*/
#define MISALIGN_OFFSET 16
-static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern)
+static void *qemu_io_alloc(BlockBackend *blk, size_t len, int pattern,
+ bool register_buf)
{
void *buf;
}
buf = blk_blockalign(blk, len);
memset(buf, pattern, len);
+ if (register_buf) {
+ blk_register_buf(blk, buf, len, &error_abort);
+ }
if (qemuio_misalign) {
buf += MISALIGN_OFFSET;
}
return buf;
}
-static void qemu_io_free(void *p)
+static void qemu_io_free(BlockBackend *blk, void *p, size_t len,
+ bool unregister_buf)
{
if (qemuio_misalign) {
p -= MISALIGN_OFFSET;
+ len += MISALIGN_OFFSET;
+ }
+ if (unregister_buf) {
+ blk_unregister_buf(blk, p, len);
}
qemu_vfree(p);
}
* @blk - the block backend where the buffer content is going to be written to
* @len - the buffer length
* @file_name - the file to read the content from
+ * @register_buf - call blk_register_buf()
*
* Returns: the buffer pointer on success
* NULL on error
*/
static void *qemu_io_alloc_from_file(BlockBackend *blk, size_t len,
- const char *file_name)
+ const char *file_name, bool register_buf)
{
- char *buf, *buf_origin;
+ size_t alloc_len = len + (qemuio_misalign ? MISALIGN_OFFSET : 0);
+ char *alloc_buf, *buf, *end;
FILE *f = fopen(file_name, "r");
int pattern_len;
return NULL;
}
- if (qemuio_misalign) {
- len += MISALIGN_OFFSET;
- }
-
- buf_origin = buf = blk_blockalign(blk, len);
+ alloc_buf = buf = blk_blockalign(blk, alloc_len);
if (qemuio_misalign) {
- buf_origin += MISALIGN_OFFSET;
buf += MISALIGN_OFFSET;
- len -= MISALIGN_OFFSET;
}
- pattern_len = fread(buf_origin, 1, len, f);
+ pattern_len = fread(buf, 1, len, f);
if (ferror(f)) {
perror(file_name);
fclose(f);
f = NULL;
- if (len > pattern_len) {
- len -= pattern_len;
- buf += pattern_len;
-
- while (len > 0) {
- size_t len_to_copy = MIN(pattern_len, len);
-
- memcpy(buf, buf_origin, len_to_copy);
+ if (register_buf) {
+ blk_register_buf(blk, alloc_buf, alloc_len, &error_abort);
+ }
- len -= len_to_copy;
- buf += len_to_copy;
- }
+ end = buf + len;
+ for (char *p = buf + pattern_len; p < end; p += pattern_len) {
+ memcpy(p, buf, MIN(pattern_len, end - p));
}
- return buf_origin;
+ return buf;
error:
- qemu_io_free(buf_origin);
+ /*
+ * This code path is only taken before blk_register_buf() is called, so
+ * hardcode the qemu_io_free() unregister_buf argument to false.
+ */
+ qemu_io_free(blk, alloc_buf, alloc_len, false);
if (f) {
fclose(f);
}
*/
static void *
create_iovec(BlockBackend *blk, QEMUIOVector *qiov, char **argv, int nr_iov,
- int pattern)
+ int pattern, bool register_buf)
{
size_t *sizes = g_new0(size_t, nr_iov);
size_t count = 0;
qemu_iovec_init(qiov, nr_iov);
- buf = p = qemu_io_alloc(blk, count, pattern);
+ buf = p = qemu_io_alloc(blk, count, pattern, register_buf);
for (i = 0; i < nr_iov; i++) {
qemu_iovec_add(qiov, p, sizes[i]);
}
static int do_pread(BlockBackend *blk, char *buf, int64_t offset,
- int64_t bytes, int64_t *total)
+ int64_t bytes, BdrvRequestFlags flags, int64_t *total)
{
int ret;
return -ERANGE;
}
- ret = blk_pread(blk, offset, bytes, (uint8_t *)buf, 0);
+ ret = blk_pread(blk, offset, bytes, (uint8_t *)buf, flags);
if (ret < 0) {
return ret;
}
}
static int do_pwrite(BlockBackend *blk, char *buf, int64_t offset,
- int64_t bytes, int flags, int64_t *total)
+ int64_t bytes, BdrvRequestFlags flags, int64_t *total)
{
int ret;
return 1;
