_opts->size, qed_opts->cluster_size,
+ qed_opts->table_size))
+ {
+ error_setg(errp, "QED image size must be a non-zero multiple of "
+ "cluster size and less than %" PRIu64 " bytes",
+ qed_max_image_size(qed_opts->cluster_size,
+ qed_opts->table_size));
+ return -EINVAL;
+ }
+
+ /* Create BlockBackend to write to the image */
+ bs = bdrv_open_blockdev_ref(qed_opts->file, errp);
+ if (bs == NULL) {
return -EIO;
}
+ blk = blk_new(BLK_PERM_WRITE | BLK_PERM_RESIZE, BLK_PERM_ALL);
+ ret = blk_insert_bs(blk, bs, errp);
+ if (ret < 0) {
+ goto out;
+ }
blk_set_allow_write_beyond_eof(blk, true);
+ /* Prepare image format */
+ header = (QEDHeader) {
+ .magic = QED_MAGIC,
+ .cluster_size = qed_opts->cluster_size,
+ .table_size = qed_opts->table_size,
+ .header_size = 1,
+ .features = 0,
+ .compat_features = 0,
+ .l1_table_offset = qed_opts->cluster_size,
+ .image_size = qed_opts->size,
+ };
+
+ l1_size = header.cluster_size * header.table_size;
+
/* File must start empty and grow, check truncate is supported */
ret = blk_truncate(blk, 0, PREALLOC_MODE_OFF, errp);
if (ret < 0) {
goto out;
}
- if (backing_file) {
+ if (qed_opts->has_backing_file) {
header.features |= QED_F_BACKING_FILE;
header.backing_filename_offset = sizeof(le_header);
- header.backing_filename_size = strlen(backing_file);
+ header.backing_filename_size = strlen(qed_opts->backing_file);
- if (qed_fmt_is_raw(backing_fmt)) {
- header.features |= QED_F_BACKING_FORMAT_NO_PROBE;
+ if (qed_opts->has_backing_fmt) {
+ const char *backing_fmt = BlockdevDriver_str(qed_opts->backing_fmt);
+ if (qed_fmt_is_raw(backing_fmt)) {
+ header.features |= QED_F_BACKING_FORMAT_NO_PROBE;
+ }
}
}
if (ret < 0) {
goto out;
}
- ret = blk_pwrite(blk, sizeof(le_header), backing_file,
+ ret = blk_pwrite(blk, sizeof(le_header), qed_opts->backing_file,
header.backing_filename_size, 0);
if (ret < 0) {
goto out;
out:
g_free(l1_table);
blk_unref(blk);
+ bdrv_unref(bs);
return ret;
}
QemuOpts *opts,
Error **errp)
{
- uint64_t image_size = 0;
- uint32_t cluster_size = QED_DEFAULT_CLUSTER_SIZE;
- uint32_t table_size = QED_DEFAULT_TABLE_SIZE;
- char *backing_file = NULL;
- char *backing_fmt = NULL;
+ BlockdevCreateOptions *create_options = NULL;
+ QDict *qdict;
+ Visitor *v;
+ BlockDriverState *bs = NULL;
+ Error *local_err = NULL;
int ret;
- image_size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
- BDRV_SECTOR_SIZE);
- backing_file = qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FILE);
- backing_fmt = qemu_opt_get_del(opts, BLOCK_OPT_BACKING_FMT);
- cluster_size = qemu_opt_get_size_del(opts,
- BLOCK_OPT_CLUSTER_SIZE,
- QED_DEFAULT_CLUSTER_SIZE);
- table_size = qemu_opt_get_size_del(opts, BLOCK_OPT_TABLE_SIZE,
- QED_DEFAULT_TABLE_SIZE);
-
- if (!qed_is_cluster_size_valid(cluster_size)) {
- error_setg(errp, "QED cluster size must be within range [%u, %u] "
- "and power of 2",
- QED_MIN_CLUSTER_SIZE, QED_MAX_CLUSTER_SIZE);
+ static const QDictRenames opt_renames[] = {
+ { BLOCK_OPT_BACKING_FILE, "backing-file" },
+ { BLOCK_OPT_BACKING_FMT, "backing-fmt" },
+ { BLOCK_OPT_CLUSTER_SIZE, "cluster-size" },
+ { BLOCK_OPT_TABLE_SIZE, "table-size" },
+ { NULL, NULL },
+ };
+
