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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-18 16:51:19 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-04-21 23:05:56 +1000 |
| commit | 0fb1c25ab523614b056ace11be67aac8f8ccabb1 (patch) | |
| tree | 0f458e2ca41b6e94626f1d7bc41c4557e42a44ec /arch/powerpc/platforms | |
| parent | 69795cabe4cfe5122438d50010ad5310c113a013 (diff) | |
powerpc: Add skeleton for Kernel Userspace Execution Prevention
This patch adds a skeleton for Kernel Userspace Execution Prevention.
Then subarches implementing it have to define CONFIG_PPC_HAVE_KUEP
and provide setup_kuep() function.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Don't split strings, use pr_crit_ratelimited()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 842b2c7e156a..7d30bbbaa3c1 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -345,6 +345,18 @@ config PPC_RADIX_MMU_DEFAULT If you're unsure, say Y. +config PPC_HAVE_KUEP + bool + +config PPC_KUEP + bool "Kernel Userspace Execution Prevention" + depends on PPC_HAVE_KUEP + default y + help + Enable support for Kernel Userspace Execution Prevention (KUEP) + + If you're unsure, say Y. + config ARCH_ENABLE_HUGEPAGE_MIGRATION def_bool y depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION |