February 2013 - Devel - libvirt List Archives

[libvirt] [PATCH 00/13] Network disk improvements (NBD & libiscsi)
by Paolo Bonzini 21 Mar '13

21 Mar '13

This series improves support for NBD disks (patches 1-6), and adds support for the libiscsi userspace initiator (patches 7-13). Please review! Paolo Paolo Bonzini (13): qemu: fix use-after-free when parsing NBD disk qemu: do not support non-network disks without -drive qemu: rewrite NBD command-line builder and parser qemu: support named nbd exports qemu: support NBD with Unix sockets qemu: support URI syntax for NBD domain: add support for iscsi network disks qemu: add support for libiscsi qemu: support LUN numbers for iSCSI disks domain: make port optional for network disks secret: add iscsi to possible usage types domain: parse XML for iscsi authorization credentials qemu: pass iscsi authorization credentials docs/formatdomain.html.in | 42 +- docs/formatsecret.html.in | 12 + docs/schemas/domaincommon.rng | 37 +- docs/schemas/secret.rng | 10 + include/libvirt/libvirt.h.in | 1 + src/conf/domain_conf.c | 51 ++- src/conf/domain_conf.h | 3 + src/conf/secret_conf.c | 22 +- src/conf/secret_conf.h | 1 + src/qemu/qemu_command.c | 432 ++++++++++++++------- src/secret/secret_driver.c | 8 + tests/qemuargv2xmltest.c | 5 + .../qemuxml2argv-disk-drive-network-gluster.args | 2 +- ...qemuxml2argv-disk-drive-network-iscsi-auth.args | 1 + .../qemuxml2argv-disk-drive-network-iscsi-auth.xml | 31 ++ .../qemuxml2argv-disk-drive-network-iscsi.args | 1 + .../qemuxml2argv-disk-drive-network-iscsi.xml | 34 ++ ...qemuxml2argv-disk-drive-network-nbd-export.args | 5 + .../qemuxml2argv-disk-drive-network-nbd-export.xml | 33 ++ ...ml2argv-disk-drive-network-nbd-ipv6-export.args | 5 + ...xml2argv-disk-drive-network-nbd-ipv6-export.xml | 33 ++ .../qemuxml2argv-disk-drive-network-nbd-ipv6.args | 5 + .../qemuxml2argv-disk-drive-network-nbd-ipv6.xml | 33 ++ .../qemuxml2argv-disk-drive-network-nbd-unix.args | 5 + .../qemuxml2argv-disk-drive-network-nbd-unix.xml | 33 ++ tests/qemuxml2argvtest.c | 12 + tests/qemuxml2xmltest.c | 7 + 27 files changed, 687 insertions(+), 177 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-iscsi-auth.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-iscsi-auth.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-iscsi.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-iscsi.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-export.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-ipv6-export.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-ipv6-export.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-ipv6.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-ipv6.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-unix.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-drive-network-nbd-unix.xml -- 1.8.1.2

4 62

[libvirt] [[PATCHv2]] Add support for qxl.revision in domain XML
by Christophe Fergeau 15 Mar '13

