Differential D32961 Diff 98414 usr.sbin/bhyve/tpm2_device_priv.h

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				/*-
				* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
				*
				* Copyright (c) 2021 Beckhoff Automation GmbH & Co. KG
				* Author: Corvin Köhne <c.koehne@beckhoff.com>
				*/

				#pragma once

				#include <sys/linker_set.h>

				#include <vmmapi.h>

				#include "acpi_device.h"
				#include "tpm2_device.h"

				struct tpm2_device_emul {
				const char *name;

				int (init)(struct tpm2_device const dev, struct vmctx *const vm_ctx,
				const char *const opts);
				void (deinit)(struct tpm2_device const dev);
				vm_paddr_t (get_control_address)(const struct tpm2_device const dev);
				int (set_control_address)(struct tpm2_device const dev,
				const vm_paddr_t control_address);
				};
				#define TPM2_DEVICE_EMUL_SET(x) DATA_SET(tpm2_device_emul_set, x)

				/**
				* This struct represents a TPM2 device.
				*
				* @param acpi_dev A TPM2 device is an ACPI device.
				* @param emul Emulation functions for different types of TPM2
				* devices.
				* @param control_address Control address of the TPM device.
				* @param dev_data Device specific data for a specific TPM2 device type.
				*/
				struct tpm2_device {
				struct acpi_device *acpi_dev;
				struct tpm2_device_emul *emul;
				vm_paddr_t control_address;
				void *dev_data;
				};

				/* default emulation functions */
				vm_paddr_t _tpm2_device_get_control_address(
				const struct tpm2_device *const dev);
				int _tpm2_device_set_control_address(struct tpm2_device *const dev,
				const vm_paddr_t control_address);