KVM: x86 emulator: VM86 segments must have DPL 3 · 66b0ab8fac - Gogs

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>

Kevin Wolf 13 years ago

parent

7f3d35fddd

commit

66b0ab8fac

1 changed files with 2 additions and 0 deletions

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arch/x86/kvm/emulate.c
							 
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				@@ -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;
			
				 	}