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arm64: Add arch_program_segment_loaded call to arm64 

arch_program_segment_loaded ensures that the program segment loaded is
synced back from the cache to PoC. dcache_flush_all on arm64 does not
guarantee PoC in case of MP systems. Thus, it is important to track
and sync back all the required segments using
arch_program_segment_loaded.

BUG=chrome-os-partner:38231
BRANCH=None
TEST=Compiles successfully and boots to kernel prompt on smaug

Change-Id: Ic6fcc7e5e0cccbab317950f8abab0c494041d19a
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 284e3784854f764159b64286cea366c66b6bce2c
Original-Change-Id: I5c35b9aa2ae9b5c1f2fcdef40ffb1cde7f49cc1a
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/263327
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9904
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Furquan Shaikh 2015-03-31 22:59:25 -07:00 committed by Patrick Georgi
parent fc45f0ba97
commit 4b14076fd5
2 changed files with 9 additions and 0 deletions
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6
payloads/libpayload/arch/arm64/cache.c
View File

@ -122,3 +122,9 @@ void cache_sync_instructions(void)
dcache_clean_all(); /* includes trailing DSB (in assembly) */
icache_invalidate_all(); /* includes leading DSB and trailing ISB */
}
void arch_program_segment_loaded(void const *addr, size_t len)
{
dcache_clean_invalidate_by_mva(addr, len);
icache_invalidate_all();
}

3
payloads/libpayload/include/arm64/arch/cache.h
View File

@ -100,6 +100,9 @@ void dcache_mmu_enable(void);
/* perform all icache/dcache maintenance needed after loading new code */
void cache_sync_instructions(void);
/* Ensure that loaded program segment is synced back from cache to PoC */
void arch_program_segment_loaded(void const *addr, size_t len);
/* tlb invalidate all */
void tlb_invalidate_all(void);