* [U-Boot] [PATCH] armv8: fsl-layerscape: Fix final MMU table for QSPI and IFC
@ 2017-08-29 13:42 Suresh Gupta
2017-09-13 2:25 ` York Sun
0 siblings, 1 reply; 2+ messages in thread
From: Suresh Gupta @ 2017-08-29 13:42 UTC (permalink / raw)
To: u-boot
For QSPI and IFC addresses execution shouldn't be allowed
when u-boot running from DDR. Revise the MMU final table
to enforce execute-never bits.
Signed-off-by: Suresh Gupta <suresh.gupta@nxp.com>
---
arch/arm/include/asm/arch-fsl-layerscape/cpu.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
index c4e5ecc..3d564d6 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h
@@ -199,7 +199,8 @@ static struct mm_region final_map[] = {
},
{ CONFIG_SYS_FSL_QSPI_BASE1, CONFIG_SYS_FSL_QSPI_BASE1,
CONFIG_SYS_FSL_QSPI_SIZE1,
- PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_NON_SHARE
+ PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN
},
{ CONFIG_SYS_FSL_QSPI_BASE2, CONFIG_SYS_FSL_QSPI_BASE2,
CONFIG_SYS_FSL_QSPI_SIZE2,
@@ -208,7 +209,8 @@ static struct mm_region final_map[] = {
},
{ CONFIG_SYS_FSL_IFC_BASE2, CONFIG_SYS_FSL_IFC_BASE2,
CONFIG_SYS_FSL_IFC_SIZE2,
- PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE
+ PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN
},
{ CONFIG_SYS_FSL_DCSR_BASE, CONFIG_SYS_FSL_DCSR_BASE,
CONFIG_SYS_FSL_DCSR_SIZE,
--
1.9.3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [U-Boot] [PATCH] armv8: fsl-layerscape: Fix final MMU table for QSPI and IFC
2017-08-29 13:42 [U-Boot] [PATCH] armv8: fsl-layerscape: Fix final MMU table for QSPI and IFC Suresh Gupta
@ 2017-09-13 2:25 ` York Sun
0 siblings, 0 replies; 2+ messages in thread
From: York Sun @ 2017-09-13 2:25 UTC (permalink / raw)
To: u-boot
On 08/29/2017 06:42 AM, Suresh Gupta wrote:
> For QSPI and IFC addresses execution shouldn't be allowed
> when u-boot running from DDR. Revise the MMU final table
> to enforce execute-never bits.
>
> Signed-off-by: Suresh Gupta <suresh.gupta@nxp.com>
> ---
Applied to fsl-qoriq master. Thanks.
York
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-08-29 13:42 [U-Boot] [PATCH] armv8: fsl-layerscape: Fix final MMU table for QSPI and IFC Suresh Gupta
2017-09-13 2:25 ` York Sun
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