sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

x86: Introduce RESET_VECTOR_IN_RAM option

Browse Source 
Create a new Kconfig symbol that allows an x86 device to begin execution
when its reset vector is in DRAM and not at the traditional 0xfffffff0.

The implementation will follow later, this is just to setup various
ENV_xxx definitions correctly for the build environment.

Change-Id: I098ecf8bf200550db1e15f178f7661c1ac516dc5
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35004
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Martin Roth
2019-04-22 16:26:23 -06:00
committed by Kyösti Mälkki
parent a165c07ed7
commit 8418fd418c
4 changed files with 21 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/include/rules.h
View File

@ -271,7 +271,7 @@
#if CONFIG(ARCH_X86)
/* Indicates memory layout is determined with arch/x86/car.ld. */
#define ENV_CACHE_AS_RAM ENV_ROMSTAGE_OR_BEFORE
#define ENV_CACHE_AS_RAM (ENV_ROMSTAGE_OR_BEFORE && !CONFIG(RESET_VECTOR_IN_RAM))
/* No .data sections with execute-in-place from ROM. */
#define ENV_STAGE_HAS_DATA_SECTION !ENV_CACHE_AS_RAM
/* No .bss sections for stage with CAR teardown. */