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KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue

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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>
This commit is contained in:
Anton Blanchard 2014-06-12 18:16:10 +10:00 committed by Alexander Graf
parent 568fccc43f
commit 05a308c722
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/kvm/book3s_hv_rmhandlers.S
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@ -1913,8 +1913,8 @@ hcall_try_real_mode:
lwax r3,r3,r4 lwax r3,r3,r4
cmpwi r3,0 cmpwi r3,0
beq guest_exit_cont beq guest_exit_cont
add r3,r3,r4 add r12,r3,r4
mtctr r3 mtctr r12
mr r3,r9 /* get vcpu pointer */ mr r3,r9 /* get vcpu pointer */
ld r4,VCPU_GPR(R4)(r9) ld r4,VCPU_GPR(R4)(r9)
bctrl bctrl