From: Keir Fraser <keir.fraser@citrix.com>
Date: Fri, 13 Mar 2009 07:43:45 +0000 (+0000)
Subject: [SVM] fix segment descriptors to allow migration to Intel VT systems
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~13992^2~73
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22?a=commitdiff_plain;h=23599a7fd9d1856f06832be4852738699991ca47;p=xen.git

[SVM] fix segment descriptors to allow migration to Intel VT systems

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
---

diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
index 8b49ae8ff4..bd320fbe1f 100644
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -488,28 +488,40 @@ static void svm_get_segment_register(struct vcpu *v, enum x86_segment seg,
     {
     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));