arm32: core_mmu_v7 clear tbl_info.table before use #342
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Clear tlb_info.table before use, because there maybe junk data in this area. If not, system may crash when setting ttbr0 as following: core_mmu_set_user_map->write_ttbr0(map->ttbr0); Signed-off-by: Peng Fan <van.freenix@gmail.com> Reviewed-by: Pascal Brand <pascal.brand@linaro.org> Tested-by: Pascal Brand <pascal.brand@linaro.org> (QEMU) Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
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Clear tlb_info.table before use, because there maybe junk
data in this area. If not, system may crash when setting
ttbr0 as following:
core_mmu_set_user_map->write_ttbr0(map->ttbr0);
On my platform, the first entry of ttbr0 table is not set and it's
value is a random value. Switching ttbr0 crashes the system.
Signed-off-by: Peng Fan van.freenix@gmail.com