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arch|cpu/x86: Add Kconfig option for x86 reset vector

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Prepare for an implementation supporting the reset vector in RAM and
not the traditional 0xfffffff0.  Add a Kconfig symbol that can be used
in place of hardcoded values.

Change-Id: I6a814f7179ee4251aeeccb2555221616e944e03d
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37485
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit is contained in:
Marshall Dawson
2019-11-01 17:30:05 -06:00
committed by Patrick Georgi
parent 4ba70a7575
commit 67910db907
6 changed files with 19 additions and 11 deletions
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10
src/arch/x86/Kconfig
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@@ -87,6 +87,16 @@ config AP_IN_SIPI_WAIT
default n
depends on ARCH_X86 && SMP
config X86_RESET_VECTOR
hex
depends on ARCH_X86
default 0xfffffff0
help
Specify the location of the x86 reset vector. In traditional devices
this must match the architectural reset vector to produce a bootable
image. Nontraditional designs may use this to position the reset
vector into its desired location.
config RESET_VECTOR_IN_RAM
bool
depends on ARCH_X86