}
-typedef struct {
- BlockBackend *blk;
- int64_t offset;
- int64_t bytes;
- int64_t *total;
- int flags;
- int ret;
- bool done;
-} CoWriteZeroes;
-
-static void coroutine_fn co_pwrite_zeroes_entry(void *opaque)
+static int do_pwrite_zeroes(BlockBackend *blk, int64_t offset,
+ int64_t bytes, BdrvRequestFlags flags,
+ int64_t *total)
{
- CoWriteZeroes *data = opaque;
+ int ret = blk_pwrite_zeroes(blk, offset, bytes,
+ flags | BDRV_REQ_ZERO_WRITE);
- data->ret = blk_co_pwrite_zeroes(data->blk, data->offset, data->bytes,
- data->flags);
- data->done = true;
- if (data->ret < 0) {
- *data->total = data->ret;
- return;
- }
-
- *data->total = data->bytes;
-}
-
-static int do_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
- int64_t bytes, int flags, int64_t *total)
-{
- Coroutine *co;
- CoWriteZeroes data = {
- .blk = blk,
- .offset = offset,
- .bytes = bytes,
- .total = total,
- .flags = flags,
- .done = false,
- };
-
- co = qemu_coroutine_create(co_pwrite_zeroes_entry, &data);
- bdrv_coroutine_enter(blk_bs(blk), co);
- while (!data.done) {
- aio_poll(blk_get_aio_context(blk), true);
- }
- if (data.ret < 0) {
- return data.ret;
- } else {
- return 1;
+ if (ret < 0) {
+ return ret;
}
+ *total = bytes;
+ return 1;
}
static int do_write_compressed(BlockBackend *blk, char *buf, int64_t offset,
return -ERANGE;
}
- ret = blk_pwrite_compressed(blk, offset, buf, bytes);
+ ret = blk_pwrite_compressed(blk, offset, bytes, buf);
if (ret < 0) {
return ret;
}
}
static int do_aio_readv(BlockBackend *blk, QEMUIOVector *qiov,
- int64_t offset, int *total)
+ int64_t offset, BdrvRequestFlags flags, int *total)
{
int async_ret = NOT_DONE;
- blk_aio_preadv(blk, offset, qiov, 0, aio_rw_done, &async_ret);
+ blk_aio_preadv(blk, offset, qiov, flags, aio_rw_done, &async_ret);
while (async_ret == NOT_DONE) {
main_loop_wait(false);
}
}
static int do_aio_writev(BlockBackend *blk, QEMUIOVector *qiov,
- int64_t offset, int flags, int *total)
+ int64_t offset, BdrvRequestFlags flags, int *total)
{
int async_ret = NOT_DONE;
" -p, -- ignored for backwards compatibility\n"
" -P, -- use a pattern to verify read data\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
" -s, -- start offset for pattern verification (only with -P)\n"
" -v, -- dump buffer to standard output\n"
"\n");
.cfunc = read_f,
.argmin = 2,
.argmax = -1,
- .args = "[-abCqv] [-P pattern [-s off] [-l len]] off len",
+ .args = "[-abCqrv] [-P pattern [-s off] [-l len]] off len",
.oneline = "reads a number of bytes at a specified offset",
.help = read_help,
};
int64_t total = 0;
int pattern = 0;
int64_t pattern_offset = 0, pattern_count = 0;
+ BdrvRequestFlags flags = 0;
- while ((c = getopt(argc, argv, "bCl:pP:qs:v")) != -1) {
+ while ((c = getopt(argc, argv, "bCl:pP:qrs:v")) != -1) {
switch (c) {
case 'b':
bflag = true;
case 'q':
qflag = true;
break;
+ case 'r':
+ flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 's':
sflag = true;
pattern_offset = cvtnum(optarg);
count);
return -EINVAL;
}
+ if (flags & BDRV_REQ_REGISTERED_BUF) {
+ printf("I/O buffer registration is not supported when reading "
+ "from vmstate\n");
+ return -EINVAL;
+ }
}
- buf = qemu_io_alloc(blk, count, 0xab);
+ buf = qemu_io_alloc(blk, count, 0xab, flags & BDRV_REQ_REGISTERED_BUF);
clock_gettime(CLOCK_MONOTONIC, &t1);
if (bflag) {
ret = do_load_vmstate(blk, buf, offset, count, &total);
