vboot2: Reduce minimum required work buffer size
Apparently our initial submission of 16K was a little too generous for the vboot2 work buffer, and I hear that we should also be well within bounds for 12K. This patch reduces the minimum asserted by memlayout so some of our low-mem boards can get a few more kilobytes back for discretionary spending. Also changes the required minimum alignment to 8 since that's what the current vboot code aligns it to anyway, and add a warning comment to make it clearer that this is a dangerous number people should not be playing with lightly. BRANCH=None BUG=None TEST=Built and booted on Pinky. Original-Change-Id: Iae9c74050500a315c90f5d5517427d755ac1dfea Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/232613 Original-Reviewed-by: Randall Spangler <rspangler@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> (cherry picked from commit 64e972f10363451cd544fdf8642bd484463703bc) Signed-off-by: Aaron Durbin <adurbin@chromium.org> Change-Id: I362b8c33cf79534bb76bd7acda44d467563fe133 Reviewed-on: http://review.coreboot.org/9445 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Tested-by: build bot (Jenkins)
This commit is contained in:
parent
2624c8d337
commit
d0db3a90ad
|
@ -22,9 +22,12 @@
|
||||||
#ifndef __CHROMEOS_VBOOT2_MEMLAYOUT_H
|
#ifndef __CHROMEOS_VBOOT2_MEMLAYOUT_H
|
||||||
#define __CHROMEOS_VBOOT2_MEMLAYOUT_H
|
#define __CHROMEOS_VBOOT2_MEMLAYOUT_H
|
||||||
|
|
||||||
|
/* Careful: required work buffer size depends on RW properties such as key size
|
||||||
|
* and algorithm -- what works for you might stop working after an update. Do
|
||||||
|
* NOT lower the asserted minimum without consulting vboot devs (rspangler)! */
|
||||||
#define VBOOT2_WORK(addr, size) \
|
#define VBOOT2_WORK(addr, size) \
|
||||||
REGION(vboot2_work, addr, size, 4) \
|
REGION(vboot2_work, addr, size, 8) \
|
||||||
_ = ASSERT(size >= 16K, "vboot2 work buffer must be at least 16K!");
|
_ = ASSERT(size >= 12K, "vboot2 work buffer must be at least 12K!");
|
||||||
|
|
||||||
#ifdef __VERSTAGE__
|
#ifdef __VERSTAGE__
|
||||||
#define VERSTAGE(addr, sz) \
|
#define VERSTAGE(addr, sz) \
|
||||||
|
|
Loading…
Reference in New Issue