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arm64: add config options for exception level startup

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Depending on the armv8 implementation the cpus could start in
EL1, EL2, or EL3.  Therefore allow the SoC to select the appropriate
mode.

BUG=chrome-os-partner:31545
BRANCH=None
TEST=Built.

Change-Id: Id063681ef7691097e528c105fffac5d467585e4e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/214666
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Aaron Durbin 2014-08-27 10:44:32 -05:00 • committed by chrome-internal-fetch
commit bb6b092a43
1 changed files with 12 additions and 0 deletions
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12
src/arch/arm64/armv8/Kconfig
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@ -7,3 +7,15 @@ config ARCH_ROMSTAGE_ARM_V8_64
config ARCH_RAMSTAGE_ARM_V8_64
def_bool n
select ARCH_RAMSTAGE_ARM64
config ARM64_CPUS_START_IN_EL3
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64
config ARM64_CPUS_START_IN_EL2
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64
config ARM64_CPUS_START_IN_EL1
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64