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[libvirt] [PATCH v2 0/3] Use guest agent to quiesce disks
by Michal Privoznik 16 Mar '12

16 Mar '12

Since we have qemu guest agent support in libvirt, we can start wiring up some things that GA already knows how to do. One of them is file system freeze and thaw. Domain snapshots can profit from this functionality. Michal Privoznik (3): qemu_agent: Create file system freeze and thaw functions snapshots: Introduce VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE flag virsh: Expose new VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE flag include/libvirt/libvirt.h.in | 4 ++ src/libvirt.c | 6 +++ src/qemu/qemu_agent.c | 74 +++++++++++++++++++++++++++++++++++ src/qemu/qemu_agent.h | 3 + src/qemu/qemu_driver.c | 87 ++++++++++++++++++++++++++++++++++++++---- tools/virsh.c | 6 +++ tools/virsh.pod | 16 +++++++- 7 files changed, 186 insertions(+), 10 deletions(-) -- 1.7.3.4

4 8

[libvirt] [PATCH] Add support for forcing a private network namespace for LXC guests
by Daniel P. Berrange 15 Mar '12

15 Mar '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> If no <interface> elements are included in an LXC guest XML description, then the LXC guest will just see the host's network interfaces. It is desirable to be able to hide the host interfaces, without having to define any guest interfaces. This patch introduces a new feature flag <privnet/> to allow forcing of a private network namespace for LXC. In the future I also anticipate that we will add <privuser/> to force a private user ID namespace. * src/conf/domain_conf.c, src/conf/domain_conf.h: Add support for <privnet/> feature. Auto-set <privnet> if any <interface> devices are defined * src/lxc/lxc_container.c: Honour request for private network namespace NB: this was ACKed way back in January, but I forgot to push it then. Pushing it now - this re-post is just to remind folks where it came from https://www.redhat.com/archives/libvir-list/2012-January/msg01018.html --- docs/formatdomain.html.in | 7 +++++++ docs/schemas/domaincommon.rng | 5 +++++ src/conf/domain_conf.c | 3 ++- src/conf/domain_conf.h | 1 + src/lxc/lxc_container.c | 12 ++++++++---- 5 files changed, 23 insertions(+), 5 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 624c6b2..4edada3 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -897,6 +897,7 @@ <acpi/> <apic/> <hap/> + <privnet/> </features> ...</pre> @@ -924,6 +925,12 @@ <dd>Enable Viridian hypervisor extensions for paravirtualizing guest operating systems </dd> + <dt><code>privnet</code></dt> + <dd>Always create a private network namespace. This is + automatically set if any interface devices are defined. + This feature is only relevant for container based + virtualization drivers, such as LXC. + </dd> </dl> <h3><a name="elementsTime">Time keeping</a></h3> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index b804a70..5b3e5fa 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -2632,6 +2632,11 @@ <empty/> </element> </optional> + <optional> + <element name="privnet"> + <empty/> + </element> + </optional> </interleave> </element> </optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index f6f8b8c..e6d0f4b 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -106,7 +106,8 @@ VIR_ENUM_IMPL(virDomainFeature, VIR_DOMAIN_FEATURE_LAST, "apic", "pae", "hap", - "viridian") + "viridian", + "privnet") VIR_ENUM_IMPL(virDomainLifecycle, VIR_DOMAIN_LIFECYCLE_LAST, "destroy", diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 0ab3b81..f471e35 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1298,6 +1298,7 @@ enum virDomainFeature { VIR_DOMAIN_FEATURE_PAE, VIR_DOMAIN_FEATURE_HAP, VIR_DOMAIN_FEATURE_VIRIDIAN, + VIR_DOMAIN_FEATURE_PRIVNET, VIR_DOMAIN_FEATURE_LAST }; diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index d827b35..267fbfb 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -261,7 +261,8 @@ int lxcContainerWaitForContinue(int control) * * Returns 0 on success or nonzero in case of error */ -static int lxcContainerRenameAndEnableInterfaces(unsigned int nveths, +static int lxcContainerRenameAndEnableInterfaces(bool privNet, + unsigned int nveths, char **veths) { int rc = 0; @@ -289,7 +290,7 @@ static int lxcContainerRenameAndEnableInterfaces(unsigned int nveths, } /* enable lo device only if there were other net devices */ - if (veths) + if (veths || privNet) rc = virNetDevSetOnline("lo", true); error_out: @@ -1343,7 +1344,9 @@ static int lxcContainerChild( void *data ) VIR_DEBUG("Received container continue message"); /* rename and enable interfaces */ - if (lxcContainerRenameAndEnableInterfaces(argv->nveths, + if (lxcContainerRenameAndEnableInterfaces(!!(vmDef->features & + (1 << VIR_DOMAIN_FEATURE_PRIVNET)), + argv->nveths, argv->veths) < 0) { goto cleanup; } @@ -1458,7 +1461,8 @@ int lxcContainerStart(virDomainDefPtr def, cflags |= CLONE_NEWUSER; } - if (def->nets != NULL) { + if (def->nets != NULL || + (def->features & (1 << VIR_DOMAIN_FEATURE_PRIVNET))) { VIR_DEBUG("Enable network namespaces"); cflags |= CLONE_NEWNET; } -- 1.7.7.6

