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[libvirt] [PATCH 0/3] Node device update lifecycle event as top level event
by Jovanka Gulicoska 15 Aug '16

15 Aug '16

Introduce node device update lifecycle as top level event. Series include API implementation, udev driver implementation, event-test implementation and virsh nodedev-event changes. Jovanka Gulicoska (3): Introduce node device update event as top level event virsh: nodedev-event update callback support event-test: add support node device update event API daemon/remote.c | 29 +++++++++++++++++ examples/object-events/event-test.c | 12 +++++++ include/libvirt/libvirt-nodedev.h | 1 + src/conf/node_device_event.c | 55 ++++++++++++++++++++++++++++++++ src/conf/node_device_event.h | 3 ++ src/libvirt_private.syms | 1 + src/node_device/node_device_udev.c | 2 ++ src/remote/remote_driver.c | 30 ++++++++++++++++++ src/remote/remote_protocol.x | 13 +++++++- src/remote_protocol-structs | 5 +++ tools/virsh-nodedev.c | 62 ++++++++++++++++++++++++++++++++----- 11 files changed, 204 insertions(+), 9 deletions(-) -- 2.7.4

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[libvirt] [PATCH] virsh: Fix core for cmdSecretGetValue
by John Ferlan 15 Aug '16

15 Aug '16

https://bugzilla.redhat.com/show_bug.cgi?id=1366611 When commit id 'cb2e3e50' reworked the cmdSecretGetValue call to use VIR_DISPOSE_STRING for base64, it neglected to initialize the base64 value to NULL since the cleanup: label could be reached prior to the base64 value being set or not. This resulted in a core dump, adding the initialization will avoid the issue. Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- tools/virsh-secret.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/virsh-secret.c b/tools/virsh-secret.c index 8588f4c..537bdd7 100644 --- a/tools/virsh-secret.c +++ b/tools/virsh-secret.c @@ -253,7 +253,7 @@ static bool cmdSecretGetValue(vshControl *ctl, const vshCmd *cmd) { virSecretPtr secret; - char *base64; + char *base64 = NULL; unsigned char *value; size_t value_size; bool ret = false; -- 2.7.4

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[libvirt] Drop support for old libvirt versions?
by Andrea Bolognani 15 Aug '16

15 Aug '16

A while ago, we agreed to drop support for QEMU versions older than 0.12.0, with the rationale that we should focus on operating systems that are still supported by the respective vendors, eg. RHEL/CentOS 6, Ubuntu 12.04 and SLES 11. Recently, when discussing how to ensure a certain change will not break migration with libvirt <= 0.9.4, I started wondering whether we should apply the same rationale to libvirt versions as well. Here's a quick run down of relevant libvirt versions: SLES 11 → ??? RHEL 6.0 → 0.8.1 Ubuntu 12.04 → 0.9.2 RHEL 6.8 → 0.10.2 Ubuntu 12.04.5 → 0.9.8 SLES 11 SP4 → 1.2.5 One thing I'm not clear about is whether or not SUSE, Red Hat and Canonical will support old minor releases or just the latest one. If the latter, we could safely drop support for anything older than 0.9.8, which incidentally would make the discussion referenced above entirely moot ;) In any case, having a well-defined cut-off point has been very useful when dealing with QEMU, so I think having one for libvirt itself would be beneficial too. Looking forward to your thoughts on this :) -- Andrea Bolognani / Red Hat / Virtualization

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[libvirt] [PATCH] qemu_command: don't modify heads for graphics device
by Pavel Hrdina 14 Aug '16

14 Aug '16

Setting heads to 0 in case that *max_outputs* is not supported while building command line doesn't have any real effect. It only removes *heads* attribute from live XML, but after restarting libvirt the default value is restored. Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com> --- src/qemu/qemu_command.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 55df23d..06f5091 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -4298,8 +4298,6 @@ qemuBuildDeviceVideoStr(const virDomainDef *def, virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS))) { if (video->heads) virBufferAsprintf(&buf, ",max_outputs=%u", video->heads); - } else { - video->heads = 0; } } else if (video->vram && ((video->type == VIR_DOMAIN_VIDEO_TYPE_VGA && -- 2.9.2

