The man page states that with --config the next boot is affected. This can be understood as if _only_ the next bood was affected. This isn't true if the machine is running. This patch adds the full --live, --config, --current infrastructure and tweaks stuff to correctly support the obsolete --persistent flag. --- Notes: - This patch will be greatly simplified with macros from: http://www.redhat.com/archives/libvir-list/2013-March/msg00268.html - There are multiple places like this in virsh that will need update too. (detach-device for example) - https://bugzilla.redhat.com/show_bug.cgi?id=921398 tools/virsh-domain.c | 53 +++++++++++++++++++++++++++++++++++++++++----------- tools/virsh.pod | 22 +++++++++++++++------- 2 files changed, 57 insertions(+), 18 deletions(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index e9da11f..33545f6 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -9304,13 +9304,21 @@ static const vshCmdOptDef opts_update_device[] = { .help = N_("XML file") }, {.name = "persistent", - .type = VSH_OT_ALIAS, - .help = "config" + .type = VSH_OT_BOOL, + .help = N_("make live change persistent") }, {.name = "config", .type = VSH_OT_BOOL, .help = N_("affect next boot") }, + {.name = "live", + .type = VSH_OT_BOOL, + .help = N_("affect running domain") + }, + {.name = "current", + .type = VSH_OT_BOOL, + .help = N_("affect current domain") + }, {.name = "force", .type = VSH_OT_BOOL, .help = N_("force device update") @@ -9325,7 +9333,34 @@ cmdUpdateDevice(vshControl *ctl, const vshCmd *cmd) const char *from = NULL; char *buffer = NULL; bool ret = false; - unsigned int flags; + unsigned int flags = VIR_DOMAIN_AFFECT_CURRENT; + bool current = vshCommandOptBool(cmd, "current"); + bool config = vshCommandOptBool(cmd, "config"); + bool live = vshCommandOptBool(cmd, "live"); + bool persistent = vshCommandOptBool(cmd, "persistent"); + + if (persistent) { + if (current || config || live) { + vshError(ctl, "%s", _("--persistent is incompatible with " + "--current, --live or --config")); + return false; + } + + flags = VIR_DOMAIN_AFFECT_CONFIG; + } else { + if (current) { + if (live || config) { + vshError(ctl, "%s", _("--current must be specified " + "exclusively")); + return false; + } + } else { + if (config) + flags |= VIR_DOMAIN_AFFECT_CONFIG; + if (live) + flags |= VIR_DOMAIN_AFFECT_LIVE; + } + } if (!(dom = vshCommandOptDomain(ctl, cmd, NULL))) return false; @@ -9333,19 +9368,15 @@ cmdUpdateDevice(vshControl *ctl, const vshCmd *cmd) if (vshCommandOptStringReq(ctl, cmd, "file", &from) < 0) goto cleanup; + if (persistent && + virDomainIsActive(dom) == 1) + flags |= VIR_DOMAIN_AFFECT_LIVE; + if (virFileReadAll(from, VSH_MAX_XML_FILE, &buffer) < 0) { vshReportError(ctl); goto cleanup; } - if (vshCommandOptBool(cmd, "config")) { - flags = VIR_DOMAIN_AFFECT_CONFIG; - if (virDomainIsActive(dom) == 1) - flags |= VIR_DOMAIN_AFFECT_LIVE; - } else { - flags = VIR_DOMAIN_AFFECT_LIVE; - } - if (vshCommandOptBool(cmd, "force")) flags |= VIR_DOMAIN_DEVICE_MODIFY_FORCE; diff --git a/tools/virsh.pod b/tools/virsh.pod index 7fb89e4..8bb0490 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -1887,18 +1887,26 @@ If I<--config> is specified, alter persistent configuration, effect observed on next boot, for compatibility purposes, I<--persistent> is alias of I<--config>. -=item B<update-device> I<domain> I<file> [I<--config>] [I<--force>] +=item B<update-device> I<domain> I<file> [I<--force>] +[[[I<--live>] [I<--config>] | [I<--current>]] | [I<--persistent>]] Update the characteristics of a device associated with I<domain>, -based on the device definition in an XML I<file>. If the I<--config> -option is used, the changes will take affect the next time libvirt -starts the domain. For compatibility purposes, I<--persistent> is -alias of I<--config>. The I<--force> option can be used to force -device update, e.g., to eject a CD-ROM even if it is locked/mounted in -the domain. See the documentation at +based on the device definition in an XML I<file>. The I<--force> option +can be used to force device update, e.g., to eject a CD-ROM even if it is +locked/mounted in the domain. See the documentation at L<http://libvirt.org/formatdomain.html#elementsDevices> to learn about libvirt XML format for a device. +If I<--live> is specified, affect a running domain. +If I<--config> is specified, affect the next startup of a persistent domain. +If I<--current> is specified, affect the current domain state. +Both I<--live> and I<--config> flags may be given, but I<--current> is +exclusive. Not specifying any flag is the same as specifying I<--current>. + +For compatibility purposes, I<--persistent> is alias of I<--config> and +I<--live> if the domain is running. This flag isn't compatible with the +other domain status flags. + =item B<change-media> I<domain> I<path> [I<--eject>] [I<--insert>] [I<--update>] [I<source>] [I<--force>] [[I<--live>] [I<--config>] | [I<--current>]] -- 1.8.1.5