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25ae9c1d WC |
1 | /* |
2 | * QEMU dump | |
3 | * | |
4 | * Copyright Fujitsu, Corp. 2011, 2012 | |
5 | * | |
6 | * Authors: | |
7 | * Wen Congyang <wency@cn.fujitsu.com> | |
8 | * | |
352666e2 SW |
9 | * This work is licensed under the terms of the GNU GPL, version 2 or later. |
10 | * See the COPYING file in the top-level directory. | |
25ae9c1d WC |
11 | * |
12 | */ | |
13 | ||
14 | #ifndef DUMP_H | |
15 | #define DUMP_H | |
16 | ||
fda05387 QN |
17 | #define MAKEDUMPFILE_SIGNATURE "makedumpfile" |
18 | #define MAX_SIZE_MDF_HEADER (4096) /* max size of makedumpfile_header */ | |
19 | #define TYPE_FLAT_HEADER (1) /* type of flattened format */ | |
20 | #define VERSION_FLAT_HEADER (1) /* version of flattened format */ | |
21 | #define END_FLAG_FLAT_HEADER (-1) | |
22 | ||
8161befd | 23 | #ifndef ARCH_PFN_OFFSET |
7aad248d | 24 | #define ARCH_PFN_OFFSET (0) |
8161befd | 25 | #endif |
7aad248d | 26 | |
298f1168 QN |
27 | /* |
28 | * flag for compressed format | |
29 | */ | |
30 | #define DUMP_DH_COMPRESSED_ZLIB (0x1) | |
31 | #define DUMP_DH_COMPRESSED_LZO (0x2) | |
32 | #define DUMP_DH_COMPRESSED_SNAPPY (0x4) | |
33 | ||
34 | #define KDUMP_SIGNATURE "KDUMP " | |
35 | #define SIG_LEN (sizeof(KDUMP_SIGNATURE) - 1) | |
298f1168 QN |
36 | #define DUMP_LEVEL (1) |
37 | #define DISKDUMP_HEADER_BLOCKS (1) | |
38 | ||
acb0ef58 BR |
39 | #include "sysemu/dump-arch.h" |
40 | #include "sysemu/memory_mapping.h" | |
baf28f57 | 41 | #include "qapi-types.h" |
25ae9c1d | 42 | |
fda05387 QN |
43 | typedef struct QEMU_PACKED MakedumpfileHeader { |
44 | char signature[16]; /* = "makedumpfile" */ | |
45 | int64_t type; | |
46 | int64_t version; | |
47 | } MakedumpfileHeader; | |
48 | ||
49 | typedef struct QEMU_PACKED MakedumpfileDataHeader { | |
50 | int64_t offset; | |
51 | int64_t buf_size; | |
52 | } MakedumpfileDataHeader; | |
53 | ||
298f1168 QN |
54 | typedef struct QEMU_PACKED NewUtsname { |
55 | char sysname[65]; | |
56 | char nodename[65]; | |
57 | char release[65]; | |
58 | char version[65]; | |
59 | char machine[65]; | |
60 | char domainname[65]; | |
61 | } NewUtsname; | |
62 | ||
63 | typedef struct QEMU_PACKED DiskDumpHeader32 { | |
64 | char signature[SIG_LEN]; /* = "KDUMP " */ | |
65 | uint32_t header_version; /* Dump header version */ | |
66 | NewUtsname utsname; /* copy of system_utsname */ | |
67 | char timestamp[10]; /* Time stamp */ | |
68 | uint32_t status; /* Above flags */ | |
69 | uint32_t block_size; /* Size of a block in byte */ | |
70 | uint32_t sub_hdr_size; /* Size of arch dependent header in block */ | |
71 | uint32_t bitmap_blocks; /* Size of Memory bitmap in block */ | |
72 | uint32_t max_mapnr; /* = max_mapnr , | |
73 | obsoleted in header_version 6 */ | |
74 | uint32_t total_ram_blocks; /* Number of blocks should be written */ | |
75 | uint32_t device_blocks; /* Number of total blocks in dump device */ | |
76 | uint32_t written_blocks; /* Number of written blocks */ | |
77 | uint32_t current_cpu; /* CPU# which handles dump */ | |
78 | uint32_t nr_cpus; /* Number of CPUs */ | |
79 | } DiskDumpHeader32; | |
80 | ||
81 | typedef struct QEMU_PACKED DiskDumpHeader64 { | |
82 | char signature[SIG_LEN]; /* = "KDUMP " */ | |
83 | uint32_t header_version; /* Dump header version */ | |
84 | NewUtsname utsname; /* copy of system_utsname */ | |
85 | char timestamp[22]; /* Time stamp */ | |
86 | uint32_t status; /* Above flags */ | |
87 | uint32_t block_size; /* Size of a block in byte */ | |
88 | uint32_t sub_hdr_size; /* Size of arch dependent header in block */ | |
89 | uint32_t bitmap_blocks; /* Size of Memory bitmap in block */ | |
90 | uint32_t max_mapnr; /* = max_mapnr, | |
91 | obsoleted in header_version 6 */ | |
92 | uint32_t total_ram_blocks; /* Number of blocks should be written */ | |
93 | uint32_t device_blocks; /* Number of total blocks in dump device */ | |
94 | uint32_t written_blocks; /* Number of written blocks */ | |
95 | uint32_t current_cpu; /* CPU# which handles dump */ | |
96 | uint32_t nr_cpus; /* Number of CPUs */ | |
97 | } DiskDumpHeader64; | |
98 | ||
99 | typedef struct QEMU_PACKED KdumpSubHeader32 { | |
100 | uint32_t phys_base; | |
101 | uint32_t dump_level; /* header_version 1 and later */ | |
102 | uint32_t split; /* header_version 2 and later */ | |
103 | uint32_t start_pfn; /* header_version 2 and later, | |
104 | obsoleted in header_version 6 */ | |
105 | uint32_t end_pfn; /* header_version 2 and later, | |