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[libvirt] libvirtd crash with host cpu model qemu64
by Jim Fehlig 13 Aug '16

13 Aug '16

I have an L1 nested VM with the following cpu # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s): 2 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 6 Model: 2 Model name: QEMU Virtual CPU version 0.14 Stepping: 3 CPU MHz: 3092.210 BogoMIPS: 6184.42 Virtualization: AMD-V Hypervisor vendor: KVM Virtualization type: full L1d cache: 64K L1i cache: 64K L2 cache: 512K NUMA node0 CPU(s): 0,1 Flags: fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx lm nopl pni cx16 popcnt hypervisor lahf_lm svm abm sse4a 3dnowprefetch vmmcall When starting an L2 VM with <cpu mode="host-model">, libvirtd in the L1 VM crashes Program received signal SIGSEGV, Segmentation fault. 0x00007ffff739bf33 in x86DataCpuid (cpuid=0x8, cpuid=0x8, data=data@entry=0x7fffb800ee78) at cpu/cpu_x86.c:287 287 for (i = 0; i < data->len; i++) { (gdb) bt f0 0x00007ffff739bf33 in x86DataCpuid (cpuid=0x8, cpuid=0x8, data=data@entry=0x7fffb800ee78) at cpu/cpu_x86.c:287 f1 virCPUx86DataAddCPUID (data=data@entry=0x7fffb800ee78, cpuid=0x8) at cpu/cpu_x86.c:355 f2 0x00007ffff739ef47 in x86Compute (host=<optimized out>, cpu=0x7fffb8000cc0, guest=0x7fffecca7348, message=<optimized out>) at cpu/cpu_x86.c:1580 f3 0x00007fffd2b38e53 in qemuBuildCpuModelArgStr (migrating=false, hasHwVirt=<synthetic pointer>, qemuCaps=0x7fffb8001040, buf=0x7fffecca7360, def=0x7fffc400ce20, driver=0x1c) at qemu/qemu_command.c:6283 f4 qemuBuildCpuCommandLine (cmd=cmd@entry=0x7fffb8002f60, driver=driver@entry=0x7fffc80882c0, def=def@entry=0x7fffc400ce20, qemuCaps=qemuCaps@entry=0x7fffb8001040, migrating=<optimized out>) at qemu/qemu_command.c:6445 In frame 2, &host_model->vendor->cpuid is passed to virCPUx86DataAddCPUID(), but (gdb) p *host_model $23 = {name = 0x7fffb800ec50 "qemu64", vendor = 0x0, signature = 0, data = { len = 2, data = 0x7fffb800e720}} With vendor = 0x0, &host_model->vendor->cpuid evaluates to 8, which is not a nice value to pass to virCPUx86DataAddCPUID(). I've hacked around the problem by checking for a non-null host->vendor before calling virCPUx86DataAddCPUID, but I get the feeling it is just that - a hack. Comments on the attached patch, or suggestions for an alternate fix, are kindly welcomed :-). Regards, Jim

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[libvirt] [PATCH 0/9] qemu: Reflect USB controller model in guest XML
by Andrea Bolognani 13 Aug '16

