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backup: Add new parameters to qemu monitor nbd-server-add

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The upcoming virDomainBackup() API needs to take advantage of the
ability to expose a bitmap as part of nbd-server-add for a pull-mode
backup (this is the recently-added QEMU_CAPS_NBD_BITMAP capability).

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Eric Blake 2019-06-05 21:25:05 -05:00
parent ad1c17c8d5
commit fbb5271c78
6 changed files with 21 additions and 8 deletions
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2
src/qemu/qemu_migration.c
View File

@ -424,7 +424,7 @@ qemuMigrationDstStartNBDServer(virQEMUDriverPtr driver,
goto exit_monitor;
}
if (qemuMonitorNBDServerAdd(priv->mon, diskAlias, true) < 0)
if (qemuMonitorNBDServerAdd(priv->mon, diskAlias, NULL, true, NULL) < 0)
goto exit_monitor;
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;

10
src/qemu/qemu_monitor.c
View File

@ -3945,13 +3945,17 @@ qemuMonitorNBDServerStart(qemuMonitorPtr mon,
int
qemuMonitorNBDServerAdd(qemuMonitorPtr mon,
const char *deviceID,
bool writable)
const char *export,
bool writable,
const char *bitmap)
{
VIR_DEBUG("deviceID=%s", deviceID);
VIR_DEBUG("deviceID=%s, export=%s, bitmap=%s", deviceID, NULLSTR(export),
NULLSTR(bitmap));
QEMU_CHECK_MONITOR(mon);
return qemuMonitorJSONNBDServerAdd(mon, deviceID, writable);
return qemuMonitorJSONNBDServerAdd(mon, deviceID, export, writable,
bitmap);
}

4
src/qemu/qemu_monitor.h
View File

@ -1118,7 +1118,9 @@ int qemuMonitorNBDServerStart(qemuMonitorPtr mon,
ATTRIBUTE_NONNULL(2);
int qemuMonitorNBDServerAdd(qemuMonitorPtr mon,
const char *deviceID,
bool writable);
const char *export,
bool writable,
const char *bitmap);
int qemuMonitorNBDServerStop(qemuMonitorPtr);
int qemuMonitorGetTPMModels(qemuMonitorPtr mon,
char ***tpmmodels);

7
src/qemu/qemu_monitor_json.c
View File

@ -6736,15 +6736,20 @@ qemuMonitorJSONNBDServerStart(qemuMonitorPtr mon,
int
qemuMonitorJSONNBDServerAdd(qemuMonitorPtr mon,
const char *deviceID,
bool writable)
const char *export,
bool writable,
const char *bitmap)
{
int ret = -1;
virJSONValuePtr cmd;
virJSONValuePtr reply = NULL;
/* Note: bitmap must be NULL if QEMU_CAPS_NBD_BITMAP is lacking */
if (!(cmd = qemuMonitorJSONMakeCommand("nbd-server-add",
"s:device", deviceID,
"S:name", export,
"b:writable", writable,
"S:bitmap", bitmap,
NULL)))
return ret;

4
src/qemu/qemu_monitor_json.h
View File

@ -463,7 +463,9 @@ int qemuMonitorJSONNBDServerStart(qemuMonitorPtr mon,
const char *tls_alias);
int qemuMonitorJSONNBDServerAdd(qemuMonitorPtr mon,
const char *deviceID,
bool writable);
const char *export,
bool writable,
const char *bitmap);
int qemuMonitorJSONNBDServerStop(qemuMonitorPtr mon);
int qemuMonitorJSONGetTPMModels(qemuMonitorPtr mon,
char ***tpmmodels)

2
tests/qemumonitorjsontest.c
View File

@ -1331,7 +1331,7 @@ GEN_TEST_FUNC(qemuMonitorJSONBlockCommit, "vdb", "/foo/bar1", "/foo/bar2", "back
GEN_TEST_FUNC(qemuMonitorJSONDrivePivot, "vdb")
GEN_TEST_FUNC(qemuMonitorJSONScreendump, "devicename", 1, "/foo/bar")
GEN_TEST_FUNC(qemuMonitorJSONOpenGraphics, "spice", "spicefd", false)
GEN_TEST_FUNC(qemuMonitorJSONNBDServerAdd, "vda", true)
GEN_TEST_FUNC(qemuMonitorJSONNBDServerAdd, "vda", "export", true, "bitmap")
GEN_TEST_FUNC(qemuMonitorJSONDetachCharDev, "serial1")
GEN_TEST_FUNC(qemuMonitorJSONBlockdevTrayOpen, "foodev", true)
GEN_TEST_FUNC(qemuMonitorJSONBlockdevTrayClose, "foodev")