+(* Memory info for virtual domains.
+ (C) Copyright 2008 Richard W.M. Jones, Red Hat Inc.
+ http://libvirt.org/
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *)
+
+open Printf
+
+open Virt_mem_gettext.Gettext
+open Virt_mem_utils
+open Virt_mem_mmap
+
+let usage = s_"NAME
+ virt-dmesg - dmesg command for virtual machines
+
+SUMMARY
+ virt-dmesg [-options] [domains]
+
+DESCRIPTION
+ virt-dmesg prints the kernel messages for virtual machines running
+ under libvirt. The output is similar to the ordinary dmesg command
+ run inside the virtual machine."
+
+let verbose, images = Virt_mem.start usage
+
+let () =
+ List.iter (
+ fun (name, arch, mem, lookup_ksym) ->
+ try
+ (* I don't know why but this symbol doesn't exist in 2.6.9
+ * even in kallsyms. Hence this won't work with that kernel.
+ * It's possible we can fall back to memory scanning. XXX
+ *)
+ let log_buf = lookup_ksym "log_buf" in
+ let log_buf_len = lookup_ksym "log_buf_len" in
+ let log_start = lookup_ksym "log_start" in
+ let log_end = lookup_ksym "log_end" in
+ let con_start = lookup_ksym "con_start" in
+
+ ()
+
+ with
+ Not_found ->
+ eprintf (f_"%s: could not find kernel log buffer in kernel image\n")
+ name
+ ) images