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[libvirt] [PATCH v2] libxl: include a XLU_Config in _libxlDriverConfig
by Olaf Hering 08 May '15

08 May '15

Upcoming changes for vscsi will use libxlutil.so to prepare the configuration for libxl. The helpers needs a xlu struct for logging. Provide one and reuse the existing output as log target. Signed-off-by: Olaf Hering <olaf(a)aepfle.de> Cc: Jim Fehlig <jfehlig(a)suse.com> --- v2: - call xlu_cfg_destroy, unconditionally - fix cpp indention in libxl_conf.h src/libxl/libxl_conf.c | 7 +++++++ src/libxl/libxl_conf.h | 7 +++++++ 2 files changed, 14 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index fccada5..e1bc0f6 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -92,6 +92,7 @@ libxlDriverConfigDispose(void *obj) virObjectUnref(cfg->caps); libxl_ctx_free(cfg->ctx); xtl_logger_destroy(cfg->logger); + xlu_cfg_destroy(cfg->xlu); if (cfg->logger_file) VIR_FORCE_FCLOSE(cfg->logger_file); @@ -1468,6 +1469,12 @@ libxlDriverConfigNew(void) goto error; } + cfg->xlu = xlu_cfg_init(cfg->logger_file, "libvirt"); + if (!cfg->xlu) { + VIR_ERROR(_("cannot create xlu for libxenlight, disabling driver")); + goto error; + } + if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, cfg->logger)) { VIR_ERROR(_("cannot initialize libxenlight context, probably not " "running in a Xen Dom0, disabling driver")); diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index 0a1c0db..24fa960 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -27,6 +27,12 @@ # define LIBXL_CONF_H # include <libxl.h> +# ifdef HAVE_LIBXLUTIL_H +# include <libxlutil.h> +# else +typedef struct XLU_Config XLU_Config; +XLU_Config *xlu_cfg_init(FILE *report, const char *report_filename); +# endif # include "internal.h" # include "libvirt_internal.h" @@ -92,6 +98,7 @@ struct _libxlDriverConfig { /* log stream for driver-wide libxl ctx */ FILE *logger_file; xentoollog_logger *logger; + XLU_Config *xlu; /* libxl ctx for driver wide ops; getVersion, getNodeInfo, ... */ libxl_ctx *ctx;

2 1

[libvirt] [PATCH] libxl: support vscsi
by Olaf Hering 08 May '15

08 May '15

This uses the API version of the proposed vscsi support in libxl (v4): http://lists.xenproject.org/archives/html/xen-devel/2015-04/msg01949.html Is there anything else that needs to be done in libvirt? Right now libvirt scsi support is very simple minded, no support at all to describe host devices with persistant names. This patch got very little runtime testing up to now... Signed-off-by: Olaf Hering <olaf(a)aepfle.de> --- src/libxl/libxl_conf.c | 59 +++++++++++++++++ src/libxl/libxl_conf.h | 1 + src/libxl/libxl_domain.c | 2 +- src/libxl/libxl_driver.c | 167 +++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 228 insertions(+), 1 deletion(-) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index f9bb5ed..7964e8b 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1591,6 +1591,61 @@ libxlMakePCIList(virDomainDefPtr def, libxl_domain_config *d_config) } static int +libxlMakeVscsiList(libxl_ctx *ctx, + XLU_Config *xlu, + virDomainDefPtr def, + libxl_domain_config *d_config) +{ + virDomainHostdevDefPtr *l_hostdevs = def->hostdevs; + size_t i, nhostdevs = def->nhostdevs; + virDomainHostdevDefPtr hostdev; + virDomainHostdevSubsysSCSIPtr scsisrc; + char *str; + int rc = 0; + + if (nhostdevs == 0) + return 0; + + for (i = 0; i < nhostdevs; i++) { + hostdev = l_hostdevs[i]; + if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) + continue; + if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI) + continue; + scsisrc = &hostdev->source.subsys.u.scsi; + if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) + continue; +#if defined(LIBXL_HAVE_VSCSI) + if (virAsprintf(&str, "%s:%u:%u:%u,%u:%u:%u:%u%s", + scsisrc->u.host.adapter + strlen("scsi_host"), + scsisrc->u.host.bus, + scsisrc->u.host.target, + scsisrc->u.host.unit, + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit, + scsisrc->rawio == VIR_TRISTATE_BOOL_YES ? ",feature-host" : "") < 0) { + goto error; + }; + rc = xlu_vscsi_config_add(xlu, ctx, str, &d_config->num_vscsis, &d_config->vscsis); + VIR_FREE(str); + if (rc) + goto error; +#else + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This version of libxenlight does not support vscsi")); + goto error; +#endif + } + + return 0; + + error: + return -1; +} + +static int libxlMakeVideo(virDomainDefPtr def, libxl_domain_config *d_config) { @@ -1724,6 +1779,7 @@ int libxlBuildDomainConfig(virPortAllocatorPtr graphicsports, virDomainDefPtr def, libxl_ctx *ctx, + XLU_Config *xlu, libxl_domain_config *d_config) { libxl_domain_config_init(d_config); @@ -1746,6 +1802,9 @@ libxlBuildDomainConfig(virPortAllocatorPtr graphicsports, if (libxlMakePCIList(def, d_config) < 0) return -1; + if (libxlMakeVscsiList(ctx, xlu, def, d_config) < 0) + return -1; + /* * Now that any potential VFBs are defined, update the build info with * the data of the primary display. Some day libxl might implicitely do diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index bdc68d4..94a3046 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -205,6 +205,7 @@ int libxlBuildDomainConfig(virPortAllocatorPtr graphicsports, virDomainDefPtr def, libxl_ctx *ctx, + XLU_Config *xlu, libxl_domain_config *d_config); static inline void diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 3039427..537e370 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -950,7 +950,7 @@ libxlDomainStart(libxlDriverPrivatePtr driver, virDomainObjPtr vm, } if (libxlBuildDomainConfig(driver->reservedVNCPorts, vm->def, - cfg->ctx, &d_config) < 0) + cfg->ctx, cfg->xlu, &d_config) < 0) goto cleanup; if (cfg->autoballoon && libxlDomainFreeMem(cfg->ctx, &d_config) < 0) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index f915f91..424150f 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2943,6 +2943,97 @@ libxlDomainAttachHostPCIDevice(libxlDriverPrivatePtr driver, } static int +libxlDomainAttachHostSCSIDevice(libxlDriverPrivatePtr driver, + virDomainObjPtr vm, + virDomainHostdevDefPtr hostdev) +{ +#if defined(LIBXL_HAVE_VSCSI) + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); + libxl_device_vscsi vscsidev; + virDomainHostdevDefPtr found; + virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr; + virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi; + char *str = NULL; + int ret = -1; + + if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) + return -1; + + libxl_device_vscsi_init(&vscsidev); + + if (virDomainHostdevFind(vm->def, hostdev, &found) >= 0) { + virReportError(VIR_ERR_OPERATION_FAILED, + _("target scsi device %u:%u:%u:%u already exists"), + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit); + goto cleanup; + } + + if (VIR_REALLOC_N(vm->def->hostdevs, vm->def->nhostdevs + 1) < 0) + goto cleanup; + + if (virHostdevPrepareSCSIDevices(hostdev_mgr, LIBXL_DRIVER_NAME, + vm->def->name, &hostdev, 1) < 0) + goto cleanup; + + if (virAsprintf(&str, "%s:%u:%u:%u,%u:%u:%u:%u%s", + scsisrc->u.host.adapter + strlen("scsi_host"), + scsisrc->u.host.bus, + scsisrc->u.host.target, + scsisrc->u.host.unit, + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit, + scsisrc->rawio == VIR_TRISTATE_BOOL_YES ? + ",feature-host" : "") < 0) { + goto error; + }; + + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", str); + + if (xlu_vscsi_get_host(cfg->xlu, cfg->ctx, vm->def->id, str, &vscsidev) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("libxutil failed to parse scsi device %u:%u:%u:%u"), + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit); + } + + if (libxl_device_vscsi_add(cfg->ctx, vm->def->id, &vscsidev, NULL) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight failed to attach scsi device %u:%u:%u:%u"), + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit); + goto error; + } + + vm->def->hostdevs[vm->def->nhostdevs++] = hostdev; + ret = 0; + goto cleanup; + + error: + virHostdevReAttachSCSIDevices(hostdev_mgr, LIBXL_DRIVER_NAME, + vm->def->name, &hostdev, 1); + + cleanup: + VIR_FREE(str); + virObjectUnref(cfg); + libxl_device_vscsi_dispose(&vscsidev); + return ret; +#else + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This version of libxenlight does not support vscsi")); + return -1; +#endif +} + +static int libxlDomainAttachHostDevice(libxlDriverPrivatePtr driver, virDomainObjPtr vm, virDomainHostdevDefPtr hostdev) @@ -2960,6 +3051,11 @@ libxlDomainAttachHostDevice(libxlDriverPrivatePtr driver, return -1; break; + case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI: + if (libxlDomainAttachHostSCSIDevice(driver, vm, hostdev) < 0) + return -1; + break; + default: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("hostdev subsys type '%s' not supported"), @@ -3284,6 +3380,74 @@ libxlDomainDetachHostPCIDevice(libxlDriverPrivatePtr driver, } static int +libxlDomainDetachHostSCSIDevice(libxlDriverPrivatePtr driver, + virDomainObjPtr vm, + virDomainHostdevDefPtr hostdev) +{ +#if defined(LIBXL_HAVE_VSCSI) + libxlDriverConfigPtr cfg = libxlDriverConfigGet(driver); + virDomainHostdevDefPtr detach; + int idx; + virHostdevManagerPtr hostdev_mgr = driver->hostdevMgr; + virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi; + int ret = -1; + char *str = NULL; + + if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) + return -1; + + idx = virDomainHostdevFind(vm->def, hostdev, &detach); + if (idx < 0) { + virReportError(VIR_ERR_OPERATION_FAILED, + _("target scsi device %u:%u:%u:%u not found"), + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit); + goto cleanup; + } + + if (virAsprintf(&str, "%u:%u:%u:%u", + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit) < 0) { + goto error; + }; + + if (xlu_vscsi_detach(cfg->xlu, cfg->ctx, vm->def->id, str) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("libxenlight failed to detach pci device %u:%u:%u:%u"), + hostdev->info->addr.drive.controller, + hostdev->info->addr.drive.bus, + hostdev->info->addr.drive.target, + hostdev->info->addr.drive.unit); + goto error; + } + + + virDomainHostdevRemove(vm->def, idx); + + virHostdevReAttachPCIDevices(hostdev_mgr, LIBXL_DRIVER_NAME, + vm->def->name, &hostdev, 1, NULL); + + ret = 0; + + error: + VIR_FREE(str); + virDomainHostdevDefFree(detach); + + cleanup: + virObjectUnref(cfg); + return ret; +#else + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This version of libxenlight does not support vscsi")); + return -1; +#endif +} + +static int libxlDomainDetachHostDevice(libxlDriverPrivatePtr driver, virDomainObjPtr vm, virDomainHostdevDefPtr hostdev) @@ -3301,6 +3465,9 @@ libxlDomainDetachHostDevice(libxlDriverPrivatePtr driver, case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI: return libxlDomainDetachHostPCIDevice(driver, vm, hostdev); + case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI: + return libxlDomainDetachHostSCSIDevice(driver, vm, hostdev); + default: virReportError(VIR_ERR_INTERNAL_ERROR, _("unexpected hostdev type %d"), subsys->type);

