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2 * Copyright (c) 2008 Apple Inc. All rights reserved.
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7 * as defined in and that are subject to the Apple Public Source License
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9 * compliance with the License. The rights granted to you under the License
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11 * unlawful or unlicensed copies of an Apple operating system, or to
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16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
18 * The Original Code and all software distributed under the License are
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20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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28 #include <i386/pmap.h>
29 #include <i386/proc_reg.h>
30 #include <IOKit/IOHibernatePrivate.h>
32 #include <i386/pal_hibernate.h>
34 extern pd_entry_t BootPTD
[2048];
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
41 hibernate_restore_phys_page(uint64_t src
, uint64_t dst
, uint32_t len
, uint32_t procFlags
)
48 return (uintptr_t)dst
;
51 d
= (uint64_t *)pal_hib_map(DEST_COPY_AREA
, dst
);
52 s
= (uint64_t *) (uintptr_t)src
;
54 __nosan_memcpy(d
, s
, len
);
60 void hibprintf(const char *fmt
, ...);
63 pal_hib_map(uintptr_t virt
, uint64_t phys
)
80 if (phys
< IMAGE2_AREA
) {
81 // first 4Gb is all mapped,
82 // and do not expect source areas to cross 4Gb
85 index
= (virt
>> I386_LPGSHIFT
);
86 virt
+= (uintptr_t)(phys
& I386_LPGMASK
);
87 phys
= ((phys
& ~((uint64_t)I386_LPGMASK
)) | INTEL_PTE_PS
| INTEL_PTE_VALID
| INTEL_PTE_WRITE
);
88 if (phys
== BootPTD
[index
]) {
91 BootPTD
[index
] = phys
;
93 BootPTD
[index
+ 1] = (phys
+ I386_LPGBYTES
);
94 invlpg(virt
+ I386_LPGBYTES
);
100 hibernateRestorePALState(uint32_t *arg
)
106 pal_hib_patchup(void)