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arch/x86/Kconfig: introduce RESERVED_PHYSICAL_ADDRESS_BITS_SUPPORT

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Since also some AMD CPUs have reserved physical address bits that can't
be used as normal address bits, introduce the
RESERVED_PHYSICAL_ADDRESS_BITS_SUPPORT Kconfig option which gets
selected by CPU_INTEL_COMMON, and use the new common option to configure
if the specific SoC/CPU code implements get_reserved_phys_addr_bits or
if the default of this returning 0 is used instead.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0059e63a160e60ddee280635bba72d363deca7f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78073
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
This commit is contained in:
Felix Held 2023-09-12 14:48:38 +02:00
commit 3748fca595
3 changed files with 12 additions and 1 deletions
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src/cpu/intel/common/Kconfig
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@ -1,5 +1,6 @@
config CPU_INTEL_COMMON
bool
select RESERVED_PHYSICAL_ADDRESS_BITS_SUPPORT
if CPU_INTEL_COMMON