June 2011 - Devel - libvirt List Archives

[libvirt] [PATCH] Replace @SYSCONFDIR@ with ::SYSCONFDIR:: to avoid syntax-check warning
by Daniel P. Berrange 22 Jun '11

22 Jun '11

make syntax-check complains if any Makefile.am uses the old style @FOO@ for replacement, rather than $(FOO). Unfortunately the tools/Makefile.am intentionally uses the @FOO@ syntax for generating some scripts. Currently these are whitelisted in cfg.mk, but adding more to this whitelist makes the entire check rather worthless. This changes the tools/ directory to use ::FOO:: as the replacement syntax for virt-pki-validate.in and virt-xml-validate.in * tools/Makefile.am, tools/virt-pki-validate.in tools/virt-xml-validate.in: Change @FOO@ to ::FOO:: * cfg.mk: Remove _makefile_at_at_check_exceptions --- cfg.mk | 3 --- tools/Makefile.am | 4 ++-- tools/virt-pki-validate.in | 2 +- tools/virt-xml-validate.in | 2 +- 4 files changed, 4 insertions(+), 7 deletions(-) diff --git a/cfg.mk b/cfg.mk index 5d3ef26..c2230b8 100644 --- a/cfg.mk +++ b/cfg.mk @@ -581,9 +581,6 @@ _autogen: $(srcdir)/autogen.sh ./config.status -# Exempt @...@ uses of these symbols. -_makefile_at_at_check_exceptions = ' && !/(SCHEMA|SYSCONF)DIR/' - # regenerate HACKING as part of the syntax-check syntax-check: $(top_srcdir)/HACKING diff --git a/tools/Makefile.am b/tools/Makefile.am index 826674a..7a1a5c6 100644 --- a/tools/Makefile.am +++ b/tools/Makefile.am @@ -23,14 +23,14 @@ dist_man1_MANS = virt-xml-validate.1 virt-pki-validate.1 virsh.1 virt-xml-validate: virt-xml-validate.in Makefile - $(AM_V_GEN)sed -e 's,@SCHEMADIR@,$(pkgdatadir)/schemas,' < $< > $@ \ + $(AM_V_GEN)sed -e 's,::SCHEMADIR::,$(pkgdatadir)/schemas,' < $< > $@ \ || (rm $@ && exit 1) && chmod +x $@ virt-xml-validate.1: virt-xml-validate.in $(AM_V_GEN)$(POD2MAN) $< $(srcdir)/$@ virt-pki-validate: virt-pki-validate.in Makefile - $(AM_V_GEN)sed -e 's,@SYSCONFDIR@,$(sysconfdir),' < $< > $@ \ + $(AM_V_GEN)sed -e 's,::SYSCONFDIR::,$(sysconfdir),' < $< > $@ \ || (rm $@ && exit 1) && chmod +x $@ virt-pki-validate.1: virt-pki-validate.in diff --git a/tools/virt-pki-validate.in b/tools/virt-pki-validate.in index 01825d1..f429d77 100755 --- a/tools/virt-pki-validate.in +++ b/tools/virt-pki-validate.in @@ -25,7 +25,7 @@ echo Found "$CERTOOL" # # Check the directory structure # -SYSCONFDIR="@SYSCONFDIR@" +SYSCONFDIR="::SYSCONFDIR::" PKI="$SYSCONFDIR/pki" if [ ! -d "$PKI" ] then diff --git a/tools/virt-xml-validate.in b/tools/virt-xml-validate.in index 1959261..33f6c0f 100644 --- a/tools/virt-xml-validate.in +++ b/tools/virt-xml-validate.in @@ -57,7 +57,7 @@ if [ -z "$TYPE" ]; then esac fi -SCHEMA="@SCHEMADIR@/${TYPE}.rng" +SCHEMA="::SCHEMADIR::/${TYPE}.rng" if [ ! -f "$SCHEMA" ]; then echo "$0: schema $SCHEMA does not exist" -- 1.7.4.4

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[libvirt] [PATCH] Remove macvtap dependancy on domain configuration
by Daniel P. Berrange 22 Jun '11