1 0

[libvirt] [PATCH] sanlock: Enhance error message to point to possible problem with selinux
by Peter Krempa 15 Mar '12

15 Mar '12

If the connection to the sanlock daemon is forbidden by selinux the error message was not clear enough. This patch adds a check if proper configuration for selinux is used while trying to connect to sanlock. *src/locking/lock_driver_sanlock.c: - add macro virLockSystemError that checks for selinux and reports an improved error message - modify calls of virReportSystemError to the new macro in apropriate places Background: https://bugzilla.redhat.com/show_bug.cgi?id=770488 --- src/locking/lock_driver_sanlock.c | 83 +++++++++++++++++++++++-------------- 1 files changed, 52 insertions(+), 31 deletions(-) diff --git a/src/locking/lock_driver_sanlock.c b/src/locking/lock_driver_sanlock.c index d344d6a..d5634f9 100644 --- a/src/locking/lock_driver_sanlock.c +++ b/src/locking/lock_driver_sanlock.c @@ -35,6 +35,10 @@ #include <sanlock_resource.h> #include <sanlock_admin.h> +#if HAVE_SELINUX +# include <selinux/selinux.h> +#endif + #include "lock_driver.h" #include "logging.h" #include "virterror_internal.h" @@ -51,7 +55,23 @@ #define virLockError(code, ...) \ virReportErrorHelper(VIR_FROM_THIS, code, __FILE__, \ __FUNCTION__, __LINE__, __VA_ARGS__) - +#if HAVE_SELINUX +# define virLockSystemError(theerrno, format, ...) \ + do { \ + if ((theerrno)==EACCES && \ + security_get_boolean_active("virt_use_sanlock") == 0) { \ + char errbuff[1024]; \ + snprintf(errbuff, sizeof(errbuff), "%s %s", (format), \ + _("(Consider setting virt_use_sanlock selinux variable)"));\ + virReportSystemError((theerrno), errbuff, __VA_ARGS__); \ + } else { \ + virReportSystemError((theerrno), (format), __VA_ARGS__); \ + } \ + } while(0); +#else +# define virLockSystemError(...) \ + virReportSystemError(__VA_ARGS__); +#endif #define VIR_LOCK_MANAGER_SANLOCK_AUTO_DISK_LOCKSPACE "__LIBVIRT__DISKS__" @@ -186,9 +206,9 @@ static int virLockManagerSanlockSetupLockspace(void) _("Unable to query sector size %s: error %d"), path, rv); else - virReportSystemError(-rv, - _("Unable to query sector size %s"), - path); + virLockSystemError(-rv, + _("Unable to query sector size %s"), + path); goto error_unlink; } @@ -215,9 +235,9 @@ static int virLockManagerSanlockSetupLockspace(void) _("Unable to initialize lockspace %s: error %d"), path, rv); else - virReportSystemError(-rv, - _("Unable to initialize lockspace %s"), - path); + virLockSystemError(-rv, + _("Unable to initialize lockspace %s"), + path); goto error_unlink; } VIR_DEBUG("Lockspace %s has been initialized", path); @@ -236,9 +256,9 @@ static int virLockManagerSanlockSetupLockspace(void) _("Unable to add lockspace %s: error %d"), path, rv); else - virReportSystemError(-rv, - _("Unable to add lockspace %s"), - path); + virLockSystemError(-rv, + _("Unable to add lockspace %s"), + path); goto error_unlink; } else { VIR_DEBUG("Lockspace %s is already registered", path); @@ -559,9 +579,9 @@ static int