13 Aug '16

Patches 1-3 take care of some tiny nits; patches 4-7 clean up the test suite and add some new test cases that cover the code changed by subsequent patches. Patch 8 implements the feature advertised in the subject :) Patch 9 gets rid of some code that's no longer necessary after the changes. Andrea Bolognani (9): tests: qemuxml2argv: Remove useless GIC flags tests: qemuxml2argv: Fix usb-too-long-port-path-invalid tests: qemuxml2xml: Fix disk-mirror tests: qemuxml2xml: Use WHEN_BOTH for most tests tests: qemuxml2xml: Pass capabilities to DO_TEST() tests: qemuxml2xml: Use DO_TEST() for most tests tests: qemuxml2xml: Add some USB test cases qemu: domain: Reflect USB controller model in guest XML qemu: command: Simplify USB controller model selection src/qemu/qemu_command.c | 60 +- src/qemu/qemu_domain.c | 20 + tests/qemuxml2argvtest.c | 16 +- .../qemuxml2xmlout-ppc64-usb-controller-legacy.xml | 31 + .../qemuxml2xmlout-ppc64-usb-controller.xml | 31 + .../qemuxml2xmlout-usb-controller-default-q35.xml | 37 + .../qemuxml2xmlout-usb-controller-explicit-q35.xml | 37 + .../qemuxml2xmlout-usb-controller.xml | 27 + .../qemuxml2xmloutdata/qemuxml2xmlout-usb-none.xml | 25 + .../qemuxml2xmlout-usb-piix3-controller.xml | 27 + tests/qemuxml2xmltest.c | 932 ++++++++++----------- 11 files changed, 728 insertions(+), 515 deletions(-) create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-ppc64-usb-controller-legacy.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-ppc64-usb-controller.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-default-q35.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller-explicit-q35.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-controller.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-none.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-usb-piix3-controller.xml -- 2.7.4

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[libvirt] [PATCH 0/2] Couple of virschematest fixes
by Michal Privoznik 13 Aug '16

13 Aug '16

It's true that rewriting this into C made this test run faster. But maybe too much to my taste. Michal Privoznik (2): virschematest: Initialize @data virschematest: Make sure that validator is initialized tests/virschematest.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) -- 2.8.4

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[libvirt] [PATCH v2] schema: Don't validate paths
by Michal Privoznik 12 Aug '16

12 Aug '16

https://bugzilla.redhat.com/show_bug.cgi?id=1353296 On UNIX like systems there are no constraints on what characters can be in file/dir names (except for NULL, obviously). Moreover, some values that we think of as paths (e.g. disk source) are not necessarily paths at all. For instance, some hypervisors take that as an arbitrary identifier and corresponding file is then looked up by hypervisor in its table. Instead of trying to fix our regular expressions (and forgetting to include yet another character there), lets drop the validation completely. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- diff to v1: - Instead of adding some more chars to whitelist, drop it docs/schemas/basictypes.rng | 8 ++--- .../domainschemadata/domain-disk-source-space.xml | 36 ++++++++++++++++++++++ 2 files changed, 40 insertions(+), 4 deletions(-) create mode 100644 tests/domainschemadata/domain-disk-source-space.xml diff --git a/docs/schemas/basictypes.rng b/docs/schemas/basictypes.rng index 474ad77..1b4f980 100644 --- a/docs/schemas/basictypes.rng +++ b/docs/schemas/basictypes.rng @@ -247,25 +247,25 @@ <define name="filePath"> <data type="string"> - <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/%]+</param> + <param name="pattern">.+</param> </data> </define> <define name="dirPath"> <data type="string"> - <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/%]+</param> + <param name="pattern">.+</param> </data> </define> <define name="absFilePath"> <data type="string"> - <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/%,:]+</param> + <param name="pattern">/.+</param> </data> </define> <define name="absDirPath"> <data type="string"> - <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/%]*</param> + <param name="pattern">/.*</param> </data> </define> diff --git a/tests/domainschemadata/domain-disk-source-space.xml b/tests/domainschemadata/domain-disk-source-space.xml new file mode 100644 index 0000000..553b6c7 --- /dev/null +++ b/tests/domainschemadata/domain-disk-source-space.xml @@ -0,0 +1,36 @@ +<domain type='kvm'> + <name>dummy</name> + <uuid>aa86471a-e67b-41b1-8d7d-2dc37c2ac5ec</uuid> + <memory unit='KiB'>2097152</memory> + <currentMemory unit='KiB'>2097152</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type> + </os> + <features> + <acpi/> + <apic/> + </features> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <pm> + <suspend-to-mem enabled='no'/> + <suspend-to-disk enabled='no'/> + </pm> + <devices> + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <disk type='file' device='cdrom'> + <driver name='qemu' type='raw'/> + <source file='/a/path/with some space in it.iso'/> + <target dev='hda' bus='ide'/> + <readonly/> + <boot order='1'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='pci' index='0' model='pci-root'/> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + </devices> +</domain> -- 2.8.4

