diff mbox series

[v3,13/25] arm64: stop using generic mm_hooks.h

Message ID 20231124163510.1835740-14-joey.gouly@arm.com (mailing list archive)
State New, archived
Headers show
Series Permission Overlay Extension | expand

Commit Message

Joey Gouly Nov. 24, 2023, 4:34 p.m. UTC 
These functions will be extended to support pkeys.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
---
 arch/arm64/include/asm/mmu_context.h | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

Comments

Catalin Marinas Dec. 11, 2023, 6:22 p.m. UTC | #1 
On Fri, Nov 24, 2023 at 04:34:58PM +0000, Joey Gouly wrote:
> These functions will be extended to support pkeys.
> 
> Signed-off-by: Joey Gouly <joey.gouly@arm.com>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>

Nit: can you squash it into patch 14 introducing those functions? Less
patches to carry.
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index 9ce4200508b1..16b48fe9353f 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -20,7 +20,6 @@ 
 #include <asm/cpufeature.h>
 #include <asm/daifflags.h>
 #include <asm/proc-fns.h>
-#include <asm-generic/mm_hooks.h>
 #include <asm/cputype.h>
 #include <asm/sysreg.h>
 #include <asm/tlbflush.h>
@@ -215,6 +214,20 @@  init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 	return 0;
 }
 
+static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+{
+	return 0;
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+}
+
+static inline void arch_unmap(struct mm_struct *mm,
+			unsigned long start, unsigned long end)
+{
+}
+
 #ifdef CONFIG_ARM64_SW_TTBR0_PAN
 static inline void update_saved_ttbr0(struct task_struct *tsk,
 				      struct mm_struct *mm)
@@ -304,6 +317,12 @@  static inline unsigned long mm_untag_mask(struct mm_struct *mm)
 	return -1UL >> 8;
 }
 
+static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
+		bool write, bool execute, bool foreign)
+{
+	return true;
+}
+
 #include <asm-generic/mmu_context.h>
 
 #endif /* !__ASSEMBLY__ */