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Subject[RFC PATCH v2 03/20] x86: Secure Memory Encryption (SME) build enablement
Date
Provide the Kconfig support to build the SME support in the kernel.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
arch/x86/Kconfig | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c580d8c..131f329 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1357,6 +1357,15 @@ config X86_DIRECT_GBPAGES
supports them), so don't confuse the user by printing
that we have them enabled.

+config AMD_MEM_ENCRYPT
+ bool "Secure Memory Encryption support for AMD"
+ depends on X86_64 && CPU_SUP_AMD
+ ---help---
+ Say yes to enable the encryption of system memory. This requires
+ an AMD processor that supports Secure Memory Encryption (SME).
+ The encryption of system memory is disabled by default but can be
+ enabled with the mem_encrypt=on command line option.
+
# Common NUMA Features
config NUMA
bool "Numa Memory Allocation and Scheduler Support"
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