Differential D26209 Diff 100964 usr.sbin/bhyve/pci_passthru.h

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usr.sbin/bhyve/pci_passthru.h

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				/*-
				* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
				*
				* Copyright (c) 2020 Beckhoff Automation GmbH & Co. KG
				* Author: Corvin Köhne <c.koehne@beckhoff.com>
				*/

				#pragma once

				#include <sys/pciio.h>

				#include <vmmapi.h>

				#include "pci_emul.h"

				struct passthru_mmio_mapping {
				vm_paddr_t gpa; /* guest physical address */
				void gva; / guest virtual address */
				vm_paddr_t hpa; /* host physical address */
				void hva; / guest virtual address */
				vm_paddr_t len;
				};

				typedef int (cfgread_handler)(struct vmctx const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				uint32_t *const rv);
				typedef int (cfgwrite_handler)(struct vmctx const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				const uint32_t val);

				struct passthru_softc {
				struct pci_devinst *psc_pi;
				/* ROM is handled like a BAR */
				struct pcibar psc_bar[PCI_BARMAX_WITH_ROM + 1];
				struct {
				int capoff;
				int msgctrl;
				int emulated;
				} psc_msi;
				struct {
				int capoff;
				} psc_msix;
				struct pcisel psc_sel;

				struct passthru_mmio_mapping psc_mmio_map[2];
				cfgread_handler psc_pcir_rhandler[PCI_REGMAX + 1];
				cfgwrite_handler psc_pcir_whandler[PCI_REGMAX + 1];
				};

				uint32_t read_config(const struct pcisel *sel, long reg, int width);
				void write_config(const struct pcisel *sel, long reg, int width, uint32_t data);
				int passthru_cfgread_default(struct vmctx *const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				uint32_t *const rv);
				int passthru_cfgread_emulate(struct vmctx *const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				uint32_t *const rv);
				int passthru_cfgwrite_default(struct vmctx *const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				const uint32_t val);
				int passthru_cfgwrite_emulate(struct vmctx *const ctx, const int vcpu,
				struct pci_devinst *const pi, const int coff, const int bytes,
				const uint32_t val);
				int set_pcir_handler(struct passthru_softc *const sc, const uint32_t reg,
				const uint32_t len, const cfgread_handler rhandler,
				const cfgwrite_handler whandler);
				int gvt_d_init(struct vmctx const ctx, struct pci_devinst const pi,
				nvlist_t *const nvl);
				void gvt_d_deinit(struct vmctx const ctx, struct pci_devinst const pi);