15 Mar '13

QXL devices have an associated 'revision' which is raised when new features have been introduced which would break migration to older versions. This commit makes it possible to set this revision as QEMU sometimes support newer QXL revisions than what it defaults to. --- docs/formatdomain.html.in | 4 +++- docs/schemas/domaincommon.rng | 5 +++++ src/conf/domain_conf.c | 20 ++++++++++++++++++++ src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 8 ++++++++ .../qemuxml2argv-graphics-spice-compression.args | 3 ++- .../qemuxml2argv-graphics-spice-compression.xml | 4 ++-- .../qemuxml2argv-graphics-spice-qxl-vga.args | 3 ++- .../qemuxml2argv-graphics-spice-qxl-vga.xml | 4 ++-- .../qemuxml2argv-graphics-spice.args | 3 ++- .../qemuxml2argvdata/qemuxml2argv-graphics-spice.xml | 4 ++-- 11 files changed, 49 insertions(+), 10 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index a9003d7..bcdd90f 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -3584,7 +3584,9 @@ qemu-kvm -net nic,model=? /dev/null 1.0.2) is allowed for "qxl" type only and specifies the size of the primary bar, while <code>vram</code> specifies the secondary bar size. If "ram" or "vram" are not supplied a default - value is used. + value is used. The optional attribute <code>revision</code> (since 1.0.3) specifies the revision of + the QXL device, newer revisions provide more functionality. </dd> <dt><code>model</code></dt> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 63be4aa..57128ab 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -2283,6 +2283,11 @@ <ref name="unsignedInt"/> </attribute> </optional> + <optional> + <attribute name="revision"> + <ref name="unsignedInt"/> + </attribute> + </optional> </group> </choice> <optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 0c75838..f4f273c 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -7646,6 +7646,7 @@ virDomainVideoDefParseXML(const xmlNodePtr node, char *vram = NULL; char *ram = NULL; char *primary = NULL; + char *revision = NULL; if (VIR_ALLOC(def) < 0) { virReportOOMError(); @@ -7661,6 +7662,7 @@ virDomainVideoDefParseXML(const xmlNodePtr node, ram = virXMLPropString(cur, "ram"); vram = virXMLPropString(cur, "vram"); heads = virXMLPropString(cur, "heads"); + revision = virXMLPropString(cur, "revision"); if ((primary = virXMLPropString(cur, "primary")) != NULL) { if (STREQ(primary, "yes")) @@ -7713,6 +7715,19 @@ virDomainVideoDefParseXML(const xmlNodePtr node, def->vram = virDomainVideoDefaultRAM(dom, def->type); } + if (revision) { + if (def->type != VIR_DOMAIN_VIDEO_TYPE_QXL) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("revision attribute only supported for type of qxl")); + goto error; + } + if (virStrToLong_ui(revision, NULL, 10, &def->revision) < 0) { + virReportError(VIR_ERR_XML_ERROR, + _("cannot parse video revision '%s'"), revision); + goto error; + } + } + if (heads) { if (virStrToLong_ui(heads, NULL, 10, &def->heads) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, @@ -7730,6 +7745,7 @@ virDomainVideoDefParseXML(const xmlNodePtr node, VIR_FREE(ram); VIR_FREE(vram); VIR_FREE(heads); + VIR_FREE(revision); return def; @@ -7739,6 +7755,8 @@ error: VIR_FREE(ram); VIR_FREE(vram); VIR_FREE(heads); + VIR_FREE(revision); + return NULL; } @@ -13632,6 +13650,8 @@ virDomainVideoDefFormat(virBufferPtr buf, virBufferAsprintf(buf, " heads='%u'", def->heads); if (def->primary) virBufferAddLit(buf, " primary='yes'"); + if (def->revision) + virBufferAsprintf(buf, " revision='%u'", def->revision); if (def->accel) { virBufferAddLit(buf, ">\n"); virDomainVideoAccelDefFormat(buf, def->accel); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 4ffa4aa..1d7951b 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1174,6 +1174,7 @@ struct _virDomainVideoDef { unsigned int ram; /* kibibytes (multiples of 1024) */ unsigned int vram; /* kibibytes (multiples of 1024) */ unsigned int heads; + unsigned int revision; bool primary; virDomainVideoAccelDefPtr accel; virDomainDeviceInfo info; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index dee493f..5164bd5 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3567,6 +3567,9 @@ qemuBuildDeviceVideoStr(virDomainVideoDefPtr video, /* QEMU accepts bytes for vram_size. */ virBufferAsprintf(&buf, ",vram_size=%u", video->vram * 1024); + + if (video->revision != 0) + virBufferAsprintf(&buf, ",revision=%u", video->revision); } if (qemuBuildDeviceAddressStr(&buf, &video->info, qemuCaps) < 0) @@ -6612,6 +6615,11 @@ qemuBuildCommandLine(virConnectPtr conn, virCommandAddArgFormat(cmd, "%s.vram_size=%u", dev, vram * 1024); } + if (def->videos[0]->revision) { + virCommandAddArg(cmd, "-global"); + virCommandAddArgFormat(cmd, "%s.revision=%u", + dev, def->videos[0]->revision); + } } } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.args index 59f064b..05f5579 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.args @@ -7,5 +7,6 @@ image-compression=auto_glz,jpeg-wan-compression=auto,\ zlib-glz-wan-compression=auto,\ playback-compression=on,streaming-video=filter -vga \ qxl -global qxl.ram_size=67108864 -global qxl.vram_size=18874368 \ --device qxl,id=video1,ram_size=67108864,vram_size=33554432,bus=pci.0,addr=0x4 \ +-global qxl.revision=4 \ +-device qxl,id=video1,ram_size=67108864,vram_size=33554432,revision=4,bus=pci.0,addr=0x4 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.xml index a8c4ad8..2dc5776 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-compression.xml @@ -31,10 +31,10 @@ <streaming mode='filter'/> </graphics> <video> - <model type='qxl' ram='65536' vram='18432' heads='1'/> + <model type='qxl' ram='65536' vram='18432' heads='1' revision='4'/> </video> <video> - <model type='qxl' ram='65536' vram='32768' heads='1'/> + <model type='qxl' ram='65536' vram='32768' heads='1' revision='4'/> </video> <memballoon model='virtio'/> </devices> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args index ef499e6..0b08038 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.args @@ -4,5 +4,6 @@ unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb -hda \ /dev/HostVG/QEMUGuest1 -spice port=5903,tls-port=5904,addr=127.0.0.1,\ x509-dir=/etc/pki/libvirt-spice,tls-channel=main,plaintext-channel=inputs -vga \ qxl -global qxl-vga.ram_size=67108864 -global qxl-vga.vram_size=33554432 \ --device qxl,id=video1,ram_size=67108864,vram_size=67108864,bus=pci.0,addr=0x4 \ +-global qxl-vga.revision=4 \ +-device qxl,id=video1,ram_size=67108864,vram_size=67108864,revision=4,bus=pci.0,addr=0x4 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml index 563d371..3cd0c42 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice-qxl-vga.xml @@ -28,10 +28,10 @@ <channel name='inputs' mode='insecure'/> </graphics> <video> - <model type='qxl' ram='65536' vram='32768' heads='1'/> + <model type='qxl' ram='65536' vram='32768' heads='1' revision='4'/> </video> <video> - <model type='qxl' ram='65536' vram='65536' heads='1'/> + <model type='qxl' ram='65536' vram='65536' heads='1' revision='4'/> </video> <memballoon model='virtio'/> </devices> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args index d7cfae0..082eaf7 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.args @@ -6,5 +6,6 @@ x509-dir=/etc/pki/libvirt-spice,tls-channel=default,tls-channel=main,plaintext-c image-compression=auto_glz,jpeg-wan-compression=auto,zlib-glz-wan-compression=auto,\ playback-compression=on,streaming-video=filter,disable-copy-paste -vga \ qxl -global qxl.ram_size=67108864 -global qxl.vram_size=18874368 \ --device qxl,id=video1,ram_size=67108864,vram_size=33554432,bus=pci.0,addr=0x4 \ +-global qxl.revision=4 \ +-device qxl,id=video1,ram_size=67108864,vram_size=33554432,revision=4,bus=pci.0,addr=0x4 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml index 9a36660..e99dbc8 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-graphics-spice.xml @@ -34,10 +34,10 @@ <clipboard copypaste='no'/> </graphics> <video> - <model type='qxl' ram='65536' vram='18432' heads='1'/> + <model type='qxl' ram='65536' vram='18432' heads='1' revision='4'/> </video> <video> - <model type='qxl' ram='65536' vram='32768' heads='1'/> + <model type='qxl' ram='65536' vram='32768' heads='1' revision='4'/> </video> <memballoon model='virtio'/> </devices> -- 1.8.1.2