virLockManagerSanlockCreateLease(struct sanlk_resource *res) _("Unable to query sector size %s: error %d"), res->disks[0].path, rv); else - virReportSystemError(-rv, - _("Unable to query sector size %s"), - res->disks[0].path); + virLockSystemError(-rv, + _("Unable to query sector size %s"), + res->disks[0].path); goto error_unlink; } @@ -588,9 +608,9 @@ static int virLockManagerSanlockCreateLease(struct sanlk_resource *res) _("Unable to initialize lease %s: error %d"), res->disks[0].path, rv); else - virReportSystemError(-rv, - _("Unable to initialize lease %s"), - res->disks[0].path); + virLockSystemError(-rv, + _("Unable to initialize lease %s"), + res->disks[0].path); goto error_unlink; } VIR_DEBUG("Lease %s has been initialized", res->disks[0].path); @@ -711,9 +731,9 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock, _("Unable to parse lock state %s: error %d"), state, rv); else - virReportSystemError(-rv, - _("Unable to parse lock state %s"), - state); + virLockSystemError(-rv, + _("Unable to parse lock state %s"), + state); goto error; } res_free = true; @@ -736,8 +756,9 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock, _("Failed to open socket to sanlock daemon: error %d"), sock); else - virReportSystemError(-sock, "%s", - _("Failed to open socket to sanlock daemon")); + virLockSystemError(-sock, "%s", + _("Failed to open socket to sanlock daemon")); + goto error; } @@ -750,8 +771,8 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock, virLockError(VIR_ERR_INTERNAL_ERROR, _("Failed to acquire lock: error %d"), rv); else - virReportSystemError(-rv, "%s", - _("Failed to acquire lock")); + virLockSystemError(-rv, "%s", + _("Failed to acquire lock")); goto error; } } @@ -774,8 +795,8 @@ static int virLockManagerSanlockAcquire(virLockManagerPtr lock, virLockError(VIR_ERR_INTERNAL_ERROR, _("Failed to restrict process: error %d"), rv); else - virReportSystemError(-rv, "%s", - _("Failed to restrict process")); + virLockSystemError(-rv, "%s", + _("Failed to restrict process")); goto error; } } @@ -823,8 +844,8 @@ static int virLockManagerSanlockRelease(virLockManagerPtr lock, virLockError(VIR_ERR_INTERNAL_ERROR, _("Failed to inquire lock: error %d"), rv); else - virReportSystemError(-rv, "%s", - _("Failed to inquire lock")); + virLockSystemError(-rv, "%s", + _("Failed to inquire lock")); return -1; } @@ -837,8 +858,8 @@ static int virLockManagerSanlockRelease(virLockManagerPtr lock, virLockError(VIR_ERR_INTERNAL_ERROR, _("Failed to release lock: error %d"), rv); else - virReportSystemError(-rv, "%s", - _("Failed to release lock")); + virLockSystemError(-rv, "%s", + _("Failed to release lock")); return -1; } @@ -866,8 +887,8 @@ static int virLockManagerSanlockInquire(virLockManagerPtr lock, virLockError(VIR_ERR_INTERNAL_ERROR, _("Failed to inquire lock: error %d"), rv); else - virReportSystemError(-rv, "%s", - _("Failed to inquire lock")); + virLockSystemError(-rv, "%s", + _("Failed to inquire lock")); return -1; } -- 1.7.3.4