2 1

[libvirt] [PATCH v2] caps: Fix regression defaulting to host arch
by Cole Robinson 08 May '15

08 May '15

My commit 747761a79 (v1.2.15 only) dropped this bit of logic when filling in a default arch in the XML: - /* First try to find one matching host arch */ - for (i = 0; i < caps->nguests; i++) { - if (caps->guests[i]->ostype == ostype) { - for (j = 0; j < caps->guests[i]->arch.ndomains; j++) { - if (caps->guests[i]->arch.domains[j]->type == domain && - caps->guests[i]->arch.id == caps->host.arch) - return caps->guests[i]->arch.id; - } - } - } That attempt to match host.arch is important, otherwise we end up defaulting to i686 on x86_64 host for KVM, which is not intended. Duplicate it in the centralized CapsLookup function. Additionally add some testcases that would have caught this. https://bugzilla.redhat.com/show_bug.cgi?id=1219191 --- v2: Tweak subject add test case for type=qemu as well src/conf/capabilities.c | 63 +++++++++++++++------- .../qemuxml2argv-default-kvm-host-arch.args | 4 ++ .../qemuxml2argv-default-kvm-host-arch.xml | 11 ++++ .../qemuxml2argv-default-qemu-host-arch.args | 4 ++ .../qemuxml2argv-default-qemu-host-arch.xml | 11 ++++ tests/qemuxml2argvtest.c | 2 + .../qemuxml2xmlout-default-kvm-host-arch.xml | 21 ++++++++ .../qemuxml2xmlout-default-qemu-host-arch.xml | 21 ++++++++ tests/qemuxml2xmltest.c | 2 + tests/testutilsqemu.c | 12 +++++ 10 files changed, 132 insertions(+), 19 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-default-qemu-host-arch.xml diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c index 922741f..c43bfb3 100644 --- a/src/conf/capabilities.c +++ b/src/conf/capabilities.c @@ -607,25 +607,13 @@ virCapsDomainDataCompare(virCapsGuestPtr guest, return true; } -/** - * virCapabilitiesDomainDataLookup: - * @caps: capabilities to query - * @ostype: guest operating system type, of enum VIR_DOMAIN_OSTYPE - * @arch: Architecture to search for - * @domaintype: domain type to search for, of enum VIR_DOMAIN_VIRT - * @emulator: Emulator path to search for - * @machinetype: Machine type to search for - * - * Search capabilities for the passed values, and if found return - * virCapabilitiesDomainDataLookup filled in with the default values - */ -virCapsDomainDataPtr -virCapabilitiesDomainDataLookup(virCapsPtr caps, - int ostype, - virArch arch, - int domaintype, - const char *emulator, - const char *machinetype) +static virCapsDomainDataPtr +virCapabilitiesDomainDataLookupInternal(virCapsPtr caps, + int ostype, + virArch arch, + int domaintype, + const char *emulator, + const char *machinetype) { virCapsGuestPtr foundguest = NULL; virCapsGuestDomainPtr founddomain = NULL; @@ -730,6 +718,43 @@ virCapabilitiesDomainDataLookup(virCapsPtr caps, return ret; } +/** + * virCapabilitiesDomainDataLookup: + * @caps: capabilities to query + * @ostype: guest operating system type, of enum VIR_DOMAIN_OSTYPE + * @arch: Architecture to search for + * @domaintype: domain type to search for, of enum VIR_DOMAIN_VIRT + * @emulator: Emulator path to search for + * @machinetype: Machine type to search for + * + * Search capabilities for the passed values, and if found return + * virCapabilitiesDomainDataLookup filled in with the default values + */ +virCapsDomainDataPtr +virCapabilitiesDomainDataLookup(virCapsPtr caps, + int ostype, + virArch arch, + int domaintype, + const char *emulator, + const char *machinetype) +{ + virCapsDomainDataPtr ret; + + if (arch == VIR_ARCH_NONE) { + /* Prefer host arch if its available */ + ret = virCapabilitiesDomainDataLookupInternal(caps, ostype, + caps->host.arch, + domaintype, + emulator, machinetype); + if (ret) + return ret; + } + + return virCapabilitiesDomainDataLookupInternal(caps, ostype, + arch, domaintype, + emulator, machinetype); +} + static int virCapabilitiesFormatNUMATopology(virBufferPtr buf, size_t ncells, diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args new file mode 100644 index 0000000..102691f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args @@ -0,0 +1,4 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/kvm -S -machine pc,accel=kvm -m 4096 -smp 4 -nographic \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb -net none \ +-serial none -parallel none diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml new file mode 100644 index 0000000..66dead0 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml @@ -0,0 +1,11 @@ +<domain type='kvm'> + <name>kvm</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type>hvm</type> + <boot dev='hd'/> + </os> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.args b/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.args new file mode 100644 index 0000000..5bd404c --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.args @@ -0,0 +1,4 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-x86_64 -S -machine pc-0.11,accel=tcg -m 4096 -smp 4 \ +-nographic -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c \ +-usb -net none -serial none -parallel none diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.xml b/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.xml new file mode 100644 index 0000000..85ddec5 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-qemu-host-arch.xml @@ -0,0 +1,11 @@ +<domain type='qemu'> + <name>qemu-host</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type>hvm</type> + <boot dev='hd'/> + </os> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 97c7fba..d317c9b 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -599,6 +599,8 @@ mymain(void) DO_TEST_FAILURE("machine-xen-vmport-opt", QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_MACHINE_VMPORT_OPT); DO_TEST("kvm", QEMU_CAPS_MACHINE_OPT); + DO_TEST("default-kvm-host-arch", QEMU_CAPS_MACHINE_OPT); + DO_TEST("default-qemu-host-arch", QEMU_CAPS_MACHINE_OPT); DO_TEST("boot-cdrom", NONE); DO_TEST("boot-network", NONE); DO_TEST("boot-floppy", NONE); diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml new file mode 100644 index 0000000..30fa66d --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml @@ -0,0 +1,21 @@ +<domain type='kvm'> + <name>kvm</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/kvm</emulator> + <controller type='usb' index='0'/> + <controller type='pci' index='0' model='pci-root'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-qemu-host-arch.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-qemu-host-arch.xml new file mode 100644 index 0000000..3e65b97 --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-qemu-host-arch.xml @@ -0,0 +1,21 @@ +<domain type='qemu'> + <name>qemu-host</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type arch='x86_64' machine='pc-0.11'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <controller type='usb' index='0'/> + <controller type='pci' index='0' model='pci-root'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index b611afd..99f402c 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -346,6 +346,8 @@ mymain(void) DO_TEST("minimal"); DO_TEST("machine-core-on"); DO_TEST("machine-core-off"); + DO_TEST_DIFFERENT("default-kvm-host-arch"); + DO_TEST_DIFFERENT("default-qemu-host-arch"); DO_TEST("boot-cdrom"); DO_TEST("boot-network"); DO_TEST("boot-floppy"); diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c index 14743be..d067bca 100644 --- a/tests/testutilsqemu.c +++ b/tests/testutilsqemu.c @@ -354,6 +354,18 @@ virCapsPtr testQemuCapsInit(void) NULL) == NULL) goto cleanup; + if ((machines = testQemuAllocMachines(&nmachines)) == NULL) + goto cleanup; + + if (virCapabilitiesAddGuestDomain(guest, + VIR_DOMAIN_VIRT_KVM, + "/usr/bin/qemu-kvm", + NULL, + nmachines, + machines) == NULL) + goto cleanup; + machines = NULL; + if ((machines = testQemuAllocNewerMachines(&nmachines)) == NULL) goto cleanup; -- 2.4.0

2 2

Re: [libvirt] vmfork in KVM
by Zhi Yong Wu 08 May '15

08 May '15

HI, all guys Why does vmfork not get supported by KVM project? What is the drawback? It's very cool if it's used in some scenario, e.g. HPC. It will be appreciated for your comments, thanks. On Fri, Oct 24, 2014 at 2:25 AM, Hu Yaohui <loki2441(a)gmail.com> wrote: > Hi all, > There are some vmfork features provided by Xen based on shadow page > table few years ago. I am wondering whether KVM provides the similar > feature on the same host. > By triggering vmfork, we can get a child VM which CPU and I/O status > is the same as the parent, and the memory is CoW shared with parent > VM. > > Thanks, > Yaohui > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo(a)vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Regards, Zhi Yong Wu

2 1

[libvirt] [PATCH 0/8] virsh: kill blockJobImpl
by Peter Krempa 08 May '15

08 May '15

Move the code to appropriate parts to sanitize control flow. Peter Krempa (8): virsh: blockjob: Extract block job info code into a separate function virsh: cmdBlockJob: Switch to declarative flag interlocking virsh: blockjob: Split out vshBlockJobSetSpeed from blockJobImpl virsh: man: Add missing dashes for blockjob --bandwidth virsh: block job: Support --bytes and scaled integers when setting speed virsh: block job: separate abort from blockJobImpl virsh: Split out block pull implementation from blockJobImpl virsh: Kill blockJobImpl by moving the final impl into cmdBlockCommit tools/virsh-domain.c | 314 +++++++++++++++++++++++++++++---------------------- tools/virsh.pod | 14 ++- 2 files changed, 189 insertions(+), 139 deletions(-) -- 2.3.5

3 18

[libvirt] RFC Parallels driver renaming
by Maxim Nestratov 07 May '15

07 May '15

Hi all, You probably already know that our Parallels business devision responsible for Parallels Cloud Server, which is supported currently in libvirt as a "parallels" driver, was recently renamed to Odin [1]. As a part of this change our Parallels Cloud Server product name was also changed to Virtuozzo [2]. That said, we need to address this change in all publicly available products and projects and libvirt is not an exception. Thus, I intend to do the following renaming: 1. connection uri from "parallels" to "vz", 2. driver directory and source files from "parallels" to "vz", 3. internal names (function prefixes, variable and other names) from "parallels", "prl" to "vz". I would like to request for comments about proposed renamings, if they are affordable? If so, I will send the patch series shortly. Maxim Nestratov --- [1] http://www.odin.com/odin/ [2] http://www.odin.com/products/virtuozzo/#tab4

2 4

[libvirt] [PATCH] tests: Remove redundant aarch64 tests
by Cole Robinson 07 May '15

07 May '15

My commit 7b9de914 added some aarch64 CPU test cases. I wanted to test two different code paths but inadvertently added two of the same test cases. The second code path (using <cpu><model>host</model</cpu>) isn't easily exercised via the qemu tests anyways, I'll need to look elsewhere. Regardless, remove the redundant tests for now --- .../qemuxml2argv-aarch64-cpu-model-host.args | 5 ---- .../qemuxml2argv-aarch64-cpu-model-host.xml | 28 ---------------------- tests/qemuxml2argvtest.c | 3 --- .../qemuxml2argv-aarch64-cpu-passthrough.xml | 27 --------------------- tests/qemuxml2xmltest.c | 2 -- 5 files changed, 65 deletions(-) delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.args delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.xml delete mode 100644 tests/qemuxml2xmloutdata/qemuxml2argv-aarch64-cpu-passthrough.xml diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.args b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.args deleted file mode 100644 index 72e6526..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.args +++ /dev/null @@ -1,5 +0,0 @@ -LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -/usr/bin/qemu-system-aarch64 -S -M virt -cpu host -m 1024 -smp 1 -nographic \ --nodefconfig -nodefaults -monitor unix:/tmp/test-monitor,server,nowait \ --boot c -usb -drive file=/aarch64.raw,if=none,id=drive-virtio-disk0 \ --device virtio-blk-device,drive=drive-virtio-disk0,id=virtio-disk0 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.xml b/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.xml deleted file mode 100644 index 53d528f..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-aarch64-cpu-model-host.xml +++ /dev/null @@ -1,28 +0,0 @@ -<domain type='kvm'> - <name>aarch64test</name> - <uuid>496d7ea8-9739-544b-4ebd-ef08be936e8b</uuid> - <memory unit='KiB'>1048576</memory> - <currentMemory unit='KiB'>1048576</currentMemory> - <vcpu placement='static'>1</vcpu> - <os> - <type arch='aarch64' machine='virt'>hvm</type> - <boot dev='hd'/> - </os> - <features> - <acpi/> - <apic/> - <pae/> - </features> - <cpu mode='host-passthrough'/> - <clock offset='utc'/> - <on_poweroff>destroy</on_poweroff> - <on_reboot>restart</on_reboot> - <on_crash>restart</on_crash> - <devices> - <emulator>/usr/bin/qemu-system-aarch64</emulator> - <disk type='file' device='disk'> - <source file='/aarch64.raw'/> - <target dev='vda' bus='virtio'/> - </disk> - </devices> -</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 97c7fba..aa15822 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1538,9 +1538,6 @@ mymain(void) DO_TEST("aarch64-cpu-passthrough", QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_DEVICE_VIRTIO_MMIO, QEMU_CAPS_CPU_HOST, QEMU_CAPS_KVM); - DO_TEST("aarch64-cpu-model-host", QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, - QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_DEVICE_VIRTIO_MMIO, - QEMU_CAPS_CPU_HOST, QEMU_CAPS_KVM); DO_TEST("aarch64-gic", QEMU_CAPS_DEVICE, QEMU_CAPS_DRIVE, QEMU_CAPS_KVM); diff --git a/tests/qemuxml2xmloutdata/qemuxml2argv-aarch64-cpu-passthrough.xml b/tests/qemuxml2xmloutdata/qemuxml2argv-aarch64-cpu-passthrough.xml deleted file mode 100644 index 4cdf387..0000000 --- a/tests/qemuxml2xmloutdata/qemuxml2argv-aarch64-cpu-passthrough.xml +++ /dev/null @@ -1,27 +0,0 @@ -<domain type="kvm"> - <name>aarch64test</name> - <uuid>496d7ea8-9739-544b-4ebd-ef08be936e8b</uuid> - <memory>1048576</memory> - <currentMemory>1048576</currentMemory> - <vcpu placement='static'>1</vcpu> - <os> - <type arch="aarch64" machine="virt">hvm</type> - </os> - <features> - <acpi/> - <apic/> - <pae/> - </features> - <cpu mode='host-passthrough'/> - <clock offset="utc"/> - <on_poweroff>destroy</on_poweroff> - <on_reboot>restart</on_reboot> - <on_crash>restart</on_crash> - <devices> - <emulator>/usr/bin/qemu-system-aarch64</emulator> - <disk type='file' device='disk'> - <source file='/aarch64.raw'/> - <target dev='vda' bus='virtio'/> - </disk> - </devices> -</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index b611afd..d418776 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -614,8 +614,6 @@ mymain(void) DO_TEST("memory-hotplug-nonuma"); DO_TEST("memory-hotplug-dimm"); - DO_TEST("aarch64-cpu-model-host"); - virObjectUnref(driver.caps); virObjectUnref(driver.xmlopt); -- 2.4.0

