[Xen-ia64-devel] [PATCH 3/12] fix vmx_switch_rr7

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

# HG changeset patch
# User yamahata@xxxxxxxxxxxxx
# Date 1197967035 -32400
# Node ID 425cd56ef7a955c593cc70c1ea5755c0b72e97b2
# Parent  36157b55e141ab4f9bd3134bdcddd38c1f126666
fix vmx_switch_rr7(). uninitialized register r3 was used. initialize it.
PATCHNAME: fix_vmx_switch_rr7_initialize_r3

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r 36157b55e141 -r 425cd56ef7a9 xen/arch/ia64/vmx/vmx_entry.S
--- a/xen/arch/ia64/vmx/vmx_entry.S     Tue Dec 18 17:37:14 2007 +0900
+++ b/xen/arch/ia64/vmx/vmx_entry.S     Tue Dec 18 17:37:15 2007 +0900
@@ -634,7 +634,7 @@ 1:{
        movl loc2=PERCPU_ADDR
        ;;
        tpa loc2 = loc2                 // get physical address of per cpu date
-       ;;
+       tpa r3 = r8                     // get physical address of ip
        dep loc5 = 0,in1,60,4           // get physical address of guest_vhpt
        dep loc6 = 0,in2,60,4           // get physical address of pal code
        ;;
@@ -671,9 +671,7 @@ 1:
        mov cr.itir=r18
        mov cr.ifa=r17
        mov r16=IA64_TR_KERNEL
-       //mov r3=ip
        movl r25 = PAGE_KERNEL
-       ;;
        dep r2=0,r3,0,KERNEL_TR_PAGE_SHIFT
        ;;
        or r24=r2,r25

Attachment: 16635_425cd56ef7a9_fix_vmx_switch_rr7_initialize_r3.patch
Description: Text Data

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