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libvirt/src/qemu/qemu_conf.h
KAMEZAWA Hiroyuki 95a17abda7 add compression support for "virsh dump" 
Add dump_image_format[] to qemu.conf and support compressed dump
at virsh dump. coredump compression is important for saving disk space
in an environment where multiple guests run.

In general, "disk space for dump" is specially allocated and will be
a dead space in the system. It's used only at emergency. So, it's better
to have both of save_image_format and dump_image_format. "save" is done
in scheduled manner with enough calculated disk space for it.

This code reuses some of save_image_format[] and supports the same format.

Changelog:
 - modified libvirtd_qemu.aug
 - modified test_libvirtd_qemu.aug
 - fixed error handling of qemudSaveCompressionTypeFromString()
2010-10-29 10:04:34 -06:00

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/*
* qemu_conf.h: QEMU configuration management
*
* Copyright (C) 2006-2007, 2009-2010 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef __QEMUD_CONF_H
# define __QEMUD_CONF_H
# include <config.h>
# include "ebtables.h"
# include "internal.h"
# include "bridge.h"
# include "capabilities.h"
# include "network_conf.h"
# include "domain_conf.h"
# include "domain_event.h"
# include "threads.h"
# include "security/security_driver.h"
# include "cgroup.h"
# include "pci.h"
# include "cpu_conf.h"
# include "driver.h"
# include "bitmap.h"
# define qemudDebug(fmt, ...) do {} while(0)
# define QEMUD_CPUMASK_LEN CPU_SETSIZE
/* Internal flags to keep track of qemu command line capabilities */
enum qemud_cmd_flags {
QEMUD_CMD_FLAG_KQEMU = (1 << 0), /* Whether KQEMU is compiled in */
QEMUD_CMD_FLAG_VNC_COLON = (1 << 1), /* Does the VNC take just port, or address + display */
QEMUD_CMD_FLAG_NO_REBOOT = (1 << 2), /* Is the -no-reboot flag available */
QEMUD_CMD_FLAG_DRIVE = (1 << 3), /* Is the new -drive arg available */
QEMUD_CMD_FLAG_DRIVE_BOOT = (1 << 4), /* Does -drive support boot=on */
QEMUD_CMD_FLAG_NAME = (1 << 5), /* Is the -name flag available */
QEMUD_CMD_FLAG_UUID = (1 << 6), /* Is the -uuid flag available */
QEMUD_CMD_FLAG_DOMID = (1 << 7), /* Xenner only, special -domid flag available */
QEMUD_CMD_FLAG_VNET_HDR = (1 << 8),
QEMUD_CMD_FLAG_MIGRATE_KVM_STDIO = (1 << 9), /* Original migration code from KVM. Also had tcp, but we can't use that
* since it had a design bug blocking the entire monitor console */
QEMUD_CMD_FLAG_MIGRATE_QEMU_TCP = (1 << 10), /* New migration syntax after merge to QEMU with TCP transport */
QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC = (1 << 11), /* New migration syntax after merge to QEMU with EXEC transport */
QEMUD_CMD_FLAG_DRIVE_CACHE_V2 = (1 << 12), /* Is the cache= flag wanting new v2 values */
QEMUD_CMD_FLAG_KVM = (1 << 13), /* Whether KVM is compiled in */
QEMUD_CMD_FLAG_DRIVE_FORMAT = (1 << 14), /* Is -drive format= avail */
QEMUD_CMD_FLAG_VGA = (1 << 15), /* Is -vga avail */
/* features added in qemu-0.10.0 or later */
QEMUD_CMD_FLAG_0_10 = (1 << 16),
QEMUD_CMD_FLAG_NET_NAME = QEMUD_CMD_FLAG_0_10, /* -net ...,name=str */
