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authorKyösti Mälkki <kyosti.malkki@gmail.com>2014-03-28 23:46:45 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2014-04-01 11:36:00 +0200
commitdeb2cb27e9bade18c4d186899edfaeabfc1131bd (patch)
tree3827d61ee049cb0f2d5edc6951210d112b5378f7 /src/Kconfig
parent0ec3f493a332a7e779600406732141573fafd526 (diff)
downloadcoreboot-deb2cb27e9bade18c4d186899edfaeabfc1131bd.tar.xz
Static CBMEM / CAR: Flag boards with BROKEN_CAR_MIGRATE
Use of CAR_GLOBAL is not safe after CAR is torn down, unless the board properly implements EARLY_CBMEM_INIT. Flag vulnerable boards that only do cbmem_recovery() in romstage on S3 resume and implementation with Intel FSP that invalidates cache before we have a chance to copy the contents. Change-Id: Iecd10dee9b73ab3f1f66826950fa0945675ff39f Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5419 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/Kconfig')
-rw-r--r--src/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig
index 531a8c860b..fe7dc9b017 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -170,6 +170,15 @@ config EARLY_CBMEM_INIT
some, for instance, execution timestamps. It needs support in
romstage.c and should be enabled by the board's Kconfig.
+config BROKEN_CAR_MIGRATE
+ bool
+ default y if !EARLY_CBMEM_INIT && HAVE_ACPI_RESUME
+ default n
+ help
+ Many boards use CAR_GLOBAL but have no EARLY_CBMEM_INIT and
+ manage CAR migration on S3 resume path only. Couple boards use
+ CAR_GLOBAL and never do CAR migration.
+
config DYNAMIC_CBMEM
bool "The CBMEM space is dynamically grown."
default n