2 2

[libvirt] [PATCH 0/4] Enable support for s390 crypto key mgmt operations
by akrowiak＠linux.vnet.ibm.com 07 May '15

07 May '15

From: Tony Krowiak <akrowiak(a)linux.vnet.ibm.com> The IBM System z Central Processor Assist for Cryptographic Functions (CPACF) hardware provides a set of CPU instructions for use in clear-key encryption, pseudo random number generation, hash functions, and protected-key encryption. The CPACF protected key cryptographic functions operate with a protected key which is encrypted under a unique wrapping key that is stored in the Hardware System Area (HSA) of the machine and can only be accessed by firmware. The wrapping key cannot be accessed by the operating system or application programs. There are two wrapping keys: One for wrapping AES keys and one for wrapping DES/TDES keys. This patch set enables the support for encrypting clear keys under the AES and DES/TDES wrapping keys for guests started on hosts running on s390 hardware that supports key wrapping. Tony Krowiak (4): libvirt: docs: XML to enable/disable protected key mgmt ops libvirt: conf: parse XML for protected key management ops libvirt: qemu: enable/disable protected key management ops libvirt: tests: test protected key mgmt ops support

1 4

[libvirt] [PATCH] cpu_conf: properly escape characters for model and vendor
by Pavel Hrdina 07 May '15

07 May '15

We should escape strings for those two elements to be consistent along the whole XML. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1197580 Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com> --- src/conf/cpu_conf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c index e959ecc..34725c0 100644 --- a/src/conf/cpu_conf.c +++ b/src/conf/cpu_conf.c @@ -547,14 +547,14 @@ virCPUDefFormatBuf(virBufferPtr buf, virBufferAsprintf(buf, " vendor_id='%s'", def->vendor_id); } if (formatModel && def->model) { - virBufferAsprintf(buf, ">%s</model>\n", def->model); + virBufferEscapeString(buf, ">%s</model>\n", def->model); } else { virBufferAddLit(buf, "/>\n"); } } if (formatModel && def->vendor) - virBufferAsprintf(buf, "<vendor>%s</vendor>\n", def->vendor); + virBufferEscapeString(buf, "<vendor>%s</vendor>\n", def->vendor); if (def->sockets && def->cores && def->threads) { virBufferAddLit(buf, "<topology"); -- 2.3.6

2 2

[libvirt] [PATCH v2] processSerialChangedEvent: Close agent monitor early
by Michal Privoznik 07 May '15

07 May '15

https://bugzilla.redhat.com/show_bug.cgi?id=890648 So, imagine you've issued an API that involves guest agent. For instance, you want to query guest's IP addresses. So the API acquires QUERY_JOB, locks the guest agent and issues the agent command. However, for some reason, guest agent replies to initial ping correctly, but then crashes tragically while executing real command (in this case guest-network-get-interfaces). Since initial ping went well, libvirt thinks guest agent is accessible and awaits reply to the real command. But it will never come. What will is a monitor event. Our handler (processSerialChangedEvent) will try to acquire MODIFY_JOB, which will fail obviously because the other thread that's executing the API already holds a job. So the event handler exits early, and the QUERY_JOB is never released nor ended. The way how to solve this is to put flag somewhere in the monitor internals. The flag is called @running and agent commands are issued iff the flag is set. The flag itself is set when we connect to the agent socket. And unset whenever we see DISCONNECT event from the agent. Moreover, we must wake up all the threads waiting for the agent. This is done by signalizing the condition they're waiting on. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- diff to v1: - introduced @running flag to produce prettier error message src/qemu/qemu_agent.c | 53 ++++++++++++++++++++++++++++++++++++++++++-------- src/qemu/qemu_agent.h | 2 ++ src/qemu/qemu_driver.c | 8 ++++++++ 3 files changed, 55 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c index 3f6a9bf..fc23c41 100644 --- a/src/qemu/qemu_agent.c +++ b/src/qemu/qemu_agent.c @@ -92,6 +92,7 @@ struct _qemuAgent { int watch; bool connectPending; + bool running; virDomainObjPtr vm; @@ -772,6 +773,7 @@ qemuAgentOpen(virDomainObjPtr vm, goto cleanup; } + mon->running = true; VIR_DEBUG("New mon %p fd =%d watch=%d", mon, mon->fd, mon->watch); return mon; @@ -788,6 +790,36 @@ qemuAgentOpen(virDomainObjPtr vm, } +static void +qemuAgentNotifyCloseLocked(qemuAgentPtr mon) +{ + if (mon) { + mon->running = false; + + /* If there is somebody waiting for a message + * wake him up. No message will arrive anyway. */ + if (mon->msg && !mon->msg->finished) { + mon->msg->finished = 1; + virCondSignal(&mon->notify); + } + } +} + + +void +qemuAgentNotifyClose(qemuAgentPtr mon) +{ + if (!mon) + return; + + VIR_DEBUG("mon=%p", mon); + + virObjectLock(mon); + qemuAgentNotifyCloseLocked(mon); + virObjectUnlock(mon); +} + + void qemuAgentClose(qemuAgentPtr mon) { if (!mon) @@ -803,12 +835,7 @@ void qemuAgentClose(qemuAgentPtr mon) VIR_FORCE_CLOSE(mon->fd); } - /* If there is somebody waiting for a message - * wake him up. No message will arrive anyway. */ - if (mon->msg && !mon->msg->finished) { - mon->msg->finished = 1; - virCondSignal(&mon->notify); - } + qemuAgentNotifyCloseLocked(mon); virObjectUnlock(mon); virObjectUnref(mon); @@ -1087,6 +1114,12 @@ qemuAgentCommand(qemuAgentPtr mon, *reply = NULL; + if (!mon->running) { + virReportError(VIR_ERR_AGENT_UNRESPONSIVE, "%s", + _("Guest agent disappeared while executing command")); + return -1; + } + if (qemuAgentGuestSync(mon) < 0) return -1; @@ -1112,8 +1145,12 @@ qemuAgentCommand(qemuAgentPtr mon, if (await_event && !needReply) { VIR_DEBUG("Woken up by event %d", await_event); } else { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("Missing monitor reply object")); + if (mon->running) + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("Missing monitor reply object")); + else + virReportError(VIR_ERR_AGENT_UNRESPONSIVE, "%s", + _("Guest agent disappeared while executing command")); ret = -1; } } else { diff --git a/src/qemu/qemu_agent.h b/src/qemu/qemu_agent.h index 1cd5749..988228b 100644 --- a/src/qemu/qemu_agent.h +++ b/src/qemu/qemu_agent.h @@ -49,6 +49,8 @@ qemuAgentPtr qemuAgentOpen(virDomainObjPtr vm, void qemuAgentClose(qemuAgentPtr mon); +void qemuAgentNotifyClose(qemuAgentPtr mon); + typedef enum { QEMU_AGENT_EVENT_NONE = 0, QEMU_AGENT_EVENT_SHUTDOWN, diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 537797e..f40ccae 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4480,6 +4480,14 @@ processSerialChangedEvent(virQEMUDriverPtr driver, VIR_DEBUG("Changing serial port state %s in domain %p %s", devAlias, vm, vm->def->name); + if (newstate == VIR_DOMAIN_CHR_DEVICE_STATE_DISCONNECTED && + virDomainObjIsActive(vm) && priv->agent) { + /* Close agent monitor early, so that other threads + * waiting for the agent to reply can finish and our + * job we acquire below can succeed. */ + qemuAgentNotifyClose(priv->agent); + } + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) goto cleanup; -- 2.3.6

