KVM: x86 emulator: VM86 segments must have DPL 3

Setting the segment DPL to 0 for at least the VM86 code segment makes the VM entry fail on VMX. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
git-mirror · Mar 8, 2012 · 66b0ab8 · 66b0ab8
1 parent 7f3d35f
commit 66b0ab8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
@@ -1244,6 +1244,8 @@ static int load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
 		seg_desc.type = 3;
 		seg_desc.p = 1;
 		seg_desc.s = 1;
+		if (ctxt->mode == X86EMUL_MODE_VM86)
+			seg_desc.dpl = 3;
 		goto load;
 	}