1 1

Re: [libvirt] if_bridge.h: include in6.h for struct in6_addr use
by Thomas Backlund 13 Mar '13

13 Mar '13

Thomas Backlund skrev 13.1.2013 20:38: > patch both inline and attached as thunderbird tends to mess up ... > ----- > > if_bridge.h uses struct in6_addr ip6; but does not include the in6.h > header. > > Found by trying to build libvirt and connman against 3.8-rc3 headers. > Ok, ignore this patch, it's not the correct fix as it introduces redefinitions... Btw, the error that I hit that made me suggest this fix was libvirt config check bailing out: config.log:/usr/include/linux/if_bridge.h:173:20: error: field 'ip6' has incomplete type > Reported-by: Colin Guthrie <colin(a)mageia.org> > Reported-by: Christiaan Welvaart <cjw(a)daneel.dyndns.org> > Signed-off-by: Thomas Backlund <tmb(a)mageia.org> > > -- > > diff -Nurp linux-3.8-rc3/include/uapi/linux/if_bridge.h > linux-3.8-rc3.fix/include/uapi/linux/if_bridge.h > --- linux-3.8-rc3/include/uapi/linux/if_bridge.h 2013-01-13 > 20:09:54.257271755 +0200 > +++ linux-3.8-rc3.fix/include/uapi/linux/if_bridge.h 2013-01-13 > 20:15:04.153676151 +0200 > @@ -14,6 +14,7 @@ > #define _UAPI_LINUX_IF_BRIDGE_H > > #include <linux/types.h> > +#include <linux/in6.h> > > #define SYSFS_BRIDGE_ATTR "bridge" > #define SYSFS_BRIDGE_FDB "brforward" > > > ----- > Thomas > -- Thomas

9 14

[libvirt] [PATCH v3 0/4] qemu: -dtb option support
by Olivia Yin 13 Mar '13

13 Mar '13

Sometime QEMU need load specific device tree binary images. These patches provide -dtb option support and update docs/tests. Olivia Yin (4): QEMU: add -dtb option support qemu: add dtb capability docs: add -dtb option support to QEMU tests: add dtb test case src/conf/domain_conf.c | 4 ++++ src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 6 ++++++ src/qemu/qemu_capabilities.c | 3 +++ src/qemu/qemu_capabilities.h | 1 + docs/formatdomain.html.in | 5 +++++ docs/schemas/domaincommon.rng | 5 +++++ tests/qemuxml2argvdata/qemuxml2argv-ppc-dtb.args | 1 + tests/qemuxml2argvdata/qemuxml2argv-ppc-dtb.xml | 28 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 2 +

4 10

[libvirt] [PATCH v4 0/4] add pci-bridge support
by liguang 11 Mar '13

11 Mar '13

Now, it's impossible to arrange devices into multi-pci-bus, for example: <sound model='ac97'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x1' slot='0x02' function='0x0'/> </video> libvirt will complain about "bus != 0", fortunately, qemu supports pci-to-pci bridge, if we want to use multi-pci-bus, we can define 2 pci bridge controllers, then attach 1 to the other as a subordinate pci-bus, so, 2 pci-buses appear. for example: <controller type='pci-bridge' index='0'/> <controller type='pci-bridge' index='1'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <sound model='ac97'> <address type='pci' domain='0x0000' bus='0x01' slot='0x02' function='0x0'/> </sound> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> src/conf/domain_conf.c | 98 ++++- src/conf/domain_conf.h | 1 + docs/schemas/domaincommon.rng | 1 + src/qemu/qemu_capabilities.c | 4 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 43 ++++++++++++++++++++----- 6 files changed, 126 insertions(+), 22 deletions(-)

6 19

[libvirt] [PATCH] Add NUMA memory information to virsh capabilities output.
by Dusty Mabe 08 Mar '13

08 Mar '13

Hi, This is a follow up to a previous proposed patch that added NUMA memory and CPU thread siblings information to virsh capabilities outout (https://www.redhat.com/archives/libvir-list/2012-November/msg00449.html) Since in a recent commit the thread siblings information was added (http://libvirt.org/git/?p=libvirt.git;a=commit;h=828820e2d) I have modified my patch to just add the NUMA memory information. An example of the output from virsh capabilities looks like the following text: <topology> <cells num='2'> <cell id='0'> <memory unit='KiB'>67073420</memory> <cpus num='16'> <cpu id='0' socket_id='0' core_id='0' siblings='0,16'/> <cpu id='1' socket_id='0' core_id='1' siblings='1,17'/> ... ... </cpus> </cell> Dusty Mabe Dusty Mabe (1): Add NUMA memory information to virsh capabilities output. docs/schemas/capability.rng | 10 ++++ src/conf/capabilities.c | 8 +++ src/conf/capabilities.h | 2 + src/nodeinfo.c | 64 +++++++++++++++++++++- src/test/test_driver.c | 2 +- src/xen/xend_internal.c | 2 +- tests/capabilityschemadata/caps-test3.xml | 88 +++++++++++++++++++++++++++++++ 7 files changed, 173 insertions(+), 3 deletions(-) create mode 100644 tests/capabilityschemadata/caps-test3.xml -- 1.7.11.7

