stand/multiboot2: add support for booting a Xen dom0 in UEFI mode
Add some basic multiboot2 infrastructure to the EFI loader in order to be capable of booting a FreeBSD/Xen dom0 when booted from UEFI. Only a very limited subset of the multiboot2 protocol is implemented in order to support enough to boot into Xen, the implementation doesn't intend to be a full multiboot2 capable implementation. Such multiboot2 functionality is hooked up into the amd64 EFI loader, which is the only architecture that supports Xen dom0 on FreeBSD. The options to boot a FreeBSD/Xen dom0 system are exactly the same as on BIOS, and requires setting the xen_kernel and xen_cmdline options in loader.conf. Sponsored by: Citrix Systems R&D Reviewed by: tsoome, imp Differential revision: https://reviews.freebsd.org/D28497
This commit is contained in:
Roger Pau Monné
parent
7d3259775c
commit
adda2797eb
@ -4,6 +4,7 @@ SRCS+= amd64_tramp.S \
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start.S \
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start.S \
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elf64_freebsd.c \
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elf64_freebsd.c \
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trap.c \
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trap.c \
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multiboot2.c \
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exc.S
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exc.S
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.PATH: ${BOOTSRC}/i386/libi386
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.PATH: ${BOOTSRC}/i386/libi386
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@ -30,6 +30,9 @@
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#include <machine/asmacros.h>
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#include <machine/asmacros.h>
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#define ASM_FILE
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#include "multiboot2.h"
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.text
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.text
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.globl amd64_tramp
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.globl amd64_tramp
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@ -58,6 +61,15 @@ amd64_tramp:
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ALIGN_TEXT
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ALIGN_TEXT
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amd64_tramp_end:
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amd64_tramp_end:
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/* void multiboot2_exec(uint64_t entry, uint64_t multiboot_info, uint64_t stack) */
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.globl multiboot2_exec
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multiboot2_exec:
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movq %rdx,%rsp
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pushq %rdi
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movq %rsi,%rbx
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movq $MULTIBOOT2_BOOTLOADER_MAGIC,%rax
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ret
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.data
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.data
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.globl amd64_tramp_size
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.globl amd64_tramp_size
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amd64_tramp_size:
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amd64_tramp_size:
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@ -69,7 +69,12 @@ static struct file_format amd64_elf_obj = {
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.l_exec = elf64_obj_exec,
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.l_exec = elf64_obj_exec,
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};
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};
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extern struct file_format multiboot2;
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extern struct file_format multiboot2_obj;
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struct file_format *file_formats[] = {
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struct file_format *file_formats[] = {
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&multiboot2,
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&multiboot2_obj,
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&amd64_elf,
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&amd64_elf,
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&amd64_elf_obj,
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&amd64_elf_obj,
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NULL
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NULL
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567
stand/efi/loader/arch/amd64/multiboot2.c
Normal file
567
stand/efi/loader/arch/amd64/multiboot2.c
Normal file
@ -0,0 +1,567 @@
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/*-
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* Copyright (c) 2021 Roger Pau Monné <royger@FreeBSD.org>
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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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR 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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* This multiboot2 implementation only implements a subset of the full
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* multiboot2 specification in order to be able to boot Xen and a
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* FreeBSD Dom0. Trying to use it to boot other multiboot2 compliant
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* kernels will most surely fail.
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*
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* The full multiboot specification can be found here:
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* https://www.gnu.org/software/grub/manual/multiboot2/multiboot.html
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/exec.h>
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#include <sys/linker.h>
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#include <sys/module.h>
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#include <sys/stdint.h>
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#define _MACHINE_ELF_WANT_32BIT
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#include <machine/elf.h>
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#include <machine/metadata.h>
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#include <string.h>
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#include <stand.h>
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#include <efi.h>
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#include <efilib.h>
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#include "bootstrap.h"
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#include "multiboot2.h"
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#include "loader_efi.h"
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extern int elf32_loadfile_raw(char *filename, uint64_t dest,
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struct preloaded_file **result, int multiboot);
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extern int elf64_load_modmetadata(struct preloaded_file *fp, uint64_t dest);
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extern int elf64_obj_loadfile(char *filename, uint64_t dest,
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struct preloaded_file **result);
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extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp,
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bool exit_bs);
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extern void multiboot2_exec(void *entry, uint64_t multiboot_info,
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uint64_t stack);
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/*
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* Multiboot2 header information to pass between the loading and the exec
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* functions.