3 3

[libvirt] [PATCH] lib: Don't access configuration if none is present
by Peter Krempa 15 Mar '12

15 Mar '12

Commit e457d5ef2015e6106094b85f8bbd1582002edc4d adds ability to pass the default URI using the client configuration file. If the file is not present, it still accesses the NULL config object causing a segfault. Caught running "make check". --- src/libvirt.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index 1c0cdf7..d0b1b28 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -1085,7 +1085,8 @@ virConnectOpenResolveURIAlias(virConfPtr conf, *uri = NULL; - if ((value = virConfGetValue(conf, "uri_aliases"))) + if (conf && + (value = virConfGetValue(conf, "uri_aliases"))) ret = virConnectOpenFindURIAliasMatch(value, alias, uri); else ret = 0; -- 1.7.3.4

2 2

[libvirt] [PATCH] Emit graphics events when a SPICE client connects/disconnects
by Laine Stump 15 Mar '12

15 Mar '12

Wire up the domain graphics event notifications for SPICE. Adapted from a RHEL-only patch written by Dan Berrange that used custom __com.redhat_SPICE events - equivalent events are now available in upstream QEMU (including a SPICE_CONNECTED event, which was missing in the __COM.redhat_SPICE version). * src/qemu/qemu_monitor_json.c: Wire up SPICE graphics events --- src/qemu/qemu_monitor_json.c | 56 +++++++++++++++++++++++++++++++++++++++--- 1 files changed, 52 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 1a0ee94..a5ef1d4 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -59,6 +59,9 @@ static void qemuMonitorJSONHandleVNCConnect(qemuMonitorPtr mon, virJSONValuePtr static void qemuMonitorJSONHandleVNCInitialize(qemuMonitorPtr mon, virJSONValuePtr data); static void qemuMonitorJSONHandleVNCDisconnect(qemuMonitorPtr mon, virJSONValuePtr data); static void qemuMonitorJSONHandleBlockJob(qemuMonitorPtr mon, virJSONValuePtr data); +static void qemuMonitorJSONHandleSPICEConnect(qemuMonitorPtr mon, virJSONValuePtr data); +static void qemuMonitorJSONHandleSPICEInitialize(qemuMonitorPtr mon, virJSONValuePtr data); +static void qemuMonitorJSONHandleSPICEDisconnect(qemuMonitorPtr mon, virJSONValuePtr data); static struct { const char *type; @@ -75,6 +78,9 @@ static struct { { "VNC_INITIALIZED", qemuMonitorJSONHandleVNCInitialize, }, { "VNC_DISCONNECTED", qemuMonitorJSONHandleVNCDisconnect, }, { "BLOCK_JOB_COMPLETED", qemuMonitorJSONHandleBlockJob, }, + { "SPICE_CONNECTED", qemuMonitorJSONHandleSPICEConnect, }, + { "SPICE_INITIALIZED", qemuMonitorJSONHandleSPICEInitialize, }, + { "SPICE_DISCONNECTED", qemuMonitorJSONHandleSPICEDisconnect, }, }; @@ -624,7 +630,7 @@ VIR_ENUM_IMPL(qemuMonitorGraphicsAddressFamily, VIR_DOMAIN_EVENT_GRAPHICS_ADDRESS_LAST, "ipv4", "ipv6", "unix"); -static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, int phase) +static void qemuMonitorJSONHandleGraphics(qemuMonitorPtr mon, virJSONValuePtr data, int phase) { const char *localNode, *localService, *localFamily; const char *remoteNode, *remoteService, *remoteFamily; @@ -643,14 +649,38 @@ static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, i } authScheme = virJSONValueObjectGetString(server, "auth"); + if (!authScheme) { + VIR_WARN("missing auth scheme in graphics event"); + return; + } localFamily = virJSONValueObjectGetString(server, "family"); + if (!authScheme) { + VIR_WARN("missing local address family in graphics event"); + return; + } localNode = virJSONValueObjectGetString(server, "host"); + if (!authScheme) { + VIR_WARN("missing local hostname in graphics event"); + return; + } localService = virJSONValueObjectGetString(server, "service"); + if (!localService) + localService = ""; /* Spice has multiple ports, so this isn't provided */ remoteFamily = virJSONValueObjectGetString(client, "family"); + if (!authScheme) { + VIR_WARN("missing remote address family in graphics event"); + return; + } remoteNode = virJSONValueObjectGetString(client, "host"); + if (!authScheme) { + VIR_WARN("missing remote hostname in graphics event"); + return; + } remoteService = virJSONValueObjectGetString(client, "service"); + if (!remoteService) + remoteService = ""; /* Spice has multiple ports, so this isn't provided */ saslUsername = virJSONValueObjectGetString(client, "sasl_username"); x509dname = virJSONValueObjectGetString(client, "x509_dname"); @@ -672,19 +702,37 @@ static void qemuMonitorJSONHandleVNC(qemuMonitorPtr mon, virJSONValuePtr data, i static void qemuMonitorJSONHandleVNCConnect(qemuMonitorPtr mon, virJSONValuePtr data) { - qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT); + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT); } static void qemuMonitorJSONHandleVNCInitialize(qemuMonitorPtr mon, virJSONValuePtr data) { - qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE); + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE); } static void qemuMonitorJSONHandleVNCDisconnect(qemuMonitorPtr mon, virJSONValuePtr data) { - qemuMonitorJSONHandleVNC(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT); + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT); +} + + +static void qemuMonitorJSONHandleSPICEConnect(qemuMonitorPtr mon, virJSONValuePtr data) +{ + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_CONNECT); +} + + +static void qemuMonitorJSONHandleSPICEInitialize(qemuMonitorPtr mon, virJSONValuePtr data) +{ + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_INITIALIZE); +} + + +static void qemuMonitorJSONHandleSPICEDisconnect(qemuMonitorPtr mon, virJSONValuePtr data) +{ + qemuMonitorJSONHandleGraphics(mon, data, VIR_DOMAIN_EVENT_GRAPHICS_DISCONNECT); } static void qemuMonitorJSONHandleBlockJob(qemuMonitorPtr mon, virJSONValuePtr data) -- 1.7.7.6