22 Jun '11

Files under src/util must not depend on src/conf Solve the macvtap problem by moving the definition of macvtap modes from domain_conf.h into macvtap.h * src/util/macvtap.c, src/util/macvtap.h: Add enum for macvtap modes * src/conf/domain_conf.c, src/conf/domain_conf.h: Remove enum for macvtap modes --- src/conf/domain_conf.c | 17 ++++++----------- src/conf/domain_conf.h | 15 +-------------- src/util/macvtap.c | 40 +++++++++++++++++----------------------- src/util/macvtap.h | 14 +++++++++++++- 4 files changed, 37 insertions(+), 49 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index b5c0f83..c528960 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -447,12 +447,6 @@ VIR_ENUM_IMPL(virDomainSeclabel, VIR_DOMAIN_SECLABEL_LAST, "dynamic", "static") -VIR_ENUM_IMPL(virDomainNetdevMacvtap, VIR_DOMAIN_NETDEV_MACVTAP_MODE_LAST, - "vepa", - "private", - "bridge", - "passthrough") - VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST, "none", "802.1Qbg", @@ -1156,7 +1150,7 @@ static virDomainObjPtr virDomainObjNew(virCapsPtr caps) } if (caps->privateDataAllocFunc && - !(domain->privateData = (caps->privateDataAllocFunc)())) { + !(domain->privateData = (caps->privateDataAllocFunc)(caps->privateDataOpaque))) { virReportOOMError(); VIR_FREE(domain); return NULL; @@ -2974,14 +2968,14 @@ virDomainNetDefParseXML(virCapsPtr caps, if (mode != NULL) { int m; - if ((m = virDomainNetdevMacvtapTypeFromString(mode)) < 0) { + if ((m = virMacvtapModeTypeFromString(mode)) < 0) { virDomainReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Unkown mode has been specified")); goto error; } def->data.direct.mode = m; } else - def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA; + def->data.direct.mode = VIR_MACVTAP_MODE_VEPA; if (virtPortParsed) def->data.direct.virtPortProfile = virtPort; @@ -6737,12 +6731,13 @@ static virDomainObjPtr virDomainObjParseXML(virCapsPtr caps, char *str = virXMLPropString(nodes[i], "flag"); if (str) { int flag = virDomainTaintTypeFromString(str); - VIR_FREE(str); if (flag < 0) { virDomainReportError(VIR_ERR_INTERNAL_ERROR, _("Unknown taint flag %s"), str); + VIR_FREE(str); goto error; } + VIR_FREE(str); virDomainObjTaint(obj, flag); } } @@ -8634,7 +8629,7 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferEscapeString(buf, " <source dev='%s'", def->data.direct.linkdev); virBufferAsprintf(buf, " mode='%s'", - virDomainNetdevMacvtapTypeToString(def->data.direct.mode)); + virMacvtapModeTypeToString(def->data.direct.mode)); virBufferAddLit(buf, "/>\n"); virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile, " "); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 994ff91..aa25e36 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -348,17 +348,6 @@ enum virDomainNetVirtioTxModeType { VIR_DOMAIN_NET_VIRTIO_TX_MODE_LAST, }; -/* the mode type for macvtap devices */ -enum virDomainNetdevMacvtapType { - VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA, - VIR_DOMAIN_NETDEV_MACVTAP_MODE_PRIVATE, - VIR_DOMAIN_NETDEV_MACVTAP_MODE_BRIDGE, - VIR_DOMAIN_NETDEV_MACVTAP_MODE_PASSTHRU, - - VIR_DOMAIN_NETDEV_MACVTAP_MODE_LAST, -}; - - /* Stores the virtual network interface configuration */ typedef struct _virDomainNetDef virDomainNetDef; typedef virDomainNetDef *virDomainNetDefPtr; @@ -396,7 +385,7 @@ struct _virDomainNetDef { } internal; struct { char *linkdev; - int mode; + int mode; /* enum virMacvtapMode from util/macvtap.h */ virVirtualPortProfileParams virtPortProfile; } direct; } data; @@ -1615,8 +1604,6 @@ int virDomainStateReasonFromString(virDomainState state, const char *reason); VIR_ENUM_DECL(virDomainSeclabel) VIR_ENUM_DECL(virDomainClockOffset) -VIR_ENUM_DECL(virDomainNetdevMacvtap) - VIR_ENUM_DECL(virDomainTimerName) VIR_ENUM_DECL(virDomainTimerTrack) VIR_ENUM_DECL(virDomainTimerTickpolicy) diff --git a/src/util/macvtap.c b/src/util/macvtap.c index 48c7b0e..4e4ed79 100644 --- a/src/util/macvtap.c +++ b/src/util/macvtap.c @@ -55,12 +55,17 @@ #include "util.h" #include "macvtap.h" +VIR_ENUM_IMPL(virMacvtapMode, VIR_MACVTAP_MODE_LAST, + "vepa", + "private", + "bridge", + "passthrough") + #if WITH_MACVTAP || WITH_VIRTUALPORT # include "memory.h" # include "logging.h" # include "interface.h" -# include "conf/domain_conf.h" # include "virterror_internal.h" # include "uuid.h" # include "files.h" @@ -468,26 +473,6 @@ int openTap(const char *ifname, } -static uint32_t -macvtapModeFromInt(enum virDomainNetdevMacvtapType mode) -{ - switch (mode) { - case VIR_DOMAIN_NETDEV_MACVTAP_MODE_PRIVATE: - return MACVLAN_MODE_PRIVATE; - - case VIR_DOMAIN_NETDEV_MACVTAP_MODE_BRIDGE: - return MACVLAN_MODE_BRIDGE; - - case VIR_DOMAIN_NETDEV_MACVTAP_MODE_PASSTHRU: - return MACVLAN_MODE_PASSTHRU; - - case VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA: - default: - return MACVLAN_MODE_VEPA; - } -} - - /** * configMacvtapTap: * @tapfd: file descriptor of the macvtap tap @@ -643,6 +628,13 @@ restoreMacAddress(const char *linkdev, return 0; } +static const uint32_t modeMap[VIR_MACVTAP_MODE_LAST] = { + [VIR_MACVTAP_MODE_VEPA] = MACVLAN_MODE_VEPA, + [VIR_MACVTAP_MODE_PRIVATE] = MACVLAN_MODE_PRIVATE, + [VIR_MACVTAP_MODE_BRIDGE] = MACVLAN_MODE_BRIDGE, + [VIR_MACVTAP_MODE_PASSTHRU] = MACVLAN_MODE_PASSTHRU, +}; + /** * openMacvtapTap: * Create an instance of a macvtap device and open its tap character @@ -667,7 +659,7 @@ int openMacvtapTap(const char *tgifname, const unsigned char *macaddress, const char *linkdev, - int mode, + enum virMacvtapMode mode, int vnet_hdr, const unsigned char *vmuuid, virVirtualPortProfileParamsPtr virtPortProfile, @@ -679,10 +671,12 @@ openMacvtapTap(const char *tgifname, int c, rc; char ifname[IFNAMSIZ]; int retries, do_retry = 0; - uint32_t macvtapMode = macvtapModeFromInt(mode); + uint32_t macvtapMode; const char *cr_ifname; int ifindex; + macvtapMode = modeMap[mode]; + *res_ifname = NULL; VIR_DEBUG("%s: VM OPERATION: %s", __FUNCTION__, virVMOperationTypeToString(vmOp)); diff --git a/src/util/macvtap.h b/src/util/macvtap.h index 2843596..1b85989 100644 --- a/src/util/macvtap.h +++ b/src/util/macvtap.h @@ -34,6 +34,17 @@ enum virVirtualPortType { VIR_VIRTUALPORT_TYPE_LAST, }; +/* the mode type for macvtap devices */ +enum virMacvtapMode { + VIR_MACVTAP_MODE_VEPA, + VIR_MACVTAP_MODE_PRIVATE, + VIR_MACVTAP_MODE_BRIDGE, + VIR_MACVTAP_MODE_PASSTHRU, + + VIR_MACVTAP_MODE_LAST, +}; + + # ifdef IFLA_VF_PORT_PROFILE_MAX # define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX # else @@ -78,7 +89,7 @@ enum virVMOperationType { int openMacvtapTap(const char *ifname, const unsigned char *macaddress, const char *linkdev, - int mode, + enum virMacvtapMode mode, int vnet_hdr, const unsigned char *vmuuid, virVirtualPortProfileParamsPtr virtPortProfile, @@ -110,5 +121,6 @@ int vpDisassociatePortProfileId(const char *macvtap_ifname, VIR_ENUM_DECL(virVirtualPort) VIR_ENUM_DECL(virVMOperation) +VIR_ENUM_DECL(virMacvtapMode) #endif /* __UTIL_MACVTAP_H__ */ -- 1.7.4.4

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[libvirt] [PATCH]: set and get the MAC of an interface
by Gerhard Stenzel 22 Jun '11

