diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2022-08-25 17:05:23 -0600 |
|---|---|---|
| committer | Karthik Ramasubramanian <kramasub@google.com> | 2022-10-04 15:35:26 +0000 |
| commit | d49c3f278eb77faff098dceb5e7767b53950cd5d (patch) | |
| tree | 6d1c6fab2731d79c1a3ec371c3a3db6c38162188 /src/mainboard | |
| parent | 49332fe85696575c4f9b6ee52508e61f7159bb4c (diff) | |
mb/google/skyrim: Enable amdfw separation
Select the config to separate the AMDFW binary from the verified boot
section.
BUG=b:203597980
TEST=Build Skyrim BIOS image and boot to OS with PSP verstage passing
the hash table and PSP verifying the binaries against the hash table.
Observe boot time improvement of ~120 ms while operating SPI bus at 66
MHz with PSP verstage enabled.
Before this patch series:
508:finished loading body 1,978,053,432 (201,518)
After this patch series:
508:finished loading body 7,948,797,849 (83,460)
Change-Id: I78ec6d28b4c5fc40bdade47489d58180a54dee4d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/google/skyrim/Kconfig | 1 | ||||
| -rw-r--r-- | src/mainboard/google/skyrim/chromeos.fmd | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/google/skyrim/Kconfig b/src/mainboard/google/skyrim/Kconfig index 72079e86ed..87cf6e43a5 100644 --- a/src/mainboard/google/skyrim/Kconfig +++ b/src/mainboard/google/skyrim/Kconfig @@ -97,6 +97,7 @@ config VBOOT config VBOOT_STARTS_BEFORE_BOOTBLOCK bool "Enable PSP_verstage" default y if VBOOT + select SEPARATE_SIGNED_PSPFW config VBOOT_STARTS_IN_BOOTBLOCK bool diff --git a/src/mainboard/google/skyrim/chromeos.fmd b/src/mainboard/google/skyrim/chromeos.fmd index 3be90a44fe..670ac16a73 100644 --- a/src/mainboard/google/skyrim/chromeos.fmd +++ b/src/mainboard/google/skyrim/chromeos.fmd @@ -4,11 +4,13 @@ FLASH@0xFF000000 16M { RW_SECTION_A 3M { VBLOCK_A 8K FW_MAIN_A(CBFS) + SIGNED_AMDFW_A 1536K RW_FWID_A 256 } RW_SECTION_B 3M { VBLOCK_B 8K FW_MAIN_B(CBFS) + SIGNED_AMDFW_B 1536K RW_FWID_B 256 } RW_ELOG(PRESERVE) 4K |