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>

1 files changed, 6 insertions, 0 deletions

diff --git a/payloads/libpayload/arch/arm64/cache.c b/payloads/libpayload/arch/arm64/cache.c
index 799e2d240c..0755c56731 100644
--- a/payloads/libpayload/arch/arm64/cache.c
+++ b/payloads/libpayload/arch/arm64/cache.c
@@ -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();
+}