Differential D27456 Diff 85831 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
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY THE AUTHOR OR CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*
				* $FreeBSD$
				*/

				#pragma once

				#include <sys/pciio.h>

				#include <vmmapi.h>

				#include "pci_emul.h"

				struct passthru_mmio_mapping {
				uint64_t gpa;
				uint64_t len;
				uint64_t hpa;
				};

				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];
				uint8_t psc_pcir_prot_map[(PCI_REGMAX + 1) / 4];
				};

				#define PT_MAP_PPTDEV_MMIO 1
				#define PT_UNMAP_PPTDEV_MMIO 0

				#define PPT_PCIR_PROT_NA 0 /* No Access to physical values */
				#define PPT_PCIR_PROT_RO 1 /* Read Only access to physical values */
				#define PPT_PCIR_PROT_WO 2 /* Write Only access to physical values */
				#define PPT_PCIR_PROT_RW \
				(PPT_PCIR_PROT_RO \| \
				PPT_PCIR_PROT_WO) /* Read/Write access to physical values */
				#define PPT_PCIR_PROT_MASK 0x03

				int passthru_modify_pptdev_mmio(struct vmctx ctx, struct passthru_softc sc,
				struct passthru_mmio_mapping *map, int registration);
				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 set_pcir_prot(
				struct passthru_softc *sc, uint32_t reg, uint32_t len, uint8_t prot);
				int gvt_d_amd_init(struct vmctx ctx, struct pci_devinst pi, char *opts);
				int gvt_d_amd_addr_rom(struct pci_devinst *pi, int idx, int enabled);