3 8

[libvirt] [PATCH] Fix starting qemu instances when apparmor driver is enabled
by Jim Fehlig 08 Mar '13

08 Mar '13

With the apparmor security driver enabled, qemu instances fail to start # grep ^security_driver /etc/libvirt/qemu.conf security_driver = "apparmor" # virsh start test-kvm error: Failed to start domain test-kvm error: internal error security label already defined for VM The model field of virSecurityLabelDef object is always populated by virDomainDefGetSecurityLabelDef(), so remove the check for a NULL model when verifying if a label is already defined for the instance. Checking for a NULL model and populating it later in AppArmorGenSecurityLabel() has been left in the code to be consistent with virSecuritySELinuxGenSecurityLabel(). --- src/security/security_apparmor.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/src/security/security_apparmor.c b/src/security/security_apparmor.c index ddc1fe4..2e6a57f 100644 --- a/src/security/security_apparmor.c +++ b/src/security/security_apparmor.c @@ -436,8 +436,7 @@ AppArmorGenSecurityLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED, return rc; } - if ((secdef->label) || - (secdef->model) || (secdef->imagelabel)) { + if (secdef->label || secdef->imagelabel) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("security label already defined for VM")); @@ -461,8 +460,7 @@ AppArmorGenSecurityLabel(virSecurityManagerPtr mgr ATTRIBUTE_UNUSED, goto err; } - secdef->model = strdup(SECURITY_APPARMOR_NAME); - if (!secdef->model) { + if (!secdef->model && !(secdef->model = strdup(SECURITY_APPARMOR_NAME))) { virReportOOMError(); goto err; } -- 1.8.0.1

3 9

[libvirt] [PATCH 00/16] Add ability fill driver specific defaults when parsing the XML
by Peter Krempa 05 Mar '13

05 Mar '13

This monster series cleans up a ton of stuff and then adds the ability to fill driver specific defaults by means of a callback. The usage is demonstrated on automaticaly filling default NIC type with qemu. The long term aim is to move all validations and default settings out of the parser. Peter Krempa (16): conf: Improve core dump config error message qemu: Refactor error paths in virQEMUDriverCreateCapabilities conf: Ensure that new devices are added to conf copy function conf: Fix label naming in virDomainDefFormatInternal conf: Reformat many function headers in domain_conf.c conf: Refactor cpumask handling conf: whitespace cleanups and refactors with no semantic impact conf: Refactor ABI stability checking and break long lines conf: Make virDomainDeviceInfoIterate usable without os type conf: Add separate defaults addition and validation for XML parsing qemu: Implement the device parse callback and use it for interfaces tests: add to the tests and fix fallout qemu_command: Clean up default model passing conf: Don't add default controllers in the XML parser conf: Simplify cputune parameter retrieval conf: Move validation of domain title src/conf/capabilities.h | 6 + src/conf/domain_conf.c | 1177 ++++++++++---------- src/conf/domain_conf.h | 4 +- src/qemu/qemu_command.c | 14 +- src/qemu/qemu_conf.c | 18 +- src/qemu/qemu_domain.c | 23 + src/qemu/qemu_domain.h | 1 + .../qemuxml2argv-net-bandwidth.xml | 1 + .../qemuxml2argvdata/qemuxml2argv-net-client.args | 6 +- .../qemuxml2argv-net-eth-ifname.args | 6 +- .../qemuxml2argv-net-eth-ifname.xml | 1 + .../qemuxml2argv-net-eth-names.args | 8 +- tests/qemuxml2argvdata/qemuxml2argv-net-eth.args | 6 +- tests/qemuxml2argvdata/qemuxml2argv-net-eth.xml | 1 + .../qemuxml2argvdata/qemuxml2argv-net-hostdev.xml | 1 + tests/qemuxml2argvdata/qemuxml2argv-net-mcast.args | 6 +- .../qemuxml2argv-net-openvswitch.xml | 1 + .../qemuxml2argvdata/qemuxml2argv-net-server.args | 6 +- tests/qemuxml2argvdata/qemuxml2argv-net-user.args | 5 +- tests/qemuxml2argvdata/qemuxml2argv-net-user.xml | 1 + .../qemuxml2argv-net-virtio-network-portgroup.xml | 2 + .../qemuxml2xmlout-graphics-spice-timeout.xml | 1 + tests/testutilsqemu.c | 1 + 23 files changed, 663 insertions(+), 633 deletions(-) -- 1.8.1.1

