October 2019 - Devel - libvirt List Archives

[libvirt] [libvirt-rust PATCH 1/1] Make creating safe wrapper from raw pointer unsafe
by Linus Färnstrand 16 Oct '19

16 Oct '19

Giving an invalid pointer to the safe wrapper types causes undefined behavior when methods are later called on said wrapper Properly document safety contract of using unsafe constructor --- src/connect.rs | 10 ++++++++-- src/domain.rs | 10 ++++++++-- src/domain_snapshot.rs | 10 ++++++++-- src/interface.rs | 10 ++++++++-- src/network.rs | 10 ++++++++-- src/nodedev.rs | 10 ++++++++-- src/nwfilter.rs | 10 ++++++++-- src/secret.rs | 10 ++++++++-- src/storage_pool.rs | 10 ++++++++-- src/storage_vol.rs | 10 ++++++++-- src/stream.rs | 8 +++++++- 11 files changed, 87 insertions(+), 21 deletions(-) diff --git a/src/connect.rs b/src/connect.rs index 108224d..7f02619 100644 --- a/src/connect.rs +++ b/src/connect.rs @@ -462,8 +462,14 @@ impl Connect { self.ptr.unwrap() } - pub fn new(ptr: sys::virConnectPtr) -> Connect { - return Connect { ptr: Some(ptr) }; + /// Creates a new [Connect] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt connection object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virConnectPtr) -> Connect { + Connect { ptr: Some(ptr) } } pub fn get_version() -> Result<u32, Error> { diff --git a/src/domain.rs b/src/domain.rs index acb9e6e..0df95ee 100644 --- a/src/domain.rs +++ b/src/domain.rs @@ -628,8 +628,14 @@ impl Drop for Domain { } impl Domain { - pub fn new(ptr: sys::virDomainPtr) -> Domain { - return Domain { ptr: Some(ptr) }; + /// Creates a new [Domain] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt domain object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virDomainPtr) -> Domain { + Domain { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virDomainPtr { diff --git a/src/domain_snapshot.rs b/src/domain_snapshot.rs index 86599ef..8b6c873 100644 --- a/src/domain_snapshot.rs +++ b/src/domain_snapshot.rs @@ -94,8 +94,14 @@ impl Drop for DomainSnapshot { } impl DomainSnapshot { - pub fn new(ptr: sys::virDomainSnapshotPtr) -> DomainSnapshot { - return DomainSnapshot { ptr: Some(ptr) }; + /// Creates a new [DomainSnapshot] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt domain snapshot object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virDomainSnapshotPtr) -> DomainSnapshot { + DomainSnapshot { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virDomainSnapshotPtr { diff --git a/src/interface.rs b/src/interface.rs index 6fe8742..b06b641 100644 --- a/src/interface.rs +++ b/src/interface.rs @@ -81,8 +81,14 @@ impl Drop for Interface { } impl Interface { - pub fn new(ptr: sys::virInterfacePtr) -> Interface { - return Interface { ptr: Some(ptr) }; + /// Creates a new [Interface] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt interface object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virInterfacePtr) -> Interface { + Interface { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virInterfacePtr { diff --git a/src/network.rs b/src/network.rs index ac8c042..bbe5539 100644 --- a/src/network.rs +++ b/src/network.rs @@ -117,8 +117,14 @@ impl Drop for Network { } impl Network { - pub fn new(ptr: sys::virNetworkPtr) -> Network { - return Network { ptr: Some(ptr) }; + /// Creates a new [Network] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt network object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virNetworkPtr) -> Network { + Network { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virNetworkPtr { diff --git a/src/nodedev.rs b/src/nodedev.rs index c38c49e..2f36ea6 100644 --- a/src/nodedev.rs +++ b/src/nodedev.rs @@ -99,8 +99,14 @@ impl Drop for NodeDevice { } impl NodeDevice { - pub fn new(ptr: sys::virNodeDevicePtr) -> NodeDevice { - return NodeDevice { ptr: Some(ptr) }; + /// Creates a new [NodeDevice] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt node device object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virNodeDevicePtr) -> NodeDevice { + NodeDevice { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virNodeDevicePtr { diff --git a/src/nwfilter.rs b/src/nwfilter.rs index bd9455d..84f440e 100644 --- a/src/nwfilter.rs +++ b/src/nwfilter.rs @@ -68,8 +68,14 @@ impl Drop for NWFilter { } impl NWFilter { - pub fn new(ptr: sys::virNWFilterPtr) -> NWFilter { - return NWFilter { ptr: Some(ptr) }; + /// Creates a new [NWFilter] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt NWFilter object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virNWFilterPtr) -> NWFilter { + NWFilter { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virNWFilterPtr { diff --git a/src/secret.rs b/src/secret.rs index ba96b02..59a3f19 100644 --- a/src/secret.rs +++ b/src/secret.rs @@ -100,8 +100,14 @@ impl Drop for Secret { } impl Secret { - pub fn new(ptr: sys::virSecretPtr) -> Secret { - return Secret { ptr: Some(ptr) }; + /// Creates a new [Secret] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt secret object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virSecretPtr) -> Secret { + Secret { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virSecretPtr { diff --git a/src/storage_pool.rs b/src/storage_pool.rs index 38676c2..b8d9feb 100644 --- a/src/storage_pool.rs +++ b/src/storage_pool.rs @@ -156,8 +156,14 @@ impl Drop for StoragePool { } impl StoragePool { - pub fn new(ptr: sys::virStoragePoolPtr) -> StoragePool { - return StoragePool { ptr: Some(ptr) }; + /// Creates a new [StoragePool] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt storage pool object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virStoragePoolPtr) -> StoragePool { + StoragePool { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virStoragePoolPtr { diff --git a/src/storage_vol.rs b/src/storage_vol.rs index afc9b17..762c615 100644 --- a/src/storage_vol.rs +++ b/src/storage_vol.rs @@ -181,8 +181,14 @@ impl Drop for StorageVol { } impl StorageVol { - pub fn new(ptr: sys::virStorageVolPtr) -> StorageVol { - return StorageVol { ptr: Some(ptr) }; + /// Creates a new [StorageVol] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt storage volume object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virStorageVolPtr) -> StorageVol { + StorageVol { ptr: Some(ptr) } } pub fn as_ptr(&self) -> sys::virStorageVolPtr { diff --git a/src/stream.rs b/src/stream.rs index 8333ee5..ff85bea 100644 --- a/src/stream.rs +++ b/src/stream.rs @@ -68,7 +68,13 @@ impl Drop for Stream { } impl Stream { - pub fn new(ptr: sys::virStreamPtr) -> Stream { + /// Creates a new [Stream] from the given raw pointer. + /// + /// # Safety + /// + /// The pointer must point to a valid libvirt stream object. + /// The underlying object must be valid for the entire lifetime of the returned instance. + pub unsafe fn from_ptr(ptr: sys::virStreamPtr) -> Stream { Stream { ptr: Some(ptr) } } -- 2.21.0

