diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2019-02-21 12:11:14 +0100 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2019-07-02 08:46:00 +0000 |
| commit | a19b07fec13e713004e722f439e1ed7bc2e6ebd0 (patch) | |
| tree | 6c3a55848dc8cdfa97cc0de2d93d87599d113f0c /src/security/memory/Makefile.inc | |
| parent | c1b7e8a60be9853b5b00fc70615cea2fa8bfafc5 (diff) | |
security/memory: Clear memory in ramstage
* Add architecture independend way of clearing all DRAM
* Implemented in ramstage as MTRRs need to be set to speed up
clearing. Takes up to 15 seconds per GiB otherwise.
* Use memset_pae on x86
* Add quirks for FSP1.0
Tested on P8H61M-Pro:
* Clears 4GiB in less than 1 second
Tested on wedge100s:
* Clears 8GiB in 2 seconds
Change-Id: Idaadb8fb438e5b95557c0f65a14534e8762fde20
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31550
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/security/memory/Makefile.inc')
| -rw-r--r-- | src/security/memory/Makefile.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/security/memory/Makefile.inc b/src/security/memory/Makefile.inc index 525c4dbb4d..0882ca3660 100644 --- a/src/security/memory/Makefile.inc +++ b/src/security/memory/Makefile.inc @@ -1,3 +1,5 @@ romstage-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c postcar-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c ramstage-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory.c + +ramstage-$(CONFIG_PLATFORM_HAS_DRAM_CLEAR) += memory_clear.c |