diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-25 12:01:03 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-12-11 09:53:22 +0000 |
| commit | 71b55663c5d0a6f8473045db1c8b376803780191 (patch) | |
| tree | f100d5b7fbe51b4c78ba306334f1e37763cd5048 /arch/arm/mm/mmu.c | |
| parent | dca9aa92fc7caa3620b31ced1535968f4aeeb967 (diff) | |
ARM: fix executability of CMA mappings
The CMA region was being marked executable:
0xdc04e000-0xdc050000 8K RW x MEM/CACHED/WBRA
0xdc060000-0xdc100000 640K RW x MEM/CACHED/WBRA
0xdc4f5000-0xdc500000 44K RW x MEM/CACHED/WBRA
0xdcce9000-0xe0000000 52316K RW x MEM/CACHED/WBRA
This is mainly due to the badly worded MT_MEMORY_DMA_READY symbol, but
there are also a few other places in dma-mapping which should be
corrected to use the right constant. Fix all these places:
0xdc04e000-0xdc050000 8K RW NX MEM/CACHED/WBRA
0xdc060000-0xdc100000 640K RW NX MEM/CACHED/WBRA
0xdc280000-0xdc300000 512K RW NX MEM/CACHED/WBRA
0xdc6fc000-0xe0000000 58384K RW NX MEM/CACHED/WBRA
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 09033890c8b..4f08c133cc2 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -333,7 +333,8 @@ static struct mem_type mem_types[] = { .domain = DOMAIN_KERNEL, }, [MT_MEMORY_DMA_READY] = { - .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY, + .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | + L_PTE_XN, .prot_l1 = PMD_TYPE_TABLE, .domain = DOMAIN_KERNEL, }, |