From 53459dc9709db2141d784702abbd43e8fcac8e6d Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Wed, 29 Apr 2020 16:56:52 +1000 Subject: powerpc/64s/kuap: Restore AMR in system reset exception The system reset interrupt handler locks AMR and exits with EXCEPTION_RESTORE_REGS without restoring AMR. Similarly to the soft-NMI handler, it needs to restore. Fixes: 890274c2dc4c ("powerpc/64s: Implement KUAP for Radix MMU") Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200429065654.1677541-5-npiggin@gmail.com --- arch/powerpc/kernel/exceptions-64s.S | 1 + 1 file changed, 1 insertion(+) (limited to 'arch') diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 728ccb0f560c..b0ad930cbae5 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -971,6 +971,7 @@ EXC_COMMON_BEGIN(system_reset_common) ld r10,SOFTE(r1) stb r10,PACAIRQSOFTMASK(r13) + kuap_restore_amr r10 EXCEPTION_RESTORE_REGS RFI_TO_USER_OR_KERNEL -- cgit v1.2.3