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*/
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struct mb2hdr {
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uint32_t efi64_entry;
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};
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static int
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loadfile(char *filename, uint64_t dest, struct preloaded_file **result)
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{
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unsigned int i;
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int error, fd;
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void *header_search = NULL;
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void *multiboot = NULL;
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ssize_t search_size;
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struct multiboot_header *header;
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char *cmdline;
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struct mb2hdr hdr;
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bool keep_bs = false;
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/*
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* Read MULTIBOOT_SEARCH size in order to search for the
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* multiboot magic header.
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*/
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if (filename == NULL)
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return (EFTYPE);
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if ((fd = open(filename, O_RDONLY)) == -1)
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return (errno);
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header_search = malloc(MULTIBOOT_SEARCH);
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if (header_search == NULL) {
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error = ENOMEM;
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goto out;
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}
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search_size = read(fd, header_search, MULTIBOOT_SEARCH);
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for (i = 0; i < search_size; i += MULTIBOOT_HEADER_ALIGN) {
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header = header_search + i;
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if (header->magic == MULTIBOOT2_HEADER_MAGIC)
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break;
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}
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if (i >= MULTIBOOT_SEARCH) {
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error = EFTYPE;
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goto out;
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}
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/* Valid multiboot header has been found, validate checksum */
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if (header->magic + header->architecture + header->header_length +
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header->checksum != 0) {
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printf("Multiboot checksum failed, magic: %#x architecture: %#x"
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"header_length %#x checksum: %#x\n",
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header->magic, header->architecture, header->header_length,
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header->checksum);
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error = EFTYPE;
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goto out;
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}
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if (header->architecture != MULTIBOOT2_ARCHITECTURE_I386) {
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printf("Unsupported architecture: %#x\n",
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header->architecture);
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error = EFTYPE;
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goto out;
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}
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multiboot = malloc(header->header_length - sizeof(*header));
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error = lseek(fd, i + sizeof(*header), SEEK_SET);
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if (error != i + sizeof(*header)) {
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printf("Unable to set file pointer to header location: %d\n",
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error);
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goto out;
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}
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search_size = read(fd, multiboot,
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header->header_length - sizeof(*header));
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bzero(&hdr, sizeof(hdr));
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for (i = 0; i < search_size; ) {
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struct multiboot_header_tag *tag;
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struct multiboot_header_tag_entry_address *entry;
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struct multiboot_header_tag_information_request *req;
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unsigned int j;
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tag = multiboot + i;
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switch(tag->type) {
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case MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST:
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req = (void *)tag;
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for (j = 0;
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j < (tag->size - sizeof(*tag)) / sizeof(uint32_t);
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j++) {
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switch (req->requests[j]) {
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case MULTIBOOT_TAG_TYPE_MMAP:
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case MULTIBOOT_TAG_TYPE_BASIC_MEMINFO:
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/* Only applicable to BIOS. */
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break;
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case MULTIBOOT_TAG_TYPE_EFI_BS:
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case MULTIBOOT_TAG_TYPE_EFI64:
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case MULTIBOOT_TAG_TYPE_EFI64_IH:
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/* Tags unconditionally added. */
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break;
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default:
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if (req->flags &
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MULTIBOOT_HEADER_TAG_OPTIONAL)
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break;
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printf(
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"Unknown non-optional information request %u\n",
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req->requests[j]);
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error = EINVAL;
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goto out;
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}
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}
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break;
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case MULTIBOOT_HEADER_TAG_EFI_BS:
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/* Never shut down BS. */
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keep_bs = true;
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break;
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case MULTIBOOT_HEADER_TAG_MODULE_ALIGN:
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/* We will align modules by default already. */
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case MULTIBOOT_HEADER_TAG_END:
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break;
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case MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64:
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entry = (void *)tag;
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hdr.efi64_entry = entry->entry_addr;
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break;
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default:
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if (tag->flags & MULTIBOOT_HEADER_TAG_OPTIONAL)
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break;
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printf("Unknown header tag %#x not optional\n",
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tag->type);
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error = EINVAL;
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goto out;
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}
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i += roundup2(tag->size, MULTIBOOT_TAG_ALIGN);
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if (tag->type == MULTIBOOT_HEADER_TAG_END)
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break;
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}
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if (hdr.efi64_entry == 0) {
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printf("No EFI64 entry address provided\n");
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error = EINVAL;
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goto out;
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}
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if (!keep_bs) {
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printf("Unable to boot MB2 with BS exited\n");
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error = EINVAL;
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goto out;
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}
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error = elf32_loadfile_raw(filename, dest, result, 1);
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if (error != 0) {
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printf(
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"elf32_loadfile_raw failed: %d unable to load multiboot kernel\n",
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error);
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goto out;
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}
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file_addmetadata(*result, MODINFOMD_NOCOPY | MODINFOMD_MB2HDR,
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sizeof(hdr), &hdr);
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/*
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* f_addr is already aligned to PAGE_SIZE, make sure
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* f_size it's also aligned so when the modules are loaded
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* they are aligned to PAGE_SIZE.
