d15667174d
code uses the GetTime function from the Runtime Service, however this has been shown to not return a useable time on many arm64 UEFI implementations. Reviewed by: jhb, smh Sponsored by: ABT Systems Ltd Differential Revision: https://reviews.freebsd.org/D6709
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/*-
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* Copyright (c) 2006 Marcel Moolenaar
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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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*
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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 <stand.h>
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#include <string.h>
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#include <sys/param.h>
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#include <sys/linker.h>
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#include <machine/elf.h>
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#include <bootstrap.h>
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#include <efi.h>
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#include <efilib.h>
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#include "loader_efi.h"
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#include "cache.h"
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#include "platform/acfreebsd.h"
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#include "acconfig.h"
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#define ACPI_SYSTEM_XFACE
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#define ACPI_USE_SYSTEM_INTTYPES
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#include "actypes.h"
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#include "actbl.h"
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static EFI_GUID acpi_guid = ACPI_TABLE_GUID;
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static EFI_GUID acpi20_guid = ACPI_20_TABLE_GUID;
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static int elf64_exec(struct preloaded_file *amp);
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static int elf64_obj_exec(struct preloaded_file *amp);
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int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp);
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static struct file_format arm64_elf = {
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elf64_loadfile,
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elf64_exec
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};
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struct file_format *file_formats[] = {
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&arm64_elf,
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NULL
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};
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static int
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elf64_exec(struct preloaded_file *fp)
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{
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vm_offset_t modulep, kernendp;
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vm_offset_t clean_addr;
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size_t clean_size;
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struct file_metadata *md;
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ACPI_TABLE_RSDP *rsdp;
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Elf_Ehdr *ehdr;
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char buf[24];
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int err, revision;
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void (*entry)(vm_offset_t);
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rsdp = efi_get_table(&acpi20_guid);
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if (rsdp == NULL) {
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rsdp = efi_get_table(&acpi_guid);
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}
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if (rsdp != NULL) {
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sprintf(buf, "0x%016llx", (unsigned long long)rsdp);
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setenv("hint.acpi.0.rsdp", buf, 1);
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revision = rsdp->Revision;
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if (revision == 0)
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revision = 1;
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sprintf(buf, "%d", revision);
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setenv("hint.acpi.0.revision", buf, 1);
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strncpy(buf, rsdp->OemId, sizeof(rsdp->OemId));
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buf[sizeof(rsdp->OemId)] = '\0';
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setenv("hint.acpi.0.oem", buf, 1);
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sprintf(buf, "0x%016x", rsdp->RsdtPhysicalAddress);
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setenv("hint.acpi.0.rsdt", buf, 1);
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if (revision >= 2) {
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/* XXX extended checksum? */
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sprintf(buf, "0x%016llx",
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(unsigned long long)rsdp->XsdtPhysicalAddress);
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setenv("hint.acpi.0.xsdt", buf, 1);
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sprintf(buf, "%d", rsdp->Length);
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setenv("hint.acpi.0.xsdt_length", buf, 1);
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}
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}
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if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
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return(EFTYPE);
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ehdr = (Elf_Ehdr *)&(md->md_data);
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entry = efi_translate(ehdr->e_entry);
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efi_time_fini();
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err = bi_load(fp->f_args, &modulep, &kernendp);
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if (err != 0) {
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efi_time_init();
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return (err);
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}
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dev_cleanup();
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/* Clean D-cache under kernel area and invalidate whole I-cache */
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clean_addr = (vm_offset_t)efi_translate(fp->f_addr);
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clean_size = (vm_offset_t)efi_translate(kernendp) - clean_addr;
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cpu_flush_dcache((void *)clean_addr, clean_size);
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cpu_inval_icache(NULL, 0);
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(*entry)(modulep);
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panic("exec returned");
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}
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static int
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elf64_obj_exec(struct preloaded_file *fp)
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{
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printf("%s called for preloaded file %p (=%s):\n", __func__, fp,
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fp->f_name);
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return (ENOSYS);
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}
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