November 2009 - Devel - libvirt List Archives

[libvirt] [PATCH 0/2] Fix xen domain listing
by Daniel P. Berrange 12 Nov '09

12 Nov '09

These patches are a re-post of Jonas Eriksson's work from a couple of months ago, that we mistakenly forgot to commit. The first patch is unchanged, apart from being adjusted for new source code layout. The second patch is changed so that it checks against the hypervisor, not Xend, since using Xend has a very serious performance impact (as much as 1 second per domain queried has been seen) Daniel

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[libvirt] kvm network modes
by Rakotomandimby Mihamina 12 Nov '09

12 Nov '09

Hi all, On an ubuntu host, I have the network: virsh # net-dumpxml default <network> <name>default</name> <uuid>9af73579-2dea-d0a9-020d-a45b0526b07f</uuid> <forward mode='nat'/> <bridge name='virbr0' stp='on' forwardDelay='0' /> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254' /> </dhcp> </ip> </network> Would you now some doecumentation on non NATing configuration? I would like to give my guests public IP adresses. I create my guests using: virt-install --connect qemu:///system \ [...] \ --network=network:default where 'default' is the configuration above. -- Architecte Informatique chez Blueline/Gulfsat: Administration Systeme, Recherche & Developpement +261 33 11 207 36

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[libvirt] [PATCH 1/2] Add a new <nesting/> option in the domain config features list.
by Evan Broder 12 Nov '09

12 Nov '09

--- docs/formatdomain.html.in | 4 ++++ docs/schemas/domain.rng | 5 +++++ src/conf/domain_conf.c | 3 ++- src/conf/domain_conf.h | 1 + 4 files changed, 12 insertions(+), 1 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 72bd7b9..c4eed79 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -263,6 +263,7 @@ <pae/> <acpi/> <apic/> + <nesting/> </features> ...</pre> @@ -282,6 +283,9 @@ <dd>ACPI is useful for power management, for example, with KVM guests it is required for graceful shutdown to work. </dd> + <dt><code>nesting</code></dt> + <dd>Some hypervisors support nested hardware-supported + virtualization, allowing you to run VMs inside of VMs.</dd> </dl> <h3><a name="elementsTime">Time keeping</a></h3> diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index b75f17e..78a4504 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -1213,6 +1213,11 @@ <empty/> </element> </optional> + <optional> + <element name="nesting"> + <empty/> + </element> + </optional> </interleave> </element> </optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 918a5d7..653cba0 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -70,7 +70,8 @@ VIR_ENUM_IMPL(virDomainBoot, VIR_DOMAIN_BOOT_LAST, VIR_ENUM_IMPL(virDomainFeature, VIR_DOMAIN_FEATURE_LAST, "acpi", "apic", - "pae") + "pae", + "nesting") VIR_ENUM_IMPL(virDomainLifecycle, VIR_DOMAIN_LIFECYCLE_LAST, "destroy", diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index fadf43f..7306b0b 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -517,6 +517,7 @@ enum virDomainFeature { VIR_DOMAIN_FEATURE_ACPI, VIR_DOMAIN_FEATURE_APIC, VIR_DOMAIN_FEATURE_PAE, + VIR_DOMAIN_FEATURE_NESTING, VIR_DOMAIN_FEATURE_LAST }; -- 1.6.2.1

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[libvirt] VirtualBox and windows.
by Varghese Mathew 12 Nov '09

12 Nov '09

Does libvirt support running a virtualbox vm on windows.. ? Is there any limitations with this, vs. a linux environment? /v

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[libvirt] [PATCH] Fix error handling in qemuMonitorOpen
by Ryota Ozaki 12 Nov '09

12 Nov '09

* src/qemu/qemu_monitor.c: add error check for qemuMonitorOpenXXX --- src/qemu/qemu_monitor.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index dcd2dd7..2357734 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -474,6 +474,8 @@ qemuMonitorOpen(virDomainObjPtr vm, goto cleanup; } + if (mon->fd == -1) goto cleanup; + if (virSetCloseExec(mon->fd) < 0) { qemudReportError(NULL, NULL, NULL, VIR_ERR_INTERNAL_ERROR, "%s", _("Unable to set monitor close-on-exec flag")); -- 1.6.2.5

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[libvirt] [PATCH] Exclude numactl on s390[x]
by Daniel P. Berrange 12 Nov '09