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*/
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(*result)->f_size = roundup((*result)->f_size, PAGE_SIZE);
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out:
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if (header_search != NULL)
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free(header_search);
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if (multiboot != NULL)
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free(multiboot);
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close(fd);
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return (error);
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}
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static unsigned int add_string(void *buf, unsigned int type, const char *str)
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{
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struct multiboot_tag *tag;
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tag = buf;
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tag->type = type;
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tag->size = sizeof(*tag) + strlen(str) + 1;
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strcpy(buf + sizeof(*tag), str);
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return (roundup2(tag->size, MULTIBOOT_TAG_ALIGN));
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}
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static unsigned int add_efi(void *buf)
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{
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struct multiboot_tag *bs;
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struct multiboot_tag_efi64 *efi64;
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struct multiboot_tag_efi64_ih *ih;
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unsigned int len;
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len = 0;
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bs = buf;
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bs->type = MULTIBOOT_TAG_TYPE_EFI_BS;
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bs->size = sizeof(*bs);
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len += roundup2(bs->size, MULTIBOOT_TAG_ALIGN);
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efi64 = buf + len;
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efi64->type = MULTIBOOT_TAG_TYPE_EFI64;
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efi64->size = sizeof(*efi64);
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efi64->pointer = (uintptr_t)ST;
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len += roundup2(efi64->size, MULTIBOOT_TAG_ALIGN);
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ih = buf + len;
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ih->type = MULTIBOOT_TAG_TYPE_EFI64_IH;
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ih->size = sizeof(*ih);
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ih->pointer = (uintptr_t)IH;
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return (len + roundup2(ih->size, MULTIBOOT_TAG_ALIGN));
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}
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static unsigned int add_module(void *buf, vm_offset_t start, vm_offset_t end,
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const char *cmdline)
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{
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struct multiboot_tag_module *mod;
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mod = buf;
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mod->type = MULTIBOOT_TAG_TYPE_MODULE;
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mod->size = sizeof(*mod);
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mod->mod_start = start;
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mod->mod_end = end;
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if (cmdline != NULL)
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{
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strcpy(buf + sizeof(*mod), cmdline);
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mod->size += strlen(cmdline) + 1;
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}
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return (roundup2(mod->size, MULTIBOOT_TAG_ALIGN));
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}
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static unsigned int add_end(void *buf)
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{
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struct multiboot_tag *tag;
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tag = buf;
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tag->type = MULTIBOOT_TAG_TYPE_END;
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tag->size = sizeof(*tag);
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return (roundup2(tag->size, MULTIBOOT_TAG_ALIGN));
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}
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static int
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exec(struct preloaded_file *fp)
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{
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EFI_PHYSICAL_ADDRESS addr = 0;
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EFI_PHYSICAL_ADDRESS stack = 0;
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EFI_STATUS status;
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void *multiboot_space;
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||||||
|
vm_offset_t modulep, kernend, kern_base,
|
||||||
|
payload_base;
|
||||||
|
char *cmdline = NULL;
|
||||||
|
size_t len;
|
||||||
|
int error;
|
||||||
|
uint32_t *total_size;
|
||||||
|
struct file_metadata *md;
|
||||||
|
struct xen_header header;
|
||||||
|
struct mb2hdr *hdr;
|
||||||
|
|
||||||
|
|
||||||
|
CTASSERT(sizeof(header) <= PAGE_SIZE);
|
||||||
|
|
||||||
|
if ((md = file_findmetadata(fp,
|
||||||
|
MODINFOMD_NOCOPY | MODINFOMD_MB2HDR)) == NULL) {
|
||||||
|
printf("Missing Multiboot2 EFI64 entry point\n");
|
||||||
|
return(EFTYPE);
|
||||||
|
}
|
||||||
|
hdr = (void *)&md->md_data;
|
||||||
|
|
||||||
|
status = BS->AllocatePages(AllocateAnyPages, EfiLoaderData,
|
||||||
|
EFI_SIZE_TO_PAGES(PAGE_SIZE), &addr);
|
||||||
|
if (EFI_ERROR(status)) {
|
||||||
|
printf("Failed to allocate pages for multiboot2 header: %lu\n",
|
||||||
|
EFI_ERROR_CODE(status));
|
||||||
|
error = ENOMEM;
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
status = BS->AllocatePages(AllocateAnyPages, EfiLoaderData,
|
||||||
|
EFI_SIZE_TO_PAGES(128 * 1024), &stack);
|
||||||
|
if (EFI_ERROR(status)) {
|
||||||
|
printf("Failed to allocate pages for Xen stack: %lu\n",
|
||||||
|
EFI_ERROR_CODE(status));
|
||||||
|
error = ENOMEM;
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Scratch space to build the multiboot2 header. Reserve the start of
|
||||||
|
* the space to place the header with the size, which we don't know
|
||||||
|
* yet.
