- .args_type = "paging:-p,filename:F,begin:i?,length:i?",
- .params = "[-p] filename [begin] [length]",
- .help = "dump guest memory to file"
- "\n\t\t\t begin(optional): the starting physical address"
- "\n\t\t\t length(optional): the memory size, in bytes",
+ .args_type = "paging:-p,zlib:-z,lzo:-l,snappy:-s,filename:F,begin:i?,length:i?",
+ .params = "[-p] [-z|-l|-s] filename [begin length]",
+ .help = "dump guest memory into file 'filename'.\n\t\t\t"
+ "-p: do paging to get guest's memory mapping.\n\t\t\t"
+ "-z: dump in kdump-compressed format, with zlib compression.\n\t\t\t"
+ "-l: dump in kdump-compressed format, with lzo compression.\n\t\t\t"
+ "-s: dump in kdump-compressed format, with snappy compression.\n\t\t\t"
+ "begin: the starting physical address.\n\t\t\t"
+ "length: the memory size, in bytes.",