} else {
- ret = do_pread(blk, buf, offset, count, &total);
+ ret = do_pread(blk, buf, offset, count, flags, &total);
}
clock_gettime(CLOCK_MONOTONIC, &t2);
print_report("read", &t2, offset, count, total, cnt, Cflag);
out:
- qemu_io_free(buf);
+ qemu_io_free(blk, buf, count, flags & BDRV_REQ_REGISTERED_BUF);
return ret;
}
" Uses multiple iovec buffers if more than one byte range is specified.\n"
" -C, -- report statistics in a machine parsable format\n"
" -P, -- use a pattern to verify read data\n"
-" -v, -- dump buffer to standard output\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
+" -v, -- dump buffer to standard output\n"
"\n");
}
.cfunc = readv_f,
.argmin = 2,
.argmax = -1,
- .args = "[-Cqv] [-P pattern] off len [len..]",
+ .args = "[-Cqrv] [-P pattern] off len [len..]",
.oneline = "reads a number of bytes at a specified offset",
.help = readv_help,
};
QEMUIOVector qiov;
int pattern = 0;
bool Pflag = false;
+ BdrvRequestFlags flags = 0;
- while ((c = getopt(argc, argv, "CP:qv")) != -1) {
+ while ((c = getopt(argc, argv, "CP:qrv")) != -1) {
switch (c) {
case 'C':
Cflag = true;
case 'q':
qflag = true;
break;
+ case 'r':
+ flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 'v':
vflag = true;
break;
optind++;
nr_iov = argc - optind;
- buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab);
+ buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, 0xab,
+ flags & BDRV_REQ_REGISTERED_BUF);
if (buf == NULL) {
return -EINVAL;
}
clock_gettime(CLOCK_MONOTONIC, &t1);
- ret = do_aio_readv(blk, &qiov, offset, &total);
+ ret = do_aio_readv(blk, &qiov, offset, flags, &total);
clock_gettime(CLOCK_MONOTONIC, &t2);
if (ret < 0) {
print_report("read", &t2, offset, qiov.size, total, cnt, Cflag);
out:
+ qemu_io_free(blk, buf, qiov.size, flags & BDRV_REQ_REGISTERED_BUF);
qemu_iovec_destroy(&qiov);
- qemu_io_free(buf);
return ret;
}
" filled with a set pattern (0xcdcdcdcd).\n"
" -b, -- write to the VM state rather than the virtual disk\n"
" -c, -- write compressed data with blk_write_compressed\n"
+" -C, -- report statistics in a machine parsable format\n"
" -f, -- use Force Unit Access semantics\n"
" -n, -- with -z, don't allow slow fallback\n"
" -p, -- ignored for backwards compatibility\n"
" -P, -- use different pattern to fill file\n"
-" -s, -- use a pattern file to fill the write buffer\n"
-" -C, -- report statistics in a machine parsable format\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
+" -s, -- use a pattern file to fill the write buffer\n"
" -u, -- with -z, allow unmapping\n"
-" -z, -- write zeroes using blk_co_pwrite_zeroes\n"
+" -z, -- write zeroes using blk_pwrite_zeroes\n"
"\n");
}
.perm = BLK_PERM_WRITE,
.argmin = 2,
.argmax = -1,
- .args = "[-bcCfnquz] [-P pattern | -s source_file] off len",
+ .args = "[-bcCfnqruz] [-P pattern | -s source_file] off len",
.oneline = "writes a number of bytes at a specified offset",
.help = write_help,
};
struct timespec t1, t2;
bool Cflag = false, qflag = false, bflag = false;
bool Pflag = false, zflag = false, cflag = false, sflag = false;
- int flags = 0;
+ BdrvRequestFlags flags = 0;
int c, cnt, ret;
char *buf = NULL;
int64_t offset;
int pattern = 0xcd;
const char *file_name = NULL;
- while ((c = getopt(argc, argv, "bcCfnpP:qs:uz")) != -1) {
+ while ((c = getopt(argc, argv, "bcCfnpP:qrs:uz")) != -1) {
switch (c) {