|
||||||
|
*/
|
||||||
|
multiboot_space = (void *)(uintptr_t)(addr + sizeof(uint32_t) * 2);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Don't pass the memory size found by the bootloader, the memory
|
||||||
|
* available to Dom0 will be lower than that.
|
||||||
|
*/
|
||||||
|
unsetenv("smbios.memory.enabled");
|
||||||
|
|
||||||
|
/* Set the Xen command line. */
|
||||||
|
if (fp->f_args == NULL) {
|
||||||
|
/* Add the Xen command line if it is set. */
|
||||||
|
cmdline = getenv("xen_cmdline");
|
||||||
|
if (cmdline != NULL) {
|
||||||
|
fp->f_args = strdup(cmdline);
|
||||||
|
if (fp->f_args == NULL) {
|
||||||
|
error = ENOMEM;
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (fp->f_args != NULL) {
|
||||||
|
len = strlen(fp->f_name) + 1 + strlen(fp->f_args) + 1;
|
||||||
|
cmdline = malloc(len);
|
||||||
|
if (cmdline == NULL) {
|
||||||
|
error = ENOMEM;
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
snprintf(cmdline, len, "%s %s", fp->f_name, fp->f_args);
|
||||||
|
multiboot_space += add_string(multiboot_space,
|
||||||
|
MULTIBOOT_TAG_TYPE_CMDLINE, cmdline);
|
||||||
|
free(cmdline);
|
||||||
|
}
|
||||||
|
|
||||||
|
multiboot_space += add_string(multiboot_space,
|
||||||
|
MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME, "FreeBSD Loader");
|
||||||
|
multiboot_space += add_efi(multiboot_space);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Prepare the multiboot module list, Xen assumes the first
|
||||||
|
* module is the Dom0 kernel, and the second one is the initramfs.
|
||||||
|
* This is not optimal for FreeBSD, that doesn't have a initramfs
|
||||||
|
* but instead loads modules dynamically and creates the metadata
|
||||||
|
* info on-the-fly.
|
||||||
|
*
|
||||||
|
* As expected, the first multiboot module is going to be the
|
||||||
|
* FreeBSD kernel loaded as a raw file. The second module is going
|
||||||
|
* to contain the metadata info and the loaded modules.
|
||||||
|
*
|
||||||
|
* There's a small header prefixed in the second module that contains
|
||||||
|
* some information required to calculate the relocated address of
|
||||||
|
* modulep based on the original offset of modulep from the start of
|
||||||
|
* the module address. Note other fields might be added to this header
|
||||||
|
* if required.
|
||||||
|
*
|
||||||
|
* Native layout:
|
||||||
|
* fp->f_addr + fp->f_size
|
||||||
|
* +---------+----------------+------------+
|
||||||
|
* | | | |
|
||||||
|
* | Kernel | Modules | Metadata |
|
||||||
|
* | | | |
|
||||||
|
* +---------+----------------+------------+
|
||||||
|
* fp->f_addr modulep kernend
|
||||||
|
*
|
||||||
|
* Xen dom0 layout:
|
||||||
|
* fp->f_addr fp->f_addr + fp->f_size
|
||||||
|
* +---------+------------+----------------+------------+
|
||||||
|
* | | | | |
|
||||||
|
* | Kernel | xen_header | Modules | Metadata |
|
||||||
|
* | | | | |
|
||||||
|
* +---------+------------+----------------+------------+
|
||||||
|
* modulep kernend
|
||||||
|
* \________/\__________________________________________/
|
||||||
|
* module 0 module 1
|
||||||
|
*/
|
||||||
|
|
||||||
|
fp = file_findfile(NULL, "elf kernel");
|
||||||
|
if (fp == NULL) {
|
||||||
|
printf("No FreeBSD kernel provided, aborting\n");
|
||||||
|
error = EINVAL;
|
||||||
|
goto error;
|
||||||
|
}
|
||||||
|
|
||||||
|
error = bi_load(fp->f_args, &modulep, &kernend, false);
|
||||||
|
if (error != 0)
|
||||||
|
goto error;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Note that the Xen kernel requires to be started with BootServices
|
||||||
|
* enabled, and hence we cannot use efi_copy_finish to relocate the
|
||||||
|
* loaded data from the staging area to the expected loaded addresses.
|
||||||
|
* This is fine because the Xen kernel is relocatable, so it can boot
|
||||||
|
* fine straight from the staging area. We use efi_translate to get the
|
||||||
|
* staging addresses where the kernels and metadata are currently
|
||||||
|
* loaded.