22 Jun '11

The following patch renames the function to set the MAC of an interface from ifSetInterfaceMac() to brSetInterfaceMac() and makes it available to other components. It also adds brGetInterfaceMac() to retrieve the MAC. Signed-off-by: Gerhard Stenzel <gerhard.stenzel(a)de.ibm.com> Index: libvirt/src/util/bridge.c =================================================================== --- libvirt.orig/src/util/bridge.c +++ libvirt/src/util/bridge.c @@ -286,8 +286,41 @@ brDeleteInterface(brControl *ctl ATTRIBU } # endif + +/** + * brGetInterfaceMac: + * @ctl: bridge control pointer + * @ifname: interface name to set MTU for + * @macaddr: MAC address (VIR_MAC_BUFLEN in size) + * + * This function gets the @macaddr for a given interface @ifname. + * + * Returns 0 in case of success or an errno code in case of failure. + */ +int brGetInterfaceMac(brControl *ctl, const char *ifname, + unsigned char *macaddr) +{ + struct ifreq ifr; + + if (!ctl || !ifname) + return EINVAL; + + memset(&ifr, 0, sizeof(struct ifreq)); + if (virStrcpyStatic(ifr.ifr_name, ifname) == NULL) + return EINVAL; + + if(ioctl(ctl->fd, SIOCGIFHWADDR, (char *)&ifr) != 0){ + return errno; + } + + memcpy(macaddr, ifr.ifr_ifru.ifru_hwaddr.sa_data, VIR_MAC_BUFLEN); + + return 0; +} + + /** - * ifSetInterfaceMac: + * brSetInterfaceMac: * @ctl: bridge control pointer * @ifname: interface name to set MTU for * @macaddr: MAC address (VIR_MAC_BUFLEN in size) @@ -297,7 +330,7 @@ brDeleteInterface(brControl *ctl ATTRIBU * * Returns 0 in case of success or an errno code in case of failure. */ -static int ifSetInterfaceMac(brControl *ctl, const char *ifname, +int brSetInterfaceMac(brControl *ctl, const char *ifname, const unsigned char *macaddr) { struct ifreq ifr; @@ -521,7 +554,7 @@ brAddTap(brControl *ctl, * seeing the kernel allocate random MAC for the TAP * device before we set our static MAC. */ - if ((errno = ifSetInterfaceMac(ctl, ifr.ifr_name, macaddr))) + if ((errno = brSetInterfaceMac(ctl, ifr.ifr_name, macaddr))) goto error; /* We need to set the interface MTU before adding it * to the bridge, because the bridge will have its Index: libvirt/src/util/bridge.h =================================================================== --- libvirt.orig/src/util/bridge.h +++ libvirt/src/util/bridge.h @@ -106,6 +106,14 @@ int brGetEnableSTP (brContr const char *bridge, int *enable); +int brSetInterfaceMac (brControl *ctl, + const char *ifname, + const unsigned char *macaddr); + +int brGetInterfaceMac (brControl *ctl, + const char *ifname, + unsigned char *macaddr); + # endif /* WITH_BRIDGE */ #endif /* __QEMUD_BRIDGE_H__ */ =================================================================== Best regards, Gerhard Stenzel ------------------------------------------------------------------------------------- IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschaeftsfuehrung: Dirk Wittkopp Sitz der Gesellschaft: Boeblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

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[libvirt] [RFC] Introduce virDomainBlockCopy API
by Jiri Denemark 22 Jun '11

22 Jun '11

This API starts asynchronous live copy of a block device (specified by target element of the xml argument) into a new source (which must already exist). The process can be controlled in the same way as migration: monitored with virDomainJobInfo() and canceled using virDomainAbortJob(). I don't particularly like the name (but I wasn't able to come up with a better one) since it doesn't reflect the fact that once a block device is switched to use the new source once copying finishes. In other words, the goal of this API is to update the device to use new source (just like virDomainUpdateDeviceFlags) but before doing so all data is copied from the old source into the new one (unlike the UpdateDevice API). --- include/libvirt/libvirt.h.in | 4 +++ src/driver.h | 6 ++++ src/libvirt.c | 54 ++++++++++++++++++++++++++++++++++++++++++ src/libvirt_public.syms | 1 + 4 files changed, 65 insertions(+), 0 deletions(-) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index cb9e8ca..41f6b2e 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in @@ -2983,6 +2983,10 @@ typedef struct _virTypedParameter virMemoryParameter; */ typedef virMemoryParameter *virMemoryParameterPtr; +int virDomainBlockCopy(virDomainPtr domain, + const char *xml, + unsigned int flags); + #ifdef __cplusplus } #endif diff --git a/src/driver.h b/src/driver.h index 62bbc1d..8731d68 100644 --- a/src/driver.h +++ b/src/driver.h @@ -666,6 +666,11 @@ typedef int virDomainBlockPullInfoPtr info, unsigned int flags); +typedef int + (*virDrvDomainBlockCopy)(virDomainPtr domain, + const char *xml, + unsigned int flags); + /** * _virDriver: * @@ -809,6 +814,7 @@ struct _virDriver { virDrvDomainBlockPullAll domainBlockPullAll; virDrvDomainBlockPullAbort domainBlockPullAbort; virDrvDomainGetBlockPullInfo domainGetBlockPullInfo; + virDrvDomainBlockCopy domainBlockCopy; }; typedef int diff --git a/src/libvirt.c b/src/libvirt.c index c57e0c3..ad5da9b 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -15548,3 +15548,57 @@ error: virDispatchError(dom->conn); return -1; } + +/** + * virDomainBlockCopy: + * @domain: pointer to domain object + * @xml: pointer to XML description of the block device to copy + * @flags: currently unused, use 0 + * + * Starts asynchronous live copy of a block device (specified by target element + * of the xml) into a new source (which must already exist). The process can be + * controlled in the same way as migration: monitored with virDomainJobInfo() + * and canceled using virDomainAbortJob(). + * + * Returns -1 in case of failure, 0 when successful. + */ +int +virDomainBlockCopy(virDomainPtr domain, const char *xml, unsigned int flags) +{ + virConnectPtr conn; + + VIR_DOMAIN_DEBUG(domain, "xml=%s, flags=%d", xml, flags); + + virResetLastError(); + + if (!VIR_IS_CONNECTED_DOMAIN(domain)) { + virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__); + virDispatchError(NULL); + return -1; + } + + if (xml == NULL) { + virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__); + goto error; + } + + if (domain->conn->flags & VIR_CONNECT_RO) { + virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__); + goto error; + } + conn = domain->conn; + + if (conn->driver->domainBlockCopy) { + int ret; + ret = conn->driver->domainBlockCopy(domain, xml, flags); + if (ret < 0) + goto error; + return ret; + } + + virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__); + +error: + virDispatchError(domain->conn); + return -1; +} diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms index b2915f6..3028e15 100644 --- a/src/libvirt_public.syms +++ b/src/libvirt_public.syms @@ -452,6 +452,7 @@ LIBVIRT_0.9.2 { LIBVIRT_0.9.3 { global: + virDomainBlockCopy; virDomainBlockPull; virDomainBlockPullAbort; virDomainBlockPullAll; -- 1.7.5.3

