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https://gitlab.com/libvirt/libvirt.git
synced 2024-07-31 22:17:17 +00:00
qemu: Introduce qemuBuildChrDeviceStr
The function being introduced is responsible for creating command line argument for '-device' for given character device. Based on the chardev type, it calls appropriate qemuBuild.*ChrDeviceStr(), e.g. qemuBuildSerialChrDeviceStr() for serial chardev and so on.
This commit is contained in:
Michal Privoznik
parent
2a9a5bef97
commit
f293d76333
@ -6596,6 +6596,21 @@ cleanup:
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return ret;
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}
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static int
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qemuBuildChrDeviceCommandLine(virCommandPtr cmd,
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virDomainDefPtr def,
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virDomainChrDefPtr chr,
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virQEMUCapsPtr qemuCaps)
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{
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char *devstr = NULL;
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if (qemuBuildChrDeviceStr(&devstr, def, chr, qemuCaps) < 0)
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return -1;
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virCommandAddArgList(cmd, "-device", devstr, NULL);
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return 0;
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}
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qemuBuildCommandLineCallbacks buildCommandLineCallbacks = {
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.qemuGetSCSIDeviceSgName = virSCSIDeviceGetSgName,
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};
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@ -7675,13 +7690,8 @@ qemuBuildCommandLine(virConnectPtr conn,
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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virCommandAddArg(cmd, "-device");
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if (!(devstr = qemuBuildChrDeviceStr(serial, qemuCaps,
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def->os.arch,
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def->os.machine)))
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if (qemuBuildChrDeviceCommandLine(cmd, def, serial, qemuCaps) < 0)
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goto error;
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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} else {
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virCommandAddArg(cmd, "-serial");
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if (!(devstr = qemuBuildChrArgStr(&serial->source, NULL)))
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@ -7712,10 +7722,8 @@ qemuBuildCommandLine(virConnectPtr conn,
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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virCommandAddArg(cmd, "-device");
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virCommandAddArgFormat(cmd, "isa-parallel,chardev=char%s,id=%s",
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parallel->info.alias,
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parallel->info.alias);
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if (qemuBuildChrDeviceCommandLine(cmd, def, parallel, qemuCaps) < 0)
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goto error;
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} else {
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virCommandAddArg(cmd, "-parallel");
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if (!(devstr = qemuBuildChrArgStr(¶llel->source, NULL)))
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@ -7729,8 +7737,6 @@ qemuBuildCommandLine(virConnectPtr conn,
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for (i = 0; i < def->nchannels; i++) {
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virDomainChrDefPtr channel = def->channels[i];
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char *devstr;
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char *addr;
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int port;
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switch (channel->targetType) {
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
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@ -7749,17 +7755,10 @@ qemuBuildCommandLine(virConnectPtr conn,
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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addr = virSocketAddrFormat(channel->target.addr);
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if (!addr)
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if (qemuBuildChrDeviceStr(&devstr, def, channel, qemuCaps) < 0)
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goto error;
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port = virSocketAddrGetPort(channel->target.addr);
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virCommandAddArg(cmd, "-netdev");
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virCommandAddArgFormat(cmd,
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"user,guestfwd=tcp:%s:%i,chardev=char%s,id=user-%s",
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addr, port, channel->info.alias,
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channel->info.alias);
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VIR_FREE(addr);
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virCommandAddArgList(cmd, "-netdev", devstr, NULL);
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VIR_FREE(devstr);
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break;
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
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@ -7785,12 +7784,8 @@ qemuBuildCommandLine(virConnectPtr conn,
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VIR_FREE(devstr);
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}
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virCommandAddArg(cmd, "-device");
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if (!(devstr = qemuBuildVirtioSerialPortDevStr(channel,
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qemuCaps)))
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if (qemuBuildChrDeviceCommandLine(cmd, def, channel, qemuCaps) < 0)
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goto error;
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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break;
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}
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}
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@ -7822,11 +7817,8 @@ qemuBuildCommandLine(virConnectPtr conn,
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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virCommandAddArg(cmd, "-device");
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if (!(devstr = qemuBuildSclpDevStr(console)))
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if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
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goto error;
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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break;
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
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@ -7844,12 +7836,8 @@ qemuBuildCommandLine(virConnectPtr conn,
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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virCommandAddArg(cmd, "-device");
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if (!(devstr = qemuBuildVirtioSerialPortDevStr(console,
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qemuCaps)))
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if (qemuBuildChrDeviceCommandLine(cmd, def, console, qemuCaps) < 0)
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goto error;
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virCommandAddArg(cmd, devstr);
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VIR_FREE(devstr);
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break;
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
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@ -8538,11 +8526,12 @@ error:
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/* This function generates the correct '-device' string for character
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* devices of each architecture.
