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5398c901f6
Preparing for hybrid mode:
- create vE820 for pre-launched VMs and do other init code when the
vm_config->type is PRE_LAUNCHED_VM.
- create ve820.c for each board because without wrapping by
CONFIG_PARTITION_MODE, ve820_entry[] needs to be visible even when
compiling target boards that haven't enabled pre-launched VMs.
- remove create_prelaunched_vm_e820() from vm.c and implement board
specific function for each $(CONFIG_BOARD)/ve820.c. The reasons being:
- don't need to define ve820_entry[32] for those boards that don't
support pre-launched VMs.
- more importantly, this makes it much easier to create different per-VM
vE820 when it's needed.
Tracked-On: #2291
Signed-off-by: Zide Chen <zide.chen@intel.com>
53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef E820_H
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#define E820_H
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#include <types.h>
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/* E820 memory types */
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#define E820_TYPE_RAM 1U /* EFI 1, 2, 3, 4, 5, 6, 7 */
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#define E820_TYPE_RESERVED 2U
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/* EFI 0, 11, 12, 13 (everything not used elsewhere) */
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#define E820_TYPE_ACPI_RECLAIM 3U /* EFI 9 */
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#define E820_TYPE_ACPI_NVS 4U /* EFI 10 */
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#define E820_TYPE_UNUSABLE 5U /* EFI 8 */
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#define E820_MAX_ENTRIES 32U
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/** Defines a single entry in an E820 memory map. */
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struct e820_entry {
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/** The base address of the memory range. */
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uint64_t baseaddr;
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/** The length of the memory range. */
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uint64_t length;
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/** The type of memory region. */
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uint32_t type;
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} __packed;
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struct e820_mem_params {
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uint64_t mem_bottom;
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uint64_t mem_top;
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uint64_t total_mem_size;
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};
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/* HV read multiboot header to get e820 entries info and calc total RAM info */
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void init_e820(void);
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/* get some RAM below 1MB in e820 entries, hide it from sos_vm, return its start address */
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uint64_t e820_alloc_low_memory(uint32_t size_arg);
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/* get total number of the e820 entries */
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uint32_t get_e820_entries_count(void);
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/* get the e802 entiries */
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const struct e820_entry *get_e820_entry(void);
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/* get the e820 total memory info */
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const struct e820_mem_params *get_e820_mem_info(void);
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#endif
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