From 06ece7de93a6e0820fa21a86d2312c6fd9209aea Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Fri, 14 Feb 2014 00:30:04 -0600 Subject: 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 Reviewed-on: http://review.coreboot.org/5257 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/include/cbmem.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/include') 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 -- cgit v1.2.3