2 2

[libvirt] storage volume download/upload
by Vasiliy Tolstov 07 May '15

07 May '15

As i see in some cases, for example in case of lvm storage pool libvirt spawns libvirt_iohelper to upload or download data to volume. But in case of big data contains zeroes this is wast bw of network. May be we can use gzip or lz4 for compression stream? How the best do this not breaking exiting software? May be add new parameter to libvirt_iohelper with compression method and compression level? In my cases of 20-160 Gb data and used only 4-5 Gb this provide major benefit.... Thanks! -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru jabber: vase(a)selfip.ru

2 4

[libvirt] [RFC PATCH] network: add an option to disable dnsmasq's bind-dynamic
by Cédric Bosdonnat 07 May '15

07 May '15

When building vlans on top of veth networks, dnsmasq doesn't catch DNS requests on the vlans interfaces. Allowing to disable the bind-dynamic helps this use case. --- src/conf/network_conf.c | 12 ++++++++++++ src/conf/network_conf.h | 1 + src/network/bridge_driver.c | 3 ++- 3 files changed, 15 insertions(+), 1 deletion(-) diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c index f4a9df0..63e26e1 100644 --- a/src/conf/network_conf.c +++ b/src/conf/network_conf.c @@ -1987,6 +1987,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt) xmlNodePtr forwardNode = NULL; char *ipv6nogwStr = NULL; char *trustGuestRxFilters = NULL; + char *binddynamicStr = NULL; xmlNodePtr save = ctxt->node; xmlNodePtr bandwidthNode = NULL; xmlNodePtr vlanNode; @@ -2049,6 +2050,16 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt) VIR_FREE(trustGuestRxFilters); } + /* Default for binddynamic is on */ + def->binddynamic = true; + binddynamicStr = virXPathString("string(./@binddynamic)", ctxt); + if (binddynamicStr) { + if (STRNEQ(binddynamicStr, "no")) { + def->binddynamic = false; + } + VIR_FREE(binddynamicStr); + } + /* Parse network domain information */ def->domain = virXPathString("string(./domain[1]/@name)", ctxt); tmp = virXPathString("string(./domain[1]/@localOnly)", ctxt); @@ -2326,6 +2337,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt) VIR_FREE(ipNodes); VIR_FREE(portGroupNodes); VIR_FREE(ipv6nogwStr); + VIR_FREE(binddynamicStr); VIR_FREE(trustGuestRxFilters); ctxt->node = save; return NULL; diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h index f69d999..163581e 100644 --- a/src/conf/network_conf.h +++ b/src/conf/network_conf.h @@ -253,6 +253,7 @@ struct _virNetworkDef { virNetDevBandwidthPtr bandwidth; virNetDevVlan vlan; int trustGuestRxFilters; /* enum virTristateBool */ + bool binddynamic; /* to force off bind_dynamic option of dnsmasq */ }; typedef struct _virNetworkObj virNetworkObj; diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index d195085..5dddc4b 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -988,7 +988,8 @@ networkDnsmasqConfContents(virNetworkObjPtr network, /* dnsmasq will *always* listen on localhost unless told otherwise */ virBufferAddLit(&configbuf, "except-interface=lo\n"); - if (dnsmasqCapsGet(caps, DNSMASQ_CAPS_BIND_DYNAMIC)) { + if (network->def->binddynamic && + dnsmasqCapsGet(caps, DNSMASQ_CAPS_BIND_DYNAMIC)) { /* using --bind-dynamic with only --interface (no * --listen-address) prevents dnsmasq from responding to dns * queries that arrive on some interface other than our bridge -- 2.1.4

3 2

[libvirt] [PATCH] caps: Don't default to i686 of KVM on x86_64
by Cole Robinson 07 May '15

07 May '15

My commit 747761a79 (v1.2.15 only) dropped this bit of logic when filling in a default arch in the XML: - /* First try to find one matching host arch */ - for (i = 0; i < caps->nguests; i++) { - if (caps->guests[i]->ostype == ostype) { - for (j = 0; j < caps->guests[i]->arch.ndomains; j++) { - if (caps->guests[i]->arch.domains[j]->type == domain && - caps->guests[i]->arch.id == caps->host.arch) - return caps->guests[i]->arch.id; - } - } - } That attempt to match host.arch is important, otherwise we end up defaulting to i686 on x86_64 host for KVM, which is not intended. Duplicate it in the centralized CapsLookup function. Additionally add some testcases that would have caught this. https://bugzilla.redhat.com/show_bug.cgi?id=1219191 --- src/conf/capabilities.c | 63 +++++++++++++++------- .../qemuxml2argv-default-kvm-host-arch.args | 4 ++ .../qemuxml2argv-default-kvm-host-arch.xml | 11 ++++ tests/qemuxml2argvtest.c | 1 + .../qemuxml2xmlout-default-kvm-host-arch.xml | 21 ++++++++ tests/qemuxml2xmltest.c | 1 + tests/testutilsqemu.c | 12 +++++ 7 files changed, 94 insertions(+), 19 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c index 922741f..c43bfb3 100644 --- a/src/conf/capabilities.c +++ b/src/conf/capabilities.c @@ -607,25 +607,13 @@ virCapsDomainDataCompare(virCapsGuestPtr guest, return true; } -/** - * virCapabilitiesDomainDataLookup: - * @caps: capabilities to query - * @ostype: guest operating system type, of enum VIR_DOMAIN_OSTYPE - * @arch: Architecture to search for - * @domaintype: domain type to search for, of enum VIR_DOMAIN_VIRT - * @emulator: Emulator path to search for - * @machinetype: Machine type to search for - * - * Search capabilities for the passed values, and if found return - * virCapabilitiesDomainDataLookup filled in with the default values - */ -virCapsDomainDataPtr -virCapabilitiesDomainDataLookup(virCapsPtr caps, - int ostype, - virArch arch, - int domaintype, - const char *emulator, - const char *machinetype) +static virCapsDomainDataPtr +virCapabilitiesDomainDataLookupInternal(virCapsPtr caps, + int ostype, + virArch arch, + int domaintype, + const char *emulator, + const char *machinetype) { virCapsGuestPtr foundguest = NULL; virCapsGuestDomainPtr founddomain = NULL; @@ -730,6 +718,43 @@ virCapabilitiesDomainDataLookup(virCapsPtr caps, return ret; } +/** + * virCapabilitiesDomainDataLookup: + * @caps: capabilities to query + * @ostype: guest operating system type, of enum VIR_DOMAIN_OSTYPE + * @arch: Architecture to search for + * @domaintype: domain type to search for, of enum VIR_DOMAIN_VIRT + * @emulator: Emulator path to search for + * @machinetype: Machine type to search for + * + * Search capabilities for the passed values, and if found return + * virCapabilitiesDomainDataLookup filled in with the default values + */ +virCapsDomainDataPtr +virCapabilitiesDomainDataLookup(virCapsPtr caps, + int ostype, + virArch arch, + int domaintype, + const char *emulator, + const char *machinetype) +{ + virCapsDomainDataPtr ret; + + if (arch == VIR_ARCH_NONE) { + /* Prefer host arch if its available */ + ret = virCapabilitiesDomainDataLookupInternal(caps, ostype, + caps->host.arch, + domaintype, + emulator, machinetype); + if (ret) + return ret; + } + + return virCapabilitiesDomainDataLookupInternal(caps, ostype, + arch, domaintype, + emulator, machinetype); +} + static int virCapabilitiesFormatNUMATopology(virBufferPtr buf, size_t ncells, diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args new file mode 100644 index 0000000..102691f --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.args @@ -0,0 +1,4 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/kvm -S -machine pc,accel=kvm -m 4096 -smp 4 -nographic \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb -net none \ +-serial none -parallel none diff --git a/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml new file mode 100644 index 0000000..66dead0 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-default-kvm-host-arch.xml @@ -0,0 +1,11 @@ +<domain type='kvm'> + <name>kvm</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type>hvm</type> + <boot dev='hd'/> + </os> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 97c7fba..b27e3a4 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -599,6 +599,7 @@ mymain(void) DO_TEST_FAILURE("machine-xen-vmport-opt", QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_MACHINE_VMPORT_OPT); DO_TEST("kvm", QEMU_CAPS_MACHINE_OPT); + DO_TEST("default-kvm-host-arch", QEMU_CAPS_MACHINE_OPT); DO_TEST("boot-cdrom", NONE); DO_TEST("boot-network", NONE); DO_TEST("boot-floppy", NONE); diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml new file mode 100644 index 0000000..30fa66d --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-default-kvm-host-arch.xml @@ -0,0 +1,21 @@ +<domain type='kvm'> + <name>kvm</name> + <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid> + <memory unit='KiB'>4194304</memory> + <currentMemory unit='KiB'>4194304</currentMemory> + <vcpu placement='static'>4</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/kvm</emulator> + <controller type='usb' index='0'/> + <controller type='pci' index='0' model='pci-root'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index b611afd..a21a299 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -346,6 +346,7 @@ mymain(void) DO_TEST("minimal"); DO_TEST("machine-core-on"); DO_TEST("machine-core-off"); + DO_TEST_DIFFERENT("default-kvm-host-arch"); DO_TEST("boot-cdrom"); DO_TEST("boot-network"); DO_TEST("boot-floppy"); diff --git a/tests/testutilsqemu.c b/tests/testutilsqemu.c index 14743be..d067bca 100644 --- a/tests/testutilsqemu.c +++ b/tests/testutilsqemu.c @@ -354,6 +354,18 @@ virCapsPtr testQemuCapsInit(void) NULL) == NULL) goto cleanup; + if ((machines = testQemuAllocMachines(&nmachines)) == NULL) + goto cleanup; + + if (virCapabilitiesAddGuestDomain(guest, + VIR_DOMAIN_VIRT_KVM, + "/usr/bin/qemu-kvm", + NULL, + nmachines, + machines) == NULL) + goto cleanup; + machines = NULL; + if ((machines = testQemuAllocNewerMachines(&nmachines)) == NULL) goto cleanup; -- 2.4.0