|
||||||
|
*/
|
||||||
|
kern_base = (uintptr_t)efi_translate(fp->f_addr);
|
||||||
|
payload_base = kern_base + fp->f_size - PAGE_SIZE;
|
||||||
|
multiboot_space += add_module(multiboot_space, kern_base, payload_base,
|
||||||
|
NULL);
|
||||||
|
multiboot_space += add_module(multiboot_space, payload_base,
|
||||||
|
(uintptr_t)efi_translate(kernend), "header");
|
||||||
|
|
||||||
|
header.flags = XENHEADER_HAS_MODULEP_OFFSET;
|
||||||
|
header.modulep_offset = modulep - (fp->f_addr + fp->f_size - PAGE_SIZE);
|
||||||
|
archsw.arch_copyin(&header, fp->f_addr + fp->f_size - PAGE_SIZE,
|
||||||
|
sizeof(header));
|
||||||
|
|
||||||
|
multiboot_space += add_end(multiboot_space);
|
||||||
|
total_size = (uint32_t *)(uintptr_t)(addr);
|
||||||
|
*total_size = (uintptr_t)multiboot_space - addr;
|
||||||
|
|
||||||
|
if (*total_size > PAGE_SIZE)
|
||||||
|
panic("Multiboot header exceeds fixed size");
|
||||||
|
|
||||||
|
efi_time_fini();
|
||||||
|
dev_cleanup();
|
||||||
|
multiboot2_exec(efi_translate(hdr->efi64_entry), addr,
|
||||||
|
stack + 128 * 1024);
|
||||||
|
|
||||||
|
panic("exec returned");
|
||||||
|
|
||||||
|
error:
|
||||||
|
if (addr)
|
||||||
|
BS->FreePages(addr, EFI_SIZE_TO_PAGES(PAGE_SIZE));
|
||||||
|
if (stack)
|
||||||
|
BS->FreePages(stack, EFI_SIZE_TO_PAGES(128 * 1024));
|
||||||
|
return (error);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
obj_loadfile(char *filename, uint64_t dest, struct preloaded_file **result)
|
||||||
|
{
|
||||||
|
struct preloaded_file *mfp, *kfp, *rfp;
|
||||||
|
struct kernel_module *kmp;
|
||||||
|
int error;
|
||||||
|
|
||||||
|
/* See if there's a multiboot kernel loaded */
|
||||||
|
mfp = file_findfile(NULL, "elf multiboot kernel");
|
||||||
|
if (mfp == NULL)
|
||||||
|
return (EFTYPE);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* We have a multiboot kernel loaded, see if there's a FreeBSD
|
||||||
|
* kernel loaded also.
|
||||||
|
*/
|
||||||
|
kfp = file_findfile(NULL, "elf kernel");
|
||||||
|
if (kfp == NULL) {
|
||||||
|
/*
|
||||||
|
* No kernel loaded, this must be it. The kernel has to
|
||||||
|
* be loaded as a raw file, it will be processed by
|
||||||
|
* Xen and correctly loaded as an ELF file.
|
||||||
|
*/
|
||||||
|
rfp = file_loadraw(filename, "elf kernel", 0);
|
||||||
|
if (rfp == NULL) {
|
||||||
|
printf(
|
||||||
|
"Unable to load %s as a multiboot payload kernel\n",
|
||||||
|
filename);
|
||||||
|
return (EINVAL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Load kernel metadata... */
|
||||||
|
setenv("kernelname", filename, 1);
|
||||||
|
error = elf64_load_modmetadata(rfp, rfp->f_addr + rfp->f_size);
|
||||||
|
if (error) {
|
||||||
|
printf("Unable to load kernel %s metadata error: %d\n",
|
||||||
|
rfp->f_name, error);
|
||||||
|
return (EINVAL);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Reserve one page at the end of the kernel to place some
|
||||||
|
* metadata in order to cope for Xen relocating the modules and
|
||||||
|
* the metadata information.
|
||||||
|
*/
|
||||||
|
rfp->f_size = roundup(rfp->f_size, PAGE_SIZE);
|
||||||
|
rfp->f_size += PAGE_SIZE;
|
||||||
|
*result = rfp;
|
||||||
|
} else {
|
||||||
|
/* The rest should be loaded as regular modules */
|
||||||
|
error = elf64_obj_loadfile(filename, dest, result);
|
||||||
|
if (error != 0) {
|
||||||
|
printf("Unable to load %s as an object file, error: %d",
|
||||||
|
filename, error);
|
||||||
|
return (error);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return (0);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
obj_exec(struct preloaded_file *fp)
|
||||||
|
{
|
||||||
|
|
||||||
|
return (EFTYPE);
|
||||||
|
}
|
||||||
|
|
||||||
|
struct file_format multiboot2 = { loadfile, exec };
|
||||||
|
struct file_format multiboot2_obj = { obj_loadfile, obj_exec };
|
||||||
416
stand/efi/loader/arch/amd64/multiboot2.h
Normal file
416
stand/efi/loader/arch/amd64/multiboot2.h
Normal file
@ -0,0 +1,416 @@
|
|||||||
|
/* multiboot2.h - Multiboot 2 header file. */
|
||||||
|
/* Copyright (C) 1999,2003,2007,2008,2009,2010 Free Software Foundation, Inc.
