[PATCH v2 02/12] domain_driver: extract DetachXXXDeviceConfig related functions and use them

libxl / lxc / qemu drivers share some common codes in their DomainDetachDeviceConfig functions, so extract them to domain_driver and reuse them. Signed-off-by: Luke Yue <lukedyue(a)gmail.com&gt; --- src/hypervisor/domain_driver.c | 267 +++++++++++++++++++++++++++++++++ src/hypervisor/domain_driver.h | 41 +++++ src/libvirt_private.syms | 14 ++ src/libxl/libxl_driver.c | 41 +---- src/lxc/lxc_driver.c | 37 +---- src/qemu/qemu_driver.c | 123 +++------------ 6 files changed, 357 insertions(+), 166 deletions(-) diff --git a/src/hypervisor/domain_driver.c b/src/hypervisor/domain_driver.c index 2969d55173..04c12dff5b 100644 --- a/src/hypervisor/domain_driver.c +++ b/src/hypervisor/domain_driver.c @@ -512,3 +512,270 @@ virDomainDriverNodeDeviceDetachFlags(virNodeDevicePtr dev, return virHostdevPCINodeDeviceDetach(hostdevMgr, pci); } + + +int +virDomainDriverDetachDiskDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainDiskDef *disk; + virDomainDiskDef *det_disk; + + disk = dev->data.disk; + if (!(det_disk = virDomainDiskRemoveByName(vmdef, disk->dst))) { + virReportError(VIR_ERR_DEVICE_MISSING, + _("no target device %s"), disk->dst); + return -1; + } + virDomainDiskDefFree(det_disk); + + return 0; +} + + +int +virDomainDriverDetachNetDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainNetDef *net; + int idx; + + net = dev->data.net; + if ((idx = virDomainNetFindIdx(vmdef, net)) < 0) + return -1; + + /* this is guaranteed to succeed */ + virDomainNetDefFree(virDomainNetRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachSoundDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainSoundDef *sound; + int idx; + + sound = dev->data.sound; + if ((idx = virDomainSoundDefFind(vmdef, sound)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("device not present in domain configuration")); + return -1; + } + virDomainSoundDefFree(virDomainSoundDefRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachHostdevDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainHostdevDef *hostdev; + virDomainHostdevDef *det_hostdev; + int idx; + + hostdev = dev->data.hostdev; + if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("device not present in domain configuration")); + return -1; + } + virDomainHostdevRemove(vmdef, idx); + virDomainHostdevDefFree(det_hostdev); + + return 0; +} + + +int +virDomainDriverDetachLeaseDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainLeaseDef *lease; + virDomainLeaseDef *det_lease; + + lease = dev->data.lease; + if (!(det_lease = virDomainLeaseRemove(vmdef, lease))) { + virReportError(VIR_ERR_DEVICE_MISSING, + _("Lease %s in lockspace %s does not exist"), + lease->key, NULLSTR(lease->lockspace)); + return -1; + } + virDomainLeaseDefFree(det_lease); + + return 0; +} + + +int +virDomainDriverDetachControllerDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainControllerDef *cont; + virDomainControllerDef *det_cont; + int idx; + + cont = dev->data.controller; + if ((idx = virDomainControllerFind(vmdef, cont->type, + cont->idx)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("device not present in domain configuration")); + return -1; + } + det_cont = virDomainControllerRemove(vmdef, idx); + virDomainControllerDefFree(det_cont); + + return 0; +} + + +int +virDomainDriverDetachFSDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainFSDef *fs; + int idx; + + fs = dev->data.fs; + idx = virDomainFSIndexByName(vmdef, fs->dst); + if (idx < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("no matching filesystem device was found")); + return -1; + } + + fs = virDomainFSRemove(vmdef, idx); + virDomainFSDefFree(fs); + + return 0; +} + + +int +virDomainDriverDetachRNGDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + int idx; + + if ((idx = virDomainRNGFind(vmdef, dev->data.rng)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("no matching RNG device was found")); + return -1; + } + + virDomainRNGDefFree(virDomainRNGRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachMemoryDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + virDomainMemoryDef *mem; + int idx; + + if ((idx = virDomainMemoryFindInactiveByDef(vmdef, + dev->data.memory)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("matching memory device was not found")); + return -1; + } + mem = virDomainMemoryRemove(vmdef, idx); + vmdef->mem.cur_balloon -= mem->size; + virDomainMemoryDefFree(mem); + + return 0; +} + + +int +virDomainDriverDetachRedirdevDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + int idx; + + if ((idx = virDomainRedirdevDefFind(vmdef, + dev->data.redirdev)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("no matching redirdev was not found")); + return -1; + } + + virDomainRedirdevDefFree(virDomainRedirdevDefRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachShmemDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + int idx; + + if ((idx = virDomainShmemDefFind(vmdef, dev->data.shmem)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("matching shmem device was not found")); + return -1; + } + + virDomainShmemDefFree(virDomainShmemDefRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachWatchdogDeviceConfig(virDomainDef *vmdef) +{ + if (!vmdef->watchdog) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("domain has no watchdog")); + return -1; + } + virDomainWatchdogDefFree(vmdef->watchdog); + vmdef->watchdog = NULL; + + return 0; +} + + +int +virDomainDriverDetachInputDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + int idx; + + if ((idx = virDomainInputDefFind(vmdef, dev->data.input)) < 0) { + virReportError(VIR_ERR_DEVICE_MISSING, "%s", + _("matching input device not found")); + return -1; + } + + virDomainInputDefFree(virDomainInputDefRemove(vmdef, idx)); + + return 0; +} + + +int +virDomainDriverDetachVsockDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev) +{ + if (!vmdef->vsock || + !virDomainVsockDefEquals(dev->data.vsock, vmdef->vsock)) { + virReportError(VIR_ERR_OPERATION_FAILED, "%s", + _("matching vsock device not found")); + return -1; + } + virDomainVsockDefFree(vmdef->vsock); + vmdef->vsock = NULL; + + return 0; +} diff --git a/src/hypervisor/domain_driver.h b/src/hypervisor/domain_driver.h index 5970eef082..9c089f17cc 100644 --- a/src/hypervisor/domain_driver.h +++ b/src/hypervisor/domain_driver.h @@ -60,3 +60,44 @@ int virDomainDriverNodeDeviceReAttach(virNodeDevicePtr dev, int virDomainDriverNodeDeviceDetachFlags(virNodeDevicePtr dev, virHostdevManager *hostdevMgr, const char *driverName); + +int virDomainDriverDetachDiskDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachNetDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachSoundDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachHostdevDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachLeaseDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachControllerDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachFSDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachRNGDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachMemoryDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachRedirdevDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachShmemDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachWatchdogDeviceConfig(virDomainDef *vmdef); + +int virDomainDriverDetachInputDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); + +int virDomainDriverDetachVsockDeviceConfig(virDomainDef *vmdef, + virDomainDeviceDef *dev); diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index f74291cb06..9cf12779bf 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1534,6 +1534,20 @@ virDomainCgroupSetupMemtune; # hypervisor/domain_driver.h +virDomainDriverDetachControllerDeviceConfig; +virDomainDriverDetachDiskDeviceConfig; +virDomainDriverDetachFSDeviceConfig; +virDomainDriverDetachHostdevDeviceConfig; +virDomainDriverDetachInputDeviceConfig; +virDomainDriverDetachLeaseDeviceConfig; +virDomainDriverDetachMemoryDeviceConfig; +virDomainDriverDetachNetDeviceConfig; +virDomainDriverDetachRedirdevDeviceConfig; +virDomainDriverDetachRNGDeviceConfig; +virDomainDriverDetachShmemDeviceConfig; +virDomainDriverDetachSoundDeviceConfig; +virDomainDriverDetachVsockDeviceConfig; +virDomainDriverDetachWatchdogDeviceConfig; virDomainDriverGenerateMachineName; virDomainDriverGenerateRootHash; virDomainDriverMergeBlkioDevice; diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 6a3938ead4..a794fe8f14 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -3916,56 +3916,29 @@ libxlDomainDetachDeviceLive(libxlDriverPrivate *driver, static int libxlDomainDetachDeviceConfig(virDomainDef *vmdef, virDomainDeviceDef *dev) { - virDomainDiskDef *disk; - virDomainDiskDef *detach; - virDomainHostdevDef *hostdev; - virDomainHostdevDef *det_hostdev; - virDomainControllerDef *cont; - virDomainControllerDef *det_cont; - virDomainNetDef *net; - int idx; - switch (dev->type) { case VIR_DOMAIN_DEVICE_DISK: - disk = dev->data.disk; - if (!