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[libvirt] qemu error: "fsdev is not supported by this qemu build."
by Richard W.M. Jones 22 Jun '11

22 Jun '11

When trying to add a 9p filesystem to a guest, I get the qemu error "fsdev is not supported by this qemu build." (when starting the guest). I'm still looking at this. It seems to be something to do with the machine type causing the -fsdev option not to be registered inside qemu. I just wanted to record the problem here in case anyone else has any ideas. Full XML and qemu command line is below. Occurs with: libvirt-0.9.2-2.fc16.x86_64 2:qemu-system-x86-0.14.0-8.fc16.x86_64 Also occurs with the latest qemu & libvirt in Fedora 15, but reportedly not with older versions of qemu. Rich. ---------------------------------------------------------------------- <domain type='kvm'> <name>F14x64</name> <uuid>799ae7ca-23a2-f622-c691-48feebcddbe6</uuid> <memory>1048576</memory> <currentMemory>1048576</currentMemory> <vcpu>1</vcpu> <os> <type arch='x86_64' machine='pc-0.14'>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> </features> <cpu match='exact'> <model>core2duo</model> <vendor>Intel</vendor> </cpu> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/bin/qemu-kvm</emulator> <disk type='block' device='disk'> <driver name='qemu' type='raw'/> <source dev='/dev/vg_pin/F14x64'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <filesystem type='mount' accessmode='passthrough'> <source dir='/tmp'/> <target dir='org.kernel.tmp'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </filesystem> <interface type='network'> <mac address='52:54:00:18:04:63'/> <source network='default'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <source mode='bind' path='/tmp/f14socket'/> <target type='virtio' name='org.libguestfs.channel.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' keymap='de'/> <video> <model type='cirrus' vram='9216' heads='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </video> <watchdog model='ib700' action='reset'/> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </memballoon> </devices> </domain> ---------------------------------------------------------------------- LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none /usr/bin/qemu-kvm -S -M pc-0.14 -cpu core2duo -enable-kvm -m 1024 -smp 1,sockets=1,cores=1,threads=1 -name F14x64 -uuid 799ae7ca-23a2-f622-c691-48feebcddbe6 -nodefconfig -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/F14x64.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -boot c -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive file=/dev/vg_pin/F14x64,if=none,id=drive-ide0-0-0,format=raw -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/tmp -device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=org.kernel.tmp,bus=pci.0,addr=0x6 -netdev tap,fd=23,id=hostnet0 -device rtl8139,netdev=hostnet0,id=net0,mac=52:54:00:18:04:63,bus=pci.0,addr=0x4 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev socket,id=charchannel0,path=/tmp/f14socket,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.libguestfs.channel.0 -usb -vnc 127.0.0.1:0 -k de -vga cirrus -device ib700,id=watchdog0 -watchdog-action reset -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 qemu-kvm: -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/tmp: there is no option group "fsdev" fsdev is not supported by this qemu build. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/

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[libvirt] [PATCH] util: Correct the error prompt string
by Osier Yang 22 Jun '11

22 Jun '11

virCommandProcessIO: It's reading from stdout or stderr of child, but not reading. --- src/util/command.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/src/util/command.c b/src/util/command.c index cb682fc..81a2345 100644 --- a/src/util/command.c +++ b/src/util/command.c @@ -1504,7 +1504,9 @@ virCommandProcessIO(virCommandPtr cmd) if (errno != EINTR && errno != EAGAIN) { virReportSystemError(errno, "%s", - _("unable to write to child input")); + (fds[i].fd == outfd) ? + _("unable to read child stdout") : + _("unable to read child stderr")); goto cleanup; } } else if (done == 0) { -- 1.7.4

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[libvirt] [PATCH] qemu: Fix one memory leak
by Osier Yang 22 Jun '11

22 Jun '11

* src/qemu/qemu_domain.c: (qemuDomainAppendLog) Free "message" in "cleanup". --- src/qemu/qemu_domain.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 5fe66ac..fab316f 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -947,5 +947,6 @@ cleanup: if (fd != logFD) VIR_FORCE_CLOSE(fd); + VIR_FREE(message); return ret; } -- 1.7.4

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[libvirt] [PATCH 1/2] cleanup: make nlComm commonly available
by Stefan Berger 22 Jun '11

