commit 011da8996263f799a469a761ee15c998d7ef1acb
author Alexander Graf <agraf@suse.de> Thu Jan 31 14:17:38 2013 +0100
committer Alexander Graf <agraf@suse.de> Wed Feb 13 12:56:45 2013 +0100
tree e4912b9655ba73ccf175176efd8bba44a21e4595
parent ee53e560a8f52cbc1fba877fdf4acffb0c163f29

KVM: PPC: BookE: Handle alignment interrupts

When the guest triggers an alignment interrupt, we don't handle it properly
today and instead BUG_ON(). This really shouldn't happen.

Instead, we should just pass the interrupt back into the guest so it can deal
with it.

Reported-by: Gao Guanhua-B22826 <B22826@freescale.com>
Tested-by: Gao Guanhua-B22826 <B22826@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/kvm/booke_interrupts.S

diff --git a/arch/powerpc/kvm/booke_interrupts.S b/arch/powerpc/kvm/booke_interrupts.S
index eae8483..f4bb55c 100644
--- a/arch/powerpc/kvm/booke_interrupts.S
+++ b/arch/powerpc/kvm/booke_interrupts.S
@@ -45,12 +45,14 @@
                         (1<<BOOKE_INTERRUPT_DEBUG))
 
 #define NEED_DEAR_MASK ((1<<BOOKE_INTERRUPT_DATA_STORAGE) | \
-                        (1<<BOOKE_INTERRUPT_DTLB_MISS))
+                        (1<<BOOKE_INTERRUPT_DTLB_MISS) | \
+                        (1<<BOOKE_INTERRUPT_ALIGNMENT))
 
 #define NEED_ESR_MASK ((1<<BOOKE_INTERRUPT_DATA_STORAGE) | \
                        (1<<BOOKE_INTERRUPT_INST_STORAGE) | \
                        (1<<BOOKE_INTERRUPT_PROGRAM) | \
-                       (1<<BOOKE_INTERRUPT_DTLB_MISS))
+                       (1<<BOOKE_INTERRUPT_DTLB_MISS) | \
+                       (1<<BOOKE_INTERRUPT_ALIGNMENT))
 
 .macro KVM_HANDLER ivor_nr scratch srr0
 _GLOBAL(kvmppc_handler_\ivor_nr)