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QEMU has a monitor command 'set_cpu' which allows a specific CPU to be toggled between online& offline state. libvirt CPU hotplug does not work in terms of individual indexes CPUs. Thus to support this, we iteratively toggle the online state when the total number of vCPUs is adjusted via libvirt NB, currently untested since QEMU segvs when running this! * src/qemu/qemu_driver.c: Toggle online state for CPUs when doing hotplug * src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h, src/qemu/qemu_monitor_json.c, src/qemu/qemu_monitor_json.h, src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h: Add monitor API for toggling a CPU's online status via 'set_cpu
176 lines
7.0 KiB
C
176 lines
7.0 KiB
C
/*
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* qemu_monitor_json.h: interaction with QEMU monitor console
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*
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* Copyright (C) 2006-2009 Red Hat, Inc.
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef QEMU_MONITOR_JSON_H
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#define QEMU_MONITOR_JSON_H
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#include "internal.h"
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#include "qemu_monitor.h"
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int qemuMonitorJSONIOProcess(qemuMonitorPtr mon,
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const char *data,
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size_t len,
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qemuMonitorMessagePtr msg);
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int qemuMonitorJSONSetCapabilities(qemuMonitorPtr mon);
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int qemuMonitorJSONStartCPUs(qemuMonitorPtr mon,
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virConnectPtr conn);
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int qemuMonitorJSONStopCPUs(qemuMonitorPtr mon);
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int qemuMonitorJSONSystemPowerdown(qemuMonitorPtr mon);
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int qemuMonitorJSONGetCPUInfo(qemuMonitorPtr mon,
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int **pids);
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int qemuMonitorJSONGetBalloonInfo(qemuMonitorPtr mon,
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unsigned long *currmem);
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int qemuMonitorJSONGetBlockStatsInfo(qemuMonitorPtr mon,
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const char *devname,
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long long *rd_req,
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long long *rd_bytes,
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long long *wr_req,
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long long *wr_bytes,
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long long *errs);
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int qemuMonitorJSONSetVNCPassword(qemuMonitorPtr mon,
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const char *password);
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int qemuMonitorJSONSetBalloon(qemuMonitorPtr mon,
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unsigned long newmem);
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int qemuMonitorJSONSetCPU(qemuMonitorPtr mon, int cpu, int online);
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int qemuMonitorJSONEjectMedia(qemuMonitorPtr mon,
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const char *devname);
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int qemuMonitorJSONChangeMedia(qemuMonitorPtr mon,
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const char *devname,
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const char *newmedia,
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const char *format);
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int qemuMonitorJSONSaveVirtualMemory(qemuMonitorPtr mon,
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unsigned long long offset,
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size_t length,
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const char *path);
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int qemuMonitorJSONSavePhysicalMemory(qemuMonitorPtr mon,
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unsigned long long offset,
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size_t length,
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const char *path);
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int qemuMonitorJSONSetMigrationSpeed(qemuMonitorPtr mon,
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unsigned long bandwidth);
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int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon,
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int *status,
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unsigned long long *transferred,
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unsigned long long *remaining,
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unsigned long long *total);
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int qemuMonitorJSONMigrateToHost(qemuMonitorPtr mon,
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int background,
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const char *hostname,
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int port);
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int qemuMonitorJSONMigrateToCommand(qemuMonitorPtr mon,
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int background,
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const char * const *argv,
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const char *target);
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int qemuMonitorJSONMigrateToUnix(qemuMonitorPtr mon,
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int background,
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const char *unixfile);
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int qemuMonitorJSONMigrateCancel(qemuMonitorPtr mon);
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int qemuMonitorJSONAddUSBDisk(qemuMonitorPtr mon,
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const char *path);
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int qemuMonitorJSONAddUSBDeviceExact(qemuMonitorPtr mon,
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int bus,
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int dev);
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int qemuMonitorJSONAddUSBDeviceMatch(qemuMonitorPtr mon,
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int vendor,
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int product);
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int qemuMonitorJSONAddPCIHostDevice(qemuMonitorPtr mon,
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virDomainDevicePCIAddress *hostAddr,
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virDomainDevicePCIAddress *guestAddr);
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int qemuMonitorJSONAddPCIDisk(qemuMonitorPtr mon,
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const char *path,
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const char *bus,
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virDomainDevicePCIAddress *guestAddr);
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int qemuMonitorJSONAddPCINetwork(qemuMonitorPtr mon,
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const char *nicstr,
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virDomainDevicePCIAddress *guestAddr);
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int qemuMonitorJSONRemovePCIDevice(qemuMonitorPtr mon,
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virDomainDevicePCIAddress *guestAddr);
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int qemuMonitorJSONSendFileHandle(qemuMonitorPtr mon,
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const char *fdname,
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int fd);
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int qemuMonitorJSONCloseFileHandle(qemuMonitorPtr mon,
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const char *fdname);
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int qemuMonitorJSONAddHostNetwork(qemuMonitorPtr mon,
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const char *netstr);
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int qemuMonitorJSONRemoveHostNetwork(qemuMonitorPtr mon,
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int vlan,
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const char *netname);
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int qemuMonitorJSONGetPtyPaths(qemuMonitorPtr mon,
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virHashTablePtr paths);
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int qemuMonitorJSONAttachPCIDiskController(qemuMonitorPtr mon,
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const char *bus,
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virDomainDevicePCIAddress *guestAddr);
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int qemuMonitorJSONAttachDrive(qemuMonitorPtr mon,
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const char *drivestr,
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virDomainDevicePCIAddress *controllerAddr,
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virDomainDeviceDriveAddress *driveAddr);
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int qemuMonitorJSONGetAllPCIAddresses(qemuMonitorPtr mon,
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qemuMonitorPCIAddress **addrs);
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int qemuMonitorJSONAddDevice(qemuMonitorPtr mon,
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const char *devicestr);
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int qemuMonitorJSONDelDevice(qemuMonitorPtr mon,
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const char *devicestr);
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int qemuMonitorJSONAddDrive(qemuMonitorPtr mon,
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const char *drivestr);
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int qemuMonitorJSONSetDrivePassphrase(qemuMonitorPtr mon,
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const char *alias,
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const char *passphrase);
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#endif /* QEMU_MONITOR_JSON_H */
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