3 2

[libvirt] [PATCH 0/9] More GLib macro usage (glib chronicles)
by Ján Tomko 16 Oct '19

16 Oct '19

2 10

[libvirt] [PATCH 0/8] Use even morer of GLib's macros (glib chronicles)
by Ján Tomko 16 Oct '19

16 Oct '19

4 13

[libvirt] [PATCH v4] util: Ignore SIGPIPE before write logs to stderr in child process
by Wang Yechao 16 Oct '19

16 Oct '19

Libvirtd has set SIGPIPE to ignored, and virFork resets all signal handlers to the defaults. But child process may write logs to stderr/stdout, that may generate SIGPIPE if journald has stopped. So in virExec(), set SIGPIPE to ignored before invoke virCommandMassClose, and revert it back to SIG_DFL after that. In virProcessRunInFork(), just set SIGPIPE to ignored. Signed-off-by: Wang Yechao <wang.yechao255(a)zte.com.cn> --- v1 patch: https://www.redhat.com/archives/libvir-list/2019-October/msg00720.html Changes in v2: - use pthread_sigmask to block SIGPIPE Changes in v3: - pass SIG_UNBLOCK(not SIG_SETMASK) to pthread_sigmask when unlock SIGPIPE Changes in v4: - don't block SIGPIPE, ignore it when invoke VIR_FORCE_CLOSE and virCommandMassClose --- src/util/vircommand.c | 16 ++++++++++++++++ src/util/virprocess.c | 10 ++++++++++ 2 files changed, 26 insertions(+) diff --git a/src/util/vircommand.c b/src/util/vircommand.c index 763bcb6..bb6e73b 100644 --- a/src/util/vircommand.c +++ b/src/util/vircommand.c @@ -653,9 +653,25 @@ virExec(virCommandPtr cmd) umask(cmd->mask); ret = EXIT_CANCELED; + memset(&waxoff, 0, sizeof(waxoff)); + waxoff.sa_handler = SIG_IGN; + sigemptyset(&waxoff.sa_mask); + memset(&waxon, 0, sizeof(waxon)); + if (sigaction(SIGPIPE, &waxoff, &waxon) < 0) { + virReportSystemError(errno, "%s", + _("Could not disable SIGPIPE")); + goto fork_error; + } + if (virCommandMassClose(cmd, childin, childout, childerr) < 0) goto fork_error; + if (sigaction(SIGPIPE, &waxon, NULL) < 0) { + virReportSystemError(errno, "%s", + _("Could not re-enable SIGPIPE")); + goto fork_error; + } + if (prepareStdFd(childin, STDIN_FILENO) < 0) { virReportSystemError(errno, "%s", _("failed to setup stdin file handle")); diff --git a/src/util/virprocess.c b/src/util/virprocess.c index e8d4ba0..da66dcf 100644 --- a/src/util/virprocess.c +++ b/src/util/virprocess.c @@ -1151,6 +1151,16 @@ virProcessRunInFork(virProcessForkCallback cb, goto cleanup; if (child == 0) { + struct sigaction waxoff; + + memset(&waxoff, 0, sizeof(waxoff)); + waxoff.sa_handler = SIG_IGN; + sigemptyset(&waxoff.sa_mask); + if (sigaction(SIGPIPE, &waxoff, NULL) < 0) { + virReportSystemError(errno, "%s", + _("Could not disable SIGPIPE")); + } + VIR_FORCE_CLOSE(errfd[0]); ret = virProcessRunInForkHelper(errfd[1], parent, cb, opaque); VIR_FORCE_CLOSE(errfd[1]); -- 1.8.3.1

1 0

[libvirt] [PATCH 0/1] Add shrink flag to blockresize command
by martinsson.patrik＠gmail.com 16 Oct '19

16 Oct '19

From: patchon <martinsson.patrik(a)gmail.com> This changes the behaviour when shrinking a block device. This should be a fairly uncommon thing to do (I think), so I don't think one have to worry about breaking anything when introducing the new flag (--shrink). This also mimics the existing behaviour of the vol-resize command, which I personally think makes sense. Unfortunately this check was not present when I, one late Friday afternoon, was asked to extend a production-mysql-slave-device. This made me accidentally shrink a 2.5TB device with about 150GB. Needless to say - that Friday afternoon did not end with the obligatory weekend-beer-celebration. Non the less, I think this makes sense from an end user perspective. Also, there is actually one mention of this on behaviour already at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=902171 patchon (1): Add shrink flag to blockresize command src/qemu/qemu_driver.c | 15 ++++++++++++++- tools/virsh-domain.c | 7 +++++++ tools/virsh.pod | 9 ++++++++- 3 files changed, 29 insertions(+), 2 deletions(-) -- 2.23.0

3 3

[libvirt] [PATCH 0/2] Fix build with musl libc
by casantos＠redhat.com 16 Oct '19

16 Oct '19

From: Carlos Santos <casantos(a)redhat.com> - Do not use 'stderr' as a field name, since it's a preprocessor macro in stdio.h. - Include paths.h for _PATH_MOUNTED, if it's not defined in mntent.h. Found while porting libvirt to Buildroot (https://buildroot.org/) Carlos Santos (2): qemu: fix build with musl libc storage: fix build with musl libc src/qemu/qemu_process.c | 8 ++++---- src/qemu/qemu_process.h | 2 +- src/storage/storage_backend_fs.c | 3 +++ src/storage/storage_backend_vstorage.c | 3 +++ 4 files changed, 11 insertions(+), 5 deletions(-) -- 2.18.1

1 2

[libvirt] [RFC 0/1] convert virStorageSource to GObject
by Daniel Henrique Barboza 15 Oct '19

