Turn ARCH_USE_MEMREMAP_PROT into a generic Kconfig symbol, and fix the
dependency expression to reflect that AMD_MEM_ENCRYPT depends on it,
instead of the other way around. This will permit ARCH_USE_MEMREMAP_PROT
to be selected by other architectures.
Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
arch/Kconfig | 3 +++
arch/x86/Kconfig | 5 +----
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/Kconfig b/arch/Kconfig
index 4cfb6de48f79..9f0213213da8 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -885,6 +885,9 @@ config HAVE_ARCH_PREL32_RELOCATIONS
architectures, and don't require runtime relocation on relocatable
kernels.
+config ARCH_USE_MEMREMAP_PROT
+ bool
+
source "kernel/gcov/Kconfig"
source "scripts/gcc-plugins/Kconfig"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 26387c7bf305..c0e9a77dc089 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1510,6 +1510,7 @@ config AMD_MEM_ENCRYPT
bool "AMD Secure Memory Encryption (SME) support"
depends on X86_64 && CPU_SUP_AMD
select DYNAMIC_PHYSICAL_MASK
+ select ARCH_USE_MEMREMAP_PROT
---help---
Say yes to enable support for the encryption of system memory.
This requires an AMD processor that supports Secure Memory
@@ -1529,10 +1530,6 @@ config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
If set to N, then the encryption of system memory can be
activated with the mem_encrypt=on command line option.
-config ARCH_USE_MEMREMAP_PROT
- def_bool y
- depends on AMD_MEM_ENCRYPT
-
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support"
--
2.20.1
