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| author | davidcunado-arm <david.cunado@arm.com> | 2017-10-04 16:23:59 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-10-04 16:23:59 +0100 |
| commit | c64d1345a8227ec9c9d8f8fa6a6c3e5e487b82f0 (patch) | |
| tree | 2604ec7cfc96c5ea1ea9456bd958b45a15d44e75 /include/lib/utils.h | |
| parent | cb2cfae365eedb94619f8f88f98aee8f866d9a14 (diff) | |
| parent | b09ba056c4203a3fcca78675aa3de257023b7d70 (diff) | |
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Merge pull request #1109 from robertovargas-arm/mem_protect
Mem protect
Diffstat (limited to 'include/lib/utils.h')
| -rw-r--r-- | include/lib/utils.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/lib/utils.h b/include/lib/utils.h index b75813f77..cfc830220 100644 --- a/include/lib/utils.h +++ b/include/lib/utils.h @@ -19,6 +19,25 @@ #include <types.h> +typedef struct mem_region_t { + uintptr_t base; + size_t nbytes; +} mem_region_t; + +/* + * zero_normalmem all the regions defined in tbl. + */ +void clear_mem_regions(mem_region_t *tbl, size_t nregions); + + +/* + * checks that a region (addr + nbytes-1) of memory is totally covered by + * one of the regions defined in tbl. Caller must ensure that (addr+nbytes-1) + * doesn't overflow. + */ +int mem_region_in_array_chk(mem_region_t *tbl, size_t nregions, + uintptr_t addr, size_t nbytes); + /* * Fill a region of normal memory of size "length" in bytes with zero bytes. * |