3 2

[libvirt] [PATCH] processSerialChangedEvent: Close agent monitor early
by Michal Privoznik 07 May '15

07 May '15

https://bugzilla.redhat.com/show_bug.cgi?id=890648 So, imagine you've issued an API that involves guest agent. For instance, you want to query guest's IP addresses. So the API acquires QUERY_JOB, locks the guest agent and issues the agemt command. However, for some reason, guest agent replies to initial ping correctly, but then crashes tragically while executing real command (in this case guest-network-get-interfaces). Since initial ping went well, libvirt thinks guest agent is accessible and awaits reply to the real command. But it will never come. What will is a monitor event. Our handler (processSerialChangedEvent) will try to acquire MODIFY_JOB, which will fail obviously because the other thread that's executing the API already holds a job. So the event handler exits early, and the QUERY_JOB is never released nor ended. I don't understand why, but qemu should in fact instead of sending a event on the monitor close the socket. But leave that for a different discussion. Since qemu is not doing that, we must work around it and close and unregister the agent's FD from the even loop ourselves. This will wake up all callers stuck in waiting for agent's reply. Hopefully, it will make them finish the job too and even handler can acquire its job later. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_driver.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index d173aa1..becb6ae 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4480,6 +4480,14 @@ processSerialChangedEvent(virQEMUDriverPtr driver, VIR_DEBUG("Changing serial port state %s in domain %p %s", devAlias, vm, vm->def->name); + if (newstate == VIR_DOMAIN_CHR_DEVICE_STATE_DISCONNECTED && + virDomainObjIsActive(vm) && priv->agent) { + /* Close agent monitor early, so that other threads + * waiting for the agent to reply can finish and our + * job we acquire below can succeed. */ + qemuAgentClose(priv->agent); + } + if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) goto cleanup; @@ -4508,7 +4516,6 @@ processSerialChangedEvent(virQEMUDriverPtr driver, } } else { if (priv->agent) { - qemuAgentClose(priv->agent); priv->agent = NULL; priv->agentError = false; } -- 2.3.6

3 4

[libvirt] [PATCH] libxl: include a XLU_Config in _libxlDriverConfig
by Olaf Hering 07 May '15

07 May '15

Upcoming changes for vscsi will use libxlutil.so to prepare the configuration for libxl. The helpers needs a xlu struct for logging. Provide one and reuse the existing output as log target. Signed-off-by: Olaf Hering <olaf(a)aepfle.de> Cc: Jim Fehlig <jfehlig(a)suse.com> --- src/libxl/libxl_conf.c | 6 ++++++ src/libxl/libxl_conf.h | 7 +++++++ 2 files changed, 13 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 53f327b..f9bb5ed 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1454,6 +1454,12 @@ libxlDriverConfigNew(void) goto error; } + cfg->xlu = xlu_cfg_init(cfg->logger_file, "libvirt"); + if (!cfg->xlu) { + VIR_ERROR(_("cannot create xlu for libxenlight, disabling driver")); + goto error; + } + if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, cfg->logger)) { VIR_ERROR(_("cannot initialize libxenlight context, probably not " "running in a Xen Dom0, disabling driver")); diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index 5ba1a71..bdc68d4 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -27,6 +27,12 @@ # define LIBXL_CONF_H # include <libxl.h> +#ifdef HAVE_LIBXLUTIL_H +# include <libxlutil.h> +#else +typedef struct XLU_Config XLU_Config; +XLU_Config *xlu_cfg_init(FILE *report, const char *report_filename); +#endif # include "internal.h" # include "libvirt_internal.h" @@ -91,6 +97,7 @@ struct _libxlDriverConfig { /* log stream for driver-wide libxl ctx */ FILE *logger_file; xentoollog_logger *logger; + XLU_Config *xlu; /* libxl ctx for driver wide ops; getVersion, getNodeInfo, ... */ libxl_ctx *ctx;

3 9

[libvirt] [PATCH 0/2] Storage : Fixes for cloning raw volumes
by Prerna Saxena 06 May '15

06 May '15

From: Prerna Saxena <prerna(a)linux.vnet.ibm.com> Date: Mon, 4 May 2015 12:00:46 -0700 This series has some long-overdue fixes for copying of raw storage volumes with libvirt. Prerna Saxena (2): Storage : Suppress metadata refresh for volumes being built. Storage : Fix cloning of raw, sparse volumes. src/storage/storage_backend.c | 5 ++++- src/storage/storage_driver.c | 5 ----- 2 files changed, 4 insertions(+), 6 deletions(-) -- 1.8.3.1 -- Prerna Saxena Linux Technology Centre, IBM Systems and Technology Lab, Bangalore, India

3 9

[libvirt] [PATCH] lxc: don't up the veth interfaces unless explicitly asked to
by Lubomir Rintel 06 May '15

