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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-08-21 09:38:31 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-08-21 13:55:53 +0100 |
| commit | a02d8dfd54cdf3b1b0464ccc2c1c4afe2c003a35 (patch) | |
| tree | b760333143b1fa4e3de0b6c22c854c67a1e47c4a /arch/arm/mm/mmu.c | |
| parent | 3c2aed5b28819564e1a07b4686bd89802bcc4d6b (diff) | |
| download | linux-a02d8dfd54cdf3b1b0464ccc2c1c4afe2c003a35.tar.bz2 | |
ARM: domains: keep vectors in separate domain
Keep the machine vectors in its own domain to avoid software based
user access control from making the vector code inaccessible, and
thereby deadlocking the machine.
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 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 6ca7d9aa896f..a016de248034 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -291,13 +291,13 @@ static struct mem_type mem_types[] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_RDONLY, .prot_l1 = PMD_TYPE_TABLE, - .domain = DOMAIN_USER, + .domain = DOMAIN_VECTORS, }, [MT_HIGH_VECTORS] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_USER | L_PTE_RDONLY, .prot_l1 = PMD_TYPE_TABLE, - .domain = DOMAIN_USER, + .domain = DOMAIN_VECTORS, }, [MT_MEMORY_RWX] = { .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY, |