2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
5 * Author: Corvin Köhne <c.koehne@beckhoff.com>
10 #include <sys/linker_set.h>
17 struct 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 */
25 struct passthru_softc;
28 int (*probe)(struct pci_devinst *pi);
29 int (*init)(struct pci_devinst *pi, nvlist_t *nvl);
30 void (*deinit)(struct pci_devinst *pi);
32 #define PASSTHRU_DEV_SET(x) DATA_SET(passthru_dev_set, x)
34 typedef int (*cfgread_handler)(struct passthru_softc *sc,
35 struct pci_devinst *pi, int coff, int bytes, uint32_t *rv);
36 typedef int (*cfgwrite_handler)(struct passthru_softc *sc,
37 struct pci_devinst *pi, int coff, int bytes, uint32_t val);
39 uint32_t read_config(const struct pcisel *sel, long reg, int width);
40 void write_config(const struct pcisel *sel, long reg, int width, uint32_t data);
41 int passthru_cfgread_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
42 int coff, int bytes, uint32_t *rv);
43 int passthru_cfgwrite_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
44 int coff, int bytes, uint32_t val);
45 struct passthru_mmio_mapping *passthru_get_mmio(struct passthru_softc *sc,
47 struct pcisel *passthru_get_sel(struct passthru_softc *sc);
48 int set_pcir_handler(struct passthru_softc *sc, int reg, int len,
49 cfgread_handler rhandler, cfgwrite_handler whandler);