06 May '15

Upping an interface for no reason and not configuring it is a cardinal sin. With the default addrgenmode if eui64 it sticks a link-local address to the interface. That is not good, as NetworkManager would see an address configured, assume the interface is already configured and won't touch it iself and the interface might stay unconfigured until the end of the days. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1124721 --- src/lxc/lxc_container.c | 2 +- src/lxc/lxc_native.c | 10 ++++------ 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index cc20b6d..50e38e9 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -541,7 +541,7 @@ static int lxcContainerRenameAndEnableInterfaces(virDomainDefPtr vmDef, VIR_FREE(ipStr); } - if (netDef->linkstate != VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN) { + if (netDef->linkstate == VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP) { VIR_DEBUG("Enabling %s", newname); rc = virNetDevSetOnline(newname, true); if (rc < 0) diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c index c15eb19..2297dbe 100644 --- a/src/lxc/lxc_native.c +++ b/src/lxc/lxc_native.c @@ -348,12 +348,10 @@ lxcCreateNetDef(const char *type, if (VIR_ALLOC(net) < 0) goto error; - if (flag) { - if (STREQ(flag, "up")) - net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP; - else - net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN; - } + if (flag && STREQ(flag, "up")) + net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP; + else + net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN; if (VIR_STRDUP(net->ifname_guest, name) < 0) goto error; -- 2.1.0

3 3

[libvirt] [PATCH] qemu: multiqueue for ccw devices
by Boris Fiuczynski 06 May '15

06 May '15

Allow ccw devices to be used with multiqueues. Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com> Reviewed-by: Matthew Rosato <mjrosato(a)linux.vnet.ibm.com> Reviewed-by: Daniel Hansel <daniel.hansel(a)linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck(a)de.ibm.comCornelia Huck <cornelia.huck(a)de.ibm.com>> --- src/qemu/qemu_command.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 2137985..0205831 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5062,9 +5062,13 @@ qemuBuildNicDevStr(virDomainDefPtr def, } } if (usingVirtio && vhostfdSize > 1) { - /* As advised at http://www.linux-kvm.org/page/Multiqueue - * we should add vectors=2*N+2 where N is the vhostfdSize */ - virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2); + if (net->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) { + virBufferAsprintf(&buf, ",mq=on"); + } else { + /* As advised at http://www.linux-kvm.org/page/Multiqueue + * we should add vectors=2*N+2 where N is the vhostfdSize */ + virBufferAsprintf(&buf, ",mq=on,vectors=%zu", 2 * vhostfdSize + 2); + } } if (vlan == -1) virBufferAsprintf(&buf, ",netdev=host%s", net->info.alias); -- 2.3.0

2 5

[libvirt] [PATCH] qemuDomainShutdownFlags: check for domain activeness prior to guest presence
by Michal Privoznik 06 May '15

06 May '15

Running shutdown with mode agent on a shutoff domain gives cryptic error message: virsh # shutdown --mode agent gentoo error: Failed to shutdown domain gentoo error: Guest agent is not responding: QEMU guest agent is not connected After this patch, the error is more clear: virsh # shutdown --mode agent gentoo error: Failed to shutdown domain gentoo error: Requested operation is not valid: domain is not running Reported-by: Martin Kletzander <mkletzan(a)redhat.com> Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_driver.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index d173aa1..537797e 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1989,21 +1989,21 @@ static int qemuDomainShutdownFlags(virDomainPtr dom, unsigned int flags) if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) goto cleanup; + if (!virDomainObjIsActive(vm)) { + virReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("domain is not running")); + goto endjob; + } + agentForced = agentRequested && !acpiRequested; if (!qemuDomainAgentAvailable(vm, agentForced)) { if (agentForced) goto endjob; useAgent = false; } - if (!virDomainObjIsActive(vm)) { - virReportError(VIR_ERR_OPERATION_INVALID, - "%s", _("domain is not running")); - goto endjob; - } - qemuDomainSetFakeReboot(driver, vm, isReboot); if (useAgent) { qemuDomainObjEnterAgent(vm); -- 2.3.6

2 1

[libvirt] [PATCH] virsh: fix no error output when parse cpulist fail
by Luyao Huang 06 May '15

06 May '15

When we pass a invalid cpulist or the lastcpu in the cpulist exceed the maxcpu, we cannot get any error. like this: # virsh vcpupin test3 1 aaa # virsh vcpupin test3 1 1000 Because virBitmapParse() use virReportError() to set the error message, virsh client use vshError to output error. If we want get the error which set by virReportError(), we need virGetLastError/virGetLastErrorMessage to help us. However instead of do this, i chose use vshError to output error when parse failed. Signed-off-by: Luyao Huang <lhuang(a)redhat.com> --- tools/virsh-domain.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 14e1e35..64bfbfd 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -6362,9 +6362,7 @@ vshParseCPUList(int *cpumaplen, const char *cpulist, int maxcpu) return NULL; } - if (virBitmapToData(map, &cpumap, cpumaplen) < 0) - goto cleanup; - + virBitmapToData(map, &cpumap, cpumaplen); cleanup: virBitmapFree(map); return cpumap; @@ -6458,8 +6456,10 @@ cmdVcpuPin(vshControl *ctl, const vshCmd *cmd) } } else { /* Pin mode: pinning specified vcpu to specified physical cpus*/ - if (!(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) + if (!(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) { + vshError(ctl, _("vcpupin: invalid cpulist '%s'"), cpulist); goto cleanup; + } if (flags == -1) { if (virDomainPinVcpu(dom, vcpu, cpumap, cpumaplen) != 0) @@ -6577,8 +6577,10 @@ cmdEmulatorPin(vshControl *ctl, const vshCmd *cmd) } /* Pin mode: pinning emulator threads to specified physical cpus*/ - if (!(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) + if (!(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) { + vshError(ctl, _("emulatorpin: invalid cpulist '%s'"), cpulist); goto cleanup; + } if (flags == -1) flags = VIR_DOMAIN_AFFECT_LIVE; @@ -6854,16 +6856,14 @@ cmdIOThreadPin(vshControl *ctl, const vshCmd *cmd) goto cleanup; } - if (vshCommandOptString(cmd, "cpulist", &cpulist) < 0) { - vshError(ctl, "%s", _("iothreadpin: invalid cpulist.")); - goto cleanup; - } - if ((maxcpu = vshNodeGetCPUCount(ctl->conn)) < 0) goto cleanup; - if (!(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) + if ((vshCommandOptString(cmd, "cpulist", &cpulist) < 0) || + !(cpumap = vshParseCPUList(&cpumaplen, cpulist, maxcpu))) { + vshError(ctl, "%s", _("iothreadpin: invalid cpulist.")); goto cleanup; + } if (virDomainPinIOThread(dom, iothread_id, cpumap, cpumaplen, flags) != 0) -- 1.8.3.1

2 2

[libvirt] [PATCH] libxl: initialize vfb defbools in libxlMakeVfb
by Olaf Hering 06 May '15

06 May '15

If the domU configu has sdl enabled libvirtd crashes: libvirtd[5158]: libvirtd: libxl.c:343: libxl_defbool_val: Assertion `!libxl_defbool_is_default(db)' failed. Initialize the relevant defbool variables in libxl_device_vfb. Signed-off-by: Olaf Hering <olaf(a)aepfle.de> Cc: Jim Fehlig <jfehlig(a)suse.com> --- Seen in 1.2.14. src/libxl/libxl_conf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 9b3c949..6feb7d9 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1232,6 +1232,7 @@ libxlMakeVfb(virPortAllocatorPtr graphicsports, switch (l_vfb->type) { case VIR_DOMAIN_GRAPHICS_TYPE_SDL: libxl_defbool_set(&x_vfb->sdl.enable, 1); + libxl_defbool_set(&x_vfb->vnc.enable, 0); if (VIR_STRDUP(x_vfb->sdl.display, l_vfb->data.sdl.display) < 0) return -1; if (VIR_STRDUP(x_vfb->sdl.xauthority, l_vfb->data.sdl.xauth) < 0) @@ -1239,6 +1240,7 @@ libxlMakeVfb(virPortAllocatorPtr graphicsports, break; case VIR_DOMAIN_GRAPHICS_TYPE_VNC: libxl_defbool_set(&x_vfb->vnc.enable, 1); + libxl_defbool_set(&x_vfb->sdl.enable, 0); /* driver handles selection of free port */ libxl_defbool_set(&x_vfb->vnc.findunused, 0); if (l_vfb->data.vnc.autoport) {

3 21

Re: [libvirt] [Qemu-devel] [Qemu-block] [RFC] Differential Backups
by Stefan Hajnoczi 06 May '15