+ /* Parse options and convert legacy syntax */
+ qdict = qemu_opts_to_qdict_filtered(opts, NULL, &qed_create_opts, true);
+
+ if (!qdict_rename_keys(qdict, opt_renames, errp)) {
ret = -EINVAL;
- goto finish;
+ goto fail;
}
- if (!qed_is_table_size_valid(table_size)) {
- error_setg(errp, "QED table size must be within range [%u, %u] "
- "and power of 2",
- QED_MIN_TABLE_SIZE, QED_MAX_TABLE_SIZE);
+
+ /* Create and open the file (protocol layer) */
+ ret = bdrv_create_file(filename, opts, &local_err);
+ if (ret < 0) {
+ error_propagate(errp, local_err);
+ goto fail;
+ }
+
+ bs = bdrv_open(filename, NULL, NULL,
+ BDRV_O_RDWR | BDRV_O_RESIZE | BDRV_O_PROTOCOL, errp);
+ if (bs == NULL) {
+ ret = -EIO;
+ goto fail;
+ }
+
+ /* Now get the QAPI type BlockdevCreateOptions */
+ qdict_put_str(qdict, "driver", "qed");
+ qdict_put_str(qdict, "file", bs->node_name);
+
+ v = qobject_input_visitor_new_flat_confused(qdict, errp);
+ if (!v) {
ret = -EINVAL;
- goto finish;
+ goto fail;
}
- if (!qed_is_image_size_valid(image_size, cluster_size, table_size)) {
- error_setg(errp, "QED image size must be a non-zero multiple of "
- "cluster size and less than %" PRIu64 " bytes",
- qed_max_image_size(cluster_size, table_size));
+
+ visit_type_BlockdevCreateOptions(v, NULL, &create_options, &local_err);
+ visit_free(v);
+
+ if (local_err) {
+ error_propagate(errp, local_err);
ret = -EINVAL;
- goto finish;
+ goto fail;
}
- ret = qed_create(filename, cluster_size, image_size, table_size,
- backing_file, backing_fmt, opts, errp);
+ /* Silently round up size */
+ assert(create_options->driver == BLOCKDEV_DRIVER_QED);
+ create_options->u.qed.size =
+ ROUND_UP(create_options->u.qed.size, BDRV_SECTOR_SIZE);
+
+ /* Create the qed image (format layer) */
+ ret = bdrv_qed_co_create(create_options, errp);
-finish:
- g_free(backing_file);
- g_free(backing_fmt);
+fail:
+ qobject_unref(qdict);
+ bdrv_unref(bs);
+ qapi_free_BlockdevCreateOptions(create_options);
return ret;
}
static int coroutine_fn bdrv_qed_co_writev(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
- QEMUIOVector *qiov)
+ QEMUIOVector *qiov, int flags)
{
+ assert(!flags);
return qed_co_request(bs, sector_num, qiov, nb_sectors, QED_AIOCB_WRITE);
}
QED_AIOCB_WRITE | QED_AIOCB_ZERO);
}
-static int bdrv_qed_truncate(BlockDriverState *bs, int64_t offset,
- PreallocMode prealloc, Error **errp)
+static int coroutine_fn bdrv_qed_co_truncate(BlockDriverState *bs,
+ int64_t offset,
+ PreallocMode prealloc,
+ Error **errp)
{
BDRVQEDState *s = bs->opaque;
uint64_t old_image_size;
.bdrv_close = bdrv_qed_close,
.bdrv_reopen_prepare = bdrv_qed_reopen_prepare,
.bdrv_child_perm = bdrv_format_default_perms,
+ .bdrv_co_create = bdrv_qed_co_create,
.bdrv_co_create_opts = bdrv_qed_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_co_block_status = bdrv_qed_co_block_status,
.bdrv_co_readv = bdrv_qed_co_readv,
.bdrv_co_writev = bdrv_qed_co_writev,
.bdrv_co_pwrite_zeroes = bdrv_qed_co_pwrite_zeroes,
- .bdrv_truncate = bdrv_qed_truncate,
+ .bdrv_co_truncate = bdrv_qed_co_truncate,
.bdrv_getlength = bdrv_qed_getlength,
.bdrv_get_info = bdrv_qed_get_info,
.bdrv_refresh_limits = bdrv_qed_refresh_limits,
projects / qemu.git / blobdiff