2 * SPDX-License-Identifier: BSD-2-Clause
4 * Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
5 * Author: Corvin Köhne <c.koehne@beckhoff.com>
14 struct passthru_mmio_mapping {
15 vm_paddr_t gpa; /* guest physical address */
16 void *gva; /* guest virtual address */
17 vm_paddr_t hpa; /* host physical address */
18 void *hva; /* guest virtual address */
22 struct passthru_softc;
24 typedef int (*cfgread_handler)(struct passthru_softc *sc,
25 struct pci_devinst *pi, int coff, int bytes, uint32_t *rv);
26 typedef int (*cfgwrite_handler)(struct passthru_softc *sc,
27 struct pci_devinst *pi, int coff, int bytes, uint32_t val);
29 uint32_t read_config(const struct pcisel *sel, long reg, int width);
30 void write_config(const struct pcisel *sel, long reg, int width, uint32_t data);
31 int passthru_cfgread_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
32 int coff, int bytes, uint32_t *rv);
33 int passthru_cfgwrite_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
34 int coff, int bytes, uint32_t val);
35 struct passthru_mmio_mapping *passthru_get_mmio(struct passthru_softc *sc,
37 struct pcisel *passthru_get_sel(struct passthru_softc *sc);
38 int set_pcir_handler(struct passthru_softc *sc, int reg, int len,
39 cfgread_handler rhandler, cfgwrite_handler whandler);