From 30974bc2f5f4764425e69256782cca03b290c4f4 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Thu, 20 Mar 2014 14:28:17 -0500 Subject: vboot: allow for non-memory-mapped VBOOT regions Depending on the platform the underlying regions vboot requires may not be accessible through a memory-mapped interface. Allow for non-memory-mapped regions by providing a region request abstraction. There is then only a few touch points in the code to provide compile-time decision making no how to obtain a region. For the vblocks a temporary area is allocated from cbmem. They are then read from the SPI into the temporarily buffer. BUG=chrome-os-partner:27094 BRANCH=None TEST=Built and booted a rambi with vboot verification. Original-Change-Id: I828a7c36387a8eb573c5a0dd020fe9abad03d902 Original-Signed-off-by: Aaron Durbin Original-Reviewed-on: https://chromium-review.googlesource.com/190924 Original-Reviewed-by: Hung-Te Lin (cherry picked from commit aee0280bbfe110eae88aa297b433c1038c6fe8a3) Signed-off-by: Marc Jones Change-Id: Ia020d1eebad753da950342656cd11b84e9a85376 Reviewed-on: http://review.coreboot.org/7709 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/vendorcode/google/chromeos/chromeos.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/vendorcode/google/chromeos/chromeos.h') diff --git a/src/vendorcode/google/chromeos/chromeos.h b/src/vendorcode/google/chromeos/chromeos.h index 20cac997ed..c162891fdd 100644 --- a/src/vendorcode/google/chromeos/chromeos.h +++ b/src/vendorcode/google/chromeos/chromeos.h @@ -36,6 +36,13 @@ void init_chromeos(int bootmode); struct romstage_handoff; #if CONFIG_VBOOT_VERIFY_FIRMWARE +/* + * This is a dual purpose routine. If dest is non-NULL the region at + * offset_addr will be read into the area pointed to by dest. If dest + * is NULL,the region will be mapped to a memory location. NULL is + * returned on error else the location of the requested region. + */ +void *vboot_get_region(uintptr_t offset_addr, size_t size, void *dest); /* Returns 0 on success < 0 on error. */ int vboot_get_handoff_info(void **addr, uint32_t *size); int vboot_enable_developer(void); -- cgit v1.2.3