TODO(ZX-3106)
#include <zircon/syscalls.h> zx_status_t zx_pci_query_irq_mode(zx_handle_t handle, uint32_t mode, uint32_t* out_max_irqs);
TODO(ZX-3106)
handle must be of type ZX_OBJ_TYPE_PCI_DEVICE and have ZX_RIGHT_READ.
TODO(ZX-3106)
TODO(ZX-3106)
TODO(ZX-3106)