QEMUD_CMD_FLAG_HOST_NET_ADD = QEMUD_CMD_FLAG_0_10, /* host_net_add monitor command */
QEMUD_CMD_FLAG_PCIDEVICE = (1 << 17), /* PCI device assignment only supported by qemu-kvm */
QEMUD_CMD_FLAG_MEM_PATH = (1 << 18), /* mmap'ped guest backing supported */
QEMUD_CMD_FLAG_DRIVE_SERIAL = (1 << 19), /* -driver serial= available */
QEMUD_CMD_FLAG_XEN_DOMID = (1 << 20), /* -xen-domid (new style xen integration) */
QEMUD_CMD_FLAG_MIGRATE_QEMU_UNIX = (1 << 21), /* Does qemu support unix domain sockets for migration? */
QEMUD_CMD_FLAG_CHARDEV = (1 << 22), /* Is the new -chardev arg available */
QEMUD_CMD_FLAG_ENABLE_KVM = (1 << 23), /* Is the -enable-kvm flag available to "enable KVM full virtualization support" */
QEMUD_CMD_FLAG_MONITOR_JSON = (1 << 24), /* JSON mode for monitor */
QEMUD_CMD_FLAG_BALLOON = (1 << 25), /* -balloon available */
QEMUD_CMD_FLAG_DEVICE = (1 << 26), /* Is the new -device arg available */
QEMUD_CMD_FLAG_SDL = (1 << 27), /* Is the new -sdl arg available */
QEMUD_CMD_FLAG_SMP_TOPOLOGY = (1 << 28), /* Is sockets=s,cores=c,threads=t available for -smp? */
QEMUD_CMD_FLAG_NETDEV = (1 << 29), /* The -netdev flag & netdev_add/remove monitor commands */
QEMUD_CMD_FLAG_RTC = (1 << 30), /* The -rtc flag for clock options */
QEMUD_CMD_FLAG_VNET_HOST = (1LL << 31), /* vnet-host support is available in qemu */
QEMUD_CMD_FLAG_RTC_TD_HACK = (1LL << 32), /* -rtc-td-hack available */
QEMUD_CMD_FLAG_NO_HPET = (1LL << 33), /* -no-hpet flag is supported */
QEMUD_CMD_FLAG_NO_KVM_PIT = (1LL << 34), /* -no-kvm-pit-reinjection supported */
QEMUD_CMD_FLAG_TDF = (1LL << 35), /* -tdf flag (user-mode pit catchup) */
QEMUD_CMD_FLAG_PCI_CONFIGFD = (1LL << 36), /* pci-assign.configfd */
QEMUD_CMD_FLAG_NODEFCONFIG = (1LL << 37), /* -nodefconfig */
QEMUD_CMD_FLAG_BOOT_MENU = (1LL << 38), /* -boot menu=on support */
QEMUD_CMD_FLAG_ENABLE_KQEMU = (1LL << 39), /* -enable-kqemu flag */
QEMUD_CMD_FLAG_FSDEV = (1LL << 40), /* -fstype filesystem passthrough */
QEMUD_CMD_FLAG_NESTING = (1LL << 41), /* -enable-nesting (SVM/VMX) */
QEMUD_CMD_FLAG_NAME_PROCESS = (1LL << 42), /* Is -name process= available */
QEMUD_CMD_FLAG_DRIVE_READONLY = (1LL << 43), /* -drive readonly=on|off */
};
/* Main driver state */
struct qemud_driver {
virMutex lock;
int privileged;
uid_t user;
gid_t group;
int dynamicOwnership;
unsigned int qemuVersion;
int nextvmid;
virCgroupPtr cgroup;
int cgroupControllers;
char **cgroupDeviceACL;
virDomainObjList domains;
brControl *brctl;
/* These four directories are ones libvirtd uses (so must be root:root
* to avoid security risk from QEMU processes */
char *configDir;
char *autostartDir;
char *logDir;
char *stateDir;
/* These two directories are ones QEMU processes use (so must match
* the QEMU user/group */
char *libDir;
char *cacheDir;
char *saveDir;
char *snapshotDir;
unsigned int vncTLS : 1;
unsigned int vncTLSx509verify : 1;
unsigned int vncSASL : 1;
char *vncTLSx509certdir;
char *vncListen;
char *vncPassword;
char *vncSASLdir;
char *hugetlbfs_mount;
char *hugepage_path;
unsigned int macFilter : 1;
ebtablesContext *ebtables;
unsigned int relaxedACS : 1;