case 'b':
bflag = true;
case 'q':
qflag = true;
break;
+ case 'r':
+ flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 's':
sflag = true;
file_name = optarg;
}
}
- if (!zflag) {
+ if (zflag) {
+ if (flags & BDRV_REQ_REGISTERED_BUF) {
+ printf("cannot combine zero write with registered I/O buffer\n");
+ return -EINVAL;
+ }
+ } else {
if (sflag) {
- buf = qemu_io_alloc_from_file(blk, count, file_name);
+ buf = qemu_io_alloc_from_file(blk, count, file_name,
+ flags & BDRV_REQ_REGISTERED_BUF);
if (!buf) {
return -EINVAL;
}
} else {
- buf = qemu_io_alloc(blk, count, pattern);
+ buf = qemu_io_alloc(blk, count, pattern,
+ flags & BDRV_REQ_REGISTERED_BUF);
}
}
if (bflag) {
ret = do_save_vmstate(blk, buf, offset, count, &total);
} else if (zflag) {
- ret = do_co_pwrite_zeroes(blk, offset, count, flags, &total);
+ ret = do_pwrite_zeroes(blk, offset, count, flags, &total);
} else if (cflag) {
ret = do_write_compressed(blk, buf, offset, count, &total);
} else {
out:
if (!zflag) {
- qemu_io_free(buf);
+ qemu_io_free(blk, buf, count, flags & BDRV_REQ_REGISTERED_BUF);
}
return ret;
}
"\n"
" Writes into a segment of the currently open file, using a buffer\n"
" filled with a set pattern (0xcdcdcdcd).\n"
-" -P, -- use different pattern to fill file\n"
" -C, -- report statistics in a machine parsable format\n"
" -f, -- use Force Unit Access semantics\n"
+" -P, -- use different pattern to fill file\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
"\n");
}
.perm = BLK_PERM_WRITE,
.argmin = 2,
.argmax = -1,
- .args = "[-Cfq] [-P pattern] off len [len..]",
+ .args = "[-Cfqr] [-P pattern] off len [len..]",
.oneline = "writes a number of bytes at a specified offset",
.help = writev_help,
};
{
struct timespec t1, t2;
bool Cflag = false, qflag = false;
- int flags = 0;
+ BdrvRequestFlags flags = 0;
int c, cnt, ret;
char *buf;
int64_t offset;
int pattern = 0xcd;
QEMUIOVector qiov;
- while ((c = getopt(argc, argv, "CfqP:")) != -1) {
+ while ((c = getopt(argc, argv, "CfP:qr")) != -1) {
switch (c) {
case 'C':
Cflag = true;
case 'q':
qflag = true;
break;
+ case 'r':
+ flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 'P':
pattern = parse_pattern(optarg);
if (pattern < 0) {
optind++;
nr_iov = argc - optind;
- buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern);
+ buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern,
+ flags & BDRV_REQ_REGISTERED_BUF);
if (buf == NULL) {
return -EINVAL;
}
t2 = tsub(t2, t1);
print_report("wrote", &t2, offset, qiov.size, total, cnt, Cflag);
out:
+ qemu_io_free(blk, buf, qiov.size, flags & BDRV_REQ_REGISTERED_BUF);
qemu_iovec_destroy(&qiov);
- qemu_io_free(buf);
return ret;
}
bool zflag;
BlockAcctCookie acct;
int pattern;
+ BdrvRequestFlags flags;
struct timespec t1;
};
ctx->qiov.size, 1, ctx->Cflag);
out:
if (!ctx->zflag) {
- qemu_io_free(ctx->buf);
+ qemu_io_free(ctx->blk, ctx->buf, ctx->qiov.size,
+ ctx->flags & BDRV_REQ_REGISTERED_BUF);
qemu_iovec_destroy(&ctx->qiov);
}
g_free(ctx);
print_report("read", &t2, ctx->offset, ctx->qiov.size,
ctx->qiov.size, 1, ctx->Cflag);
out:
- qemu_io_free(ctx->buf);
+ qemu_io_free(ctx->blk, ctx->buf, ctx->qiov.size,
+ ctx->flags & BDRV_REQ_REGISTERED_BUF);
qemu_iovec_destroy(&ctx->qiov);
g_free(ctx);
}
" considered successful once the request is submitted, independently\n"
" of potential I/O errors or pattern mismatches.\n"