12 Nov '09

The numactl package is not applicable for s390[x] arches, so do not enable it as a build dep. * libvirt.spec.in: Exclude numactl on s390[x] --- libvirt.spec.in | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/libvirt.spec.in b/libvirt.spec.in index 9238bdd..770a064 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -72,6 +72,10 @@ %define with_xen 0 %endif +# Numactl is not available on s390[x] +%ifarch s390 s390x +%define with_numactl 0 +%endif # RHEL doesn't ship OpenVZ, VBox, UML, OpenNebula, PowerHypervisor or ESX %if 0%{?rhel} -- 1.6.2.5

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[libvirt] [PATCH] Disable IPv6 socket auto-binding to IPv4 socket
by Daniel P. Berrange 12 Nov '09

12 Nov '09

Sometimes getaddrinfo returns IPv4 addresses before IPv4 addresses. IPv6 sockets default to attempting to bind to IPv4 addresses too. So if the IPv4 address is activated first, then binding to IPv6 will fail. * daemon/libvirtd.c: Bind to IPv6 and IPv4 addresses separately --- daemon/libvirtd.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 2fcd9a9..01c9bbc 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -615,6 +615,21 @@ remoteMakeSockets (int *fds, int max_fds, int *nfds_r, const char *node, const c int opt = 1; setsockopt (fds[*nfds_r], SOL_SOCKET, SO_REUSEADDR, &opt, sizeof opt); +#ifdef IPV6_V6ONLY + if (runp->ai_family == PF_INET6) { + int on = 1; + /* + * Normally on Linux an INET6 socket will bind to the INET4 + * address too. If getaddrinfo returns results with INET4 + * first though, this will result in INET6 binding failing. + * We can trivially cope with multiple server sockets, so + * we force it to only listen on IPv6 + */ + setsockopt(fds[*nfds_r], IPPROTO_IPV6,IPV6_V6ONLY, + (void*)&on, sizeof on); + } +#endif + if (bind (fds[*nfds_r], runp->ai_addr, runp->ai_addrlen) == -1) { if (errno != EADDRINUSE) { VIR_ERROR(_("bind: %s"), virStrerror (errno, ebuf, sizeof ebuf)); -- 1.6.2.5

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[libvirt] Mounting a bare-metal folder as a drive
by Adam Mooz 11 Nov '09

11 Nov '09

Hello List, Still working on getting the DVD drive to go, but I got another question. I'm attempting to ad a folder located on the bare-metal machine to the VM and have it appear as a drive (such as HDD), is this possible? I've looked over the documentation and it suggests this is only possible for USB devices or virtual disks, but not a folder. How would I go about adding a folder located on the bare-metal to the VM to appear as a hard drive but still be accessable to the bare metal machine? ----------------------------------------------------------------- Adam Mooz Adam.Mooz(a)gmail.com AdamMooz(a)me.com http://www.AdamMooz.com

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[libvirt] [PATCH] python bindings: override virDomainGetVcpus doc
by Dan Kenigsberg 11 Nov '09

11 Nov '09

--- python/libvirt-override-api.xml | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/python/libvirt-override-api.xml b/python/libvirt-override-api.xml index 148b89b..e7b5cbe 100644 --- a/python/libvirt-override-api.xml +++ b/python/libvirt-override-api.xml @@ -118,7 +118,7 @@ <arg name='domain' type='virDomainPtr' info='pointer to domain object'/> </function> <function name='virDomainGetVcpus' file='python'> - <info>Extract information about virtual CPUs of domain, store it in info array and also in cpumaps if this pointer is'nt NULL.</info> + <info>Extract information about virtual CPUs of domain. Return two lists: one with cpuinfo per vcpu, and the other with cpu affinity map per vcpu.</info> <return type='int' info='the number of info filled in case of success, -1 in case of failure.'/> <arg name='domain' type='virDomainPtr' info='pointer to domain object, or NULL for Domain0'/> </function> -- 1.6.5.2

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[libvirt] Possibly deadlock with tunnelled migration
by Cole Robinson 11 Nov '09

11 Nov '09

Hi Chris (and list), Playing with TUNNELLED migration, I'm hitting an issue. Take this example: VM URI = qemu+ssh://phys1/system destconn = qemu:///system invoking virDomainMigrate with a VM from the former URI, and destconn as the latter, we will deadlock. The qemu driver would be reopening it's local qemu:///system, and eventually lock up. We should probably add some sanity checking for the URI we plan to open. Aside from that, anyone have recommendations on the best way to handle the above situation? I'm currently improving the migration support in virt-manager, and if the TUNNELLED API requires opening a URI, it makes the remote-to-local migration case a bit annoying, because we would have to require the user to provide a remote accessible URI for the local system. Thanks, Cole

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