[libvirt] [PATCH REPOST 1/9] qemu: Introduce qemuBuildClockCommandLine
John Ferlan
jferlan at redhat.com
Tue Mar 8 19:03:08 UTC 2016
Add new function to manage adding the '-clock' options to the command
line removing that task from the mainline qemuBuildCommandLine.
Also includes some minor formatting cleanups.
Signed-off-by: John Ferlan <jferlan at redhat.com>
---
src/qemu/qemu_command.c | 300 ++++++++++++++++++++++++++----------------------
1 file changed, 160 insertions(+), 140 deletions(-)
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 000c29d..c890b75 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -4621,6 +4621,7 @@ qemuBuildSgaCommandLine(virCommandPtr cmd,
static char *
qemuBuildClockArgStr(virDomainClockDefPtr def)
{
+ size_t i;
virBuffer buf = VIR_BUFFER_INITIALIZER;
switch (def->offset) {
@@ -4685,8 +4686,8 @@ qemuBuildClockArgStr(virDomainClockDefPtr def)
goto error;
}
- /* Look for an 'rtc' timer element, and add in appropriate clock= and driftfix= */
- size_t i;
+ /* Look for an 'rtc' timer element, and add in appropriate
+ * clock= and driftfix= */
for (i = 0; i < def->ntimers; i++) {
if (def->timers[i]->name == VIR_DOMAIN_TIMER_NAME_RTC) {
switch (def->timers[i]->track) {
@@ -4736,6 +4737,161 @@ qemuBuildClockArgStr(virDomainClockDefPtr def)
return NULL;
}
+
+/* NOTE: Building of commands can change def->clock->data.* values, so
+ * virDomainDef is not const here.
+ */
+static int
+qemuBuildClockCommandLine(virCommandPtr cmd,
+ virDomainDefPtr def,
+ virQEMUCapsPtr qemuCaps)
+{
+ size_t i;
+
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC)) {
+ char *rtcopt;
+ virCommandAddArg(cmd, "-rtc");
+ if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
+ return -1;
+ virCommandAddArg(cmd, rtcopt);
+ VIR_FREE(rtcopt);
+ } else {
+ switch (def->clock.offset) {
+ case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
+ case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
+ virCommandAddArg(cmd, "-localtime");
+ break;
+
+ case VIR_DOMAIN_CLOCK_OFFSET_UTC:
+ /* Nothing, its the default */
+ break;
+
+ default:
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported clock offset '%s'"),
+ virDomainClockOffsetTypeToString(def->clock.offset));
+ return -1;
+ }
+ }
+
+ if (def->clock.offset == VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE &&
+ def->clock.data.timezone) {
+ virCommandAddEnvPair(cmd, "TZ", def->clock.data.timezone);
+ }
+
+ for (i = 0; i < def->clock.ntimers; i++) {
+ switch ((virDomainTimerNameType) def->clock.timers[i]->name) {
+ case VIR_DOMAIN_TIMER_NAME_PLATFORM:
+ case VIR_DOMAIN_TIMER_NAME_TSC:
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported timer type (name) '%s'"),
+ virDomainTimerNameTypeToString(def->clock.timers[i]->name));
+ return -1;
+
+ case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
+ case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
+ /* Timers above are handled when building -cpu. */
+ case VIR_DOMAIN_TIMER_NAME_LAST:
+ break;
+
+ case VIR_DOMAIN_TIMER_NAME_RTC:
+ /* This has already been taken care of (in qemuBuildClockArgStr)
+ if QEMU_CAPS_RTC is set (mutually exclusive with
+ QEMUD_FLAG_RTC_TD_HACK) */
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC_TD_HACK)) {
+ switch (def->clock.timers[i]->tickpolicy) {
+ case -1:
+ case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
+ /* the default - do nothing */
+ break;
+ case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
+ virCommandAddArg(cmd, "-rtc-td-hack");
+ break;
+ case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
+ case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported rtc tickpolicy '%s'"),
+ virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
+ return -1;
+ }
+ } else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC) &&
+ (def->clock.timers[i]->tickpolicy
+ != VIR_DOMAIN_TIMER_TICKPOLICY_DELAY) &&
