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List:       linux-kbuild
Subject:    [PATCH v6 kspp-next 17/22] x86/boot: allow FG-KASLR to be selected
From:       Alexander Lobakin <alexandr.lobakin () intel ! com>
Date:       2021-08-31 14:41:09
Message-ID: 20210831144114.154-18-alexandr.lobakin () intel ! com
[Download RAW message or body]

Now that we have full support of FG-KASLR from both kernel core
and x86 code, allow FG-KASLR to be enabled for x86_64 if the
"regular" KASLR is also turned on.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 88fb922c23a0..bba561053557 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -74,6 +74,7 @@ config X86
 	select ARCH_HAS_EARLY_DEBUG		if KGDB
 	select ARCH_HAS_ELF_RANDOMIZE
 	select ARCH_HAS_FAST_MULTIPLIER
+	select ARCH_HAS_FG_KASLR		if X86_64 && RANDOMIZE_BASE
 	select ARCH_HAS_FILTER_PGPROT
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
-- 
2.31.1

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