* [PATCH] ARM: mm: Fix missing XN flag for for MT_MEMORY_SO
@ 2013-01-16 14:49 Santosh Shilimkar
2013-01-16 23:16 ` Russell King - ARM Linux
0 siblings, 1 reply; 3+ messages in thread
From: Santosh Shilimkar @ 2013-01-16 14:49 UTC (permalink / raw)
To: linux-arm-kernel
Commit 8fb54284ba6a {ARM: mm: Add strongly ordered descriptor support}
added XN flag at section level but missed it at PTE level.
Fix it by adding the L_PTE_XN to MT_MEMORY_SO PET descriptor.
Cc: Russell King <linux@arm•linux.org.uk>
Reported-by: Richard Woodruff <r-woodruff2@ti•com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti•com>
---
arch/arm/mm/mmu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 9f06102..ce328c7 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -283,7 +283,7 @@ static struct mem_type mem_types[] = {
},
[MT_MEMORY_SO] = {
.prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
- L_PTE_MT_UNCACHED,
+ L_PTE_MT_UNCACHED | L_PTE_XN,
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_S |
PMD_SECT_UNCACHED | PMD_SECT_XN,
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread* [PATCH] ARM: mm: Fix missing XN flag for for MT_MEMORY_SO
2013-01-16 14:49 [PATCH] ARM: mm: Fix missing XN flag for for MT_MEMORY_SO Santosh Shilimkar
@ 2013-01-16 23:16 ` Russell King - ARM Linux
2013-01-17 6:20 ` Santosh Shilimkar
0 siblings, 1 reply; 3+ messages in thread
From: Russell King - ARM Linux @ 2013-01-16 23:16 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Jan 16, 2013 at 08:19:22PM +0530, Santosh Shilimkar wrote:
> Commit 8fb54284ba6a {ARM: mm: Add strongly ordered descriptor support}
> added XN flag at section level but missed it at PTE level.
>
> Fix it by adding the L_PTE_XN to MT_MEMORY_SO PET descriptor.
>
> Cc: Russell King <linux@arm•linux.org.uk>
>
> Reported-by: Richard Woodruff <r-woodruff2@ti•com>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti•com>
> ---
Hmm, yes. => patch system please.
> arch/arm/mm/mmu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
> index 9f06102..ce328c7 100644
> --- a/arch/arm/mm/mmu.c
> +++ b/arch/arm/mm/mmu.c
> @@ -283,7 +283,7 @@ static struct mem_type mem_types[] = {
> },
> [MT_MEMORY_SO] = {
> .prot_pte = L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY |
> - L_PTE_MT_UNCACHED,
> + L_PTE_MT_UNCACHED | L_PTE_XN,
> .prot_l1 = PMD_TYPE_TABLE,
> .prot_sect = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_S |
> PMD_SECT_UNCACHED | PMD_SECT_XN,
> --
> 1.7.9.5
>
^ permalink raw reply [flat|nested] 3+ messages in thread* [PATCH] ARM: mm: Fix missing XN flag for for MT_MEMORY_SO
2013-01-16 23:16 ` Russell King - ARM Linux
@ 2013-01-17 6:20 ` Santosh Shilimkar
0 siblings, 0 replies; 3+ messages in thread
From: Santosh Shilimkar @ 2013-01-17 6:20 UTC (permalink / raw)
To: linux-arm-kernel
On Thursday 17 January 2013 04:46 AM, Russell King - ARM Linux wrote:
> On Wed, Jan 16, 2013 at 08:19:22PM +0530, Santosh Shilimkar wrote:
>> Commit 8fb54284ba6a {ARM: mm: Add strongly ordered descriptor support}
>> added XN flag at section level but missed it at PTE level.
>>
>> Fix it by adding the L_PTE_XN to MT_MEMORY_SO PET descriptor.
>>
>> Cc: Russell King <linux@arm•linux.org.uk>
>>
>> Reported-by: Richard Woodruff <r-woodruff2@ti•com>
>> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti•com>
>> ---
>
> Hmm, yes. => patch system please.
>
7629/1 in patch system.
Regards,
Santosh
^ permalink raw reply [flat|nested] 3+ messages in thread
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2013-01-16 14:49 [PATCH] ARM: mm: Fix missing XN flag for for MT_MEMORY_SO Santosh Shilimkar
2013-01-16 23:16 ` Russell King - ARM Linux
2013-01-17 6:20 ` Santosh Shilimkar
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