[PATCH 1/1] ARM: decompressor: Use Domain Manager Access permissions

[Christian Bruel]

EL1 exec access with read/write permissions result in a Permission Fault if
SCTLR.WXN or SCTLR.UWXN is set by the trusted firmware.
Since XN attribute is not checked for domains marked a Manager, change
the domain used for kernel relocation.

Signed-off-by: Christian Bruel <christian.bruel@xxxxxxxxxxx>
---
 arch/arm/boot/compressed/head.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 9f406e9c0ea6..d4ee205f3b9c 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -888,7 +888,7 @@ __armv7_mmu_cache_on:
  ARM_BE8(	orr	r0, r0, #1 << 25 )	@ big-endian page tables
 		mrcne   p15, 0, r6, c2, c0, 2   @ read ttb control reg
 		orrne	r0, r0, #1		@ MMU enabled
-		movne	r1, #0xfffffffd		@ domain 0 = client
+		movne	r1, #0xffffffff		@ domains = Manager
 		bic     r6, r6, #1 << 31        @ 32-bit translation system
 		bic     r6, r6, #(7 << 0) | (1 << 4)	@ use only ttbr0
 		mcrne	p15, 0, r3, c2, c0, 0	@ load page table pointer
-- 
2.34.1