unsigned int vncAllowHostAudio : 1;
unsigned int clearEmulatorCapabilities : 1;
unsigned int allowDiskFormatProbing : 1;
unsigned int setProcessName : 1;
virCapsPtr caps;
/* An array of callbacks */
virDomainEventCallbackListPtr domainEventCallbacks;
virDomainEventQueuePtr domainEventQueue;
int domainEventTimer;
int domainEventDispatching;
char *securityDriverName;
virSecurityDriverPtr securityDriver;
virSecurityDriverPtr securityPrimaryDriver;
virSecurityDriverPtr securitySecondaryDriver;
char *saveImageFormat;
char *dumpImageFormat;
pciDeviceList *activePciHostdevs;
virBitmapPtr reservedVNCPorts;
};
typedef struct _qemuDomainPCIAddressSet qemuDomainPCIAddressSet;
typedef qemuDomainPCIAddressSet *qemuDomainPCIAddressSetPtr;
typedef struct _qemuDomainCmdlineDef qemuDomainCmdlineDef;
typedef qemuDomainCmdlineDef *qemuDomainCmdlineDefPtr;
struct _qemuDomainCmdlineDef {
unsigned int num_args;
char **args;
unsigned int num_env;
char **env_name;
char **env_value;
};
/* Port numbers used for KVM migration. */
# define QEMUD_MIGRATION_FIRST_PORT 49152
# define QEMUD_MIGRATION_NUM_PORTS 64
/* Config type for XML import/export conversions */
# define QEMU_CONFIG_FORMAT_ARGV "qemu-argv"
# define QEMU_DRIVE_HOST_PREFIX "drive-"
# define QEMU_VIRTIO_SERIAL_PREFIX "virtio-serial"
# define QEMU_FSDEV_HOST_PREFIX "fsdev-"
# define qemuReportError(code, ...) \
virReportErrorHelper(NULL, VIR_FROM_QEMU, code, __FILE__, \
__FUNCTION__, __LINE__, __VA_ARGS__)
int qemudLoadDriverConfig(struct qemud_driver *driver,
const char *filename);
virCapsPtr qemudCapsInit (virCapsPtr old_caps);
int qemudExtractVersion (struct qemud_driver *driver);
int qemudExtractVersionInfo (const char *qemu,
unsigned int *version,
unsigned long long *qemuCmdFlags);
int qemudParseHelpStr (const char *qemu,
const char *str,
unsigned long long *qemuCmdFlags,
unsigned int *version,
unsigned int *is_kvm,
unsigned int *kvm_version);
int qemudBuildCommandLine (virConnectPtr conn,
struct qemud_driver *driver,
virDomainDefPtr def,
virDomainChrDefPtr monitor_chr,
int monitor_json,
unsigned long long qemuCmdFlags,
const char ***retargv,
const char ***retenv,
int **vmfds,
int *nvmfds,
const char *migrateFrom,
virDomainSnapshotObjPtr current_snapshot)
ATTRIBUTE_NONNULL(1);
/* With vlan == -1, use netdev syntax, else old hostnet */
char * qemuBuildHostNetStr(virDomainNetDefPtr net,
char type_sep,
int vlan,
const char *tapfd,
const char *vhostfd);
/* Legacy, pre device support */
char * qemuBuildNicStr(virDomainNetDefPtr net,
const char *prefix,
int vlan);
/* Current, best practice */
char * qemuBuildNicDevStr(virDomainNetDefPtr net,
int vlan);
char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk,
unsigned long long qemudCmdFlags);
/* Both legacy & current support */
char *qemuBuildDriveStr(virDomainDiskDefPtr disk,
int bootable,
unsigned long long qemuCmdFlags);
char *qemuBuildFSStr(virDomainFSDefPtr fs,
unsigned long long qemuCmdFlags);
/* Current, best practice */
char * qemuBuildDriveDevStr(virDomainDiskDefPtr disk);
char * qemuBuildFSDevStr(virDomainFSDefPtr fs);
/* Current, best practice */
char * qemuBuildControllerDevStr(virDomainControllerDefPtr def);
