[PATCH] conf: add realtime parameter for rtc

[gongwei]

    Pass the parameter clock rt to qemu to ensure that the
    virtual machine is not synchronized with the host time
---
 src/conf/domain_conf.c   | 1 +
 src/qemu/qemu_command.c  | 3 +++
 src/qemu/qemu_validate.c | 1 +
 3 files changed, 5 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index dab4f10..c19124d 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1106,6 +1106,7 @@ VIR_ENUM_IMPL(virDomainTimerTrack,
               "boot",
               "guest",
               "wall",
+              "realtime",
 );
 
 VIR_ENUM_IMPL(virDomainTimerTickpolicy,
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 1ec302d..5e09aa0 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -5947,6 +5947,9 @@ qemuBuildClockArgStr(virDomainClockDefPtr def)
             case VIR_DOMAIN_TIMER_TRACK_WALL:
                 virBufferAddLit(&buf, ",clock=host");
                 break;
+            case VIR_DOMAIN_TIMER_TRACK_REALTIME:
+                virBufferAddLit(&buf, ",clock=rt");
+                break;
             }
 
             switch (def->timers[i]->tickpolicy) {
diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index a060bd9..d4fe40f 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -444,6 +444,7 @@ qemuValidateDomainDefClockTimers(const virDomainDef *def,
             case -1: /* unspecified - use hypervisor default */
             case VIR_DOMAIN_TIMER_TRACK_GUEST:
             case VIR_DOMAIN_TIMER_TRACK_WALL:
+            case VIR_DOMAIN_TIMER_TRACK_REALTIME:
                 break;
             case VIR_DOMAIN_TIMER_TRACK_BOOT:
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
-- 
1.8.3.1