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[libvirt] [PATCH] conf: Fix initialization value of 'multi' in PCI address
by Xian Han Yu 12 Aug '16

12 Aug '16

Signed-off-by: Xian Han Yu <xhyubj(a)linux.vnet.ibm.com> --- src/conf/node_device_conf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index a23d8ef..96fdb6f 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -1163,7 +1163,7 @@ virNodeDevCapPCIDevIommuGroupParseXML(xmlXPathContextPtr ctxt, goto cleanup; for (i = 0; i < nAddrNodes; i++) { - virPCIDeviceAddress addr = { 0, 0, 0, 0, 0 }; + virPCIDeviceAddress addr = { 0, 0, 0, 0, false }; if (virPCIDeviceAddressParseXML(addrNodes[i], &addr) < 0) goto cleanup; if (VIR_ALLOC(pciAddr) < 0) -- 2.5.5

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[libvirt] [PATCH] schema: Allow spaces in paths
by Michal Privoznik 12 Aug '16

12 Aug '16

Since ages filesystems allowed to have space characters in filenames and even directory names. In fact, on all major filesystems out there you can have whatever character you like except NULL. There's no reason why we should forbid users to not have spaces in their filenames. Moreover, if we do that only on RNG schema level while our XML parser/formatter crunches that happily. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- docs/schemas/basictypes.rng | 8 ++--- .../domainschemadata/domain-disk-source-space.xml | 36 ++++++++++++++++++++++ 2 files changed, 40 insertions(+), 4 deletions(-) create mode 100644 tests/domainschemadata/domain-disk-source-space.xml diff --git a/docs/schemas/basictypes.rng b/docs/schemas/basictypes.rng index 474ad77..f2b7930 100644 --- a/docs/schemas/basictypes.rng +++ b/docs/schemas/basictypes.rng @@ -247,25 +247,25 @@ <define name="filePath"> <data type="string"> - <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/%]+</param> + <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/% ]+</param> </data> </define> <define name="dirPath"> <data type="string"> - <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/%]+</param> + <param name="pattern">[a-zA-Z0-9_\.\+\-\\&"'<>/% ]+</param> </data> </define> <define name="absFilePath"> <data type="string"> - <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/%,:]+</param> + <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/%,: ]+</param> </data> </define> <define name="absDirPath"> <data type="string"> - <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/%]*</param> + <param name="pattern">/[a-zA-Z0-9_\.\+\-\\&"'<>/% ]*</param> </data> </define> diff --git a/tests/domainschemadata/domain-disk-source-space.xml b/tests/domainschemadata/domain-disk-source-space.xml new file mode 100644 index 0000000..553b6c7 --- /dev/null +++ b/tests/domainschemadata/domain-disk-source-space.xml @@ -0,0 +1,36 @@ +<domain type='kvm'> + <name>dummy</name> + <uuid>aa86471a-e67b-41b1-8d7d-2dc37c2ac5ec</uuid> + <memory unit='KiB'>2097152</memory> + <currentMemory unit='KiB'>2097152</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type> + </os> + <features> + <acpi/> + <apic/> + </features> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <pm> + <suspend-to-mem enabled='no'/> + <suspend-to-disk enabled='no'/> + </pm> + <devices> + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <disk type='file' device='cdrom'> + <driver name='qemu' type='raw'/> + <source file='/a/path/with some space in it.iso'/> + <target dev='hda' bus='ide'/> + <readonly/> + <boot order='1'/> + <address type='drive' controller='0' bus='0' target='0' unit='0'/> + </disk> + <controller type='pci' index='0' model='pci-root'/> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + </devices> +</domain> -- 2.8.4

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