KVM_REQUEST_MASK 1207 include/linux/kvm_host.h set_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); KVM_REQUEST_MASK 1217 include/linux/kvm_host.h return test_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests); KVM_REQUEST_MASK 1222 include/linux/kvm_host.h clear_bit(req & KVM_REQUEST_MASK, (void *)&vcpu->requests);