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hv_asm: Turn off PAN on exception entry

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Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-05-09 03:11:10 +09:00
parent 4c043a0f97
commit 52823eaab6
1 changed files with 4 additions and 0 deletions
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4
src/hv_asm.S
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@ -48,6 +48,7 @@ _hv_vectors_start:
.globl _v_hv_sync .globl _v_hv_sync
.type _v_hv_sync, @function .type _v_hv_sync, @function
_v_hv_sync: _v_hv_sync:
msr pan, #0
str x30, [sp, #-16]! str x30, [sp, #-16]!
bl _exc_entry bl _exc_entry
bl hv_exc_sync bl hv_exc_sync
@ -57,6 +58,7 @@ _v_hv_sync:
.globl _v_hv_irq .globl _v_hv_irq
.type _v_hv_irq, @function .type _v_hv_irq, @function
_v_hv_irq: _v_hv_irq:
msr pan, #0
str x30, [sp, #-16]! str x30, [sp, #-16]!
bl _exc_entry bl _exc_entry
bl hv_exc_irq bl hv_exc_irq
@ -66,6 +68,7 @@ _v_hv_irq:
.globl _v_hv_fiq .globl _v_hv_fiq
.type _v_hv_fiq, @function .type _v_hv_fiq, @function
_v_hv_fiq: _v_hv_fiq:
msr pan, #0
str x30, [sp, #-16]! str x30, [sp, #-16]!
bl _exc_entry bl _exc_entry
bl hv_exc_fiq bl hv_exc_fiq
@ -75,6 +78,7 @@ _v_hv_fiq:
.globl _v_hv_serr .globl _v_hv_serr
.type _v_hv_serr, @function .type _v_hv_serr, @function
_v_hv_serr: _v_hv_serr:
msr pan, #0
str x30, [sp, #-16]! str x30, [sp, #-16]!
bl _exc_entry bl _exc_entry
bl hv_exc_serr bl hv_exc_serr