Incoming migration may require quite a few parameters (URI, fd, path) to
be considered while starting QEMU and we will soon add another one.
Let's group all of them in a single struct.
Signed-off-by: Jiri Denemark <jdenemar@xxxxxxxxxx>
---
src/qemu/qemu_process.c | 67 +++++++++++++++++++++++++++++++++++++++----------
src/qemu/qemu_process.h | 14 +++++++++++
2 files changed, 68 insertions(+), 13 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index fdd640d..638ad02 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -4156,6 +4156,47 @@ qemuLogOperation(virDomainObjPtr vm,
goto cleanup;
}
+
+void
+qemuProcessIncomingDefFree(qemuProcessIncomingDefPtr inc)
+{
+ if (!inc)
+ return;
+
+ VIR_FREE(inc->launchURI);
+ VIR_FREE(inc);
+}
+
+
+qemuProcessIncomingDefPtr
+qemuProcessIncomingDefNew(virQEMUCapsPtr qemuCaps,
+ const char *migrateFrom,
+ int fd,
+ const char *path)
+{
+ qemuProcessIncomingDefPtr inc = NULL;
+
+ if (qemuMigrationCheckIncoming(qemuCaps, migrateFrom) < 0)
+ return NULL;
+
+ if (VIR_ALLOC(inc) < 0)
+ return NULL;
+
+ inc->launchURI = qemuMigrationIncomingURI(migrateFrom, fd);
+ if (!inc->launchURI)
+ goto error;
+
+ inc->fd = fd;
+ inc->path = path;
+
+ return inc;
+
+ error:
+ qemuProcessIncomingDefFree(inc);
+ return NULL;
+}
+
+
int qemuProcessStart(virConnectPtr conn,
virQEMUDriverPtr driver,
virDomainObjPtr vm,
@@ -4185,7 +4226,7 @@ int qemuProcessStart(virConnectPtr conn,
size_t nnicindexes = 0;
int *nicindexes = NULL;
char *tmppath = NULL;
- char *migrateURI = NULL;
+ qemuProcessIncomingDefPtr incoming = NULL;
VIR_DEBUG("vm=%p name=%s id=%d asyncJob=%d migrateFrom=%s stdin_fd=%d "
"stdin_path=%s snapshot=%p vmop=%d flags=0x%x",
@@ -4514,25 +4555,25 @@ int qemuProcessStart(virConnectPtr conn,
}
if (migrateFrom) {
- if (qemuMigrationCheckIncoming(priv->qemuCaps, migrateFrom) < 0)
- goto error;
-
- if (!(migrateURI = qemuMigrationIncomingURI(migrateFrom, stdin_fd)))
+ incoming = qemuProcessIncomingDefNew(priv->qemuCaps, migrateFrom,
+ stdin_fd, stdin_path);
+ if (!incoming)
goto error;
}
VIR_DEBUG("Building emulator command line");
if (!(cmd = qemuBuildCommandLine(conn, driver, vm->def, priv->monConfig,
priv->monJSON, priv->qemuCaps,
- migrateURI, snapshot, vmop,
+ incoming ? incoming->launchURI : NULL,
+ snapshot, vmop,
&buildCommandLineCallbacks, false,
qemuCheckFips(),
priv->autoNodeset,
&nnicindexes, &nicindexes)))
goto error;
- if (migrateFrom && stdin_fd != -1)
- virCommandPassFD(cmd, stdin_fd, 0);
+ if (incoming && incoming->fd != -1)
+ virCommandPassFD(cmd, incoming->fd, 0);
/*
* Create all per-domain directories in order to make sure domain
@@ -4731,7 +4772,7 @@ int qemuProcessStart(virConnectPtr conn,
goto error;
VIR_DEBUG("Handshake complete, child running");
- if (migrateFrom)
+ if (incoming)
flags |= VIR_QEMU_PROCESS_START_PAUSED;
if (rv == -1) /* The VM failed to start; tear filters before taps */
@@ -4852,7 +4893,7 @@ int qemuProcessStart(virConnectPtr conn,
/* Since CPUs were not started yet, the balloon could not return the memory
* to the host and thus cur_balloon needs to be updated so that GetXMLdesc
* and friends return the correct size in case they can't grab the job */
- if (!migrateFrom && !snapshot &&
+ if (!incoming && !snapshot &&
qemuProcessRefreshBalloonState(driver, vm, asyncJob) < 0)
goto error;
@@ -4873,7 +4914,7 @@ int qemuProcessStart(virConnectPtr conn,
}
} else {
virDomainObjSetState(vm, VIR_DOMAIN_PAUSED,
- migrateFrom ?
+ incoming ?
VIR_DOMAIN_PAUSED_MIGRATION :
VIR_DOMAIN_PAUSED_USER);
}
@@ -4905,7 +4946,7 @@ int qemuProcessStart(virConnectPtr conn,
/* Keep watching qemu log for errors during incoming migration, otherwise
* unset reporting errors from qemu log. */
- if (!migrateFrom)
+ if (!incoming)
qemuMonitorSetDomainLog(priv->mon, -1);
ret = 0;
@@ -4918,7 +4959,7 @@ int qemuProcessStart(virConnectPtr conn,
VIR_FREE(nicindexes);
VIR_FREE(nodeset);
VIR_FREE(tmppath);
- VIR_FREE(migrateURI);
+ qemuProcessIncomingDefFree(incoming);
return ret;
error:
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index d40f68d..7eee2b2 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -44,6 +44,20 @@ void qemuProcessReconnectAll(virConnectPtr conn, virQEMUDriverPtr driver);
int qemuProcessAssignPCIAddresses(virDomainDefPtr def);
+typedef struct _qemuProcessIncomingDef qemuProcessIncomingDef;
+typedef qemuProcessIncomingDef *qemuProcessIncomingDefPtr;
+struct _qemuProcessIncomingDef {
+ char *launchURI; /* used as a parameter for -incoming command line option */
+ int fd; /* for fd:N URI */
+ const char *path; /* path associated with fd */
+};
+
+qemuProcessIncomingDefPtr qemuProcessIncomingDefNew(virQEMUCapsPtr qemuCaps,
+ const char *migrateFrom,
+ int fd,
+ const char *path);
+void qemuProcessIncomingDefFree(qemuProcessIncomingDefPtr inc);
+
typedef enum {
VIR_QEMU_PROCESS_START_COLD = 1 << 0,
VIR_QEMU_PROCESS_START_PAUSED = 1 << 1,
--
2.6.3
--
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