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*/
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char *
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qemuBuildChrDeviceStr(virDomainChrDefPtr serial,
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virQEMUCapsPtr qemuCaps,
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virArch arch,
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char *machine)
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static int
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qemuBuildSerialChrDeviceStr(char **deviceStr,
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virDomainChrDefPtr serial,
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virQEMUCapsPtr qemuCaps,
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virArch arch,
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char *machine)
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{
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virBuffer cmd = VIR_BUFFER_INITIALIZER;
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@ -8574,7 +8563,7 @@ qemuBuildChrDeviceStr(virDomainChrDefPtr serial,
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}
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if (qemuBuildDeviceAddressStr(&cmd, &serial->info, qemuCaps) < 0)
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goto error;
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goto error;
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}
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}
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@ -8583,13 +8572,136 @@ qemuBuildChrDeviceStr(virDomainChrDefPtr serial,
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goto error;
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}
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return virBufferContentAndReset(&cmd);
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*deviceStr = virBufferContentAndReset(&cmd);
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return 0;
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error:
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error:
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virBufferFreeAndReset(&cmd);
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return NULL;
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return -1;
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}
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static int
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qemuBuildParallelChrDeviceStr(char **deviceStr,
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virDomainChrDefPtr chr)
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{
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if (virAsprintf(deviceStr, "isa-parallel,chardev=char%s,id=%s",
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chr->info.alias, chr->info.alias) < 0) {
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virReportOOMError();
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return -1;
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}
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return 0;
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}
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static int
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qemuBuildChannelChrDeviceStr(char **deviceStr,
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virDomainChrDefPtr chr,
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virQEMUCapsPtr qemuCaps)
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{
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int ret = -1;
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char *addr = NULL;
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int port;
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switch ((enum virDomainChrChannelTargetType) chr->targetType) {
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_GUESTFWD:
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addr = virSocketAddrFormat(chr->target.addr);
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if (!addr)
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return ret;
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port = virSocketAddrGetPort(chr->target.addr);
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if (virAsprintf(deviceStr,
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"user,guestfwd=tcp:%s:%i,chardev=char%s,id=user-%s",
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addr, port, chr->info.alias, chr->info.alias) < 0) {
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virReportOOMError();
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goto cleanup;
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}
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break;
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_VIRTIO:
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if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(chr, qemuCaps)))
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goto cleanup;
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break;
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_NONE:
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case VIR_DOMAIN_CHR_CHANNEL_TARGET_TYPE_LAST:
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return ret;
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}
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ret = 0;
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cleanup:
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VIR_FREE(addr);
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return ret;
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}
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static int
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qemuBuildConsoleChrDeviceStr(char **deviceStr,
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virDomainChrDefPtr chr,
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virQEMUCapsPtr qemuCaps)
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{
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int ret = -1;
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switch ((enum virDomainChrConsoleTargetType) chr->targetType) {
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLP:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SCLPLM:
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if (!(*deviceStr = qemuBuildSclpDevStr(chr)))
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goto cleanup;
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break;
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_VIRTIO:
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if (!(*deviceStr = qemuBuildVirtioSerialPortDevStr(chr, qemuCaps)))
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goto cleanup;
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break;
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_NONE:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_XEN:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_UML:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_OPENVZ:
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case VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LAST:
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break;
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}
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ret = 0;
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cleanup:
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return ret;
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}
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int
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qemuBuildChrDeviceStr(char **deviceStr,
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virDomainDefPtr vmdef,
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virDomainChrDefPtr chr,
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virQEMUCapsPtr qemuCaps)
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{
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int ret = -1;
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switch ((enum virDomainChrDeviceType) chr->deviceType) {
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case VIR_DOMAIN_CHR_DEVICE_TYPE_SERIAL:
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ret = qemuBuildSerialChrDeviceStr(deviceStr, chr, qemuCaps,
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vmdef->os.arch,
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vmdef->os.machine);
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break;
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case VIR_DOMAIN_CHR_DEVICE_TYPE_PARALLEL:
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ret = qemuBuildParallelChrDeviceStr(deviceStr, chr);
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break;
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case VIR_DOMAIN_CHR_DEVICE_TYPE_CHANNEL:
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ret = qemuBuildChannelChrDeviceStr(deviceStr, chr, qemuCaps);
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break;
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case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
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ret = qemuBuildConsoleChrDeviceStr(deviceStr, chr, qemuCaps);
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break;
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case VIR_DOMAIN_CHR_DEVICE_TYPE_LAST:
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return ret;
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}
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return ret;
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}
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/*
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* This method takes a string representing a QEMU command line ARGV set
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* optionally prefixed by a list of environment variables. It then tries
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@ -75,12 +75,12 @@ virCommandPtr qemuBuildCommandLine(virConnectPtr conn,
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qemuBuildCommandLineCallbacksPtr callbacks)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(11);
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/* Generate string for arch-specific '-device' parameter */
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char *
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qemuBuildChrDeviceStr (virDomainChrDefPtr serial,
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virQEMUCapsPtr qemuCaps,
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virArch arch,
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char *machine);
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/* Generate '-device' string for chardev device */
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int
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qemuBuildChrDeviceStr(char **deviceStr,
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virDomainDefPtr vmdef,
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virDomainChrDefPtr chr,
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virQEMUCapsPtr qemuCaps);
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/* With vlan == -1, use netdev syntax, else old hostnet */
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char * qemuBuildHostNetStr(virDomainNetDefPtr net,
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