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vboot: copy data structures to CBMEM for downstream use

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For platforms that do not employ VBOOT_STARTS_IN_ROMSTAGE,
vboot verification occurs before CBMEM is brought online.
In order to make vboot data structures available downstream,
copy vb2_working_data from CAR/SRAM into CBMEM when CBMEM
comes online.  Create VBOOT_MIGRATE_WORKING_DATA config
option to toggle this functionality.

BUG=b:124141368, b:124192753
TEST=Built and deployed on eve with STARTS_IN_BOOTBLOCK
TEST=Built and deployed on eve with STARTS_IN_ROMSTAGE
TEST=util/lint/checkpatch.pl -g origin/master..HEAD
TEST=util/abuild/abuild -B -e -y -c 50 -p none -x
BRANCH=none

Change-Id: I62c11268a83927bc00ae9bd93b1b31363b38e8cf
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31329
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Joel Kitching
2019-02-11 15:37:49 +08:00
committed by Patrick Georgi
parent 6b8a29e8b9
commit 0bcee88298
7 changed files with 94 additions and 73 deletions
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7
src/include/symbols.h
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@@ -67,4 +67,11 @@ DECLARE_REGION(bl31)
*/
#define DECLARE_OPTIONAL_REGION(name) asm (".weak _" #name ", _e" #name)
/* Returns true when pre-RAM symbols are known to the linker.
* (Does not necessarily mean that the memory is accessible.) */
static inline int preram_symbols_available(void)
{
return !IS_ENABLED(CONFIG_CACHE_AS_RAM) || ENV_CACHE_AS_RAM;
}
#endif /* __SYMBOLS_H */