1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG 5 * Author: Corvin K��hne <c.koehne@beckhoff.com> 6 */ 7 8#pragma once 9 10#include <sys/linker_set.h> 11 12#include <vmmapi.h> 13 14#include "config.h" 15#include "pci_emul.h" 16 17struct passthru_mmio_mapping { 18 vm_paddr_t gpa; /* guest physical address */ 19 void *gva; /* guest virtual address */ 20 vm_paddr_t hpa; /* host physical address */ 21 void *hva; /* guest virtual address */ 22 vm_paddr_t len; 23}; 24 25struct passthru_softc; 26 27struct passthru_dev { 28 int (*probe)(struct pci_devinst *pi); 29 int (*init)(struct pci_devinst *pi, nvlist_t *nvl); 30 void (*deinit)(struct pci_devinst *pi); 31}; 32#define PASSTHRU_DEV_SET(x) DATA_SET(passthru_dev_set, x) 33 34typedef int (*cfgread_handler)(struct passthru_softc *sc, 35 struct pci_devinst *pi, int coff, int bytes, uint32_t *rv); 36typedef int (*cfgwrite_handler)(struct passthru_softc *sc, 37 struct pci_devinst *pi, int coff, int bytes, uint32_t val); 38 39uint32_t pci_host_read_config(const struct pcisel *sel, long reg, int width); 40void pci_host_write_config(const struct pcisel *sel, long reg, int width, 41 uint32_t data); 42 43int passthru_cfgread_emulate(struct passthru_softc *sc, struct pci_devinst *pi, 44 int coff, int bytes, uint32_t *rv); 45int passthru_cfgwrite_emulate(struct passthru_softc *sc, struct pci_devinst *pi, 46 int coff, int bytes, uint32_t val); 47struct passthru_mmio_mapping *passthru_get_mmio(struct passthru_softc *sc, 48 int num); 49struct pcisel *passthru_get_sel(struct passthru_softc *sc); 50int set_pcir_handler(struct passthru_softc *sc, int reg, int len, 51 cfgread_handler rhandler, cfgwrite_handler whandler); 52