1/* 2 * Copyright (c) 2008 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28#include <i386/pmap.h> 29#include <i386/proc_reg.h> 30#include <IOKit/IOHibernatePrivate.h> 31 32#include <i386/pal_hibernate.h> 33 34extern pd_entry_t BootPTD[2048]; 35 36// src is virtually mapped, not page aligned, 37// dst is a physical 4k page aligned ptr, len is one 4K page 38// src & dst will not overlap 39 40uintptr_t 41hibernate_restore_phys_page(uint64_t src, uint64_t dst, uint32_t len, uint32_t procFlags) 42{ 43 (void)procFlags; 44 uint64_t * d; 45 uint64_t * s; 46 uint32_t idx; 47 48 if (src == 0) 49 return (uintptr_t)dst; 50 51 d = (uint64_t *)pal_hib_map(DEST_COPY_AREA, dst); 52 s = (uint64_t *) (uintptr_t)src; 53 54 for (idx = 0; idx < (len / (uint32_t)sizeof(uint64_t)); idx++) 55 d[idx] = s[idx]; 56 57 return (uintptr_t)d; 58} 59#undef hibprintf 60 61void hibprintf(const char *fmt, ...); 62 63uintptr_t 64pal_hib_map(uintptr_t virt, uint64_t phys) 65{ 66 uintptr_t index; 67 68 switch (virt) 69 { 70 case DEST_COPY_AREA: 71 case SRC_COPY_AREA: 72 case COPY_PAGE_AREA: 73 case BITMAP_AREA: 74 case IMAGE_AREA: 75 case IMAGE2_AREA: 76 break; 77 default: 78 asm("cli;hlt;"); 79 break; 80 } 81 82 index = (virt >> I386_LPGSHIFT); 83 virt += (uintptr_t)(phys & I386_LPGMASK); 84 phys = ((phys & ~((uint64_t)I386_LPGMASK)) | INTEL_PTE_PS | INTEL_PTE_VALID | INTEL_PTE_WRITE); 85 if (phys == BootPTD[index]) return (virt); 86 BootPTD[index] = phys; 87 invlpg(virt); 88 BootPTD[index + 1] = (phys + I386_LPGBYTES); 89 invlpg(virt + I386_LPGBYTES); 90 91 return (virt); 92} 93 94void hibernateRestorePALState(uint32_t *arg) 95{ 96 (void)arg; 97} 98 99void 100pal_hib_patchup(void) 101{ 102} 103