1206376Srpaulo/*- 2206376Srpaulo * Copyright (c) 2004, 2006 Marcel Moolenaar 3206376Srpaulo * All rights reserved. 4206376Srpaulo * 5206376Srpaulo * Redistribution and use in source and binary forms, with or without 6206376Srpaulo * modification, are permitted provided that the following conditions 7206376Srpaulo * are met: 8206376Srpaulo * 9206376Srpaulo * 1. Redistributions of source code must retain the above copyright 10206376Srpaulo * notice, this list of conditions and the following disclaimer. 11206376Srpaulo * 2. Redistributions in binary form must reproduce the above copyright 12206376Srpaulo * notice, this list of conditions and the following disclaimer in the 13206376Srpaulo * documentation and/or other materials provided with the distribution. 14206376Srpaulo * 15206376Srpaulo * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16206376Srpaulo * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17206376Srpaulo * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18206376Srpaulo * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19206376Srpaulo * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20206376Srpaulo * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21206376Srpaulo * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22206376Srpaulo * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23206376Srpaulo * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24206376Srpaulo * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25206376Srpaulo */ 26206376Srpaulo 27206376Srpaulo#include <sys/cdefs.h> 28206376Srpaulo__FBSDID("$FreeBSD$"); 29206376Srpaulo 30206376Srpaulo#include <stand.h> 31206376Srpaulo 32206376Srpaulo#include <efi.h> 33206376Srpaulo#include <efilib.h> 34206376Srpaulo 35206376Srpaulo#include <libi386.h> 36206376Srpaulo#include <machine/bootinfo.h> 37206376Srpaulo 38206376Srpaulo#define EFI_INTEL_FPSWA \ 39206376Srpaulo {0xc41b6531,0x97b9,0x11d3,{0x9a,0x29,0x00,0x90,0x27,0x3f,0xc1,0x4d}} 40206376Srpaulo 41206376Srpaulostatic EFI_GUID fpswa_guid = EFI_INTEL_FPSWA; 42206376Srpaulo 43206376Srpaulo/* DIG64 Headless Console & Debug Port Table. */ 44206376Srpaulo#define HCDP_TABLE_GUID \ 45206376Srpaulo {0xf951938d,0x620b,0x42ef,{0x82,0x79,0xa8,0x4b,0x79,0x61,0x78,0x98}} 46206376Srpaulo 47206376Srpaulostatic EFI_GUID hcdp_guid = HCDP_TABLE_GUID; 48206376Srpaulo 49206376Srpaulostatic UINTN mapkey; 50206376Srpaulo 51206376Srpaulouint64_t 52206376Srpauloldr_alloc(vm_offset_t va) 53206376Srpaulo{ 54206376Srpaulo 55206376Srpaulo return (0); 56206376Srpaulo} 57206376Srpaulo 58206376Srpauloint 59206376Srpauloldr_bootinfo(struct bootinfo *bi, uint64_t *bi_addr) 60206376Srpaulo{ 61206376Srpaulo VOID *fpswa; 62206376Srpaulo EFI_MEMORY_DESCRIPTOR *mm; 63206376Srpaulo EFI_PHYSICAL_ADDRESS addr; 64206376Srpaulo EFI_HANDLE handle; 65206376Srpaulo EFI_STATUS status; 66206376Srpaulo size_t bisz; 67206376Srpaulo UINTN mmsz, pages, sz; 68206376Srpaulo UINT32 mmver; 69206376Srpaulo 70206376Srpaulo bi->bi_systab = (uint64_t)ST; 71206376Srpaulo bi->bi_hcdp = (uint64_t)efi_get_table(&hcdp_guid); 72206376Srpaulo 73206376Srpaulo sz = sizeof(EFI_HANDLE); 74206376Srpaulo status = BS->LocateHandle(ByProtocol, &fpswa_guid, 0, &sz, &handle); 75206376Srpaulo if (status == 0) 76206376Srpaulo status = BS->HandleProtocol(handle, &fpswa_guid, &fpswa); 77206376Srpaulo bi->bi_fpswa = (status == 0) ? (uint64_t)fpswa : 0; 78206376Srpaulo 79206376Srpaulo bisz = (sizeof(struct bootinfo) + 0x0f) & ~0x0f; 80206376Srpaulo 81206376Srpaulo /* 82206376Srpaulo * Allocate enough pages to hold the bootinfo block and the memory 83206376Srpaulo * map EFI will return to us. The memory map has an unknown size, 84206376Srpaulo * so we have to determine that first. Note that the AllocatePages 85206376Srpaulo * call can itself modify the memory map, so we have to take that 86206376Srpaulo * into account as well. The changes to the memory map are caused 87206376Srpaulo * by splitting a range of free memory into two (AFAICT), so that 88206376Srpaulo * one is marked as being loader data. 89206376Srpaulo */ 90206376Srpaulo sz = 0; 91206376Srpaulo BS->GetMemoryMap(&sz, NULL, &mapkey, &mmsz, &mmver); 92206376Srpaulo sz += mmsz; 93206376Srpaulo sz = (sz + 15) & ~15; 94206376Srpaulo pages = EFI_SIZE_TO_PAGES(sz + bisz); 95206376Srpaulo status = BS->AllocatePages(AllocateAnyPages, EfiLoaderData, pages, 96206376Srpaulo &addr); 97206376Srpaulo if (EFI_ERROR(status)) { 98206376Srpaulo printf("%s: AllocatePages() returned 0x%lx\n", __func__, 99206376Srpaulo (long)status); 100206376Srpaulo return (ENOMEM); 101206376Srpaulo } 102206376Srpaulo 103206376Srpaulo /* 104206376Srpaulo * Read the memory map and stash it after bootinfo. Align the 105206376Srpaulo * memory map on a 16-byte boundary (the bootinfo block is page 106206376Srpaulo * aligned). 107206376Srpaulo */ 108206376Srpaulo *bi_addr = addr; 109206376Srpaulo mm = (void *)(addr + bisz); 110206376Srpaulo sz = (EFI_PAGE_SIZE * pages) - bisz; 111206376Srpaulo status = BS->GetMemoryMap(&sz, mm, &mapkey, &mmsz, &mmver); 112206376Srpaulo if (EFI_ERROR(status)) { 113206376Srpaulo printf("%s: GetMemoryMap() returned 0x%lx\n", __func__, 114206376Srpaulo (long)status); 115206376Srpaulo return (EINVAL); 116206376Srpaulo } 117206376Srpaulo bi->bi_memmap = (uint64_t)mm; 118206376Srpaulo bi->bi_memmap_size = sz; 119206376Srpaulo bi->bi_memdesc_size = mmsz; 120206376Srpaulo bi->bi_memdesc_version = mmver; 121206376Srpaulo 122206376Srpaulo bcopy(bi, (void *)(*bi_addr), sizeof(*bi)); 123206376Srpaulo return (0); 124206376Srpaulo} 125206376Srpaulo 126206376Srpauloint 127206376Srpauloldr_enter(const char *kernel) 128206376Srpaulo{ 129206376Srpaulo EFI_STATUS status; 130206376Srpaulo 131206376Srpaulo status = BS->ExitBootServices(IH, mapkey); 132206376Srpaulo if (EFI_ERROR(status)) { 133206376Srpaulo printf("%s: ExitBootServices() returned 0x%lx\n", __func__, 134206376Srpaulo (long)status); 135206376Srpaulo return (EINVAL); 136206376Srpaulo } 137206376Srpaulo 138206376Srpaulo return (0); 139206376Srpaulo} 140