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https://github.com/projectacrn/acrn-hypervisor.git
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9b58b9d11d
1. change its APIs as more indepentent, and modify the callers' code 2. limit its global variables as static, and return const to the callers 3. remove unused code in "CONFIG_CMA" Tracked-On: #1842 Signed-off-by: Minggui Cao <minggui.cao@intel.com> Acked-by: Anthony Xu <anthony.xu@intel.com>
46 lines
1.3 KiB
C
46 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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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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uint64_t max_ram_blk_base; /* used for the start address of UOS */
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uint64_t max_ram_blk_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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/* before boot vm0(service OS), call it to hide the HV RAM entry in e820 table from vm0 */
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void rebuild_vm0_e820(void);
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/* get some RAM below 1MB in e820 entries, hide it from vm0, return its start address */
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uint64_t e820_alloc_low_memory(uint32_t size_arg);
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/* copy the original e820 entries info to param_e820 */
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uint32_t create_e820_table(struct e820_entry *param_e820);
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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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#ifdef CONFIG_PARTITION_MODE
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/*
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* Default e820 mem map:
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*
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* Assumption is every VM launched by ACRN in partition mode uses 2G of RAM.
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* there is reserved memory of 64K for MPtable and PCI hole of 512MB
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*/
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#define NUM_E820_ENTRIES 5U
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extern const struct e820_entry e820_default_entries[NUM_E820_ENTRIES];
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#endif
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