diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/vpc.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/block/vpc.c b/block/vpc.c index 3cad52e54c..fe4f311d50 100644 --- a/block/vpc.c +++ b/block/vpc.c @@ -786,6 +786,18 @@ static int vpc_create(const char *filename, QEMUOptionParameter *options) return ret; } +static int vpc_has_zero_init(BlockDriverState *bs) +{ + BDRVVPCState *s = bs->opaque; + struct vhd_footer *footer = (struct vhd_footer *) s->footer_buf; + + if (cpu_to_be32(footer->type) == VHD_FIXED) { + return bdrv_has_zero_init(bs->file); + } else { + return 1; + } +} + static void vpc_close(BlockDriverState *bs) { BDRVVPCState *s = bs->opaque; @@ -818,16 +830,17 @@ static BlockDriver bdrv_vpc = { .format_name = "vpc", .instance_size = sizeof(BDRVVPCState), - .bdrv_probe = vpc_probe, - .bdrv_open = vpc_open, - .bdrv_close = vpc_close, - .bdrv_reopen_prepare = vpc_reopen_prepare, - .bdrv_create = vpc_create, + .bdrv_probe = vpc_probe, + .bdrv_open = vpc_open, + .bdrv_close = vpc_close, + .bdrv_reopen_prepare = vpc_reopen_prepare, + .bdrv_create = vpc_create, .bdrv_read = vpc_co_read, .bdrv_write = vpc_co_write, - .create_options = vpc_create_options, + .create_options = vpc_create_options, + .bdrv_has_zero_init = vpc_has_zero_init, }; static void bdrv_vpc_init(void) |