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SubjectRe: [PATCH 1/3] x86, s390: Move ARCH_HAS_MEM_ENCRYPT definition to arch/Kconfig
On 2019-07-12 23:45, Thiago Jung Bauermann wrote:
> 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>
> ---
> arch/Kconfig | 3 +++
> arch/s390/Kconfig | 3 ---
> arch/x86/Kconfig | 4 +---
> 3 files changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index c47b328eada0..4ef3499d4480 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -927,6 +927,9 @@ 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"
> diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
> index 5d8570ed6cab..f820e631bf89 100644
> --- a/arch/s390/Kconfig
> +++ b/arch/s390/Kconfig
> @@ -1,7 +1,4 @@
> # SPDX-License-Identifier: GPL-2.0
> -config ARCH_HAS_MEM_ENCRYPT
> - def_bool y
> -

Since you are removing the "def_bool y" when ARCH_HAS_MEM_ENCRYPT is
moved to arch/Kconfig, does the s390/Kconfig need "select
ARCH_HAS_MEM_ENCRYPT" added like you do for x86/Kconfig?

- Janani

> config MMU
> def_bool y
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index c9f331bb538b..5d3295f2df94 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -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_SPECIAL
> @@ -1520,9 +1521,6 @@ 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

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