3 6

[libvirt] [PATCH] qemuDomainDetachPciDiskDevice: Free allocated cgroup
by Michal Privoznik 15 Mar '12

15 Mar '12

This function potentially allocates new virCgroup but never frees it. --- src/qemu/qemu_hotplug.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index e088a49..f1c1283 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -1621,6 +1621,7 @@ int qemuDomainDetachPciDiskDevice(struct qemud_driver *driver, ret = 0; cleanup: + virCgroupFree(&cgroup); VIR_FREE(drivestr); return ret; } -- 1.7.8.5

2 2

[libvirt] [PATCH] qemu: Split ide-drive into ide-cd and ide-hd
by Osier Yang 15 Mar '12

15 Mar '12

A "ide-drive" device can be either a hard disk or a CD-ROM, if there is ",media=cdrom" specified for the backend, it's a CD-ROM, otherwise it's a hard disk. Upstream qemu splitted "ide-drive" into "ide-hd" and "ide-cd" since commit 1f56e32, and ",media=cdrom" is not required for ide-cd anymore. "ide-drive" is still supported for backwards compatibility, but no doubt we should go foward. --- src/qemu/qemu_capabilities.c | 4 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 26 +++++++++++++++- tests/qemuhelptest.c | 3 +- .../qemuxml2argv-disk-ide-drive-split.args | 8 +++++ .../qemuxml2argv-disk-ide-drive-split.xml | 32 ++++++++++++++++++++ tests/qemuxml2argvtest.c | 3 ++ 7 files changed, 74 insertions(+), 3 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.xml diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index c4b04ae..1f999a7 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -156,6 +156,8 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "scsi-disk.channel", "scsi-block", "scsi-cd", + + "ide-cd", /* 90 */ ); struct qemu_feature_flags { @@ -1450,6 +1452,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags) qemuCapsSet(flags, QEMU_CAPS_SCSI_BLOCK); if (strstr(str, "scsi-cd")) qemuCapsSet(flags, QEMU_CAPS_SCSI_CD); + if (strstr(str, "ide-cd")) + qemuCapsSet(flags, QEMU_CAPS_IDE_CD); return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 5ebffdc..e664f29 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -124,6 +124,7 @@ enum qemuCapsFlags { QEMU_CAPS_SCSI_DISK_CHANNEL = 87, /* Is scsi-disk.channel available? */ QEMU_CAPS_SCSI_BLOCK = 88, /* -device scsi-block */ QEMU_CAPS_SCSI_CD = 89, /* -device scsi-cd */ + QEMU_CAPS_IDE_CD = 90, /* -device ide-cd */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index afe5db8..9a02a80 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1971,6 +1971,9 @@ qemuBuildDriveStr(virConnectPtr conn ATTRIBUTE_UNUSED, if ((disk->bus == VIR_DOMAIN_DISK_BUS_SCSI)) { if (!qemuCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD)) virBufferAddLit(&opt, ",media=cdrom"); + } else if (disk->bus == VIR_DOMAIN_DISK_BUS_IDE) { + if (!qemuCapsGet(qemuCaps, QEMU_CAPS_IDE_CD)) + virBufferAddLit(&opt, ",media=cdrom"); } else { virBufferAddLit(&opt, ",media=cdrom"); } @@ -2194,7 +2197,16 @@ qemuBuildDriveDevStr(virDomainDefPtr def, _("target must be 0 for ide controller")); goto error; } - virBufferAddLit(&opt, "ide-drive"); + + if (qemuCapsGet(qemuCaps, QEMU_CAPS_IDE_CD)) { + if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) + virBufferAddLit(&opt, "ide-cd"); + else + virBufferAddLit(&opt, "ide-hd"); + } else { + virBufferAddLit(&opt, "ide-drive"); + } + virBufferAsprintf(&opt, ",bus=ide.%d,unit=%d", disk->info.addr.drive.bus, disk->info.addr.drive.unit); @@ -2285,12 +2297,22 @@ qemuBuildDriveDevStr(virDomainDefPtr def, _("bus must be 0 for ide controller")); goto error; } + if (disk->info.addr.drive.target != 0) { qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("target must be 0 for ide controller")); goto error; } - virBufferAddLit(&opt, "ide-drive"); + + if (qemuCapsGet(qemuCaps, QEMU_CAPS_IDE_CD)) { + if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) + virBufferAddLit(&opt, "ide-cd"); + else + virBufferAddLit(&opt, "ide-hd"); + } else { + virBufferAddLit(&opt, "ide-drive"); + } + virBufferAsprintf(&opt, ",bus=ahci%d.%d", disk->info.addr.drive.controller, disk->info.addr.drive.unit); diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index a01c389..d23b35a 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -676,7 +676,8 @@ mymain(void) QEMU_CAPS_CPU_HOST, QEMU_CAPS_FSDEV_WRITEOUT, QEMU_CAPS_SCSI_BLOCK, - QEMU_CAPS_SCSI_CD); + QEMU_CAPS_SCSI_CD, + QEMU_CAPS_IDE_CD); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.args new file mode 100644 index 0000000..e24490d --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.args @@ -0,0 +1,8 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test \ +/usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c \ +-drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-ide0-0-1 \ +-device ide-cd,bus=ide.0,unit=1,drive=drive-ide0-0-1,id=ide0-0-1 \ +-drive file=/tmp/idedisk.img,if=none,id=drive-ide0-0-2 \ +-device ide-hd,bus=ide.0,unit=2,drive=drive-ide0-0-2,id=ide0-0-2 \ +-usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.xml new file mode 100644 index 0000000..b965677 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-ide-drive-split.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='cdrom'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='1'/> + </disk> + <disk type='file' device='disk'> + <source file='/tmp/idedisk.img'/> + <target dev='hdc' bus='ide'/> + <address type='drive' controller='0' bus='0' target='0' unit='2'/> + </disk> + <controller type='usb' index='0'/> + <controller type='ide' index='0'/> + <controller type='ide' index='1'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 97e2bac..b503ddc 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -753,6 +753,9 @@ mymain(void) DO_TEST("pseries-vio-address-clash", true, QEMU_CAPS_DRIVE, QEMU_CAPS_CHARDEV, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG); + DO_TEST("disk-ide-drive-split", false, + QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG, + QEMU_CAPS_IDE_CD); VIR_FREE(driver.stateDir); virCapabilitiesFree(driver.caps); VIR_FREE(map); -- 1.7.1