22 Jun '11

In a first cleanup step, make nlComm from macvtap.c commonly available for other code to use. Since nlComm uses Linux-specific structures as parameters it's prototype is only visible on Linux. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- src/Makefile.am | 1 src/libvirt_private.syms | 4 + src/util/macvtap.c | 98 ---------------------------------- src/util/netlink.c | 135 +++++++++++++++++++++++++++++++++++++++++++++++ src/util/netlink.h | 14 ++++ 5 files changed, 155 insertions(+), 97 deletions(-) Index: libvirt-acl/src/Makefile.am =================================================================== --- libvirt-acl.orig/src/Makefile.am +++ libvirt-acl/src/Makefile.am @@ -63,6 +63,7 @@ UTIL_SOURCES = \ util/logging.c util/logging.h \ util/macvtap.c util/macvtap.h \ util/memory.c util/memory.h \ + util/netlink.c util/netlink.h \ util/pci.c util/pci.h \ util/processinfo.c util/processinfo.h \ util/hostusb.c util/hostusb.h \ Index: libvirt-acl/src/util/macvtap.c =================================================================== --- libvirt-acl.orig/src/util/macvtap.c +++ libvirt-acl/src/util/macvtap.c @@ -39,12 +39,8 @@ # include <sys/ioctl.h> # include <linux/if.h> -# include <linux/netlink.h> -# include <linux/rtnetlink.h> # include <linux/if_tun.h> -# include <netlink/msg.h> - /* Older kernels lacked this enum value. */ # if !HAVE_DECL_MACVLAN_MODE_PASSTHRU # define MACVLAN_MODE_PASSTHRU 8 @@ -64,6 +60,7 @@ # include "virterror_internal.h" # include "uuid.h" # include "files.h" +# include "netlink.h" # define VIR_FROM_THIS VIR_FROM_NET @@ -79,8 +76,6 @@ # define NLMSGBUF_SIZE 256 # define RATTBUF_SIZE 64 -# define NETLINK_ACK_TIMEOUT_S 2 - # define STATUS_POLL_TIMEOUT_USEC (10 * MICROSEC_PER_SEC) # define STATUS_POLL_INTERVL_USEC (MICROSEC_PER_SEC / 8) @@ -96,97 +91,6 @@ enum virVirtualPortOp { }; -/** - * nlComm: - * @nlmsg: pointer to netlink message - * @respbuf: pointer to pointer where response buffer will be allocated - * @respbuflen: pointer to integer holding the size of the response buffer - * on return of the function. - * @nl_pid: the pid of the process to talk to, i.e., pid = 0 for kernel - * - * Send the given message to the netlink layer and receive response. - * Returns 0 on success, -1 on error. In case of error, no response - * buffer will be returned. - */ -static -int nlComm(struct nl_msg *nl_msg, - unsigned char **respbuf, unsigned int *respbuflen, - int nl_pid) -{ - int rc = 0; - struct sockaddr_nl nladdr = { - .nl_family = AF_NETLINK, - .nl_pid = nl_pid, - .nl_groups = 0, - }; - ssize_t nbytes; - struct timeval tv = { - .tv_sec = NETLINK_ACK_TIMEOUT_S, - }; - fd_set readfds; - int fd; - int n; - struct nlmsghdr *nlmsg = nlmsg_hdr(nl_msg); - struct nl_handle *nlhandle = nl_handle_alloc(); - - if (!nlhandle) { - virReportSystemError(errno, - "%s", _("cannot allocate nlhandle for netlink")); - return -1; - } - - if (nl_connect(nlhandle, NETLINK_ROUTE) < 0) { - virReportSystemError(errno, - "%s", _("cannot connect to netlink socket")); - rc = -1; - goto err_exit; - } - - nlmsg_set_dst(nl_msg, &nladdr); - - nlmsg->nlmsg_pid = getpid(); - - nbytes = nl_send_auto_complete(nlhandle, nl_msg); - if (nbytes < 0) { - virReportSystemError(errno, - "%s", _("cannot send to netlink socket")); - rc = -1; - goto err_exit; - } - - fd = nl_socket_get_fd(nlhandle); - - FD_ZERO(&readfds); - FD_SET(fd, &readfds); - - n = select(fd + 1, &readfds, NULL, NULL, &tv); - if (n <= 0) { - if (n < 0) - virReportSystemError(errno, "%s", - _("error in select call")); - if (n == 0) - virReportSystemError(ETIMEDOUT, "%s", - _("no valid netlink response was received")); - rc = -1; - goto err_exit; - } - - *respbuflen = nl_recv(nlhandle, &nladdr, respbuf, NULL); - if (*respbuflen <= 0) { - virReportSystemError(errno, - "%s", _("nl_recv failed")); - rc = -1; - } -err_exit: - if (rc == -1) { - VIR_FREE(*respbuf); - *respbuf = NULL; - *respbuflen = 0; - } - - nl_handle_destroy(nlhandle); - return rc; -} # if WITH_MACVTAP Index: libvirt-acl/src/util/netlink.c =================================================================== --- /dev/null +++ libvirt-acl/src/util/netlink.c @@ -0,0 +1,135 @@ +/* + * Copyright (C) 2010-2011 Red Hat, Inc. + * Copyright (C) 2010 IBM Corporation + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * Authors: + * Stefan Berger <stefanb(a)us.ibm.com> + * + * Notes: + * netlink: http://lovezutto.googlepages.com/netlink.pdf + * iproute2 package + * + */ + +#include <config.h> + +#include <errno.h> +#include <unistd.h> +#include <sys/types.h> + +#include "netlink.h" +#include "memory.h" +#include "virterror_internal.h" + +#define VIR_FROM_THIS VIR_FROM_NET + +#define NETLINK_ACK_TIMEOUT_S 2 + +/** + * nlComm: + * @nlmsg: pointer to netlink message + * @respbuf: pointer to pointer where response buffer will be allocated + * @respbuflen: pointer to integer holding the size of the response buffer + * on return of the function. + * @nl_pid: the pid of the process to talk to, i.e., pid = 0 for kernel + * + * Send the given message to the netlink layer and receive response. + * Returns 0 on success, -1 on error. In case of error, no response + * buffer will be returned. + */ +#if __linux__ +int nlComm(struct nl_msg *nl_msg, + unsigned char **respbuf, unsigned int *respbuflen, + int nl_pid) +{ + int rc = 0; + struct sockaddr_nl nladdr = { + .nl_family = AF_NETLINK, + .nl_pid = nl_pid, + .nl_groups = 0, + }; + ssize_t nbytes; + struct timeval tv = { + .tv_sec = NETLINK_ACK_TIMEOUT_S, + }; + fd_set readfds; + int fd; + int n; + struct nlmsghdr *nlmsg = nlmsg_hdr(nl_msg); + struct nl_handle *nlhandle = nl_handle_alloc(); + + if (!nlhandle) { + virReportSystemError(errno, + "%s", _("cannot allocate nlhandle for netlink")); + return -1; + } + + if (nl_connect(nlhandle, NETLINK_ROUTE) < 0) { + virReportSystemError(errno, + "%s", _("cannot connect to netlink socket")); + rc = -1; + goto err_exit; + } + + nlmsg_set_dst(nl_msg, &nladdr); + + nlmsg->nlmsg_pid = getpid(); + + nbytes = nl_send_auto_complete(nlhandle, nl_msg); + if (nbytes < 0) { + virReportSystemError(errno, + "%s", _("cannot send to netlink socket")); + rc = -1; + goto err_exit; + } + + fd = nl_socket_get_fd(nlhandle); + + FD_ZERO(&readfds); + FD_SET(fd, &readfds); + + n = select(fd + 1, &readfds, NULL, NULL, &tv); + if (n <= 0) { + if (n < 0) + virReportSystemError(errno, "%s", + _("error in select call")); + if (n == 0) + virReportSystemError(ETIMEDOUT, "%s", + _("no valid netlink response was received")); + rc = -1; + goto err_exit; + } + + *respbuflen = nl_recv(nlhandle, &nladdr, respbuf, NULL); + if (*respbuflen <= 0) { + virReportSystemError(errno, + "%s", _("nl_recv failed")); + rc = -1; + } +err_exit: + if (rc == -1) { + VIR_FREE(*respbuf); + *respbuf = NULL; + *respbuflen = 0; + } + + nl_handle_destroy(nlhandle); + return rc; +} + +#endif /* __linux__ */ + Index: libvirt-acl/src/util/netlink.h =================================================================== --- /dev/null +++ libvirt-acl/src/util/netlink.h @@ -0,0 +1,14 @@ +#ifndef __VIR_NETLINK_H__ +# define __VIR_NETLINK_H__ + +# if __linux__ + +# include <netlink/msg.h> + +int nlComm(struct nl_msg *nl_msg, + unsigned char **respbuf, unsigned int *respbuflen, + int nl_pid); + +#endif /* __linux__ */ + +#endif /* __VIR_NETLINK_H__ */ Index: libvirt-acl/src/libvirt_private.syms =================================================================== --- libvirt-acl.orig/src/libvirt_private.syms +++ libvirt-acl/src/libvirt_private.syms @@ -668,6 +668,10 @@ virResizeN; virShrinkN; +#netlink.h +nlComm; + + # network.h virSocketAddrBroadcast; virSocketAddrBroadcastByPrefix;