106 | obsoleted in header_version 6 */ | |
107 | uint64_t offset_vmcoreinfo; /* header_version 3 and later */ | |
108 | uint32_t size_vmcoreinfo; /* header_version 3 and later */ | |
109 | uint64_t offset_note; /* header_version 4 and later */ | |
110 | uint32_t note_size; /* header_version 4 and later */ | |
111 | uint64_t offset_eraseinfo; /* header_version 5 and later */ | |
112 | uint32_t size_eraseinfo; /* header_version 5 and later */ | |
113 | uint64_t start_pfn_64; /* header_version 6 and later */ | |
114 | uint64_t end_pfn_64; /* header_version 6 and later */ | |
115 | uint64_t max_mapnr_64; /* header_version 6 and later */ | |
116 | } KdumpSubHeader32; | |
117 | ||
118 | typedef struct QEMU_PACKED KdumpSubHeader64 { | |
119 | uint64_t phys_base; | |
120 | uint32_t dump_level; /* header_version 1 and later */ | |
121 | uint32_t split; /* header_version 2 and later */ | |
122 | uint64_t start_pfn; /* header_version 2 and later, | |
123 | obsoleted in header_version 6 */ | |
124 | uint64_t end_pfn; /* header_version 2 and later, | |
125 | obsoleted in header_version 6 */ | |
126 | uint64_t offset_vmcoreinfo; /* header_version 3 and later */ | |
127 | uint64_t size_vmcoreinfo; /* header_version 3 and later */ | |
128 | uint64_t offset_note; /* header_version 4 and later */ | |
129 | uint64_t note_size; /* header_version 4 and later */ | |
130 | uint64_t offset_eraseinfo; /* header_version 5 and later */ | |
131 | uint64_t size_eraseinfo; /* header_version 5 and later */ | |
132 | uint64_t start_pfn_64; /* header_version 6 and later */ | |
133 | uint64_t end_pfn_64; /* header_version 6 and later */ | |
134 | uint64_t max_mapnr_64; /* header_version 6 and later */ | |
135 | } KdumpSubHeader64; | |
136 | ||
64cfba6a QN |
137 | typedef struct DataCache { |
138 | int fd; /* fd of the file where to write the cached data */ | |
139 | uint8_t *buf; /* buffer for cached data */ | |
140 | size_t buf_size; /* size of the buf */ | |
141 | size_t data_size; /* size of cached data in buf */ | |
142 | off_t offset; /* offset of the file */ | |
143 | } DataCache; | |
144 | ||
d12f57ec QN |
145 | typedef struct QEMU_PACKED PageDescriptor { |
146 | uint64_t offset; /* the offset of the page data*/ | |
147 | uint32_t size; /* the size of this dump page */ | |
148 | uint32_t flags; /* flags */ | |
149 | uint64_t page_flags; /* page flags */ | |
150 | } PageDescriptor; | |
151 | ||
acb0ef58 BR |
152 | typedef struct DumpState { |
153 | GuestPhysBlockList guest_phys_blocks; | |
154 | ArchDumpInfo dump_info; | |
155 | MemoryMappingList list; | |
156 | uint16_t phdr_num; | |
157 | uint32_t sh_info; | |
158 | bool have_section; | |
159 | bool resume; | |
160 | ssize_t note_size; | |
161 | hwaddr memory_offset; | |
162 | int fd; | |
163 | ||
164 | GuestPhysBlock *next_block; | |
165 | ram_addr_t start; | |
166 | bool has_filter; | |
167 | int64_t begin; | |
168 | int64_t length; | |
169 | ||
170 | uint8_t *note_buf; /* buffer for notes */ | |
171 | size_t note_buf_offset; /* the writing place in note_buf */ | |
172 | uint32_t nr_cpus; /* number of guest's cpu */ | |
173 | uint64_t max_mapnr; /* the biggest guest's phys-mem's number */ | |
174 | size_t len_dump_bitmap; /* the size of the place used to store | |
175 | dump_bitmap in vmcore */ | |
176 | off_t offset_dump_bitmap; /* offset of dump_bitmap part in vmcore */ | |
177 | off_t offset_page; /* offset of page part in vmcore */ | |
178 | size_t num_dumpable; /* number of page that can be dumped */ | |
179 | uint32_t flag_compress; /* indicate the compression format */ | |
baf28f57 | 180 | DumpStatus status; /* current dump status */ |
ca1fc8c9 PX |
181 | |
182 | bool has_format; /* whether format is provided */ | |
183 | DumpGuestMemoryFormat format; /* valid only if has_format == true */ | |
1fbeff72 | 184 | QemuThread dump_thread; /* thread for detached dump */ |
2264c2c9 PX |
185 | |
186 | int64_t total_size; /* total memory size (in bytes) to | |
187 | * be dumped. When filter is | |
188 | * enabled, this will only count | |
189 | * those to be written. */ | |
190 | int64_t written_size; /* written memory size (in bytes), | |
191 | * this could be used to calculate | |
192 | * how much work we have | |
193 | * finished. */ | |
acb0ef58 BR |
194 | } DumpState; |
195 | ||
196 | uint16_t cpu_to_dump16(DumpState *s, uint16_t val); | |
197 | uint32_t cpu_to_dump32(DumpState *s, uint32_t val); | |
198 | uint64_t cpu_to_dump64(DumpState *s, uint64_t val); | |
25ae9c1d | 199 | #endif |