15 Oct '19

I was hoping to quickly re-send the qemu_driver cleanups I've sent some time ago, now using Glib. I started by attempting to change the first VIR_AUTOUNREF() call in qemu_driver.c to g_autoptr(), which happens to be a virStorageSourcePtr type, then I realized that it wasn't that simple. Following up the instructions found on commit 16121a88a7, I started the conversion. Then 'make check' started to fail because some calls to virObjectRef/virObjectUnref were still remaining in the code, messing up stuff related with mirrorChain in qemu_blockjob.c. Turns out it was easier to burn through all the instances and change them to use GLib. This is being sent as RFC because x-I am aware that docs/hacking.html mentions that we shouldn't mix up certain GLib macros with Libvirt ones, thus I am uncertain of whether I have messed up or not. 'make check' works, did a few sanity checks with libvirtd as well. Hopefully this is somewhere near the mark. I intend to do such convertions from time to time, based on the cleanups I wanted to make in the qemu_driver file prior to the GLib introduction. Daniel Henrique Barboza (1): util: convert virStorageSource class to use GObject src/conf/domain_conf.c | 13 ++--- src/conf/snapshot_conf.c | 3 +- src/qemu/qemu_blockjob.c | 43 ++++++-------- src/qemu/qemu_domain.c | 6 +- src/qemu/qemu_driver.c | 14 ++--- src/qemu/qemu_hotplug.c | 3 +- src/qemu/qemu_migration.c | 2 +- src/storage/storage_backend_gluster.c | 2 +- src/storage/storage_util.c | 4 +- src/util/virstoragefile.c | 84 +++++++++++++-------------- src/util/virstoragefile.h | 9 ++- tests/qemublocktest.c | 6 +- tests/virstoragetest.c | 12 ++-- 13 files changed, 98 insertions(+), 103 deletions(-) -- 2.21.0

3 6

[libvirt] [PATCH v2 0/6] Enable ramfb parameter for mediated devices
by Jonathon Jongsma 15 Oct '19

15 Oct '19

This patch series is a continuation of a previous series that was already mostly merged. The one unmerged patch from the previous series is patch 6 in this series and has been rebased to git master. The other 5 patches are an attempt to address some things that Cole suggested in the previous review. I'm not sure whether I split the patches up too finely or not, but I'm happy to combine a couple of these patches if requested. Jonathon Jongsma (6): qemu: set domain capabilities for ramfb device qemu: use VIR_AUTOUNREF in qemuDomainDeviceDefValidate() qemu: fix domain device validation qemu: consolidate video validation qemu: unify domain caps validation for video devices qemu: add 'ramfb' attribute for mediated devices docs/formatdomain.html.in | 8 + docs/schemas/domaincommon.rng | 5 + src/conf/domain_capabilities.c | 17 ++- src/conf/domain_conf.c | 11 ++ src/conf/domain_conf.h | 1 + src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_command.c | 17 ++- src/qemu/qemu_domain.c | 142 +++++++++--------- src/qemu/qemu_process.c | 62 -------- .../domaincapsschemadata/qemu_3.0.0.s390x.xml | 1 + .../qemu_3.1.0.x86_64.xml | 1 + .../qemu_4.0.0.x86_64.xml | 1 + .../qemu_4.1.0.x86_64.xml | 1 + .../qemu_4.2.0.x86_64.xml | 1 + ...tdev-mdev-display-ramfb.x86_64-latest.args | 37 +++++ .../hostdev-mdev-display-ramfb.xml | 33 ++++ tests/qemuxml2argvtest.c | 1 + 17 files changed, 203 insertions(+), 138 deletions(-) create mode 100644 tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.x86_64-latest.args create mode 100644 tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.xml -- 2.21.0

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[libvirt] Fwd: libvirtd failing on MacOS in setgroups
by Marcus Furlong 15 Oct '19

