diff options
Diffstat (limited to 'block/qcow.c')
| -rw-r--r-- | block/qcow.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/block/qcow.c b/block/qcow.c index 1cf7c3be77..6ecf2e8e03 100644 --- a/block/qcow.c +++ b/block/qcow.c @@ -767,12 +767,26 @@ static void qcow_close(BlockDriverState *bs) bdrv_delete(s->hd); } -static int qcow_create(const char *filename, int64_t total_size, - const char *backing_file, int flags) +static int qcow_create(const char *filename, QEMUOptionParameter *options) { int fd, header_size, backing_filename_len, l1_size, i, shift; QCowHeader header; uint64_t tmp; + int64_t total_size = 0; + const char *backing_file = NULL; + int flags = 0; + + /* Read out options */ + while (options && options->name) { + if (!strcmp(options->name, BLOCK_OPT_SIZE)) { + total_size = options->value.n / 512; + } else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) { + backing_file = options->value.s; + } else if (!strcmp(options->name, BLOCK_OPT_ENCRYPT)) { + flags |= options->value.n ? BLOCK_FLAG_ENCRYPT : 0; + } + options++; + } fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644); if (fd < 0) @@ -918,6 +932,14 @@ static int qcow_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return 0; } + +static QEMUOptionParameter qcow_create_options[] = { + { BLOCK_OPT_SIZE, OPT_SIZE }, + { BLOCK_OPT_BACKING_FILE, OPT_STRING }, + { BLOCK_OPT_ENCRYPT, OPT_FLAG }, + { NULL } +}; + static BlockDriver bdrv_qcow = { .format_name = "qcow", .instance_size = sizeof(BDRVQcowState), @@ -935,6 +957,8 @@ static BlockDriver bdrv_qcow = { .aiocb_size = sizeof(QCowAIOCB), .bdrv_write_compressed = qcow_write_compressed, .bdrv_get_info = qcow_get_info, + + .create_options = qcow_create_options, }; static void bdrv_qcow_init(void) |