Okash Khawaja 04c7303b9c feat(cpus): make cache ops conditional ... When a core is in debug recovery mode its caches are not invalidated upon reset, so the L1 and L2 cache contents from before reset are observable after reset. Similarly, debug recovery mode of DynamIQ cluster ensures that contents of the shared L3 cache are also not invalidated upon transition to On mode. Booting cores in debug recovery mode means booting with caches disabled and preserving the caches until a point where software can dump the caches and retrieve their contents. TF-A however unconditionally cleans and invalidates caches at multiple points during boot. This can lead to memory corruption as well as loss of cache contents to be used for debugging. This patch fixes this by calling a platform hook before performing CMOs in helper routines in cache_helpers.S. The platform hook plat_can_cmo is an assembly routine which must not clobber x2 and x3, and avoid using stack. The whole checking is conditional upon `CONDITIONAL_CMO` which can be set at compile time. Signed-off-by: Okash Khawaja <okash@google.com> Change-Id: I172e999e4acd0f872c24056e647cc947ee54b193		2022-11-10 12:14:05 +00:00
..
arm32_aeabi_divmod.c	Fix Coverity #261967, Infinite loop	2019-08-06 13:06:03 +01:00
arm32_aeabi_divmod_a32.S	ARMv7: division support for missing __aeabi_*divmod	2017-11-08 14:42:07 +01:00
armclang_printf.S	libc: armclang: Implement compiler printf symbols	2018-08-22 10:26:05 +01:00
cache_helpers.S	feat(cpus): make cache ops conditional	2022-11-10 12:14:05 +00:00
misc_helpers.S	fix(pie): do not skip __RW_END__ address during relocation	2021-12-01 17:35:27 +01:00