15 Oct '19

Resend to libvir-list in case that is more appropriate: Hi, I get the following error when running libvirtd on MacOS as root: 2019-07-11 00:12:33.673+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-x86_64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument As a result `virsh capabilities` as root returns nothing: $ sudo virsh capabilities | grep qemu <baselabel type='qemu'>+0:+0</baselabel> whereas running as a regular user works fine: $ virsh capabilites | grep qemu <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> <domain type='qemu'/> and by extension, running VMs as regular user works fine via qemu:///session , but qemu:///system does not work. It seems like setgroups is failing: https://github.com/libvirt/libvirt/blob/v5.5.0/src/util/virutil.c#L1045-L10… Is this the expected behaviour? Full output below: $ sudo libvirtd 2019-07-11 00:12:33.379+0000: 123145573953536: info : libvirt version: 5.5.0 2019-07-11 00:12:33.379+0000: 123145573953536: warning : virProcessGetStartTime:1070 : Process start time of pid 49746 not available on this platform 2019-07-11 00:12:33.379+0000: 123145573953536: error : virSysinfoReadDMI:1172 : internal error: Failed to find path for dmidecode binary 2019-07-11 00:12:33.380+0000: 123145573953536: error : virFileFindHugeTLBFS:3734 : this function is not supported by the connection driver: virFileFindHugeTLBFS 2019-07-11 00:12:33.382+0000: 123145573953536: warning : virQEMUCapsInit:919 : Failed to get host CPU cache info 2019-07-11 00:12:33.401+0000: 123145573953536: error : virHostCPUGetTscInfo:1405 : Probing TSC is not supported on this platform: Function not implemented 2019-07-11 00:12:33.401+0000: 123145573953536: error : virExec:521 : Cannot find 'pm-is-supported' in path: No such file or directory 2019-07-11 00:12:33.401+0000: 123145573953536: warning : virQEMUCapsInit:926 : Failed to get host power management capabilities 2019-07-11 00:12:33.401+0000: 123145573953536: error : virNumaGetPages:988 : Operation not supported: page info is not supported on this platform 2019-07-11 00:12:33.401+0000: 123145573953536: warning : virQEMUCapsInit:933 : Failed to get pages info 2019-07-11 00:12:33.407+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-alpha for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.407+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-alpha: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-alpha for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.413+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-arm for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.413+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-arm: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-arm for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.419+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-arm for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.419+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-arm: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-arm for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.424+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-aarch64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.424+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-aarch64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-aarch64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.431+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-cris for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.431+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-cris: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-cris for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.437+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-i386 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.437+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-i386: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-i386 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.443+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-lm32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.443+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-lm32: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-lm32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.449+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-m68k for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.449+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-m68k: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-m68k for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.497+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-microblaze for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.497+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-microblaze: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-microblaze for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.503+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-microblazeel for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.503+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-microblazeel: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-microblazeel for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.509+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.509+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-mips: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.515+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mipsel for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.515+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-mipsel: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mipsel for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.521+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.521+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-mips64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.527+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips64el for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.527+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-mips64el: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-mips64el for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.533+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.533+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-ppc: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.571+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.571+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-ppc64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.576+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.576+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-ppc64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-ppc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.582+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-riscv32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.582+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-riscv32: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-riscv32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.588+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-riscv64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.588+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-riscv64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-riscv64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.594+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-s390x for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.594+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-s390x: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-s390x for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.600+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sh4 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.600+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-sh4: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sh4 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.605+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sh4eb for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.605+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-sh4eb: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sh4eb for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.612+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sparc for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.612+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-sparc: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sparc for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.619+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sparc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.619+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-sparc64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-sparc64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.667+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-unicore32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.667+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-unicore32: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-unicore32 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.673+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-x86_64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.673+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-x86_64: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-x86_64 for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.679+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-xtensa for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.679+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-xtensa: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-xtensa for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.685+0000: 123145573953536: error : qemuProcessQMPLaunch:8501 : internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-xtensaeb for probing: libvirt: error : cannot set supplemental groups: Invalid argument 2019-07-11 00:12:33.685+0000: 123145573953536: warning : virQEMUCapsLogProbeFailure:4578 : Failed to probe capabilities for /usr/local/bin/qemu-system-xtensaeb: internal error: Failed to start QEMU binary /usr/local/bin/qemu-system-xtensaeb for probing: libvirt: error : cannot set supplemental groups: Invalid argument -- Marcus Furlong

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[libvirt] [PATCH] qemu: fix EFI nvram removal on domain undefine
by Pavel Mores 15 Oct '19