3 3

[libvirt] minor doc generation glitch
by Eric Blake 22 Jun '11

22 Jun '11

Looking at http://libvirt.org/html/libvirt-libvirt.html#virDomainShutoffReason as an example, I see several places where there are spurious "*" in the generated documentation. It looks like anywhere we have: typedef enum { VALUE = 0; /* Multi-line * comment */ } virName; that the python generator is not stripping out the '^ *\*?' regex for continued comment lines. My python is a bit too weak to quickly determine a fix, so I'm throwing this out for anyone else who wants an easy bug to fix. -- Eric Blake eblake(a)redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org

2 5

[libvirt] [PATCH v2] qemu: domain I/O asynchronous handling
by Michal Privoznik 22 Jun '11

22 Jun '11

For virtio disks and interfaces, qemu allows users to enable or disable ioeventfd feature. This means, qemu can execute domain code, while another thread waits for I/O event. Basically, in some cases it is win, in some loss. This feature is available via 'ioeventfd' attribute in disk and interface <driver> element. It accepts 'on' and 'off'. Leaving this attribute out defaults to hypervisor decision. --- diff to v1: -reverted to 'ioeventfd' attribute: https://www.redhat.com/archives/libvir-list/2011-June/msg00712.html docs/formatdomain.html.in | 34 +++++++++++++- docs/schemas/domain.rng | 14 ++++++ src/conf/domain_conf.c | 49 +++++++++++++++++++- src/conf/domain_conf.h | 11 ++++ src/libvirt_private.syms | 2 + src/qemu/qemu_capabilities.c | 3 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 13 +++++ tests/qemuhelptest.c | 3 +- .../qemuxml2argv-disk-ioeventfd.args | 11 ++++ .../qemuxml2argv-disk-ioeventfd.xml | 50 ++++++++++++++++++++ tests/qemuxml2argvtest.c | 4 ++ 12 files changed, 191 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index ab39417..39e1a85 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -785,7 +785,7 @@ </disk> ... <disk type='network'> - <driver name="qemu" type="raw" io="threads"/> + <driver name="qemu" type="raw" io="threads" ioeventfd="on"/> <source protocol="sheepdog" name="image_name"> <host name="hostname" port="7000"/> </source> @@ -869,6 +869,20 @@ policies on I/O; qemu guests support "threads" and "native". Since 0.8.8 </li> + <li> + The optional <code>ioeventfd</code> attribute allows users to + set <a href='https://patchwork.kernel.org/patch/43390/'> + domain I/O asynchronous handling</a> for disk device. + The default is left to the discretion of the hypervisor. + Accepted values are "on" and "off". Enabling this allows + qemu to execute VM while a separate thread handles I/O. + Typically guests experiencing high system CPU utilization + during I/O will benefit from this. On the other hand, + on overloaded host it could increase guest I/O latency. + Since 0.9.3 (QEMU and KVM only) + In general you should leave this option alone, unless you + are very certain you know what you are doing. + </li> </ul> </dd> <dt><code>boot</code></dt> @@ -1649,7 +1663,7 @@ qemu-kvm -net nic,model=? /dev/null <source network='default'/> <target dev='vnet1'/> <model type='virtio'/> - <driver name='vhost' txmode='iothread'/> + <driver name='vhost' txmode='iothread' ioeventfd='on'/> </interface> </devices> ...</pre> @@ -1700,6 +1714,22 @@ qemu-kvm -net nic,model=? /dev/null In general you should leave this option alone, unless you are very certain you know what you are doing. </dd> + <dt><code>ioeventfd</code></dt> + <dd> + This optional attribute allows users to set + <a href='https://patchwork.kernel.org/patch/43390/'> + domain I/O asynchronous handling</a> for interface device. + The default is left to the discretion of the hypervisor. + Accepted values are "on" and "off". Enabling this allows + qemu to execute VM while a separate thread handles I/O. + Typically guests experiencing high system CPU utilization + during I/O will benefit from this. On the other hand, + on overloaded host it could increase guest I/O latency. + Since 0.9.3 (QEMU and KVM only) + + In general you should leave this option alone, unless you + are very certain you know what you are doing. + </dd> </dl> <h5><a name="elementsNICSTargetOverride">Overriding the target element</a></h5> diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index 6de024e..891662d 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -778,6 +778,9 @@ <optional> <ref name="driverIO"/> </optional> + <optional> + <ref name="ioeventfd"/> + </optional> <empty/> </element> </define> @@ -817,6 +820,14 @@ </choice> </attribute> </define> + <define name="ioeventfd"> + <attribute name="ioeventfd"> + <choice> + <value>on</value> + <value>off</value> + </choice> + </attribute> + </define> <define name="controller"> <element name="controller"> <choice> @@ -1117,6 +1128,9 @@ </choice> </attribute> </optional> + <optional> + <ref name="ioeventfd"/> + </optional> <empty/> </element> </optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 5360863..2234857 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -163,6 +163,11 @@ VIR_ENUM_IMPL(virDomainDiskIo, VIR_DOMAIN_DISK_IO_LAST, "default", "native", "threads") +VIR_ENUM_IMPL(virDomainIoEventFd, VIR_DOMAIN_IO_EVENT_FD_LAST, + "default", + "on", + "off") + VIR_ENUM_IMPL(virDomainController, VIR_DOMAIN_CONTROLLER_TYPE_LAST, "ide", @@ -2013,6 +2018,7 @@ virDomainDiskDefParseXML(virCapsPtr caps, char *cachetag = NULL; char *error_policy = NULL; char *iotag = NULL; + char *ioeventfd = NULL; char *devaddr = NULL; virStorageEncryptionPtr encryption = NULL; char *serial = NULL; @@ -2128,6 +2134,7 @@ virDomainDiskDefParseXML(virCapsPtr caps, cachetag = virXMLPropString(cur, "cache"); error_policy = virXMLPropString(cur, "error_policy"); iotag = virXMLPropString(cur, "io"); + ioeventfd = virXMLPropString(cur, "ioeventfd"); } else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) { def->readonly = 1; } else if (xmlStrEqual(cur->name, BAD_CAST "shareable")) { @@ -2264,6 +2271,24 @@ virDomainDiskDefParseXML(virCapsPtr caps, } } + if (ioeventfd) { + if (def->bus != VIR_DOMAIN_DISK_BUS_VIRTIO) { + virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("disk ioeventfd mode supported " + "only for virtio bus")); + goto error; + } + + int i; + if ((i = virDomainIoEventFdTypeFromString(ioeventfd)) <= 0) { + virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("unknown disk ioeventfd mode '%s'"), + ioeventfd); + goto error; + } + def->ioeventfd=i; + } + if (devaddr) { if (virDomainParseLegacyDeviceAddress(devaddr, &def->info.addr.pci) < 0) { @@ -2326,6 +2351,7 @@ cleanup: VIR_FREE(cachetag); VIR_FREE(error_policy); VIR_FREE(iotag); + VIR_FREE(ioeventfd); VIR_FREE(devaddr); VIR_FREE(serial); virStorageEncryptionFree(encryption); @@ -2713,6 +2739,7 @@ virDomainNetDefParseXML(virCapsPtr caps, char *model = NULL; char *backend = NULL; char *txmode = NULL; + char *ioeventfd = NULL; char *filter = NULL; char *internal = NULL; char *devaddr = NULL; @@ -2802,6 +2829,7 @@ virDomainNetDefParseXML(virCapsPtr caps, } else if (xmlStrEqual (cur->name, BAD_CAST "driver")) { backend = virXMLPropString(cur, "name"); txmode = virXMLPropString(cur, "txmode"); + ioeventfd = virXMLPropString(cur, "ioeventfd"); } else if (xmlStrEqual (cur->name, BAD_CAST "filterref")) { filter = virXMLPropString(cur, "filter"); VIR_FREE(filterparams); @@ -3018,6 +3046,16 @@ virDomainNetDefParseXML(virCapsPtr caps, } def->driver.virtio.txmode = m; } + if (ioeventfd) { + int i; + if ((i = virDomainIoEventFdTypeFromString(ioeventfd)) <= 0) { + virDomainReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("unknown interface ioeventfd mode '%s'"), + ioeventfd); + goto error; + } + def->driver.virtio.ioeventfd = i; + } } if (filter != NULL) { @@ -3057,6 +3095,7 @@ cleanup: VIR_FREE(model); VIR_FREE(backend); VIR_FREE(txmode); + VIR_FREE(ioeventfd); VIR_FREE(filter); VIR_FREE(type); VIR_FREE(internal); @@ -8291,6 +8330,7 @@ virDomainDiskDefFormat(virBufferPtr buf, const char *cachemode = virDomainDiskCacheTypeToString(def->cachemode); const char *error_policy = virDomainDiskErrorPolicyTypeToString(def->error_policy); const char *iomode = virDomainDiskIoTypeToString(def->iomode); + const char *ioeventfd = virDomainIoEventFdTypeToString(def->ioeventfd); if (!type) { virDomainReportError(VIR_ERR_INTERNAL_ERROR, @@ -8322,7 +8362,8 @@ virDomainDiskDefFormat(virBufferPtr buf, " <disk type='%s' device='%s'>\n", type, device); - if (def->driverName || def->driverType || def->cachemode) { + if (def->driverName || def->driverType || def->cachemode || + def->ioeventfd) { virBufferAsprintf(buf, " <driver"); if (def->driverName) virBufferAsprintf(buf, " name='%s'", def->driverName); @@ -8334,6 +8375,8 @@ virDomainDiskDefFormat(virBufferPtr buf, virBufferAsprintf(buf, " error_policy='%s'", error_policy); if (def->iomode) virBufferAsprintf(buf, " io='%s'", iomode); + if (def->ioeventfd) + virBufferAsprintf(buf, " ioeventfd='%s'", ioeventfd); virBufferAsprintf(buf, "/>\n"); } @@ -8624,6 +8667,10 @@ virDomainNetDefFormat(virBufferPtr buf, virBufferAsprintf(buf, " txmode='%s'", virDomainNetVirtioTxModeTypeToString(def->driver.virtio.txmode)); } + if (def->driver.virtio.ioeventfd) { + virBufferAsprintf(buf, " ioeventfd='%s'", + virDomainIoEventFdTypeToString(def->driver.virtio.ioeventfd)); + } virBufferAddLit(buf, "/>\n"); } } diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index ff5c28d..994ff91 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -206,6 +206,14 @@ enum virDomainDiskIo { VIR_DOMAIN_DISK_IO_LAST }; +enum virDomainIoEventFd { + VIR_DOMAIN_IO_EVENT_FD_DEFAULT = 0, + VIR_DOMAIN_IO_EVENT_FD_ON, + VIR_DOMAIN_IO_EVENT_FD_OFF, + + VIR_DOMAIN_IO_EVENT_FD_LAST +}; + /* Stores the virtual disk configuration */ typedef struct _virDomainDiskDef virDomainDiskDef; typedef virDomainDiskDef *virDomainDiskDefPtr; @@ -225,6 +233,7 @@ struct _virDomainDiskDef { int error_policy; int bootIndex; int iomode; + int ioeventfd; unsigned int readonly : 1; unsigned int shared : 1; virDomainDeviceInfo info; @@ -361,6 +370,7 @@ struct _virDomainNetDef { struct { enum virDomainNetBackendType name; /* which driver backend to use */ enum virDomainNetVirtioTxModeType txmode; + enum virDomainIoEventFd ioeventfd; } virtio; } driver; union { @@ -1554,6 +1564,7 @@ VIR_ENUM_DECL(virDomainDiskCache) VIR_ENUM_DECL(virDomainDiskErrorPolicy) VIR_ENUM_DECL(virDomainDiskProtocol) VIR_ENUM_DECL(virDomainDiskIo) +VIR_ENUM_DECL(virDomainIoEventFd) VIR_ENUM_DECL(virDomainController) VIR_ENUM_DECL(virDomainControllerModel) VIR_ENUM_DECL(virDomainFS) diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 03d2ddb..5c8d272 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -292,6 +292,8 @@ virDomainHostdevDefFree; virDomainHostdevModeTypeToString; virDomainHostdevSubsysTypeToString; virDomainInputDefFree; +virDomainIoEventFdTypeFromString; +virDomainIoEventFdTypeToString; virDomainLeaseIndex; virDomainLeaseInsert; virDomainLeaseInsertPreAlloc; diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 28c89b5..ad62a07 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -121,6 +121,7 