" -C, -- report statistics in a machine parsable format\n"
-" -P, -- use a pattern to verify read data\n"
" -i, -- treat request as invalid, for exercising stats\n"
-" -v, -- dump buffer to standard output\n"
+" -P, -- use a pattern to verify read data\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
+" -v, -- dump buffer to standard output\n"
"\n");
}
.cfunc = aio_read_f,
.argmin = 2,
.argmax = -1,
- .args = "[-Ciqv] [-P pattern] off len [len..]",
+ .args = "[-Ciqrv] [-P pattern] off len [len..]",
.oneline = "asynchronously reads a number of bytes",
.help = aio_read_help,
};
struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
ctx->blk = blk;
- while ((c = getopt(argc, argv, "CP:iqv")) != -1) {
+ while ((c = getopt(argc, argv, "CiP:qrv")) != -1) {
switch (c) {
case 'C':
ctx->Cflag = true;
case 'q':
ctx->qflag = true;
break;
+ case 'r':
+ ctx->flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 'v':
ctx->vflag = true;
break;
optind++;
nr_iov = argc - optind;
- ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab);
+ ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov, 0xab,
+ ctx->flags & BDRV_REQ_REGISTERED_BUF);
if (ctx->buf == NULL) {
block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_READ);
g_free(ctx);
clock_gettime(CLOCK_MONOTONIC, &ctx->t1);
block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size,
BLOCK_ACCT_READ);
- blk_aio_preadv(blk, ctx->offset, &ctx->qiov, 0, aio_read_done, ctx);
+ blk_aio_preadv(blk, ctx->offset, &ctx->qiov, ctx->flags, aio_read_done,
+ ctx);
return 0;
}
" Note that due to its asynchronous nature, this command will be\n"
" considered successful once the request is submitted, independently\n"
" of potential I/O errors or pattern mismatches.\n"
-" -P, -- use different pattern to fill file\n"
" -C, -- report statistics in a machine parsable format\n"
" -f, -- use Force Unit Access semantics\n"
" -i, -- treat request as invalid, for exercising stats\n"
+" -P, -- use different pattern to fill file\n"
" -q, -- quiet mode, do not show I/O statistics\n"
+" -r, -- register I/O buffer\n"
" -u, -- with -z, allow unmapping\n"
" -z, -- write zeroes using blk_aio_pwrite_zeroes\n"
"\n");
.perm = BLK_PERM_WRITE,
.argmin = 2,
.argmax = -1,
- .args = "[-Cfiquz] [-P pattern] off len [len..]",
+ .args = "[-Cfiqruz] [-P pattern] off len [len..]",
.oneline = "asynchronously writes a number of bytes",
.help = aio_write_help,
};
int nr_iov, c;
int pattern = 0xcd;
struct aio_ctx *ctx = g_new0(struct aio_ctx, 1);
- int flags = 0;
ctx->blk = blk;
- while ((c = getopt(argc, argv, "CfiqP:uz")) != -1) {
+ while ((c = getopt(argc, argv, "CfiP:qruz")) != -1) {
switch (c) {
case 'C':
ctx->Cflag = true;
break;
case 'f':
- flags |= BDRV_REQ_FUA;
+ ctx->flags |= BDRV_REQ_FUA;
break;
case 'q':
ctx->qflag = true;
break;
+ case 'r':
+ ctx->flags |= BDRV_REQ_REGISTERED_BUF;
+ break;
case 'u':
- flags |= BDRV_REQ_MAY_UNMAP;
+ ctx->flags |= BDRV_REQ_MAY_UNMAP;
break;
case 'P':
pattern = parse_pattern(optarg);
return -EINVAL;
}
- if ((flags & BDRV_REQ_MAY_UNMAP) && !ctx->zflag) {
+ if ((ctx->flags & BDRV_REQ_MAY_UNMAP) && !ctx->zflag) {
printf("-u requires -z to be specified\n");
g_free(ctx);
return -EINVAL;
return -EINVAL;
}
+ if (ctx->zflag && (ctx->flags & BDRV_REQ_REGISTERED_BUF)) {
+ printf("cannot combine zero write with registered I/O buffer\n");