(detach = virDomainDiskRemoveByName(vmdef, disk->dst))) { - virReportError(VIR_ERR_INVALID_ARG, - _("no target device %s"), disk->dst); + if (virDomainDriverDetachDiskDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainDiskDefFree(detach); + break; case VIR_DOMAIN_DEVICE_CONTROLLER: - cont = dev->data.controller; - if ((idx = virDomainControllerFind(vmdef, cont->type, - cont->idx)) < 0) { - virReportError(VIR_ERR_INVALID_ARG, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachControllerDeviceConfig(vmdef, dev) < 0) return -1; - } - det_cont = virDomainControllerRemove(vmdef, idx); - virDomainControllerDefFree(det_cont); + break; case VIR_DOMAIN_DEVICE_NET: - net = dev->data.net; - if ((idx = virDomainNetFindIdx(vmdef, net)) < 0) + if (virDomainDriverDetachNetDeviceConfig(vmdef, dev) < 0) return -1; - /* this is guaranteed to succeed */ - virDomainNetDefFree(virDomainNetRemove(vmdef, idx)); break; case VIR_DOMAIN_DEVICE_HOSTDEV: { - hostdev = dev->data.hostdev; - if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) { - virReportError(VIR_ERR_INVALID_ARG, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachHostdevDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainHostdevRemove(vmdef, idx); - virDomainHostdevDefFree(det_hostdev); + break; } diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c index 8f2ca19f44..b8958eb6c1 100644 --- a/src/lxc/lxc_driver.c +++ b/src/lxc/lxc_driver.c @@ -3129,56 +3129,33 @@ static int lxcDomainDetachDeviceConfig(virDomainDef *vmdef, virDomainDeviceDef *dev) { - int ret = -1; - virDomainDiskDef *disk; - virDomainDiskDef *det_disk; - virDomainNetDef *net; - virDomainHostdevDef *hostdev; - virDomainHostdevDef *det_hostdev; - int idx; - switch (dev->type) { case VIR_DOMAIN_DEVICE_DISK: - disk = dev->data.disk; - if (!(det_disk = virDomainDiskRemoveByName(vmdef, disk->dst))) { - virReportError(VIR_ERR_INVALID_ARG, - _("no target device %s"), disk->dst); + if (virDomainDriverDetachDiskDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainDiskDefFree(det_disk); - ret = 0; + break; case VIR_DOMAIN_DEVICE_NET: - net = dev->data.net; - if ((idx = virDomainNetFindIdx(vmdef, net)) < 0) + if (virDomainDriverDetachNetDeviceConfig(vmdef, dev) < 0) return -1; - /* this is guaranteed to succeed */ - virDomainNetDefFree(virDomainNetRemove(vmdef, idx)); - ret = 0; break; case VIR_DOMAIN_DEVICE_HOSTDEV: { - hostdev = dev->data.hostdev; - if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) { - virReportError(VIR_ERR_INVALID_ARG, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachHostdevDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainHostdevRemove(vmdef, idx); - virDomainHostdevDefFree(det_hostdev); - ret = 0; + break; } default: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("persistent detach of device is not supported")); - break; + return -1; } - return ret; + return 0; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index c008921582..727d663bad 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -7408,84 +7408,43 @@ qemuDomainDetachDeviceConfig(virDomainDef *vmdef, unsigned int parse_flags, virDomainXMLOption *xmlopt) { - virDomainDiskDef *disk; - virDomainDiskDef *det_disk; - virDomainNetDef *net; - virDomainSoundDef *sound; - virDomainHostdevDef *hostdev; - virDomainHostdevDef *det_hostdev; - virDomainLeaseDef *lease; - virDomainLeaseDef *det_lease; - virDomainControllerDef *cont; - virDomainControllerDef *det_cont; virDomainChrDef *chr; - virDomainFSDef *fs; - virDomainMemoryDef *mem; - int idx; switch ((virDomainDeviceType)dev->type) { case VIR_DOMAIN_DEVICE_DISK: - disk = dev->data.disk; - if (!