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KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue
author
Anton Blanchard
<anton@samba.org>
Thu, 12 Jun 2014 08:16:10 +0000
(18:16 +1000)
committer
Alexander Graf
<agraf@suse.de>
Mon, 28 Jul 2014 13:22:13 +0000
(15:22 +0200)
To establish addressability quickly, ABIv2 requires the target
address of the function being called to be in r12.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
arch/powerpc/kvm/book3s_hv_rmhandlers.S
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diff --git
a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index
868347e
..
da1cac5
100644
(file)
--- a/
arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/
arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@
-1913,8
+1913,8
@@
hcall_try_real_mode:
lwax r3,r3,r4
cmpwi r3,0
beq guest_exit_cont
- add r
3
,r3,r4
- mtctr r
3
+ add r
12
,r3,r4
+ mtctr r
12
mr r3,r9 /* get vcpu pointer */
ld r4,VCPU_GPR(R4)(r9)
bctrl