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The logic used in lmb_alloc() takes into consideration the existing reserved regions, and ensures that the allocated region does not overlap with any existing allocated regions. The lmb_reserve() function is not doing any such checks -- the requested region might overlap with an existing region. This also shows up with lmb_alloc_addr() as this function ends up calling lmb_reserve(). Add a function which checks if the region requested is overlapping with an existing reserved region, and allow for the reservation to happen only if both the regions have LMB_NONE flag, which allows re-requesting of the region. In any other scenario of an overlap, have lmb_reserve() return -EEXIST, implying that the requested region is already reserved. Add corresponding test cases which check for overlapping reservation requests made through lmb_reserve() and lmb_alloc_addr(). And while here, fix some of the comments in the test function being touched. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com> |
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| boot | ||
| cmd | ||
| common | ||
| dm | ||
| env | ||
| fdt_overlay | ||
| fs | ||
| fuzz | ||
| hush | ||
| image | ||
| lib | ||
| log | ||
| optee | ||
| py | ||
| stdint | ||
| cmd_ut.c | ||
| Kconfig | ||
| Makefile | ||
| run | ||
| test-main.c | ||
| ut.c | ||