(det_disk = virDomainDiskRemoveByName(vmdef, disk->dst))) { - virReportError(VIR_ERR_DEVICE_MISSING, - _("no target device %s"), disk->dst); + if (virDomainDriverDetachDiskDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainDiskDefFree(det_disk); + break; case VIR_DOMAIN_DEVICE_NET: - net = dev->data.net; - if ((idx = virDomainNetFindIdx(vmdef, net)) < 0) + if (virDomainDriverDetachNetDeviceConfig(vmdef, dev) < 0) return -1; - /* this is guaranteed to succeed */ - virDomainNetDefFree(virDomainNetRemove(vmdef, idx)); break; case VIR_DOMAIN_DEVICE_SOUND: - sound = dev->data.sound; - if ((idx = virDomainSoundDefFind(vmdef, sound)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachSoundDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainSoundDefFree(virDomainSoundDefRemove(vmdef, idx)); + break; case VIR_DOMAIN_DEVICE_HOSTDEV: { - hostdev = dev->data.hostdev; - if ((idx = virDomainHostdevFind(vmdef, hostdev, &det_hostdev)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachHostdevDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainHostdevRemove(vmdef, idx); - virDomainHostdevDefFree(det_hostdev); + break; } case VIR_DOMAIN_DEVICE_LEASE: - lease = dev->data.lease; - if (!(det_lease = virDomainLeaseRemove(vmdef, lease))) { - virReportError(VIR_ERR_DEVICE_MISSING, - _("Lease %s in lockspace %s does not exist"), - lease->key, NULLSTR(lease->lockspace)); + if (virDomainDriverDetachLeaseDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainLeaseDefFree(det_lease); + break; case VIR_DOMAIN_DEVICE_CONTROLLER: - cont = dev->data.controller; - if ((idx = virDomainControllerFind(vmdef, cont->type, - cont->idx)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("device not present in domain configuration")); + if (virDomainDriverDetachControllerDeviceConfig(vmdef, dev) < 0) return -1; - } - det_cont = virDomainControllerRemove(vmdef, idx); - virDomainControllerDefFree(det_cont); break; @@ -7497,91 +7456,51 @@ qemuDomainDetachDeviceConfig(virDomainDef *vmdef, break; case VIR_DOMAIN_DEVICE_FS: - fs = dev->data.fs; - idx = virDomainFSIndexByName(vmdef, fs->dst); - if (idx < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("no matching filesystem device was found")); + if (virDomainDriverDetachFSDeviceConfig(vmdef, dev) < 0) return -1; - } - fs = virDomainFSRemove(vmdef, idx); - virDomainFSDefFree(fs); break; case VIR_DOMAIN_DEVICE_RNG: - if ((idx = virDomainRNGFind(vmdef, dev->data.rng)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("no matching RNG device was found")); + if (virDomainDriverDetachRNGDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainRNGDefFree(virDomainRNGRemove(vmdef, idx)); break; case VIR_DOMAIN_DEVICE_MEMORY: - if ((idx = virDomainMemoryFindInactiveByDef(vmdef, - dev->data.memory)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("matching memory device was not found")); + if (virDomainDriverDetachMemoryDeviceConfig(vmdef, dev) < 0) return -1; - } - mem = virDomainMemoryRemove(vmdef, idx); - vmdef->mem.cur_balloon -= mem->size; - virDomainMemoryDefFree(mem); + break; case VIR_DOMAIN_DEVICE_REDIRDEV: - if ((idx = virDomainRedirdevDefFind(vmdef, - dev->data.redirdev)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("no matching redirdev was not found")); + if (virDomainDriverDetachRedirdevDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainRedirdevDefFree(virDomainRedirdevDefRemove(vmdef, idx)); break; case VIR_DOMAIN_DEVICE_SHMEM: - if ((idx = virDomainShmemDefFind(vmdef, dev->data.shmem)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("matching shmem device was not found")); + if (virDomainDriverDetachShmemDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainShmemDefFree(virDomainShmemDefRemove(vmdef, idx)); break; - case VIR_DOMAIN_DEVICE_WATCHDOG: - if (!vmdef->watchdog) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("domain has no watchdog")); + if (virDomainDriverDetachWatchdogDeviceConfig(vmdef) < 0) return -1; - } - virDomainWatchdogDefFree(vmdef->watchdog); - vmdef->watchdog = NULL; + break; case VIR_DOMAIN_DEVICE_INPUT: - if ((idx = virDomainInputDefFind(vmdef, dev->data.input)) < 0) { - virReportError(VIR_ERR_DEVICE_MISSING, "%s", - _("matching input device not found")); + if (virDomainDriverDetachInputDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainInputDefFree(virDomainInputDefRemove(vmdef, idx)); break; case VIR_DOMAIN_DEVICE_VSOCK: - if (!vmdef->vsock || - !virDomainVsockDefEquals(dev->data.vsock, vmdef->vsock)) { - virReportError(VIR_ERR_OPERATION_FAILED, "%s", - _("matching vsock device not found")); + if (virDomainDriverDetachVsockDeviceConfig(vmdef, dev) < 0) return -1; - } - virDomainVsockDefFree(vmdef->vsock); - vmdef->vsock = NULL; + break; case VIR_DOMAIN_DEVICE_VIDEO: -- 2.33.0