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[Xen-changelog] Fix ar.unat save/restore for fast rfi (by Anthony Xu)

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Subject:	[Xen-changelog] Fix ar.unat save/restore for fast rfi (by Anthony Xu)
From:	Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date:	Tue, 08 Nov 2005 11:56:08 +0000
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# HG changeset patch
# User djm@xxxxxxxxxxxxxxx
# Node ID 55aaa12a542abae9e77a1110322255d86a156631
# Parent  854cfcbef774484104a72ee105061a00250fd9b6
Fix ar.unat save/restore for fast rfi (by Anthony Xu)

diff -r 854cfcbef774 -r 55aaa12a542a xen/arch/ia64/xen/hyperprivop.S
--- a/xen/arch/ia64/xen/hyperprivop.S   Wed Nov  2 17:45:49 2005
+++ b/xen/arch/ia64/xen/hyperprivop.S   Thu Nov  3 13:14:09 2005
@@ -807,6 +807,7 @@
        // OK, now all set to go except for switch to virtual bank1
        mov r22=1;; st4 [r20]=r22;
        mov r30=r2; mov r29=r3;;
+    mov r17=ar.unat;;
     adds r16=XSI_B1NATS_OFS-XSI_PSR_IC_OFS,r18
        adds r2=XSI_BANK1_OFS-XSI_PSR_IC_OFS,r18;
        adds r3=(XSI_BANK1_OFS+8)-XSI_PSR_IC_OFS,r18;;
@@ -832,6 +833,7 @@
        .mem.offset 8,0; ld8.fill r30=[r2],16 ;
        .mem.offset 8,0; ld8.fill r31=[r3],16 ;;
        bsw.0 ;;
+    mov ar.unat=r17;;
        mov r2=r30; mov r3=r29;;
 1:     mov pr=r31,-1
        ;;

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