diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/common/el3_common_macros.S | 15 | ||||
| -rw-r--r-- | include/lib/aarch64/arch_helpers.h | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/common/el3_common_macros.S b/include/common/el3_common_macros.S index 7946e728..87e172e8 100644 --- a/include/common/el3_common_macros.S +++ b/include/common/el3_common_macros.S @@ -214,6 +214,21 @@ * --------------------------------------------------------------------- */ .if \_init_c_runtime +#if IMAGE_BL31 + /* ------------------------------------------------------------- + * Invalidate the RW memory used by the BL31 image. This + * includes the data and NOBITS sections. This is done to + * safeguard against possible corruption of this memory by + * dirty cache lines in a system cache as a result of use by + * an earlier boot loader stage. + * ------------------------------------------------------------- + */ + adr x0, __RW_START__ + adr x1, __RW_END__ + sub x1, x1, x0 + bl inv_dcache_range +#endif /* IMAGE_BL31 */ + ldr x0, =__BSS_START__ ldr x1, =__BSS_SIZE__ bl zeromem16 diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h index b7ab3da6..d01ea315 100644 --- a/include/lib/aarch64/arch_helpers.h +++ b/include/lib/aarch64/arch_helpers.h @@ -145,6 +145,7 @@ DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e0r) DEFINE_SYSOP_TYPE_PARAM_FUNC(at, s12e0w) void flush_dcache_range(uint64_t, uint64_t); +void clean_dcache_range(uint64_t, uint64_t); void inv_dcache_range(uint64_t, uint64_t); void dcsw_op_louis(uint32_t); void dcsw_op_all(uint32_t); |