Commit 9034f625 authored by Julien Thierry's avatar Julien Thierry Committed by Catalin Marinas

arm64: Do not enable IRQs for ct_user_exit

For el0_dbg and el0_error, DAIF bits get explicitly cleared before
calling ct_user_exit.

When context tracking is disabled, DAIF gets set (almost) immediately
after. When context tracking is enabled, among the first things done
is disabling IRQs.

What is actually needed is:
- PSR.D = 0 so the system can be debugged (should be already the case)
- PSR.A = 0 so async error can be handled during context tracking

Do not clear PSR.I in those two locations.
Reviewed-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Reviewed-by: default avatarJames Morse <james.morse@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: default avatarJulien Thierry <julien.thierry@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 8f5c9037
......@@ -870,7 +870,7 @@ el0_dbg:
mov x1, x25
mov x2, sp
bl do_debug_exception
enable_daif
enable_da_f
ct_user_exit
b ret_to_user
el0_inv:
......@@ -922,7 +922,7 @@ el0_error_naked:
enable_dbg
mov x0, sp
bl do_serror
enable_daif
enable_da_f
ct_user_exit
b ret_to_user
ENDPROC(el0_error)
......
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