15 Oct '19

When undefining a UEFI domain its nvram file has to be properly handled as well. It's mandatory to use one of --nvram and --keep-nvram options when 'virsh undefine <domain>' is issued for a UEFI domain. To fix the bug as reported, virsh should return an error message if neither option is used and the nvram file should be removed when --nvram is given. The cause of the problem is that when qemuDomainUndefineFlags() is invoked on an inactive domain the path to its nvram file is empty. This commit aims to fix this by formatting and filling in the path in time for the nvram removal code to run properly. https://bugzilla.redhat.com/show_bug.cgi?id=1751596 Signed-off-by: Pavel Mores <pmores(a)redhat.com> --- src/qemu/qemu_domain.c | 12 +++++++++--- src/qemu/qemu_domain.h | 4 ++++ src/qemu/qemu_driver.c | 20 +++++++++++++++----- 3 files changed, 28 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 35067c851f..1a0367cc27 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -15441,16 +15441,22 @@ qemuDomainDiskIsMissingLocalOptional(virDomainDiskDefPtr disk) } +int +qemuDomainNVRAMPathFormat(virQEMUDriverConfigPtr cfg, + virDomainDefPtr def, char **path) +{ + return virAsprintf(path, "%s/%s_VARS.fd", cfg->nvramDir, def->name); +} + int qemuDomainNVRAMPathGenerate(virQEMUDriverConfigPtr cfg, virDomainDefPtr def) { if (def->os.loader && def->os.loader->type == VIR_DOMAIN_LOADER_TYPE_PFLASH && - def->os.loader->readonly == VIR_TRISTATE_SWITCH_ON && + def->os.loader->readonly == VIR_TRISTATE_BOOL_YES && !def->os.loader->nvram) { - return virAsprintf(&def->os.loader->nvram, "%s/%s_VARS.fd", - cfg->nvramDir, def->name); + return qemuDomainNVRAMPathFormat(cfg, def, &def->os.loader->nvram); } return 0; diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 01a54d4265..07725c7cc4 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -1207,6 +1207,10 @@ qemuDomainIsUsingNoShutdown(qemuDomainObjPrivatePtr priv); bool qemuDomainDiskIsMissingLocalOptional(virDomainDiskDefPtr disk); +int +qemuDomainNVRAMPathFormat(virQEMUDriverConfigPtr cfg, + virDomainDefPtr def, char **path); + int qemuDomainNVRAMPathGenerate(virQEMUDriverConfigPtr cfg, virDomainDefPtr def); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index bc0ede2fb0..dcaadbdb52 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -7828,6 +7828,8 @@ qemuDomainUndefineFlags(virDomainPtr dom, int nsnapshots; int ncheckpoints; virQEMUDriverConfigPtr cfg = NULL; + char *nvram_path = NULL; + bool need_deallocate_nvram_path = false; virCheckFlags(VIR_DOMAIN_UNDEFINE_MANAGED_SAVE | VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA | @@ -7905,14 +7907,20 @@ qemuDomainUndefineFlags(virDomainPtr dom, } } - if (vm->def->os.loader && - vm->def->os.loader->nvram && - virFileExists(vm->def->os.loader->nvram)) { + if (vm->def->os.firmware == VIR_DOMAIN_OS_DEF_FIRMWARE_EFI) { + qemuDomainNVRAMPathFormat(cfg, vm->def, &nvram_path); + need_deallocate_nvram_path = true; + } else { + if (vm->def->os.loader) + nvram_path = vm->def->os.loader->nvram; + } + + if (nvram_path && virFileExists(nvram_path)) { if ((flags & VIR_DOMAIN_UNDEFINE_NVRAM)) { - if (unlink(vm->def->os.loader->nvram) < 0) { + if (unlink(nvram_path) < 0) { virReportSystemError(errno, _("failed to remove nvram: %s"), - vm->def->os.loader->nvram); + nvram_path); goto endjob; } } else if (!(flags & VIR_DOMAIN_UNDEFINE_KEEP_NVRAM)) { @@ -7948,6 +7956,8 @@ qemuDomainUndefineFlags(virDomainPtr dom, virDomainObjEndAPI(&vm); virObjectEventStateQueue(driver->domainEventState, event); virObjectUnref(cfg); + if (need_deallocate_nvram_path) + VIR_FREE(nvram_path); return ret; } -- 2.21.0

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