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https://github.com/projectacrn/acrn-hypervisor.git
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951a24cd3d
To reduce the call to dynamic memory allocation, the patch tries to alloate memroy together with hypervisor when hypervisor is being relocated by efi stub code. The memory allocated will be right at the end of HV memory. Three structs will be done in this way: 1) boot_ctx, which saves EFI boot state and is passed to SOS; 2) multiboot_info, faked multi-boot header for passing boot info to hypervisor; and 3) multiboot_mmap, e820 mmap structure. after this, the EFI stub code (which boot hypervisor) will only have 3 to dynamic memory: 1. the call for hv binary and the 3 struct; 2. the call to CPU boot trampoline code; 3. the call to alloc mmap buf when inquery memory layout from UEFI FW; Tracked-On:#1260 Signed-off-by: Chaohong Guo <chaohong.guo@intel.com> Reviewed-by: Jason Chen <jason.cj.chen@intel.com> Reviewed-by: Anthony Xu <Anthony.Xu@intel.com> Reviewed-by: Eddie Dong <Eddid.Dong@intel.com> Acked-by: Gen Zheng <gen.zheng@intel.com>
185 lines
5.6 KiB
C
185 lines
5.6 KiB
C
/* [ORIGIN: src/sys/arch/i386/include/... */
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/* $NetBSD: multiboot.h,v 1.8 2009/02/22 18:05:42 ahoka Exp $ */
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/*-
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* Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Julio M. Merino Vidal.
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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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* multiboot.h
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*/
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#ifndef _MULTIBOOT_H
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#define _MULTIBOOT_H
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#include <stdint.h>
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struct multiboot_info;
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extern struct multiboot_info mbi;
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// ========================================================================
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/*
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* Multiboot header structure.
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*/
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#define MULTIBOOT_HEADER_MAGIC 0x1BADB002
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#define MULTIBOOT_HEADER_MODS_ALIGNED 0x00000001
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#define MULTIBOOT_HEADER_WANT_MEMORY 0x00000002
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#define MULTIBOOT_HEADER_HAS_VBE 0x00000004
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#define MULTIBOOT_HEADER_HAS_ADDR 0x00010000
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#if !defined(_LOCORE)
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struct multiboot_header {
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uint32_t mh_magic;
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uint32_t mh_flags;
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uint32_t mh_checksum;
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/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_ADDR. */
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uint32_t mh_header_addr;
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uint32_t mh_load_addr;
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uint32_t mh_load_end_addr;
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uint32_t mh_bss_end_addr;
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uint32_t mh_entry_addr;
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/* Valid if mh_flags sets MULTIBOOT_HEADER_HAS_VBE. */
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uint32_t mh_mode_type;
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uint32_t mh_width;
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uint32_t mh_height;
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uint32_t mh_depth;
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};
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#endif /* !defined(_LOCORE) */
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/*
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* Symbols defined in locore.S.
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*/
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extern struct multiboot_header *Multiboot_Header;
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// ========================================================================
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/*
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* Multiboot information structure.
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*/
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#define MULTIBOOT_INFO_MAGIC 0x2BADB002U
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#define MULTIBOOT_INFO_HAS_MEMORY 0x00000001U
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#define MULTIBOOT_INFO_HAS_BOOT_DEVICE 0x00000002U
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#define MULTIBOOT_INFO_HAS_CMDLINE 0x00000004U
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#define MULTIBOOT_INFO_HAS_MODS 0x00000008U
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#define MULTIBOOT_INFO_HAS_AOUT_SYMS 0x00000010U
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#define MULTIBOOT_INFO_HAS_ELF_SYMS 0x00000020U
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#define MULTIBOOT_INFO_HAS_MMAP 0x00000040U
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#define MULTIBOOT_INFO_HAS_DRIVES 0x00000080U
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#define MULTIBOOT_INFO_HAS_CONFIG_TABLE 0x00000100U
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#define MULTIBOOT_INFO_HAS_LOADER_NAME 0x00000200U
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#define MULTIBOOT_INFO_HAS_APM_TABLE 0x00000400U
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#define MULTIBOOT_INFO_HAS_VBE 0x00000800U
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#if !defined(_LOCORE)
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struct multiboot_info {
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uint32_t mi_flags;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MEMORY. */
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uint32_t mi_mem_lower;
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uint32_t mi_mem_upper;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_BOOT_DEVICE. */
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uint8_t mi_boot_device_part3;
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uint8_t mi_boot_device_part2;
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uint8_t mi_boot_device_part1;
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uint8_t mi_boot_device_drive;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CMDLINE. */
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uint32_t mi_cmdline;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MODS. */
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uint32_t mi_mods_count;
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uint32_t mi_mods_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_{AOUT,ELF}_SYMS. */
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uint32_t mi_elfshdr_num;
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uint32_t mi_elfshdr_size;
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uint32_t mi_elfshdr_addr;
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uint32_t mi_elfshdr_shndx;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_MMAP. */
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uint32_t mi_mmap_length;
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uint32_t mi_mmap_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_DRIVES. */
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uint32_t mi_drives_length;
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uint32_t mi_drives_addr;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_CONFIG_TABLE. */
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uint32_t unused_mi_config_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_LOADER_NAME. */
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uint32_t mi_loader_name;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_APM. */
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uint32_t unused_mi_apm_table;
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/* Valid if mi_flags sets MULTIBOOT_INFO_HAS_VBE. */
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uint32_t unused_mi_vbe_control_info;
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uint32_t unused_mi_vbe_mode_info;
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uint32_t unused_mi_vbe_interface_seg;
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uint32_t unused_mi_vbe_interface_off;
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uint32_t unused_mi_vbe_interface_len;
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}__attribute__((aligned(8)));
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/*
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* Memory mapping. This describes an entry in the memory mappings table
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* as pointed to by mi_mmap_addr.
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*
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* Be aware that mm_size specifies the size of all other fields *except*
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* for mm_size. In order to jump between two different entries, you
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* have to count mm_size + 4 bytes.
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*/
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struct __attribute__((packed)) multiboot_mmap {
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uint32_t mm_size;
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uint64_t mm_base_addr;
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uint64_t mm_length;
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uint32_t mm_type;
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};
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/*
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* Modules. This describes an entry in the modules table as pointed
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* to by mi_mods_addr.
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*/
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struct multiboot_module {
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uint32_t mmo_start;
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uint32_t mmo_end;
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char * mmo_string;
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uint32_t mmo_reserved;
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};
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#endif /* !defined(_LOCORE) */
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// ========================================================================
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#endif /* _MULTIBOOT_H */
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