[Xen-devel] [PATCH] xen/arm64: fix section shift when mapping 2MB block in boot page table

[Chen Baozi <baozich@xxxxxxxxx>]

Section shift for level-2 page table should be #21 rather than #20.

Signed-off-by: Chen Baozi <baozich@xxxxxxxxx>
---
 xen/arch/arm/arm64/head.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/arm64/head.S b/xen/arch/arm/arm64/head.S
index bebddf0..ad35f60 100644
--- a/xen/arch/arm/arm64/head.S
+++ b/xen/arch/arm/arm64/head.S
@@ -292,8 +292,8 @@ skip_bss:
         ldr   x4, =boot_second
         add   x4, x4, x20            /* x4 := paddr (boot_second) */
 
-        lsr   x2, x19, #20           /* Base address for 2MB mapping */
-        lsl   x2, x2, #20
+        lsr   x2, x19, #21           /* Base address for 2MB mapping */
+        lsl   x2, x2, #21
         mov   x3, #PT_MEM            /* x2 := Section map */
         orr   x2, x2, x3
 
-- 
1.8.4.3


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