2 (* Memory info command for virtual domains.
3 (C) Copyright 2008 Richard W.M. Jones, Red Hat Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 module D = Libvirt.Domain
30 module Ksymmap = Map.Make (String)
33 dom : Libvirt.ro D.t option;
35 arch : Virt_mem_utils.architecture;
36 mem : ([`Wordsize], [`Endian], [`HasMapping]) Virt_mem_mmap.t;
53 kernel_release : string;
54 kernel_version : string;
59 (* This is the maximum we can download in one go over the libvirt
62 * XXX Should have a 'D.max_peek' function.
64 let max_memory_peek = 65536
66 type load_memory_error =
70 exception LoadMemoryError of load_memory_error * string
72 let _load_memory mem dom start size =
73 let str = String.create size in
75 let remaining = size - i in
76 if remaining > 0 then (
77 let size = min remaining max_memory_peek in
78 D.memory_peek dom [D.Virtual] (start +^ Int64.of_int i) size str i;
84 add_string mem str start
86 let load_static_memory ~dom ~domname ~arch ~wordsize ~endian
87 ~kernel_min ~kernel_max start size =
88 if start < kernel_min then
89 raise (LoadMemoryError (AddressOutOfRange,
90 "load_memory: start < kernel_min"))
91 else if start +^ Int64.of_int size > kernel_max then
92 raise (LoadMemoryError (AddressOutOfRange,
93 "load_memory: start+size > kernel_max"))
95 let mem = Virt_mem_mmap.create () in
96 let mem = Virt_mem_mmap.set_wordsize mem wordsize in
97 let mem = Virt_mem_mmap.set_endian mem endian in
99 let mem = _load_memory mem dom start size in
101 { dom = Some dom; domname = domname; mem = mem; arch = arch;
102 kernel_min = kernel_min; kernel_max = kernel_max }
105 let load_memory ({ dom = dom; mem = mem; kernel_min = kernel_min;
106 kernel_max = kernel_max } as image) start size =
107 if start < kernel_min then
108 raise (LoadMemoryError (AddressOutOfRange,
109 "load_memory: start < kernel_min"))
110 else if start +^ Int64.of_int size > kernel_max then
111 raise (LoadMemoryError (AddressOutOfRange,
112 "load_memory: start+size > kernel_max"))
113 else if is_mapped_range mem start size then image
117 raise (LoadMemoryError (DomIsNull, "load_memory: dom = None"))
119 let mem = _load_memory mem dom start size in
120 { image with mem = mem }