Thread (9 messages) 9 messages, 3 authors, 2019-07-15

[PATCH 1/3] x86, s390: Move ARCH_HAS_MEM_ENCRYPT definition to arch/Kconfig

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STALE2643d REVIEWED: 1 (0M)

From: Thiago Jung Bauermann <hidden>
Date: 2019-07-13 04:46:22
Also in: linux-fsdevel, linux-iommu, linux-s390, lkml
Subsystem: s390 architecture, the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Heiko Carstens, Vasily Gorbik, Alexander Gordeev, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

Revision v1 of 4 in this series; 1 review trailer.

Revisions (4)
  1. v1
  2. v1 current
  3. v3 [diff vs current]
  4. v4 [diff vs current]
powerpc is also going to use this feature, so put it in a generic location.

Signed-off-by: Thiago Jung Bauermann <redacted>
Reviewed-by: Thomas Gleixner <redacted>
---
 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
-
 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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