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
* of this software and associated documentation files (the "Software"), to
|
||||||
|
* deal in the Software without restriction, including without limitation the
|
||||||
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||||||
|
* sell copies of the Software, and to permit persons to whom the Software is
|
||||||
|
* furnished to do so, subject to the following conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice shall be included in
|
||||||
|
* all copies or substantial portions of the Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL ANY
|
||||||
|
* DEVELOPER OR DISTRIBUTOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||||
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
||||||
|
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef MULTIBOOT_HEADER
|
||||||
|
#define MULTIBOOT_HEADER 1
|
||||||
|
|
||||||
|
/* How many bytes from the start of the file we search for the header. */
|
||||||
|
#define MULTIBOOT_SEARCH 32768
|
||||||
|
#define MULTIBOOT_HEADER_ALIGN 8
|
||||||
|
|
||||||
|
/* The magic field should contain this. */
|
||||||
|
#define MULTIBOOT2_HEADER_MAGIC 0xe85250d6
|
||||||
|
|
||||||
|
/* This should be in %eax. */
|
||||||
|
#define MULTIBOOT2_BOOTLOADER_MAGIC 0x36d76289
|
||||||
|
|
||||||
|
/* Alignment of multiboot modules. */
|
||||||
|
#define MULTIBOOT_MOD_ALIGN 0x00001000
|
||||||
|
|
||||||
|
/* Alignment of the multiboot info structure. */
|
||||||
|
#define MULTIBOOT_INFO_ALIGN 0x00000008
|
||||||
|
|
||||||
|
/* Flags set in the 'flags' member of the multiboot header. */
|
||||||
|
|
||||||
|
#define MULTIBOOT_TAG_ALIGN 8
|
||||||
|
#define MULTIBOOT_TAG_TYPE_END 0
|
||||||
|
#define MULTIBOOT_TAG_TYPE_CMDLINE 1
|
||||||
|
#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2
|
||||||
|
#define MULTIBOOT_TAG_TYPE_MODULE 3
|
||||||
|
#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4
|
||||||
|
#define MULTIBOOT_TAG_TYPE_BOOTDEV 5
|
||||||
|
#define MULTIBOOT_TAG_TYPE_MMAP 6
|
||||||
|
#define MULTIBOOT_TAG_TYPE_VBE 7
|
||||||
|
#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8
|
||||||
|
#define MULTIBOOT_TAG_TYPE_ELF_SECTIONS 9
|
||||||
|
#define MULTIBOOT_TAG_TYPE_APM 10
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI32 11
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI64 12
|
||||||
|
#define MULTIBOOT_TAG_TYPE_SMBIOS 13
|
||||||
|
#define MULTIBOOT_TAG_TYPE_ACPI_OLD 14
|
||||||
|
#define MULTIBOOT_TAG_TYPE_ACPI_NEW 15
|
||||||
|
#define MULTIBOOT_TAG_TYPE_NETWORK 16
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI_MMAP 17
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI_BS 18
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI32_IH 19
|
||||||
|
#define MULTIBOOT_TAG_TYPE_EFI64_IH 20
|
||||||
|
#define MULTIBOOT_TAG_TYPE_LOAD_BASE_ADDR 21
|
||||||
|
|
||||||
|
#define MULTIBOOT_HEADER_TAG_END 0
|
||||||
|
#define MULTIBOOT_HEADER_TAG_INFORMATION_REQUEST 1
|
||||||
|
#define MULTIBOOT_HEADER_TAG_ADDRESS 2
|
||||||
|
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS 3
|
||||||
|
#define MULTIBOOT_HEADER_TAG_CONSOLE_FLAGS 4
|
||||||
|
#define MULTIBOOT_HEADER_TAG_FRAMEBUFFER 5
|
||||||
|
#define MULTIBOOT_HEADER_TAG_MODULE_ALIGN 6
|
||||||
|
#define MULTIBOOT_HEADER_TAG_EFI_BS 7
|
||||||
|
#define MULTIBOOT_HEADER_TAG_ENTRY_ADDRESS_EFI64 9
|
||||||
|
#define MULTIBOOT_HEADER_TAG_RELOCATABLE 10
|
||||||
|
|
||||||
|
#define MULTIBOOT2_ARCHITECTURE_I386 0
|
||||||
|
#define MULTIBOOT2_ARCHITECTURE_MIPS32 4
|
||||||
|
#define MULTIBOOT_HEADER_TAG_OPTIONAL 1
|
||||||
|
|
||||||
|
#define MULTIBOOT_LOAD_PREFERENCE_NONE 0
|
||||||
|
#define MULTIBOOT_LOAD_PREFERENCE_LOW 1
|
||||||
|
#define MULTIBOOT_LOAD_PREFERENCE_HIGH 2
|
||||||
|
|
||||||
|
#define MULTIBOOT_CONSOLE_FLAGS_CONSOLE_REQUIRED 1
|
||||||
|
#define MULTIBOOT_CONSOLE_FLAGS_EGA_TEXT_SUPPORTED 2
|
||||||
|
|
||||||
|
#ifndef ASM_FILE
|
||||||
|
|
||||||
|
typedef unsigned char multiboot_uint8_t;
|
||||||
|
typedef unsigned short multiboot_uint16_t;
|
||||||
|
typedef unsigned int multiboot_uint32_t;
|
||||||
|
typedef unsigned long long multiboot_uint64_t;
|
||||||
|
|
||||||
|
struct multiboot_header
|
||||||
|
{
|
||||||
|
/* Must be MULTIBOOT_MAGIC - see above. */