1 0

[libvirt] [PATCH] qemu: Split scsi-disk into into scsi-hd and scsi-cd
by Osier Yang 15 Mar '12

15 Mar '12

A "scsi-disk" device can be either a hard disk or a CD-ROM, if there is ",media=cdrom" specified for the backend, it's a CD-ROM, otherwise it's a hard disk. But upstream qemu splitted "scsi-disk" into "scsi-hd" and "scsi-cd" since commit b443ae, and ",media=cdrom" is not required for scsi-cd anymore. "scsi-disk" is still supported for backwards compatibility, but no doubt we should go foward. --- src/qemu/qemu_capabilities.c | 3 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 39 ++++++++++++++---- tests/qemuhelptest.c | 6 ++- .../qemuxml2argv-disk-scsi-disk-split.args | 16 +++++++ .../qemuxml2argv-disk-scsi-disk-split.xml | 44 ++++++++++++++++++++ tests/qemuxml2argvtest.c | 3 + 7 files changed, 102 insertions(+), 10 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.xml diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index ace5011..c4b04ae 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -155,6 +155,7 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "system_wakeup", "scsi-disk.channel", "scsi-block", + "scsi-cd", ); struct qemu_feature_flags { @@ -1447,6 +1448,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags) qemuCapsSet(flags, QEMU_CAPS_SCSI_DISK_CHANNEL); if (strstr(str, "scsi-block")) qemuCapsSet(flags, QEMU_CAPS_SCSI_BLOCK); + if (strstr(str, "scsi-cd")) + qemuCapsSet(flags, QEMU_CAPS_SCSI_CD); return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 62b4270..5ebffdc 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -123,6 +123,7 @@ enum qemuCapsFlags { QEMU_CAPS_WAKEUP = 86, /* system_wakeup monitor command */ QEMU_CAPS_SCSI_DISK_CHANNEL = 87, /* Is scsi-disk.channel available? */ QEMU_CAPS_SCSI_BLOCK = 88, /* -device scsi-block */ + QEMU_CAPS_SCSI_CD = 89, /* -device scsi-cd */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 3b9eec8..afe5db8 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1967,8 +1967,14 @@ qemuBuildDriveStr(virConnectPtr conn ATTRIBUTE_UNUSED, else virBufferAsprintf(&opt, "if=%s", bus); - if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) - virBufferAddLit(&opt, ",media=cdrom"); + if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) { + if ((disk->bus == VIR_DOMAIN_DISK_BUS_SCSI)) { + if (!qemuCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD)) + virBufferAddLit(&opt, ",media=cdrom"); + } else { + virBufferAddLit(&opt, ",media=cdrom"); + } + } if (qemuCapsGet(qemuCaps, QEMU_CAPS_DEVICE)) { virBufferAsprintf(&opt, ",id=%s%s", QEMU_DRIVE_HOST_PREFIX, disk->info.alias); @@ -2218,10 +2224,19 @@ qemuBuildDriveDevStr(virDomainDefPtr def, goto error; } - if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) + if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) { virBufferAddLit(&opt, "scsi-block"); - else - virBufferAddLit(&opt, "scsi-disk"); + } else { + if (qemuCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD)) { + if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) + virBufferAddLit(&opt, "scsi-cd"); + else + virBufferAddLit(&opt, "scsi-hd"); + } else { + virBufferAddLit(&opt, "scsi-disk"); + } + } + virBufferAsprintf(&opt, ",bus=scsi%d.