diff options
| author | York Sun <york.sun@nxp.com> | 2017-03-06 09:02:33 -0800 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-03-14 08:44:03 -0700 |
| commit | 7f9b9f318ff152bd8d2e8b573708e2bdc088c1b1 (patch) | |
| tree | 1e68c347794e41aff62d8ea9091d88d05c269d6e /arch/arm/include/asm/system.h | |
| parent | f539c8a4a7a590e1933a7e21d5771528db1d88b7 (diff) | |
armv8: mmu: Add a function to change mapping attributes
Function mmu_change_region_attr() is added to change existing mapping
with updated PXN, UXN and memory type. This is a break-before-make
process during which the mapping becomes fault (invalid) before final
attributres are set.
Signed-off-by: York Sun <york.sun@nxp.com>
Diffstat (limited to 'arch/arm/include/asm/system.h')
| -rw-r--r-- | arch/arm/include/asm/system.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 766e929d46..9c3261c884 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -226,6 +226,7 @@ void protect_secure_region(void); void smp_kick_all_cpus(void); void flush_l3_cache(void); +void mmu_change_region_attr(phys_addr_t start, size_t size, u64 attrs); /* *Issue a secure monitor call in accordance with ARM "SMC Calling convention", |