+ (def->clock.timers[i]->tickpolicy != -1)) {
+ /* a non-default rtc policy was given, but there is no
+ way to implement it in this version of qemu */
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported rtc tickpolicy '%s'"),
+ virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
+ return -1;
+ }
+ break;
+
+ case VIR_DOMAIN_TIMER_NAME_PIT:
+ switch (def->clock.timers[i]->tickpolicy) {
+ case -1:
+ case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
+ /* delay is the default if we don't have kernel
+ (-no-kvm-pit), otherwise, the default is catchup. */
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY))
+ virCommandAddArgList(cmd, "-global",
+ "kvm-pit.lost_tick_policy=discard", NULL);
+ else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT))
+ virCommandAddArg(cmd, "-no-kvm-pit-reinjection");
+ break;
+ case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT) ||
+ virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY)) {
+ /* do nothing - this is default for kvm-pit */
+ } else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_TDF)) {
+ /* -tdf switches to 'catchup' with userspace pit. */
+ virCommandAddArg(cmd, "-tdf");
+ } else {
+ /* can't catchup if we have neither pit mode */
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported pit tickpolicy '%s'"),
+ virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
+ return -1;
+ }
+ break;
+ case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
+ case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
+ /* no way to support these modes for pit in qemu */
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported pit tickpolicy '%s'"),
+ virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
+ return -1;
+ }
+ break;
+
+ case VIR_DOMAIN_TIMER_NAME_HPET:
+ /* the only meaningful attribute for hpet is "present". If
+ * present is -1, that means it wasn't specified, and
+ * should be left at the default for the
+ * hypervisor. "default" when -no-hpet exists is "yes",
+ * and when -no-hpet doesn't exist is "no". "confusing"?
+ * "yes"! */
+
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_HPET)) {
+ if (def->clock.timers[i]->present == 0)
+ virCommandAddArg(cmd, "-no-hpet");
+ } else {
+ /* no hpet timer available. The only possible action
+ is to raise an error if present="yes" */
+ if (def->clock.timers[i]->present == 1) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ "%s", _("hpet timer is not supported"));
+ return -1;
+ }
+ }
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
static int
qemuBuildCpuModelArgStr(virQEMUDriverPtr driver,
const virDomainDef *def,
@@ -7182,144 +7338,8 @@ qemuBuildCommandLine(virConnectPtr conn,
monitor_json) < 0)
goto error;
- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC)) {
- char *rtcopt;
- virCommandAddArg(cmd, "-rtc");
- if (!(rtcopt = qemuBuildClockArgStr(&def->clock)))
- goto error;
- virCommandAddArg(cmd, rtcopt);
- VIR_FREE(rtcopt);
- } else {
- switch (def->clock.offset) {
- case VIR_DOMAIN_CLOCK_OFFSET_LOCALTIME:
- case VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE:
- virCommandAddArg(cmd, "-localtime");
- break;
-
- case VIR_DOMAIN_CLOCK_OFFSET_UTC:
- /* Nothing, its the default */
- break;
-
- default:
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported clock offset '%s'"),
- virDomainClockOffsetTypeToString(def->clock.offset));
- goto error;
- }
- }
- if (def->clock.offset == VIR_DOMAIN_CLOCK_OFFSET_TIMEZONE &&
- def->clock.data.timezone) {
- virCommandAddEnvPair(cmd, "TZ", def->clock.data.timezone);
- }
-
- for (i = 0; i < def->clock.ntimers; i++) {
- switch ((virDomainTimerNameType) def->clock.timers[i]->name) {
- case VIR_DOMAIN_TIMER_NAME_PLATFORM:
- case VIR_DOMAIN_TIMER_NAME_TSC:
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported timer type (name) '%s'"),
- virDomainTimerNameTypeToString(def->clock.timers[i]->name));