+ g_free(ctx);
+ return -EINVAL;
+ }
+
ctx->offset = cvtnum(argv[optind]);
if (ctx->offset < 0) {
int ret = ctx->offset;
}
ctx->qiov.size = count;
- blk_aio_pwrite_zeroes(blk, ctx->offset, count, flags, aio_write_done,
- ctx);
+ blk_aio_pwrite_zeroes(blk, ctx->offset, count, ctx->flags,
+ aio_write_done, ctx);
} else {
nr_iov = argc - optind;
ctx->buf = create_iovec(blk, &ctx->qiov, &argv[optind], nr_iov,
- pattern);
+ pattern, ctx->flags & BDRV_REQ_REGISTERED_BUF);
if (ctx->buf == NULL) {
block_acct_invalid(blk_get_stats(blk), BLOCK_ACCT_WRITE);
g_free(ctx);
block_acct_start(blk_get_stats(blk), &ctx->acct, ctx->qiov.size,
BLOCK_ACCT_WRITE);
- blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, flags, aio_write_done,
- ctx);
+ blk_aio_pwritev(blk, ctx->offset, &ctx->qiov, ctx->flags,
+ aio_write_done, ctx);
}
return 0;
.oneline = "flush all in-core file state to disk",
};
+static inline int64_t tosector(int64_t bytes)
+{
+ return bytes >> BDRV_SECTOR_BITS;
+}
+
+static int zone_report_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ int64_t offset;
+ unsigned int nr_zones;
+
+ ++optind;
+ offset = cvtnum(argv[optind]);
+ ++optind;
+ nr_zones = cvtnum(argv[optind]);
+
+ g_autofree BlockZoneDescriptor *zones = NULL;
+ zones = g_new(BlockZoneDescriptor, nr_zones);
+ ret = blk_zone_report(blk, offset, &nr_zones, zones);
+ if (ret < 0) {
+ printf("zone report failed: %s\n", strerror(-ret));
+ } else {
+ for (int i = 0; i < nr_zones; ++i) {
+ printf("start: 0x%" PRIx64 ", len 0x%" PRIx64 ", "
+ "cap"" 0x%" PRIx64 ", wptr 0x%" PRIx64 ", "
+ "zcond:%u, [type: %u]\n",
+ tosector(zones[i].start), tosector(zones[i].length),
+ tosector(zones[i].cap), tosector(zones[i].wp),
+ zones[i].state, zones[i].type);
+ }
+ }
+ return ret;
+}
+
+static const cmdinfo_t zone_report_cmd = {
+ .name = "zone_report",
+ .altname = "zrp",
+ .cfunc = zone_report_f,
+ .argmin = 2,
+ .argmax = 2,
+ .args = "offset number",
+ .oneline = "report zone information",
+};
+
+static int zone_open_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ int64_t offset, len;
+ ++optind;
+ offset = cvtnum(argv[optind]);
+ ++optind;
+ len = cvtnum(argv[optind]);
+ ret = blk_zone_mgmt(blk, BLK_ZO_OPEN, offset, len);
+ if (ret < 0) {
+ printf("zone open failed: %s\n", strerror(-ret));
+ }
+ return ret;
+}
+
+static const cmdinfo_t zone_open_cmd = {
+ .name = "zone_open",
+ .altname = "zo",
+ .cfunc = zone_open_f,
+ .argmin = 2,
+ .argmax = 2,
+ .args = "offset len",
+ .oneline = "explicit open a range of zones in zone block device",
+};
+
+static int zone_close_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ int64_t offset, len;
+ ++optind;
+ offset = cvtnum(argv[optind]);
+ ++optind;
+ len = cvtnum(argv[optind]);
+ ret = blk_zone_mgmt(blk, BLK_ZO_CLOSE, offset, len);
+ if (ret < 0) {
+ printf("zone close failed: %s\n", strerror(-ret));
+ }
+ return ret;
+}
+
+static const cmdinfo_t zone_close_cmd = {
+ .name = "zone_close",
+ .altname = "zc",
+ .cfunc = zone_close_f,
+ .argmin = 2,
+ .argmax = 2,
+ .args = "offset len",
+ .oneline = "close a range of zones in zone block device",
+};
+
+static int zone_finish_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ int64_t offset, len;
+ ++optind;
+ offset = cvtnum(argv[optind]);
+ ++optind;
+ len = cvtnum(argv[optind]);
+ ret = blk_zone_mgmt(blk, BLK_ZO_FINISH, offset, len);