%d,scsi-id=%d", disk->info.addr.drive.controller, disk->info.addr.drive.bus, @@ -2244,10 +2259,18 @@ qemuBuildDriveDevStr(virDomainDefPtr def, } } - if (disk->device != VIR_DOMAIN_DISK_DEVICE_LUN) - virBufferAddLit(&opt, "scsi-disk"); - else + if (disk->device != VIR_DOMAIN_DISK_DEVICE_LUN) { + if (qemuCapsGet(qemuCaps, QEMU_CAPS_SCSI_CD)) { + if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM) + virBufferAddLit(&opt, "scsi-cd"); + else + virBufferAddLit(&opt, "scsi-hd"); + } else { + virBufferAddLit(&opt, "scsi-disk"); + } + } else { virBufferAddLit(&opt, "scsi-block"); + } virBufferAsprintf(&opt, ",bus=scsi%d.0,channel=%d,scsi-id=%d,lun=%d", disk->info.addr.drive.controller, diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 05fdc4d..a01c389 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -605,7 +605,8 @@ mymain(void) QEMU_CAPS_VIRTIO_BLK_SCSI, QEMU_CAPS_VIRTIO_BLK_SG_IO, QEMU_CAPS_DRIVE_COPY_ON_READ, - QEMU_CAPS_CPU_HOST); + QEMU_CAPS_CPU_HOST, + QEMU_CAPS_SCSI_CD); DO_TEST("qemu-1.0", 1000000, 0, 0, QEMU_CAPS_VNC_COLON, QEMU_CAPS_NO_REBOOT, @@ -674,7 +675,8 @@ mymain(void) QEMU_CAPS_VIRTIO_BLK_SG_IO, QEMU_CAPS_CPU_HOST, QEMU_CAPS_FSDEV_WRITEOUT, - QEMU_CAPS_SCSI_BLOCK); + QEMU_CAPS_SCSI_BLOCK, + QEMU_CAPS_SCSI_CD); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.args new file mode 100644 index 0000000..a79299a --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.args @@ -0,0 +1,16 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test \ +/usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c \ +-device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 \ +-device lsi,id=scsi1,bus=pci.0,addr=0x4 \ +-device lsi,id=scsi2,bus=pci.0,addr=0x5 \ +-device virtio-scsi-pci,id=scsi3,bus=pci.0,addr=0x6 \ +-drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-scsi0-0-1-0 \ +-device scsi-cd,bus=scsi0.0,channel=0,scsi-id=1,lun=0,drive=drive-scsi0-0-1-0,id=scsi0-0-1-0 \ +-drive file=/dev/HostVG/QEMUGuest2,if=none,id=drive-scsi0-0-0-0 \ +-device scsi-cd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0 \ +-drive file=/tmp/scsidisk.img,if=none,id=drive-scsi0-0-0-1 \ +-device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi0-0-0-1,id=scsi0-0-0-1 \ +-drive file=/tmp/scsidisk.img,if=none,id=drive-scsi0-0-1-1 \ +-device scsi-hd,bus=scsi0.0,channel=0,scsi-id=1,lun=1,drive=drive-scsi0-0-1-1,id=scsi0-0-1-1 \ +-usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.xml new file mode 100644 index 0000000..02181fd --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-scsi-disk-split.xml @@ -0,0 +1,44 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu>1</vcpu> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='block' device='cdrom'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='sda' bus='scsi'/> + <address type='drive' controller='0' bus='0' target='1' unit='0'/> + </disk> + <disk type='block' device='cdrom'> + <source dev='/dev/HostVG/QEMUGuest2'/> + <target dev='sda' bus='scsi'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <disk type='file' device='disk'> + <source file='/tmp/scsidisk.img'/> + <target dev='sdc' bus='scsi'/> + <address type='drive' controller='0' bus='0' target='0' unit='1'/> + </disk> + <disk type='file' device='disk'> + <source file='/tmp/scsidisk.img'/> + <target dev='sdd' bus='scsi'/> + <address type='drive' controller='0' bus='0' target='1' unit='1'/> + </disk> + <controller type='usb' index='0'/> + <controller type='scsi' index='0' model='virtio-scsi'/> + <controller type='scsi' index='1' model='lsilogic'/> + <controller type='scsi' index='2' model='lsilogic'/> + <controller type='scsi' index='3' model='virtio-scsi'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index d0affc7..97e2bac 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -457,6 +457,9 @@ mymain(void) QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG); DO_TEST("disk-scsi-device-auto", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG); + DO_TEST("disk-scsi-disk-split", false, + QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG, + QEMU_CAPS_SCSI_CD); DO_TEST("disk-scsi-vscsi", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG); DO_TEST("disk-scsi-virtio-scsi", false, -- 1.7.1

