XenStore: Difference between revisions
From Xen
Jump to navigationJump to search
Lars.kurth (talk | contribs) mNo edit summary |
(Replace shell script with the oneliner which does the same thing) |
||
| (2 intermediate revisions by 2 users not shown) | |||
| Line 6: | Line 6: | ||
__NOTOC__ |
__NOTOC__ |
||
[[XenStore]] is an information storage space shared between domains. It is meant for configuration and status information rather than for large data transfers. Each domain gets its own path in the store, which is somewhat similar in spirit to procfs. When values are changed in the store, the appropriate drivers are notified. For more information and a guide to developing with [[XenStore]], see [[XenBus]]. |
[[XenStore]] is an information storage space shared between domains maintained by the [[Xenstored]]. It is meant for configuration and status information rather than for large data transfers. Each domain gets its own path in the store, which is somewhat similar in spirit to procfs. When values are changed in the store, the appropriate drivers are notified. For more information and a guide to developing with [[XenStore]], see [[XenBus]]. |
||
You can find more about the data stored in [[XenStore]] at [[XenStoreReference]]. |
You can find more about the data stored in [[XenStore]] at [[XenStoreReference]]. |
||
You can dump the contents of the xenstore using the <code>xenstore-ls</code> tool. |
|||
<pre><nowiki> |
<pre><nowiki> |
||
# xenstore-ls |
|||
#!/bin/sh |
|||
local = "" |
|||
domain = "" |
|||
0 = "" |
|||
name = "Domain-0" |
|||
device-model = "" |
|||
| ⚫ | |||
state = "running" |
|||
memory = "" |
|||
target = "524288" |
|||
static-max = "524288" |
|||
freemem-slack = "1254331" |
|||
libxl = "" |
|||
disable_udev = "1" |
|||
vm = "" |
|||
libxl = "" |
|||
</nowiki></pre> |
|||
or with <code>-f</code> to produce a flattened output |
|||
function dumpkey() { |
|||
local param=${1} |
|||
local key |
|||
local result |
|||
result=$(xenstore-list ${param}) |
|||
if [ "${result}" != "" ] ; then |
|||
for key in ${result} ; do dumpkey ${param}/${key} ; done |
|||
| ⚫ | |||
echo -n ${param}'=' |
|||
xenstore-read ${param} |
|||
fi |
|||
} |
|||
<pre><nowiki> |
|||
for key in /vm /local/domain /tool ; do dumpkey ${key} ; done |
|||
# xenstore-ls -f |
|||
/local = "" |
|||
/local/domain = "" |
|||
/local/domain/0 = "" |
|||
/local/domain/0/name = "Domain-0" |
|||
/local/domain/0/device-model = "" |
|||
/local/domain/0/device-model/0 = "" |
|||
/local/domain/0/device-model/0/state = "running" |
|||
/local/domain/0/memory = "" |
|||
/local/domain/0/memory/target = "524288" |
|||
/local/domain/0/memory/static-max = "524288" |
|||
/local/domain/0/memory/freemem-slack = "1254331" |
|||
/local/domain/0/libxl = "" |
|||
/local/domain/0/libxl/disable_udev = "1" |
|||
/vm = "" |
|||
/libxl = "" |
|||
</nowiki></pre> |
</nowiki></pre> |
||
[[Category:Xen]] |
[[Category:Xen]] |
||
Latest revision as of 09:59, 25 February 2015
XenStore is an information storage space shared between domains maintained by the Xenstored. It is meant for configuration and status information rather than for large data transfers. Each domain gets its own path in the store, which is somewhat similar in spirit to procfs. When values are changed in the store, the appropriate drivers are notified. For more information and a guide to developing with XenStore, see XenBus.
You can find more about the data stored in XenStore at XenStoreReference.
You can dump the contents of the xenstore using the xenstore-ls tool.
# xenstore-ls
local = ""
domain = ""
0 = ""
name = "Domain-0"
device-model = ""
0 = ""
state = "running"
memory = ""
target = "524288"
static-max = "524288"
freemem-slack = "1254331"
libxl = ""
disable_udev = "1"
vm = ""
libxl = ""
or with -f to produce a flattened output
# xenstore-ls -f /local = "" /local/domain = "" /local/domain/0 = "" /local/domain/0/name = "Domain-0" /local/domain/0/device-model = "" /local/domain/0/device-model/0 = "" /local/domain/0/device-model/0/state = "running" /local/domain/0/memory = "" /local/domain/0/memory/target = "524288" /local/domain/0/memory/static-max = "524288" /local/domain/0/memory/freemem-slack = "1254331" /local/domain/0/libxl = "" /local/domain/0/libxl/disable_udev = "1" /vm = "" /libxl = ""
 Language: |
[[::XenStore|English]] • [[::XenStore/fr|français]] |
|---|