char * qemuBuildWatchdogDevStr(virDomainWatchdogDefPtr dev);
char * qemuBuildMemballoonDevStr(virDomainMemballoonDefPtr dev);
char * qemuBuildUSBInputDevStr(virDomainInputDefPtr dev);
char * qemuBuildSoundDevStr(virDomainSoundDefPtr sound);
/* Legacy, pre device support */
char * qemuBuildPCIHostdevPCIDevStr(virDomainHostdevDefPtr dev);
/* Current, best practice */
char * qemuBuildPCIHostdevDevStr(virDomainHostdevDefPtr dev,
const char *configfd);
int qemudOpenPCIConfig(virDomainHostdevDefPtr dev);
/* Current, best practice */
char * qemuBuildChrChardevStr(virDomainChrDefPtr dev);
/* Legacy, pre device support */
char * qemuBuildChrArgStr(virDomainChrDefPtr dev, const char *prefix);
char * qemuBuildVirtioSerialPortDevStr(virDomainChrDefPtr dev);
/* Legacy, pre device support */
char * qemuBuildUSBHostdevUsbDevStr(virDomainHostdevDefPtr dev);
/* Current, best practice */
char * qemuBuildUSBHostdevDevStr(virDomainHostdevDefPtr dev);
int qemudNetworkIfaceConnect (virConnectPtr conn,
struct qemud_driver *driver,
virDomainNetDefPtr net,
unsigned long long qemuCmdFlags)
ATTRIBUTE_NONNULL(1);
int
qemudOpenVhostNet(virDomainNetDefPtr net,
unsigned long long qemuCmdFlags);
int qemudPhysIfaceConnect(virConnectPtr conn,
struct qemud_driver *driver,
virDomainNetDefPtr net,
unsigned long long qemuCmdFlags,
const unsigned char *vmuuid);
int qemudProbeMachineTypes (const char *binary,
virCapsGuestMachinePtr **machines,
int *nmachines);
int qemudProbeCPUModels (const char *qemu,
unsigned long long qemuCmdFlags,
const char *arch,
unsigned int *count,
const char ***cpus);
int qemudCanonicalizeMachine (struct qemud_driver *driver,
virDomainDefPtr def);
virDomainDefPtr qemuParseCommandLine(virCapsPtr caps,
const char **progenv,
const char **progargv);
virDomainDefPtr qemuParseCommandLineString(virCapsPtr caps,
const char *args);
qemuDomainPCIAddressSetPtr qemuDomainPCIAddressSetCreate(virDomainDefPtr def);
int qemuDomainPCIAddressReserveSlot(qemuDomainPCIAddressSetPtr addrs,
int slot);
int qemuDomainPCIAddressReserveAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev);
int qemuDomainPCIAddressSetNextAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev);
int qemuDomainPCIAddressEnsureAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev);
int qemuDomainPCIAddressReleaseAddr(qemuDomainPCIAddressSetPtr addrs,
virDomainDeviceInfoPtr dev);
void qemuDomainPCIAddressSetFree(qemuDomainPCIAddressSetPtr addrs);
int qemuAssignDevicePCISlots(virDomainDefPtr def, qemuDomainPCIAddressSetPtr addrs);
int qemuDomainNetVLAN(virDomainNetDefPtr def);
int qemuAssignDeviceNetAlias(virDomainDefPtr def, virDomainNetDefPtr net, int idx);
int qemuAssignDeviceDiskAlias(virDomainDiskDefPtr def, unsigned long long qemuCmdFlags);
int qemuAssignDeviceHostdevAlias(virDomainDefPtr def, virDomainHostdevDefPtr net, int idx);
int qemuAssignDeviceControllerAlias(virDomainControllerDefPtr controller);
int
qemuParseKeywords(const char *str,
char ***retkeywords,
char ***retvalues,
int allowEmptyValue);
#endif /* __QEMUD_CONF_H */
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