1 /* $NetBSD: efibootx64.c,v 1.4 2018/03/27 14:15:05 nonaka Exp $ */ 2 3 /*- 4 * Copyright (c) 2016 Kimihiro Nonaka <nonaka@netbsd.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "efiboot.h" 30 31 #include <sys/bootblock.h> 32 33 void startprog64_start(physaddr_t, physaddr_t, physaddr_t, u_long, 34 void *, physaddr_t); 35 extern void (*startprog64)(physaddr_t, physaddr_t, physaddr_t, u_long, 36 void *, physaddr_t); 37 extern u_int startprog64_size; 38 39 void 40 efi_md_init(void) 41 { 42 EFI_STATUS status; 43 EFI_PHYSICAL_ADDRESS addr = EFI_ALLOCATE_MAX_ADDRESS; 44 u_int sz = EFI_SIZE_TO_PAGES(startprog64_size); 45 46 status = uefi_call_wrapper(BS->AllocatePages, 4, AllocateMaxAddress, 47 EfiLoaderData, sz, &addr); 48 if (EFI_ERROR(status)) 49 panic("%s: AllocatePages() failed: %d page(s): %" PRIxMAX, 50 __func__, sz, (uintmax_t)status); 51 startprog64 = (void *)addr; 52 CopyMem(startprog64, startprog64_start, startprog64_size); 53 } 54 55 /* ARGSUSED */ 56 void 57 startprog(physaddr_t entry, uint32_t argc, uint32_t *argv, physaddr_t sp) 58 { 59 uint32_t *newsp = (void *)((char *)startprog64 + startprog64_size); 60 61 /* Copy argv to new stack pointer */ 62 if (argc > 0) { 63 newsp -= argc; 64 memcpy(newsp, argv, sizeof(*argv) * argc); 65 } 66 67 (*startprog64)(efi_kernel_start, efi_kernel_start + efi_loadaddr, 68 (physaddr_t)newsp, efi_kernel_size, startprog64, entry); 69 } 70 71 /* ARGSUSED */ 72 void 73 multiboot(physaddr_t entry, physaddr_t header, physaddr_t sp) 74 { 75 panic("%s: not implemented", __func__); 76 } 77