xref: /qemu/util/block-helpers.h (revision 5937835a) 
1*5937835aSCoiby Xu #ifndef BLOCK_HELPERS_H
2*5937835aSCoiby Xu #define BLOCK_HELPERS_H
3*5937835aSCoiby Xu 
4*5937835aSCoiby Xu #include "qemu/units.h"
5*5937835aSCoiby Xu 
6*5937835aSCoiby Xu /* lower limit is sector size */
7*5937835aSCoiby Xu #define MIN_BLOCK_SIZE          INT64_C(512)
8*5937835aSCoiby Xu #define MIN_BLOCK_SIZE_STR      "512 B"
9*5937835aSCoiby Xu /*
10*5937835aSCoiby Xu  * upper limit is arbitrary, 2 MiB looks sufficient for all sensible uses, and
11*5937835aSCoiby Xu  * matches qcow2 cluster size limit
12*5937835aSCoiby Xu  */
13*5937835aSCoiby Xu #define MAX_BLOCK_SIZE          (2 * MiB)
14*5937835aSCoiby Xu #define MAX_BLOCK_SIZE_STR      "2 MiB"
15*5937835aSCoiby Xu 
16*5937835aSCoiby Xu void check_block_size(const char *id, const char *name, int64_t value,
17*5937835aSCoiby Xu                       Error **errp);
18*5937835aSCoiby Xu 
19*5937835aSCoiby Xu #endif /* BLOCK_HELPERS_H */
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