- goto error;
-
- case VIR_DOMAIN_TIMER_NAME_KVMCLOCK:
- case VIR_DOMAIN_TIMER_NAME_HYPERVCLOCK:
- /* Timers above are handled when building -cpu. */
- case VIR_DOMAIN_TIMER_NAME_LAST:
- break;
-
- case VIR_DOMAIN_TIMER_NAME_RTC:
- /* This has already been taken care of (in qemuBuildClockArgStr)
- if QEMU_CAPS_RTC is set (mutually exclusive with
- QEMUD_FLAG_RTC_TD_HACK) */
- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC_TD_HACK)) {
- switch (def->clock.timers[i]->tickpolicy) {
- case -1:
- case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
- /* the default - do nothing */
- break;
- case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
- virCommandAddArg(cmd, "-rtc-td-hack");
- break;
- case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
- case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported rtc tickpolicy '%s'"),
- virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
- goto error;
- }
- } else if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_RTC) &&
- (def->clock.timers[i]->tickpolicy
- != VIR_DOMAIN_TIMER_TICKPOLICY_DELAY) &&
- (def->clock.timers[i]->tickpolicy != -1)) {
- /* a non-default rtc policy was given, but there is no
- way to implement it in this version of qemu */
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported rtc tickpolicy '%s'"),
- virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
- goto error;
- }
- break;
-
- case VIR_DOMAIN_TIMER_NAME_PIT:
- switch (def->clock.timers[i]->tickpolicy) {
- case -1:
- case VIR_DOMAIN_TIMER_TICKPOLICY_DELAY:
- /* delay is the default if we don't have kernel
- (-no-kvm-pit), otherwise, the default is catchup. */
- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY))
- virCommandAddArgList(cmd, "-global",
- "kvm-pit.lost_tick_policy=discard", NULL);
- else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT))
- virCommandAddArg(cmd, "-no-kvm-pit-reinjection");
- break;
- case VIR_DOMAIN_TIMER_TICKPOLICY_CATCHUP:
- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_KVM_PIT) ||
- virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM_PIT_TICK_POLICY)) {
- /* do nothing - this is default for kvm-pit */
- } else if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_TDF)) {
- /* -tdf switches to 'catchup' with userspace pit. */
- virCommandAddArg(cmd, "-tdf");
- } else {
- /* can't catchup if we have neither pit mode */
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported pit tickpolicy '%s'"),
- virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
- goto error;
- }
- break;
- case VIR_DOMAIN_TIMER_TICKPOLICY_MERGE:
- case VIR_DOMAIN_TIMER_TICKPOLICY_DISCARD:
- /* no way to support these modes for pit in qemu */
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("unsupported pit tickpolicy '%s'"),
- virDomainTimerTickpolicyTypeToString(def->clock.timers[i]->tickpolicy));
- goto error;
- }
- break;
-
- case VIR_DOMAIN_TIMER_NAME_HPET:
- /* the only meaningful attribute for hpet is "present". If
- * present is -1, that means it wasn't specified, and
- * should be left at the default for the
- * hypervisor. "default" when -no-hpet exists is "yes",
- * and when -no-hpet doesn't exist is "no". "confusing"?
- * "yes"! */
-
- if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_NO_HPET)) {
- if (def->clock.timers[i]->present == 0)
- virCommandAddArg(cmd, "-no-hpet");
- } else {
- /* no hpet timer available. The only possible action
- is to raise an error if present="yes" */
- if (def->clock.timers[i]->present == 1) {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- "%s", _("hpet timer is not supported"));
- goto error;
- }
- }
- break;
- }
- }
+ if (qemuBuildClockCommandLine(cmd, def, qemuCaps) < 0)
+ goto error;
/* Only add -no-reboot option if each event destroys domain */
if (def->onReboot == VIR_DOMAIN_LIFECYCLE_DESTROY &&
--
2.5.0
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