diff options
| author | Subrata Banik <subratabanik@google.com> | 2022-05-25 01:25:55 +0530 |
|---|---|---|
| committer | Martin L Roth <gaumless@tutanota.com> | 2022-05-29 14:54:00 +0000 |
| commit | 64c04e0da9663d12348a4753fe66bd30d1a8aa0c (patch) | |
| tree | f4c42a2197715b27a74407c44445e6f04767d746 /src/cpu/x86 | |
| parent | 5ca882fa9085c997831c9e9d3f1a33256e400bc8 (diff) | |
cpu/x86: Allow SoC to select the LAPIC access mode
Intel Meteor Lake SoC expects to select x2APIC for accessing LAPIC
hence, this patch provides an option where SoC code choose the correct
LAPIC access mode using choice selection.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I39c99ba13ad6e489c300bd0d4ef7274feeca9d4f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/cpu/x86')
| -rw-r--r-- | src/cpu/x86/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index f34a2626f8..5b9279511d 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -21,8 +21,20 @@ config PARALLEL_MP_AP_WORK config LEGACY_SMP_INIT bool +config DEFAULT_X2APIC + def_bool n + help + Allow SoC code to set LAPIC_ACCESS_MODE to X2APIC. + +config DEFAULT_X2APIC_RUNTIME + def_bool n + help + Allow SoC code to set LAPIC_ACCESS_MODE to X2APIC_RUNTIME. + choice LAPIC_ACCESS_MODE prompt "APIC operation mode" + default X2APIC_ONLY if DEFAULT_X2APIC + default X2APIC_RUNTIME if DEFAULT_X2APIC_RUNTIME default XAPIC_ONLY config XAPIC_ONLY |