src: Consolidate x86_64 support Kconfig
Introduce `USE_EXP_X86_64_SUPPORT` in `src/arch/x86/Kconfig` and guard
it with `HAVE_EXP_X86_64_SUPPORT`. Replace the per-CPU implementations
of the same functionality with the newly-added Kconfig options. Update
documentation and the config file for QEMU accordingly.
Change-Id: I550216fd2a8323342d6b605306b0b95ffd5dcd1c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55760
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/cpu/qemu-x86/Kconfig b/src/cpu/qemu-x86/Kconfig
index 6d897fe..2f961dca 100644
--- a/src/cpu/qemu-x86/Kconfig
+++ b/src/cpu/qemu-x86/Kconfig
@@ -3,6 +3,7 @@
config CPU_QEMU_X86
bool
select ARCH_X86
+ select HAVE_EXP_X86_64_SUPPORT
select UDELAY_TSC
select TSC_MONOTONIC_TIMER
select UNKNOWN_TSC_RATE
@@ -49,12 +50,4 @@
default 32 if SMM_TSEG
default 4
-config CPU_QEMU_X86_64
- bool "Experimental 64bit support"
- select ARCH_ALL_STAGES_X86_64
-
-config CPU_QEMU_X86_32
- bool
- default n if CPU_QEMU_X86_64
- default y
endif