diff options
| -rw-r--r-- | arch/x86/kvm/emulate.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index fa4604e0325..836e97ba45d 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -2520,6 +2520,13 @@ twobyte_insn: c->dst.type = OP_NONE; break; case 0x20: /* mov cr, reg */ + switch (c->modrm_reg) { + case 1: + case 5 ... 7: + case 9 ... 15: + kvm_queue_exception(ctxt->vcpu, UD_VECTOR); + goto done; + } c->regs[c->modrm_rm] = ops->get_cr(c->modrm_reg, ctxt->vcpu); c->dst.type = OP_NONE; /* no writeback */ break; |