Re: [PATCH 3/4] KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue

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On 12.06.14 10:16, Anton Blanchard wrote:
To establish addressability quickly, ABIv2 requires the target
address of the function being called to be in r12.

Signed-off-by: Anton Blanchard <anton@xxxxxxxxx>

Thanks, applied to kvm-ppc-queue.


Alex

---

Index: b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
===================================================================
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1920,8 +1920,8 @@ hcall_try_real_mode:
  	lwax	r3,r3,r4
  	cmpwi	r3,0
  	beq	guest_exit_cont
-	add	r3,r3,r4
-	mtctr	r3
+	add	r12,r3,r4
+	mtctr	r12
  	mr	r3,r9		/* get vcpu pointer */
  	ld	r4,VCPU_GPR(R4)(r9)
  	bctrl

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