4 38

[libvirt] [PATCHv4] virtio-rng: Add rate limiting options for virtio-RNG
by Peter Krempa 05 Mar '13

05 Mar '13

Qemu's implementation of virtio RNG supports rate limiting of the entropy used. This patch exposes the option to tune this functionality. This patch is based on qemu commit 904d6f588063fb5ad2b61998acdf1e73fb4 The rate limiting is exported in the XML as: <devices> ... <rng model='virtio'> <rate period='1234'>4321</rate> <backend model='random'/> </rng> ... --- Notes: Version 4: - Reword docs - state it is available since 1.0.4 as the tree is frozen and this was actually never acked before Version 3: - State the time unit in docs Version 2: - Qemu uses bytes/period, adapt the value according to that docs/formatdomain.html.in | 13 +++++++++++++ docs/schemas/domaincommon.rng | 18 +++++++++++++++++- src/conf/domain_conf.c | 17 +++++++++++++++++ src/conf/domain_conf.h | 2 ++ src/qemu/qemu_command.c | 9 +++++++++ .../qemuxml2argv-virtio-rng-random.args | 2 +- .../qemuxml2argv-virtio-rng-random.xml | 1 + 7 files changed, 60 insertions(+), 2 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 1835b39..1c6c73e 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -4280,6 +4280,7 @@ qemu-kvm -net nic,model=? /dev/null ... <devices> <rng model='virtio'> + <rate period="2000">1234</rate> <backend model='random'>/dev/random</backend>  <backend model='egd' type='udp'> @@ -4302,6 +4303,18 @@ qemu-kvm -net nic,model=? /dev/null <li>'virtio' — supported by qemu and virtio-rng kernel module</li> </ul> </dd> + <dt><code>rate</code></dt> + <dd> + + The optional <code>rate</code> element allows limiting the rate at + which entropy can be consumed from the source. An optional + <code>period</code> attribute specifies the duration of a period in + milliseconds; if omitted, the period is taken as 1000 milliseconds + (1 second). The element contents specify how many bits are permitted + per period. Drivers may enforce a minimum rate, and may round the + rate down to a minimum granularity. + + </dd> <dt><code>backend</code></dt> <dd> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index e7231cc..172926c 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -3500,7 +3500,12 @@ <value>virtio</value> </choice> </attribute> - <ref name="rng-backend"/> + <interleave> + <ref name="rng-backend"/> + <optional> + <ref name="rng-rate"/> + </optional> + </interleave> </element> </define> @@ -3524,6 +3529,17 @@ </element> </define> + <define name="rng-rate"> + <element name="rate"> + <optional> + <attribute name="period"> + <ref name="positiveInteger"/> + </attribute> + </optional> + <ref name="positiveInteger"/> + </element> + </define> + <define name="usbmaster"> <element name="master"> <attribute name="startport"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 995cf0c..f556e4c 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -7399,6 +7399,17 @@ virDomainRNGDefParseXML(const xmlNodePtr node, ctxt->node = node; + if (virXPathUInt("string(./rate)", ctxt, &def->rate) < -1) { + virReportError(VIR_ERR_XML_ERROR, "%s", _("invalid RNG rate value")); + goto error; + } + + if (def->rate > 0 && + virXPathUInt("string(./rate/@period)", ctxt, &def->period) < -1) { + virReportError(VIR_ERR_XML_ERROR, "%s", _("invalid RNG period value")); + goto error; + } + if ((nbackends = virXPathNodeSet("./backend", ctxt, &backends)) < 0) goto error; @@ -13708,6 +13719,12 @@ virDomainRNGDefFormat(virBufferPtr buf, const char *backend = virDomainRNGBackendTypeToString(def->backend); virBufferAsprintf(buf, " <rng model='%s'>\n", model); + if (def->rate) { + virBufferAddLit(buf, " <rate"); + if (def->period) + virBufferAsprintf(buf, " period='%u'", def->period); + virBufferAsprintf(buf, ">%u</rate>\n", def->rate); + } virBufferAsprintf(buf, " <backend model='%s'", backend); switch ((enum virDomainRNGBackend) def->backend) { diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 5828ae2..1546f21 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1721,6 +1721,8 @@ enum virDomainRNGBackend { struct _virDomainRNGDef { int model; int backend; + unsigned int rate; /* bits per period */ + unsigned int period; /* milliseconds */ union { char *file; /* file name for 'random' source */ diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 1c9bfc9..6fcc093 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -4255,6 +4255,15 @@ qemuBuildRNGDeviceArgs(virCommandPtr cmd, virBufferAsprintf(&buf, "virtio-rng-pci,rng=%s", dev->info.alias); + if (dev->rate > 0) { + /* qemu uses bytes */ + virBufferAsprintf(&buf, ",max-bytes=%u", dev->rate / 8); + if (dev->period) + virBufferAsprintf(&buf, ",period=%u", dev->period); + else + virBufferAddLit(&buf, ",period=1000"); + } + if (qemuBuildDeviceAddressStr(&buf, &dev->info, qemuCaps) < 0) goto cleanup; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args b/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args index ad27132..4a0437b 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.args @@ -3,4 +3,4 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu \ -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \ -object 'rng-random,id=rng0,filename=/test/ph<ile' \ --device virtio-rng-pci,rng=rng0,bus=pci.0,addr=0x4 +-device virtio-rng-pci,rng=rng0,max-bytes=100,period=1234,bus=pci.0,addr=0x4 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.xml b/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.xml index 0658f4b..3899408 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-rng-random.xml @@ -17,6 +17,7 @@ <controller type='usb' index='0'/> <memballoon model='virtio'/> <rng model='virtio'> + <rate period='1234'>800</rate> <backend model='random'>/test/ph<ile</backend> </rng> </devices> -- 1.8.1.1

