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ed87efbe24
Xen requires that UEFI BootServices are enabled in order to boot, so introduce a new parameter to bi_load in order to select whether BS should be exited. No functional change introduced in this patch, as all current users of bi_load request BS to be exited. Further changes will make use of this functionality. Note the memory map is still appended to the kernel metadata, even when it could be modified by further calls to the Boot Services, as it will be used to detect if the kernel has been booted from UEFI. Sponsored by: Citrix Systems R&D Reviewed by: tsoome, imp Differential revision: https://reviews.freebsd.org/D28495
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*-
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* Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
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* Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <machine/md_var.h>
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#include <machine/metadata.h>
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#include <machine/elf.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 "loader_efi.h"
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extern vm_offset_t md_load(char *, vm_offset_t *);
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extern int bi_load(char *, vm_offset_t *, vm_offset_t *, bool);
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static int
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__elfN(arm_load)(char *filename, uint64_t dest,
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struct preloaded_file **result)
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{
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int r;
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r = __elfN(loadfile)(filename, dest, result);
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if (r != 0)
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return (r);
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return (0);
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}
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static int
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__elfN(arm_exec)(struct preloaded_file *fp)
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{
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struct file_metadata *fmp;
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vm_offset_t modulep, kernend;
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Elf_Ehdr *e;
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int error;
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void (*entry)(void *);
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if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
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return (EFTYPE);
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e = (Elf_Ehdr *)&fmp->md_data;
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efi_time_fini();
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entry = efi_translate(e->e_entry);
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printf("Kernel entry at %p...\n", entry);
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printf("Kernel args: %s\n", fp->f_args);
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if ((error = bi_load(fp->f_args, &modulep, &kernend, true)) != 0) {
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efi_time_init();
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return (error);
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}
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/* At this point we've called ExitBootServices, so we can't call
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* printf or any other function that uses Boot Services */
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dev_cleanup();
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(*entry)((void *)modulep);
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panic("exec returned");
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}
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static struct file_format arm_elf = {
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__elfN(arm_load),
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__elfN(arm_exec)
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};
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struct file_format *file_formats[] = {
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&arm_elf,
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NULL
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};
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