+ if (ret < 0) {
+ printf("zone finish failed: %s\n", strerror(-ret));
+ }
+ return ret;
+}
+
+static const cmdinfo_t zone_finish_cmd = {
+ .name = "zone_finish",
+ .altname = "zf",
+ .cfunc = zone_finish_f,
+ .argmin = 2,
+ .argmax = 2,
+ .args = "offset len",
+ .oneline = "finish a range of zones in zone block device",
+};
+
+static int zone_reset_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ int64_t offset, len;
+ ++optind;
+ offset = cvtnum(argv[optind]);
+ ++optind;
+ len = cvtnum(argv[optind]);
+ ret = blk_zone_mgmt(blk, BLK_ZO_RESET, offset, len);
+ if (ret < 0) {
+ printf("zone reset failed: %s\n", strerror(-ret));
+ }
+ return ret;
+}
+
+static const cmdinfo_t zone_reset_cmd = {
+ .name = "zone_reset",
+ .altname = "zrs",
+ .cfunc = zone_reset_f,
+ .argmin = 2,
+ .argmax = 2,
+ .args = "offset len",
+ .oneline = "reset a zone write pointer in zone block device",
+};
+
+static int do_aio_zone_append(BlockBackend *blk, QEMUIOVector *qiov,
+ int64_t *offset, int flags, int *total)
+{
+ int async_ret = NOT_DONE;
+
+ blk_aio_zone_append(blk, offset, qiov, flags, aio_rw_done, &async_ret);
+ while (async_ret == NOT_DONE) {
+ main_loop_wait(false);
+ }
+
+ *total = qiov->size;
+ return async_ret < 0 ? async_ret : 1;
+}
+
+static int zone_append_f(BlockBackend *blk, int argc, char **argv)
+{
+ int ret;
+ bool pflag = false;
+ int flags = 0;
+ int total = 0;
+ int64_t offset;
+ char *buf;
+ int c, nr_iov;
+ int pattern = 0xcd;
+ QEMUIOVector qiov;
+
+ if (optind > argc - 3) {
+ return -EINVAL;
+ }
+
+ if ((c = getopt(argc, argv, "p")) != -1) {
+ pflag = true;
+ }
+
+ offset = cvtnum(argv[optind]);
+ if (offset < 0) {
+ print_cvtnum_err(offset, argv[optind]);
+ return offset;
+ }
+ optind++;
+ nr_iov = argc - optind;
+ buf = create_iovec(blk, &qiov, &argv[optind], nr_iov, pattern,
+ flags & BDRV_REQ_REGISTERED_BUF);
+ if (buf == NULL) {
+ return -EINVAL;
+ }
+ ret = do_aio_zone_append(blk, &qiov, &offset, flags, &total);
+ if (ret < 0) {
+ printf("zone append failed: %s\n", strerror(-ret));
+ goto out;
+ }
+
+ if (pflag) {
+ printf("After zap done, the append sector is 0x%" PRIx64 "\n",
+ tosector(offset));
+ }
+
+out:
+ qemu_io_free(blk, buf, qiov.size,
+ flags & BDRV_REQ_REGISTERED_BUF);
+ qemu_iovec_destroy(&qiov);
+ return ret;
+}
+
+static const cmdinfo_t zone_append_cmd = {
+ .name = "zone_append",
+ .altname = "zap",
+ .cfunc = zone_append_f,
+ .argmin = 3,
+ .argmax = 4,
+ .args = "offset len [len..]",
+ .oneline = "append write a number of bytes at a specified offset",
+};
+
static int truncate_f(BlockBackend *blk, int argc, char **argv);
static const cmdinfo_t truncate_cmd = {
.name = "truncate",
return -EIO;
}
if (spec_info) {
- printf("Format specific information:\n");
- bdrv_image_info_specific_dump(spec_info);
+ bdrv_image_info_specific_dump(spec_info,
+ "Format specific information:\n",
+ 0);
qapi_free_ImageInfoSpecific(spec_info);
}
qemuio_add_command(&aio_write_cmd);
qemuio_add_command(&aio_flush_cmd);
qemuio_add_command(&flush_cmd);
+ qemuio_add_command(&zone_report_cmd);
+ qemuio_add_command(&zone_open_cmd);
+ qemuio_add_command(&zone_close_cmd);
+ qemuio_add_command(&zone_finish_cmd);
+ qemuio_add_command(&zone_reset_cmd);
+ qemuio_add_command(&zone_append_cmd);
qemuio_add_command(&truncate_cmd);
qemuio_add_command(&length_cmd);
qemuio_add_command(&info_cmd);