|
||||||
|
multiboot_uint32_t magic;
|
||||||
|
|
||||||
|
/* ISA */
|
||||||
|
multiboot_uint32_t architecture;
|
||||||
|
|
||||||
|
/* Total header length. */
|
||||||
|
multiboot_uint32_t header_length;
|
||||||
|
|
||||||
|
/* The above fields plus this one must equal 0 mod 2^32. */
|
||||||
|
multiboot_uint32_t checksum;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_information_request
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t requests[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_address
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t header_addr;
|
||||||
|
multiboot_uint32_t load_addr;
|
||||||
|
multiboot_uint32_t load_end_addr;
|
||||||
|
multiboot_uint32_t bss_end_addr;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_entry_address
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t entry_addr;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_console_flags
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t console_flags;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_framebuffer
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t width;
|
||||||
|
multiboot_uint32_t height;
|
||||||
|
multiboot_uint32_t depth;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_module_align
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_header_tag_relocatable
|
||||||
|
{
|
||||||
|
multiboot_uint16_t type;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t min_addr;
|
||||||
|
multiboot_uint32_t max_addr;
|
||||||
|
multiboot_uint32_t align;
|
||||||
|
multiboot_uint32_t preference;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_color
|
||||||
|
{
|
||||||
|
multiboot_uint8_t red;
|
||||||
|
multiboot_uint8_t green;
|
||||||
|
multiboot_uint8_t blue;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_mmap_entry
|
||||||
|
{
|
||||||
|
multiboot_uint64_t addr;
|
||||||
|
multiboot_uint64_t len;
|
||||||
|
#define MULTIBOOT_MEMORY_AVAILABLE 1
|
||||||
|
#define MULTIBOOT_MEMORY_RESERVED 2
|
||||||
|
#define MULTIBOOT_MEMORY_ACPI_RECLAIMABLE 3
|
||||||
|
#define MULTIBOOT_MEMORY_NVS 4
|
||||||
|
#define MULTIBOOT_MEMORY_BADRAM 5
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t zero;
|
||||||
|
};
|
||||||
|
typedef struct multiboot_mmap_entry multiboot_memory_map_t;
|
||||||
|
|
||||||
|
struct multiboot_tag
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_string
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
char string[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_module
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t mod_start;
|
||||||
|
multiboot_uint32_t mod_end;
|
||||||
|
char cmdline[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_basic_meminfo
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t mem_lower;
|
||||||
|
multiboot_uint32_t mem_upper;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_bootdev
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t biosdev;
|
||||||
|
multiboot_uint32_t slice;
|
||||||
|
multiboot_uint32_t part;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_mmap
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t entry_size;
|
||||||
|
multiboot_uint32_t entry_version;
|
||||||
|
struct multiboot_mmap_entry entries[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_vbe_info_block
|
||||||
|
{
|
||||||
|
multiboot_uint8_t external_specification[512];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_vbe_mode_info_block
|
||||||
|
{
|
||||||
|
multiboot_uint8_t external_specification[256];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_vbe
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
|
||||||
|
multiboot_uint16_t vbe_mode;
|
||||||
|
multiboot_uint16_t vbe_interface_seg;
|
||||||
|
multiboot_uint16_t vbe_interface_off;
|
||||||
|
multiboot_uint16_t vbe_interface_len;
|
||||||
|
|
||||||
|
struct multiboot_vbe_info_block vbe_control_info;
|
||||||
|
struct multiboot_vbe_mode_info_block vbe_mode_info;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_framebuffer_common
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
|
||||||
|
multiboot_uint64_t framebuffer_addr;
|
||||||
|
multiboot_uint32_t framebuffer_pitch;
|
||||||
|
multiboot_uint32_t framebuffer_width;
|
