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Diffstat (limited to 'src/arch/x86/Kconfig')
| -rw-r--r-- | src/arch/x86/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 2a42a1c7c7..ef07a2a03a 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -63,6 +63,24 @@ config ARCH_ALL_STAGES_X86 bool default y +config HAVE_EXP_X86_64_SUPPORT + bool + help + Enable experimental support to build and run coreboot in 64-bit mode. + When selecting this option for a new platform, it is highly advisable + to provide a config file for Jenkins to build-test the 64-bit option. + +config USE_EXP_X86_64_SUPPORT + bool "[EXPERIMENTAL] Run coreboot in long (64-bit) mode" + depends on HAVE_EXP_X86_64_SUPPORT + select ARCH_ALL_STAGES_X86_64 + help + When set, most of coreboot runs in long (64-bit) mode instead of the + usual protected flat (32-bit) mode. 64-bit CPUs and OSes can be used + irrespective of whether coreboot runs in 32-bit or 64-bit mode. This + is an experimental option: do not enable unless one wants to test it + and has the means to recover a system when coreboot fails to boot. + config ARCH_X86_64_PGTBL_LOC hex "x86_64 page table location in CBFS" depends on ARCH_BOOTBLOCK_X86_64 |