[Xen-changelog] [xen-unstable] [SVM] fix segment descriptors to allow migration to Intel VT systems

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1236930225 0
# Node ID 0f7e2ba5d0e62022f0d59b0e098ab9b0747ce1f4
# Parent  f97e737373cdf06726042e7b2732d33cb0a2ba38
[SVM] fix segment descriptors to allow migration to Intel VT systems

Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
---
 xen/arch/x86/hvm/svm/svm.c |   12 ++++++++++++
 1 files changed, 12 insertions(+)

diff -r f97e737373cd -r 0f7e2ba5d0e6 xen/arch/x86/hvm/svm/svm.c
--- a/xen/arch/x86/hvm/svm/svm.c        Fri Mar 13 07:38:47 2009 +0000
+++ b/xen/arch/x86/hvm/svm/svm.c        Fri Mar 13 07:43:45 2009 +0000
@@ -488,28 +488,40 @@ static void svm_get_segment_register(str
     {
     case x86_seg_cs:
         memcpy(reg, &vmcb->cs, sizeof(*reg));
+        reg->attr.fields.g = reg->limit > 0xFFFFF;
         break;
     case x86_seg_ds:
         memcpy(reg, &vmcb->ds, sizeof(*reg));
+        if ( reg->attr.fields.type != 0 )
+            reg->attr.fields.type |= 0x1;
         break;
     case x86_seg_es:
         memcpy(reg, &vmcb->es, sizeof(*reg));
+        if ( reg->attr.fields.type != 0 )
+            reg->attr.fields.type |= 0x1;
         break;
     case x86_seg_fs:
         svm_sync_vmcb(v);
         memcpy(reg, &vmcb->fs, sizeof(*reg));
+        if ( reg->attr.fields.type != 0 )
+            reg->attr.fields.type |= 0x1;
         break;
     case x86_seg_gs:
         svm_sync_vmcb(v);
         memcpy(reg, &vmcb->gs, sizeof(*reg));
+        if ( reg->attr.fields.type != 0 )
+            reg->attr.fields.type |= 0x1;
         break;
     case x86_seg_ss:
         memcpy(reg, &vmcb->ss, sizeof(*reg));
         reg->attr.fields.dpl = vmcb->cpl;
+        if ( reg->attr.fields.type == 0 )
+            reg->attr.fields.db = 0;
         break;
     case x86_seg_tr:
         svm_sync_vmcb(v);
         memcpy(reg, &vmcb->tr, sizeof(*reg));
+        reg->attr.fields.type |= 0x2;
         break;
     case x86_seg_gdtr:
         memcpy(reg, &vmcb->gdtr, sizeof(*reg));

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