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| author | Coiby Xu <coiby.xu@gmail.com> | 2020-09-18 16:09:09 +0800 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2020-10-23 13:42:16 +0100 |
| commit | 5937835ac4cfb2f5e16bebf13b9ea42770c96785 (patch) | |
| tree | 775e94555bee4c1f733b8c58000986c3f6439436 /util/block-helpers.h | |
| parent | 70eb2c079cdfa835c70aec8887710b18092516a0 (diff) | |
block: move logical block size check function to a common utility function
Move the constants from hw/core/qdev-properties.c to
util/block-helpers.h so that knowledge of the min/max values is
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Coiby Xu <coiby.xu@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Message-id: 20200918080912.321299-5-coiby.xu@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'util/block-helpers.h')
| -rw-r--r-- | util/block-helpers.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/util/block-helpers.h b/util/block-helpers.h new file mode 100644 index 0000000000..b53295a529 --- /dev/null +++ b/util/block-helpers.h @@ -0,0 +1,19 @@ +#ifndef BLOCK_HELPERS_H +#define BLOCK_HELPERS_H + +#include "qemu/units.h" + +/* lower limit is sector size */ +#define MIN_BLOCK_SIZE INT64_C(512) +#define MIN_BLOCK_SIZE_STR "512 B" +/* + * upper limit is arbitrary, 2 MiB looks sufficient for all sensible uses, and + * matches qcow2 cluster size limit + */ +#define MAX_BLOCK_SIZE (2 * MiB) +#define MAX_BLOCK_SIZE_STR "2 MiB" + +void check_block_size(const char *id, const char *name, int64_t value, + Error **errp); + +#endif /* BLOCK_HELPERS_H */ |