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[libvirt] [PATCH 0/8] Web page updates/changes
by John Ferlan 04 Mar '13

04 Mar '13

I was [t]asked to make updates to the api webpage including an example of a code path from application into the driver. As I started on the task I found that the api webpage first needed a couple of updates just to fill in what seems to have been missing information. As I went through the various pages I realized that the 'better' location for the example code path seemed to be the internals page and thus I added it there. My simple example (hah!) was the virConnectOpen code path - I figured for a intro- duction to the internals web page - it'd be a good place to start. While I was doing this I used the hellolibvirt example a bit and based on information found on the 'api' page I added some more calls into the example to print network and disk information as well as more domain data. Finally while going through the pages I found a couple of places where drv pages weren't referenced although they were available, so I updated those (phyp and parallels). Hopefully I've figured things out correctly, but I'm sure if I have something a bit wrong someone will correct me. Making the figure was quite frustrating as xfig is a bit less forgiving than say office writer. John Ferlan (8): hellolibvirt: Update hellolibvirt example api: Reword objects exposed section api: Reword and clean lists for object description api: Complete list of function and naming conventions api: Add text and references for drivers section api: Add text and references for daemon Add references for phyp and parallels internals: Update to include RPC and Lock links and add new data docs/api.html.in | 261 +++++++++++++++++++++++++---------- docs/drivers.html.in | 1 + docs/index.html.in | 6 + docs/internals.html.in | 102 +++++++++++++- docs/libvirt-virConnect-example.fig | 58 ++++++++ docs/libvirt-virConnect-example.png | Bin 0 -> 10464 bytes docs/sitemap.html.in | 8 ++ examples/hellolibvirt/hellolibvirt.c | 201 +++++++++++++++++++++++---- 8 files changed, 530 insertions(+), 107 deletions(-) create mode 100644 docs/libvirt-virConnect-example.fig create mode 100644 docs/libvirt-virConnect-example.png -- 1.7.11.7

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