KVM: ia64: Fix: Use correct calling convention for PAL_VPS_RESUME_HANDLER

PAL_VPS_RESUME_HANDLER should use r26 to hold vac fields according to SDM.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/ia64/kvm/optvfault.S b/arch/ia64/kvm/optvfault.S
index 634abad979b5143953e6eae5191eff3b4a673bc1..32254ce9a1bda61a25f3edce6143206a7d651aa1 100644 (file)
--- a/arch/ia64/kvm/optvfault.S
+++ b/arch/ia64/kvm/optvfault.S
@@ -107,10 +107,10 @@ END(kvm_vps_resume_normal)
 GLOBAL_ENTRY(kvm_vps_resume_handler)
        movl r30 = PAL_VPS_RESUME_HANDLER
        ;;
-       ld8 r27=[r25]
+       ld8 r26=[r25]
        shr r17=r17,IA64_ISR_IR_BIT
        ;;
-       dep r27=r17,r27,63,1   // bit 63 of r27 indicate whether enable CFLE
+       dep r26=r17,r26,63,1   // bit 63 of r26 indicate whether enable CFLE
        mov pr=r23,-2
        br.sptk.many kvm_vps_entry
 END(kvm_vps_resume_handler)
@@ -894,12 +894,15 @@ ENTRY(kvm_resume_to_guest)
        ;;
        ld8 r19=[r19]
        mov b0=r29
-       cmp.ne p6,p7 = r0,r0
+       mov r27=cr.isr
        ;;
-       tbit.z p6,p7 = r19,IA64_PSR_IC_BIT              // p1=vpsr.ic
+       tbit.z p6,p7 = r19,IA64_PSR_IC_BIT              // p7=vpsr.ic
+       shr r27=r27,IA64_ISR_IR_BIT
        ;;
        (p6) ld8 r26=[r25]
        (p7) mov b0=r28
+       ;;
+       (p6) dep r26=r27,r26,63,1
        mov pr=r31,-2
        br.sptk.many b0             // call pal service
        ;;