| Message ID | 20180508145948.9492-7-mpe@ellerman.id.au (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | mm, x86, powerpc: Consolidate pkey code | expand |
diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h index 0e5f749158e4..c1957f8f7c1b 100644 --- a/arch/x86/include/asm/pkeys.h +++ b/arch/x86/include/asm/pkeys.h @@ -7,6 +7,11 @@ extern int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, unsigned long init_val); +static inline bool arch_pkeys_enabled(void) +{ + return boot_cpu_has(X86_FEATURE_OSPKE); +} + /* * Try to dedicate one of the protection keys to be used as an * execute-only protection key.
This will be used in future patches to check for arch support for pkeys in generic code. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/x86/include/asm/pkeys.h | 5 +++++ 1 file changed, 5 insertions(+)