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3d99082411
In addition to a single OVMF image (OVMF.fd), split images (OVMF_CODE.fd, OVMF_VARS.fd) can be used to facilitate VM management. From the OVMF Whitepaper: The variable store and the firmware executable are also available in the build output as separate files entitled: "OVMF_VARS.fd" and "OVMF_CODE.fd". This enables central management and updates of the firmware executable, while each virtual machine can retain its own variable store. An example to launch acrn-dm with the split images: --ovmf code=/usr/share/acrn/bios/OVMF_CODE.fd, \ vars=/usr/share/acrn/bios/OVMF_VARS.fd v1 -> v2: - use memory-mapped file I/O for writeback - use fcntl to lock OVMF image files Tracked-On: #5487 Signed-off-by: Peter Fang <peter.fang@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/*-
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* Copyright (c) 2018 Intel Corporation
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _CORE_SW_LOAD_
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#define _CORE_SW_LOAD_
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#define STR_LEN 1024
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#define BOOT_ARG_LEN 2048
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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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/* EFI 0, 11, 12, 13 (everything not used elsewhere) */
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#define E820_TYPE_RESERVED 2U
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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 NUM_E820_ENTRIES 9
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#define LOWRAM_E820_ENTRY 1
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#define HIGHRAM_E820_ENTRY 6
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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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} __attribute__((packed));
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extern const struct e820_entry e820_default_entries[NUM_E820_ENTRIES];
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extern int with_bootargs;
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size_t ovmf_image_size(void);
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int acrn_parse_kernel(char *arg);
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int acrn_parse_ramdisk(char *arg);
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int acrn_parse_bootargs(char *arg);
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int acrn_parse_gvtargs(char *arg);
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int acrn_parse_vsbl(char *arg);
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int acrn_parse_ovmf(char *arg);
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int acrn_parse_elf(char *arg);
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int acrn_parse_guest_part_info(char *arg);
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char *get_bootargs(void);
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void vsbl_set_bdf(int bnum, int snum, int fnum);
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int check_image(char *path, size_t size_limit, size_t *size);
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uint32_t acrn_create_e820_table(struct vmctx *ctx, struct e820_entry *e820);
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int add_e820_entry(struct e820_entry *e820, int len, uint64_t start,
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uint64_t size, uint32_t type);
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int acrn_sw_load_bzimage(struct vmctx *ctx);
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int acrn_sw_load_elf(struct vmctx *ctx);
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int acrn_sw_load_vsbl(struct vmctx *ctx);
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int acrn_sw_load_ovmf(struct vmctx *ctx);
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int acrn_writeback_ovmf_nvstorage(struct vmctx *ctx);
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int acrn_sw_load(struct vmctx *ctx);
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#endif
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