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[Xen-devel] [PATCH][HVM] fix save/restore on 64b HV

from [Zhai, Edwin]

[Permanent Link][Original]

To:	Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>
Subject:	[Xen-devel] [PATCH][HVM] fix save/restore on 64b HV
From:	"Zhai, Edwin" <edwin.zhai@xxxxxxxxx>
Date:	Tue, 23 Jan 2007 23:14:33 +0800
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, edwin.zhai@xxxxxxxxx
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[PATCH][HVM] fix save/restore on 64b HV

Signed-off-by: Zhai Edwin <edwin.zhai@xxxxxxxxx>

enable hvm_ctxt ops for compat mode to fix HVM save/restore on 64b HV

diff -r b75af612851c xen/arch/x86/domctl.c
--- a/xen/arch/x86/domctl.c     Mon Jan 22 17:31:15 2007 +0000
+++ b/xen/arch/x86/domctl.c     Tue Jan 23 22:00:11 2007 +0800
@@ -311,12 +311,16 @@ _long arch_do_domctl(
         
         ret = -EFAULT;
 
-#ifndef CONFIG_COMPAT
+#ifndef COMPAT
         if ( copy_from_guest(c, domctl->u.hvmcontext.ctxt, 1) != 0 )
+#else
+        if ( copy_from_guest(c,
+                             compat_handle_cast(domctl->u.hvmcontext.ctxt, 
void),
+                             1) != 0 )
+#endif
             goto sethvmcontext_out;
 
         ret = arch_sethvm_ctxt(v, c);
-#endif
 
         xfree(c);
 
@@ -350,12 +354,16 @@ _long arch_do_domctl(
         if (arch_gethvm_ctxt(v, c) == -1)
             ret = -EFAULT;
 
-#ifndef CONFIG_COMPAT
+#ifndef COMPAT
         if ( copy_to_guest(domctl->u.hvmcontext.ctxt, c, 1) )
+#else
+        if ( copy_to_guest(compat_handle_cast(domctl->u.hvmcontext.ctxt,
+                                              void),
+                           c, 1) )
             ret = -EFAULT;
+#endif
 
         xfree(c);
-#endif
 
         if ( copy_to_guest(u_domctl, domctl, 1) )
             ret = -EFAULT;

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