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authorAaron Durbin <adurbin@chromium.org>2014-02-14 00:30:04 -0600
committerAaron Durbin <adurbin@google.com>2014-03-11 21:37:36 +0100
commit06ece7de93a6e0820fa21a86d2312c6fd9209aea (patch)
tree301b69639b3d953ca1a05f985457618a240a9073 /src/include
parente7e78d61a96072ba619f95eba9762a0ca50abe15 (diff)
downloadcoreboot-06ece7de93a6e0820fa21a86d2312c6fd9209aea.tar.xz
chromeos: provide option to dynamically allocate ram oops buffer
Fixing the location of the ram oops buffer can lead to certain kernel and boot loaders being confused when there is a ram reservation low in the address space. Alternatively provide a mechanism to allocate the ram oops buffer in cbmem. As cbmem is usually high in the address space it avoids low reservation confusion. The patch uncondtionally provides a GOOG9999 ACPI device with a single memory resource describing the memory region used for the ramoops region. BUG=None BRANCH=baytrail,haswell TEST=Built and booted with and w/o dynamic ram oops. With the corresponding kernel change things behave correctly. Change-Id: Ide2bb4434768c9f9b90e125adae4324cb1d2d073 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5257 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/include')
-rw-r--r--src/include/cbmem.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/cbmem.h b/src/include/cbmem.h
index 7cb12b261f..f103b30299 100644
--- a/src/include/cbmem.h
+++ b/src/include/cbmem.h
@@ -62,6 +62,7 @@
#define CBMEM_ID_REFCODE 0x04efc0de
#define CBMEM_ID_REFCODE_CACHE 0x4efc0de5
#define CBMEM_ID_SMM_SAVE_SPACE 0x07e9acee
+#define CBMEM_ID_RAM_OOPS 0x05430095
#define CBMEM_ID_NONE 0x00000000
#define CBMEM_ID_AGESA_RUNTIME 0x41474553
#define CBMEM_ID_HOB_POINTER 0x484f4221