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x86, s390: Move ARCH_HAS_MEM_ENCRYPT definition to arch/Kconfig

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powerpc is also going to use this feature, so put it in a generic location.

Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190806044919.10622-2-bauerman@linux.ibm.com
This commit is contained in:
Thiago Jung Bauermann 2019-08-06 01:49:14 -03:00 committed by Michael Ellerman
parent 609488bc97
commit 0c9c1d5639
3 changed files with 5 additions and 6 deletions
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3
arch/Kconfig
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@ -925,6 +925,9 @@ config LOCK_EVENT_COUNTS
the chance of application behavior change because of timing
differences. The counts are reported via debugfs.
config ARCH_HAS_MEM_ENCRYPT
bool
source "kernel/gcov/Kconfig"
source "scripts/gcc-plugins/Kconfig"

4
arch/s390/Kconfig
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@ -1,7 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
config ARCH_HAS_MEM_ENCRYPT
def_bool y
config MMU
def_bool y
@ -68,6 +65,7 @@ config S390
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_GIGANTIC_PAGE
select ARCH_HAS_KCOV
select ARCH_HAS_MEM_ENCRYPT
select ARCH_HAS_PTE_SPECIAL
select ARCH_HAS_SET_MEMORY
select ARCH_HAS_STRICT_KERNEL_RWX

4
arch/x86/Kconfig
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@ -68,6 +68,7 @@ config X86
select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_KCOV if X86_64
select ARCH_HAS_MEM_ENCRYPT
select ARCH_HAS_MEMBARRIER_SYNC_CORE
select ARCH_HAS_PMEM_API if X86_64
select ARCH_HAS_PTE_DEVMAP if X86_64
@ -1518,9 +1519,6 @@ config X86_CPA_STATISTICS
helps to determine the effectiveness of preserving large and huge
page mappings when mapping protections are changed.
config ARCH_HAS_MEM_ENCRYPT
def_bool y
config AMD_MEM_ENCRYPT
bool "AMD Secure Memory Encryption (SME) support"
depends on X86_64 && CPU_SUP_AMD