vm_assign_pptdev
int vm_assign_pptdev(struct vmctx *ctx, int bus, int slot, int func);
int vm_assign_pptdev(struct vm *vm, int bus, int slot, int func);
error = vm_assign_pptdev(vm, pptdev->bus, pptdev->slot,
if (vm_assign_pptdev(pi->pi_vmctx, bus, slot, func) != 0) {