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1ed90b28af
There may be holes in the memory address saved for PCI, etc. In such cases, the memory dump is divided into regions. With this patch, up to 3 memory regions are supported. (hfu@vmware.com)
112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/*
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* vmware_vmss.h
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*
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* Copyright (c) 2015 VMware, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Author: Dyno Hongjun Fu <hfu@vmware.com>
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*/
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#define CPTDUMP_OLD_MAGIC_NUMBER 0xbed0bed0
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#define CPTDUMP_MAGIC_NUMBER 0xbed2bed2
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#define CPTDUMP_PARTIAL_MAGIC_NUMBER 0xbed3bed3
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#define CPTDUMP_RESTORED_MAGIC_NUMBER 0xbad1bad1
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#define CPTDUMP_NORESTORE_MAGIC_NUMBER 0xbad2bad2
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/*
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* Poor man's bit fields
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* TAG: | NAMELEN | NINDX | VALSIZE |
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* bits |15 8|7 6|5 0|
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* size | 8 | 2 | 6 |
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*/
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#define TAG_NAMELEN_MASK 0xFF
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#define TAG_NAMELEN_OFFSET 8
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#define TAG_NINDX_MASK 0x3
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#define TAG_NINDX_OFFSET 6
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#define TAG_VALSIZE_MASK 0x3F
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#define TAG_VALSIZE_OFFSET 0
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#define TAG_SIZE 2
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/*
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* The value size has two special values to indicate blocks and compressed
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* blocks.
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*/
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#define TAG_ISBLOCK TAG_VALSIZE_MASK
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#define TAG_ISBLOCK_COMPRESSED (TAG_VALSIZE_MASK-1)
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#define MAKE_TAG(_nl, _nidx, _nb) \
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(((_nl) & TAG_NAMELEN_MASK) << TAG_NAMELEN_OFFSET | \
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((_nidx) & TAG_NINDX_MASK) << TAG_NINDX_OFFSET | \
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((_nb) & TAG_VALSIZE_MASK) << TAG_VALSIZE_OFFSET)
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#define TAG_NAMELEN(_tag) (((_tag) >> TAG_NAMELEN_OFFSET) & TAG_NAMELEN_MASK)
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#define TAG_NINDX(_tag) (((_tag) >> TAG_NINDX_OFFSET) & TAG_NINDX_MASK)
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#define TAG_VALSIZE(_tag) (((_tag) >> TAG_VALSIZE_OFFSET) & TAG_VALSIZE_MASK)
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#define NULL_TAG MAKE_TAG(0, 0, 0)
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#define NO_INDEX (-1)
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/*
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* TRUE iff it's a (optionally compressed) block
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*/
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#define IS_BLOCK_TAG(_tag) (TAG_VALSIZE(_tag) == TAG_ISBLOCK || \
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TAG_VALSIZE(_tag) == TAG_ISBLOCK_COMPRESSED)
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/*
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* TRUE iff it's a compressed block.
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*/
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#define IS_BLOCK_COMPRESSED_TAG(_tag) (TAG_VALSIZE(_tag) == TAG_ISBLOCK_COMPRESSED)
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struct cptdumpheader {
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uint32_t id;
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uint32_t version;
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uint32_t numgroups;
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};
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typedef struct cptdumpheader cptdumpheader;
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#define MAX_LENGTH 64
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struct cptgroupdesc {
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char name[MAX_LENGTH];
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uint64_t position;
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uint64_t size;
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};
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typedef struct cptgroupdesc cptgroupdesc;
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struct memregion {
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uint32_t startpagenum;
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uint32_t startppn;
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uint32_t size;
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};
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typedef struct memregion memregion;
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#define MAX_REGIONS 3
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struct vmssdata {
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int32_t cpt64bit;
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FILE *dfp;
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/* about the memory */
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uint32_t alignmask;
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uint32_t regionscount;
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memregion regions[MAX_REGIONS];
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uint64_t memoffset;
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uint64_t memsize;
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};
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typedef struct vmssdata vmssdata;
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#define DEBUG_PARSE_PRINT(x) \
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do { \
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if (CRASHDEBUG(1)) { \
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fprintf x; \
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} \
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} while(0)
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