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "device-qxl-vga", "pci-multifunction", /* 60 */ + "virtio-blk-pci.ioeventfd", ); struct qemu_feature_flags { @@ -1207,6 +1208,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags) qemuCapsSet(flags, QEMU_CAPS_VIRTIO_TX_ALG); if (strstr(str, "name \"qxl-vga\"")) qemuCapsSet(flags, QEMU_CAPS_DEVICE_QXL_VGA); + if (strstr(str, "virtio-blk-pci.ioeventfd")) + qemuCapsSet(flags, QEMU_CAPS_VIRTIO_IOEVENTFD); return 0; } diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index e6d2fa3..0b9c8be 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -96,6 +96,7 @@ enum qemuCapsFlags { QEMU_CAPS_VIRTIO_TX_ALG = 58, /* -device virtio-net-pci,tx=string */ QEMU_CAPS_DEVICE_QXL_VGA = 59, /* Is the primary and vga campatible qxl device named qxl-vga? */ QEMU_CAPS_PCI_MULTIFUNCTION = 60, /* -device multifunction=on|off */ + QEMU_CAPS_VIRTIO_IOEVENTFD = 61, /* IOeventFD feature: virtio-{net|blk}-pci.ioeventfd=on/off */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 6346243..f7c06f8 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1287,6 +1287,16 @@ qemuBuildDeviceAddressStr(virBufferPtr buf, return 0; } +static int +qemuBuildIoEventFdStr(virBufferPtr buf, + enum virDomainIoEventFd use, + virBitmapPtr qemuCaps) +{ + if (use && qemuCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_IOEVENTFD)) + virBufferAsprintf(buf, ",ioeventfd=%s", + virDomainIoEventFdTypeToString(use)); + return 0; +} #define QEMU_SERIAL_PARAM_ACCEPTED_CHARS \ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_" @@ -1554,6 +1564,7 @@ qemuBuildDriveDevStr(virDomainDiskDefPtr disk, break; case VIR_DOMAIN_DISK_BUS_VIRTIO: virBufferAddLit(&opt, "virtio-blk-pci"); + qemuBuildIoEventFdStr(&opt, disk->ioeventfd, qemuCaps); qemuBuildDeviceAddressStr(&opt, &disk->info, qemuCaps); break; case VIR_DOMAIN_DISK_BUS_USB: @@ -1777,6 +1788,8 @@ qemuBuildNicDevStr(virDomainNetDefPtr net, goto error; } } + if (usingVirtio) + qemuBuildIoEventFdStr(&buf, net->driver.virtio.ioeventfd, qemuCaps); if (vlan == -1) virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias); else diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c index 327a0c7..119e771 100644 --- a/tests/qemuhelptest.c +++ b/tests/qemuhelptest.c @@ -475,7 +475,8 @@ mymain(void) QEMU_CAPS_CCID_PASSTHRU, QEMU_CAPS_CHARDEV_SPICEVMC, QEMU_CAPS_DEVICE_QXL_VGA, - QEMU_CAPS_VIRTIO_TX_ALG); + QEMU_CAPS_VIRTIO_TX_ALG, + QEMU_CAPS_VIRTIO_IOEVENTFD); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args new file mode 100644 index 0000000..c512f15 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.args @@ -0,0 +1,11 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/qemu -S -M pc-0.13 -m 1024 -smp 1 -nodefaults \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi \ +-boot dc -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \ +-drive file=/var/lib/libvirt/images/f14.img,if=none,id=drive-virtio-disk0 \ +-device virtio-blk-pci,ioeventfd=on,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 \ +-drive file=/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso,if=none,media=cdrom,id=drive-ide0-1-0 \ +-device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \ +-device virtio-net-pci,tx=bh,ioeventfd=off,vlan=0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x3 \ +-net user,vlan=0,name=hostnet0 -serial pty -usb -vnc 127.0.0.1:-809 -std-vga \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.xml b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.xml new file mode 100644 index 0000000..c565c9f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-disk-ioeventfd.xml @@ -0,0 +1,50 @@ +<domain type='qemu'> + <name>test</name> + <memory>1048576</memory> + <vcpu>1</vcpu> + <os> + <type arch='x86_64' machine='pc-0.13'>hvm</type> + <boot dev='cdrom'/> + <boot dev='hd'/> + <bootmenu enable='yes'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>restart</on_crash> + <devices> + <emulator>/usr/bin/qemu</emulator> + <disk type='file' device='disk'> + <driver name='qemu' type='qcow2' ioeventfd='on'/> + <source file='/var/lib/libvirt/images/f14.img'/> + <target dev='vda' bus='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> + </disk> + <disk type='file' device='cdrom'> + <driver name='qemu' type='raw'/> + <source file='/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso'/> + <target dev='hdc' bus='ide'/> + <readonly/> + <address type='drive' controller='0' bus='1' unit='0'/> + </disk> + <interface type='user'> + <mac address='52:54:00:e5:48:58'/> + <model type='virtio'/> + <driver name='vhost' txmode='iothread' ioeventfd='off'/> + </interface> + <controller type='virtio-serial' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> + </controller> + <serial type='pty'> + <target port='0'/> + </serial> + <console type='pty'> + <target type='serial' port='0'/> + </console> + <graphics type='vnc' port='5091' autoport='no' listen='127.0.0.1'/> + <video> + <model type='vga' vram='9216' heads='1'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index bd07efa..782664a 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -350,6 +350,10 @@ mymain(void) DO_TEST("disk-aio", false, QEMU_CAPS_DRIVE, QEMU_CAPS_DRIVE_AIO, QEMU_CAPS_DRIVE_CACHE_V2, QEMU_CAPS_DRIVE_FORMAT); + DO_TEST("disk-ioeventfd", false, + QEMU_CAPS_DRIVE, QEMU_CAPS_VIRTIO_IOEVENTFD, + QEMU_CAPS_VIRTIO_TX_ALG, QEMU_CAPS_DEVICE); + DO_TEST("graphics-vnc", false, NONE); DO_TEST("graphics-vnc-socket", false, NONE); -- 1.7.5.rc3

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