KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit
authorGautham R. Shenoy <ego@linux.vnet.ibm.com>
Thu, 21 May 2015 08:27:04 +0000 (13:57 +0530)
committerPaul Mackerras <paulus@samba.org>
Sun, 20 Sep 2015 23:05:12 +0000 (09:05 +1000)
commit7e022e717f54897e396504306d0c9b61452adf4e
treea48ea19323ae9f3868958a1dfd432a9af7111386
parent5fc3e64f941197d5b77abccbe0144b25c2c36f2f
KVM: PPC: Book3S HV: Pass the correct trap argument to kvmhv_commence_exit

In guest_exit_cont we call kvmhv_commence_exit which expects the trap
number as the argument. However r3 doesn't contain the trap number at
this point and as a result we would be calling the function with a
spurious trap number.

Fix this by copying r12 into r3 before calling kvmhv_commence_exit as
r12 contains the trap number.

Cc: stable@vger.kernel.org # v4.1+
Fixes: eddb60fb1443
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/kvm/book3s_hv_rmhandlers.S