MSR_DS
vcpu->arch.shadow_msr = MSR_USER | MSR_IS | MSR_DS;
return !!(vcpu->arch.shared->msr & (MSR_IS | MSR_DS));
unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);
unsigned int as = !!(vcpu->arch.shared->msr & MSR_DS);