||||||
|
multiboot_uint32_t framebuffer_height;
|
||||||
|
multiboot_uint8_t framebuffer_bpp;
|
||||||
|
#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0
|
||||||
|
#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1
|
||||||
|
#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2
|
||||||
|
multiboot_uint8_t framebuffer_type;
|
||||||
|
multiboot_uint16_t reserved;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_framebuffer
|
||||||
|
{
|
||||||
|
struct multiboot_tag_framebuffer_common common;
|
||||||
|
|
||||||
|
union
|
||||||
|
{
|
||||||
|
struct
|
||||||
|
{
|
||||||
|
multiboot_uint16_t framebuffer_palette_num_colors;
|
||||||
|
struct multiboot_color framebuffer_palette[0];
|
||||||
|
};
|
||||||
|
struct
|
||||||
|
{
|
||||||
|
multiboot_uint8_t framebuffer_red_field_position;
|
||||||
|
multiboot_uint8_t framebuffer_red_mask_size;
|
||||||
|
multiboot_uint8_t framebuffer_green_field_position;
|
||||||
|
multiboot_uint8_t framebuffer_green_mask_size;
|
||||||
|
multiboot_uint8_t framebuffer_blue_field_position;
|
||||||
|
multiboot_uint8_t framebuffer_blue_mask_size;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_elf_sections
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t num;
|
||||||
|
multiboot_uint32_t entsize;
|
||||||
|
multiboot_uint32_t shndx;
|
||||||
|
char sections[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_apm
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint16_t version;
|
||||||
|
multiboot_uint16_t cseg;
|
||||||
|
multiboot_uint32_t offset;
|
||||||
|
multiboot_uint16_t cseg_16;
|
||||||
|
multiboot_uint16_t dseg;
|
||||||
|
multiboot_uint16_t flags;
|
||||||
|
multiboot_uint16_t cseg_len;
|
||||||
|
multiboot_uint16_t cseg_16_len;
|
||||||
|
multiboot_uint16_t dseg_len;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_efi32
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t pointer;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_efi64
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint64_t pointer;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_smbios
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint8_t major;
|
||||||
|
multiboot_uint8_t minor;
|
||||||
|
multiboot_uint8_t reserved[6];
|
||||||
|
multiboot_uint8_t tables[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_old_acpi
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint8_t rsdp[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_new_acpi
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint8_t rsdp[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_network
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint8_t dhcpack[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_efi_mmap
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t descr_size;
|
||||||
|
multiboot_uint32_t descr_vers;
|
||||||
|
multiboot_uint8_t efi_mmap[0];
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_efi32_ih
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t pointer;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_efi64_ih
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint64_t pointer;
|
||||||
|
};
|
||||||
|
|
||||||
|
struct multiboot_tag_load_base_addr
|
||||||
|
{
|
||||||
|
multiboot_uint32_t type;
|
||||||
|
multiboot_uint32_t size;
|
||||||
|
multiboot_uint32_t load_base_addr;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /* ! ASM_FILE */
|
||||||
|
|
||||||
|
#endif /* ! MULTIBOOT_HEADER */
|
||||||
@ -215,6 +215,7 @@ void *linker_hwpmc_list_objects(void);
|
|||||||
#define MODINFOMD_SSYM 0x0003 /* start of symbols */
|
#define MODINFOMD_SSYM 0x0003 /* start of symbols */
|
||||||
#define MODINFOMD_ESYM 0x0004 /* end of symbols */
|
#define MODINFOMD_ESYM 0x0004 /* end of symbols */
|
||||||
#define MODINFOMD_DYNAMIC 0x0005 /* _DYNAMIC pointer */
|
#define MODINFOMD_DYNAMIC 0x0005 /* _DYNAMIC pointer */
|
||||||
|
#define MODINFOMD_MB2HDR 0x0006 /* MB2 header info */
|
||||||
/* These values are MD on PowerPC */
|
/* These values are MD on PowerPC */
|
||||||
#if !defined(__powerpc__)
|
#if !defined(__powerpc__)
|
||||||
#define MODINFOMD_ENVP 0x0006 /* envp[] */
|
#define MODINFOMD_ENVP 0x0006 /* envp[] */
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user