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https://github.com/freebsd/freebsd-src
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01d53c34e7
read_config() and write_config() are externally visible, so give them more descriptive names. No functional change intended. MFC after: 1 week Sponsored by: Innovate UK
52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
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* Author: Corvin Köhne <c.koehne@beckhoff.com>
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*/
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#pragma once
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#include <sys/linker_set.h>
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#include <vmmapi.h>
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#include "config.h"
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#include "pci_emul.h"
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struct passthru_mmio_mapping {
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vm_paddr_t gpa; /* guest physical address */
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void *gva; /* guest virtual address */
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vm_paddr_t hpa; /* host physical address */
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void *hva; /* guest virtual address */
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vm_paddr_t len;
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};
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struct passthru_softc;
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struct passthru_dev {
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int (*probe)(struct pci_devinst *pi);
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int (*init)(struct pci_devinst *pi, nvlist_t *nvl);
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void (*deinit)(struct pci_devinst *pi);
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};
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#define PASSTHRU_DEV_SET(x) DATA_SET(passthru_dev_set, x)
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typedef int (*cfgread_handler)(struct passthru_softc *sc,
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struct pci_devinst *pi, int coff, int bytes, uint32_t *rv);
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typedef int (*cfgwrite_handler)(struct passthru_softc *sc,
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struct pci_devinst *pi, int coff, int bytes, uint32_t val);
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uint32_t pci_host_read_config(const struct pcisel *sel, long reg, int width);
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void pci_host_write_config(const struct pcisel *sel, long reg, int width,
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uint32_t data);
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int passthru_cfgread_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
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int coff, int bytes, uint32_t *rv);
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int passthru_cfgwrite_emulate(struct passthru_softc *sc, struct pci_devinst *pi,
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int coff, int bytes, uint32_t val);
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struct passthru_mmio_mapping *passthru_get_mmio(struct passthru_softc *sc,
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int num);
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struct pcisel *passthru_get_sel(struct passthru_softc *sc);
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int set_pcir_handler(struct passthru_softc *sc, int reg, int len,
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cfgread_handler rhandler, cfgwrite_handler whandler);
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