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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 <vmmapi.h>

				#include "qemu_fwcfg.h"

				#pragma pack(push, 1)

				enum e820_memory_type {
				E820_TYPE_MEMORY = 1,
				E820_TYPE_RESERVED = 2,
				E820_TYPE_ACPI = 3,
				E820_TYPE_NVS = 4
				};

				enum e820_allocation_strategy {
				/* allocate any address */
				E820_ALLOCATE_ANY,
				/* allocate lowest address larger than address */
				E820_ALLOCATE_LOWEST,
				/* allocate highest address lower than address */
				E820_ALLOCATE_HIGHEST,
				/* allocate a specific address */
				E820_ALLOCATE_SPECIFIC
				};

				struct e820_entry {
				uint64_t base;
				uint64_t length;
				enum e820_memory_type type;
				};

				#pragma pack(pop)

				#define E820_ALIGNMENT_NONE 1

				uint64_t e820_alloc(const uint64_t address, const uint64_t length,
				const uint64_t alignment, const enum e820_memory_type type,
				const enum e820_allocation_strategy strategy);
				void e820_dump_table();
				struct qemu_fwcfg_item *e820_get_fwcfg_item();
				int e820_init(struct vmctx *const ctx);