1 0

[libvirt] [PATCH] numad: Fix typo and warning
by Osier Yang 15 Mar '12

15 Mar '12

src/libvirt_private.syms: s/virDomainCpuPlacement/virDomainCpuPlacementMode/ src/qemu/qemu_process.c def->mem.cur_balloon expects "llu" -- pushed under build-breaker rule --- src/libvirt_private.syms | 4 ++-- src/qemu/qemu_process.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index d58082a..e40c80e 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -271,8 +271,8 @@ virDomainControllerModelSCSITypeToString; virDomainControllerModelUSBTypeFromString; virDomainControllerModelUSBTypeToString; virDomainControllerTypeToString; -virDomainCpuPlacementTypeFromString; -virDomainCpuPlacementTypeToString; +virDomainCpuPlacementModeTypeFromString; +virDomainCpuPlacementModeTypeToString; virDomainCpuSetFormat; virDomainCpuSetParse; virDomainDefAddImplicitControllers; diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 56cb531..0af3751 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -1641,7 +1641,7 @@ qemuGetNumadAdvice(virDomainDefPtr def) char *args = NULL; char *output = NULL; - if (virAsprintf(&args, "%d:%lu", def->vcpus, def->mem.cur_balloon) < 0) { + if (virAsprintf(&args, "%d:%llu", def->vcpus, def->mem.cur_balloon) < 0) { virReportOOMError(); goto out; } -- 1.7.1

1 0

[libvirt] [PATCH] virsh: A bit smarter attach-disk
by Osier Yang 15 Mar '12

15 Mar '12

Detects the file type of source path if no "--sourcetype" and "driver" is specified, instead of always set the disk type as "block". And previous "virCommandOptString" ensures "source" is not NULL, remove the conditional checking. --- tools/virsh.c | 14 +++++++++----- 1 files changed, 9 insertions(+), 5 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index d45a4c9..3b845ac 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -14428,6 +14428,7 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) const char *stype = NULL; virBuffer buf = VIR_BUFFER_INITIALIZER; char *xml; + struct stat st; if (!vshConnectionUsability(ctl, ctl->conn)) goto cleanup; @@ -14458,8 +14459,12 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) } if (!stype) { - if (driver && (STREQ(driver, "file") || STREQ(driver, "tap"))) + if (driver && (STREQ(driver, "file") || STREQ(driver, "tap"))) { isFile = true; + } else { + if (!stat(source, &st)) + isFile = S_ISREG(st.st_mode) ? true : false; + } } else if (STREQ(stype, "file")) { isFile = true; } else if (STRNEQ(stype, "block")) { @@ -14497,10 +14502,9 @@ cmdAttachDisk(vshControl *ctl, const vshCmd *cmd) if (driver || subdriver || cache) virBufferAddLit(&buf, "/>\n"); - if (source) - virBufferAsprintf(&buf, " <source %s='%s'/>\n", - (isFile) ? "file" : "dev", - source); + virBufferAsprintf(&buf, " <source %s='%s'/>\n", + (isFile) ? "file" : "dev", + source); virBufferAsprintf(&buf, " <target dev='%s'/>\n", target); if (mode) virBufferAsprintf(&buf, " <%s/>\n", mode); -- 1.7.1

2 5