arm64: enable PKEY support for CPUs with S1POE

jgouly · willdeacon · commit 4afd00641b22 · 2024-09-04T12:54:05.000+01:00
Now that PKEYs support has been implemented, enable it for CPUs that support S1POE. Signed-off-by: Joey Gouly <joey.gouly@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Link: https://lore.kernel.org/r/20240822151113.1479789-23-joey.gouly@arm.com Signed-off-by: Will Deacon <will@kernel.org>
diff --git a/arch/arm64/include/asm/pkeys.h b/arch/arm64/include/asm/pkeys.h
@@ -17,7 +17,7 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 
 static inline bool arch_pkeys_enabled(void)
 {
-	return false;
+	return system_supports_poe();
 }
 
 static inline int vma_pkey(struct vm_area_struct *vma)

Original file line number	Diff line number	Diff line change
`@@ -17,7 +17,7 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,`
`17`	`17`
`18`	`18`	`static inline bool arch_pkeys_enabled(void)`
`19`	`19`	`{`
`20`		`- return false;`
	`20`	`+ return system_supports_poe();`
`21`	`21`	`}`
`22`	`22`
`23`	`23`	`static inline int vma_pkey(struct vm_area_struct *vma)`