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| author | Ritesh Harjani (IBM) <ritesh.list@gmail.com> | 2024-10-18 20:29:51 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-10-23 10:53:20 +0300 |
| commit | b5fbf7e2c6a403344e83139a14322f0c42911f2d (patch) | |
| tree | 0f443b073fc52062af0e28a698103d9bb7e05189 /arch/powerpc/include/asm | |
| parent | 8fec58f503b296af87ffca3898965e3054f2b616 (diff) | |
| download | linux-b5fbf7e2c6a403344e83139a14322f0c42911f2d.tar.xz | |
book3s64/radix: Refactoring common kfence related functions
Both radix and hash on book3s requires to detect if kfence
early init is enabled or not. Hash needs to disable kfence
if early init is not enabled because with kfence the linear map is
mapped using PAGE_SIZE rather than 16M mapping.
We don't support multiple page sizes for slb entry used for kernel
linear map in book3s64.
This patch refactors out the common functions required to detect kfence
early init is enabled or not.
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/f4a787224fbe5bb787158ace579780c0257f6602.1729271995.git.ritesh.list@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/kfence.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/kfence.h b/arch/powerpc/include/asm/kfence.h index fab124ada1c7..1f7cab58ab2c 100644 --- a/arch/powerpc/include/asm/kfence.h +++ b/arch/powerpc/include/asm/kfence.h @@ -15,7 +15,7 @@ #define ARCH_FUNC_PREFIX "." #endif -#ifdef CONFIG_KFENCE +extern bool kfence_early_init; extern bool kfence_disabled; static inline void disable_kfence(void) @@ -27,7 +27,11 @@ static inline bool arch_kfence_init_pool(void) { return !kfence_disabled; } -#endif + +static inline bool kfence_early_init_enabled(void) +{ + return IS_ENABLED(CONFIG_KFENCE) && kfence_early_init; +} #ifdef CONFIG_PPC64 static inline bool kfence_protect_page(unsigned long addr, bool protect) |