06 May '15

On Tue, May 05, 2015 at 11:55:49AM -0400, John Snow wrote: > On 05/05/2015 06:25 AM, Stefan Hajnoczi wrote: > >On Wed, Apr 29, 2015 at 06:51:08PM -0400, John Snow wrote: > >>This is a feature that should be very easy to add on top of the existing > >>incremental feature, since it's just a difference in how the bitmap is > >>treated: > >> > >>Incremental > >>- Links to the last incremental (managed by libvirt) > >>- Clears the bitmap after creation > >> > >>Differential: > >>- Links to the last full backup always (managed by libvirt) > >>- Does not clear the bitmap after creation > >> > >>No biggie. > > > >Differential backups can be done using incremental backup functionality > >in QEMU: > > > >The client application points QEMU to the same target repeatedly instead > >of keeping separate incremental backups. > > > >Stefan > > > > Oh, so you're saying: > > [anchor]<--[diff1] > > And then when making a new incremental, we re-use diff1 as a target and > overwrite it so that it becomes: > > [anchor]<--[diff2] > > In effect giving us a differential. > > OK, so it's possible, but we still lose out on some flexibility that a > slightly different mode would provide us, like the ability to keep multiple > differentials if desired. (Well, I suppose we *can* create those by manually > copying differentials after we create them, but that seems hackier than > necessary.) > > Still, it would be such a paltry few lines of code and introduce no real > complexity to the subsystem, and it might make libvirt's time a little > easier for managing such things. I have CCed Eric Blake and the libvirt mailing list. This is a good time to discuss libvirt requirements for backup APIs. Current work for QEMU 2.4: * QMP command to take incremental backup of guest disks in a single atomic operation * Dirty bitmap persistence across live migration and QEMU restart Eric: Do you have any opinion on a differential backup feature in addition to incremental backup. My thoughts are that QEMU should only copy out changed blocks and let the backup application worry about concepts like incremental vs differential. From a host performance perspective, copying out the same blocks that have already been sent in a previous backup is a waste of I/O bandwidth. Even backup applications that want differential backup may not actually use the QEMU feature for this reason. Regarding the size of the patch, there's a cost to adding the tests, documentation, and commiting to QMP APIs. These costs dwarf the small code change that preserves the dirty bitmap. If there's a concrete requirement for this feature then I'm happy with it, but let's not add bells and whistles just because we can. Stefan

1 0

[libvirt] [PATCH] test: remove s390 tests used only for testing usb and ide controllers
by Laine Stump 05 May '15

05 May '15

Back in 2013, commit 877bc089 added in some tests that made sure no error was generated on a domain definition that had an automatically added usb controller if that domain didn't have a PCI bus to attach the usb controller to. In particular, two s390-specific tests were added, one with <controller type='usb' model='none'/> and another (called "s390-piix-controllers") that had both usb and ide controllers, but nothing attached to them. Then in February of this year, commit 09ab9dcc eliminated the annoying auto-adding of a usb device for s390 and s390x machines, stating: "Since s390 does not support usb the default creation of a usb controller for a domain should not occur." Since s390 doesn't support usb and usb controllers aren't added to s390 domain definitions automatically, there is no reason to have the tests with a usb controller and expect them to succeed. And since the only reference of an IDE controller wrt s390 that I've found is in the one test case mentioned above, and the commit log that added it specifically mentions the purpose to be quieting error messages on machines with no PCI bus, I'm assuming that the s390 also doesn't support IDE controllers. Based on that reasoning (and the fact that s390-piix-controllers causes a test error for an upcoming patch), this patch removes those two tests. --- .../qemuxml2argv-s390-piix-controllers.args | 12 -------- .../qemuxml2argv-s390-piix-controllers.xml | 34 ---------------------- .../qemuxml2argv-s390-usb-none.args | 12 -------- .../qemuxml2argv-s390-usb-none.xml | 29 ------------------ tests/qemuxml2argvtest.c | 10 ------- 5 files changed, 97 deletions(-) delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.args delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.xml delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.args delete mode 100644 tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.xml diff --git a/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.args b/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.args deleted file mode 100644 index e939be4..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.args +++ /dev/null @@ -1,12 +0,0 @@ -LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -/usr/bin/qemu-system-s390x -S -M s390-virtio -m 214 -smp 1 -nographic \ --nodefconfig -nodefaults \ --chardev socket,id=charmonitor,path=/tmp/test-monitor,server,nowait \ --mon chardev=charmonitor,id=monitor,mode=readline -no-acpi \ --device virtio-serial-s390,id=virtio-serial0 -drive \ -file=/dev/HostVG/QEMUGuest1,if=none,id=drive-virtio-disk0 \ --device virtio-blk-s390,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \ --chardev pty,id=charconsole0 \ --device virtconsole,chardev=charconsole0,id=console0 \ --object rng-random,id=objrng0,filename=/dev/hwrng \ --device virtio-rng-s390,rng=objrng0,id=rng0 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.xml b/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.xml deleted file mode 100644 index a8b72d7..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-s390-piix-controllers.xml +++ /dev/null @@ -1,34 +0,0 @@ -<domain type='qemu'> - <name>test</name> - <memory>219100</memory> - <currentMemory>219100</currentMemory> - <os> - <type arch='s390x' machine='s390-virtio'>hvm</type> - </os> - <clock offset='utc'/> - <on_poweroff>destroy</on_poweroff> - <on_reboot>restart</on_reboot> - <on_crash>destroy</on_crash> - <devices> - <emulator>/usr/bin/qemu-system-s390x</emulator> - <disk type='block' device='disk'> - <source dev='/dev/HostVG/QEMUGuest1'/> - <target dev='hda' bus='virtio'/> - <boot order='1'/> - </disk> - <console type='pty'> - <target type='virtio'/> - </console> - <controller type='usb' index='0'> - <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> - </controller> - <controller type='ide' index='0'> - <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> - </controller> - <memballoon model='virtio'> - </memballoon> - <rng model='virtio'> - <backend model='random'>/dev/hwrng</backend> - </rng> - </devices> -</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.args b/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.args deleted file mode 100644 index 51fcfa6..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.args +++ /dev/null @@ -1,12 +0,0 @@ -LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ -/usr/bin/qemu-system-s390x -S -M s390-virtio -m 214 -smp 1 \ --nographic -nodefconfig -nodefaults \ --chardev socket,id=charmonitor,path=/tmp/test-monitor,server,nowait \ --mon chardev=charmonitor,id=monitor,mode=readline -no-acpi \ --device virtio-serial-s390,id=virtio-serial0 \ --drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-virtio-disk0 \ --device virtio-blk-s390,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \ --chardev pty,id=charconsole0 \ --device virtconsole,chardev=charconsole0,id=console0 \ --object rng-random,id=objrng0,filename=/dev/hwrng \ --device virtio-rng-s390,rng=objrng0,id=rng0 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.xml b/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.xml deleted file mode 100644 index f2977b5..0000000 --- a/tests/qemuxml2argvdata/qemuxml2argv-s390-usb-none.xml +++ /dev/null @@ -1,29 +0,0 @@ -<domain type='qemu'> - <name>test</name> - <memory>219100</memory> - <currentMemory>219100</currentMemory> - <os> - <type arch='s390x' machine='s390-virtio'>hvm</type> - </os> - <clock offset='utc'/> - <on_poweroff>destroy</on_poweroff> - <on_reboot>restart</on_reboot> - <on_crash>destroy</on_crash> - <devices> - <emulator>/usr/bin/qemu-system-s390x</emulator> - <disk type='block' device='disk'> - <source dev='/dev/HostVG/QEMUGuest1'/> - <target dev='hda' bus='virtio'/> - <boot order='1'/> - </disk> - <console type='pty'> - <target type='virtio'/> - </console> - <controller type='usb' index='0' model='none'/> - <memballoon model='virtio'> - </memballoon> - <rng model='virtio'> - <backend model='random'>/dev/hwrng</backend> - </rng> - </devices> -</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 0763068..da5afd4 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1405,16 +1405,6 @@ mymain(void) QEMU_CAPS_VIRTIO_S390, QEMU_CAPS_DEVICE_VIRTIO_RNG, QEMU_CAPS_OBJECT_RNG_RANDOM); - DO_TEST("s390-usb-none", - QEMU_CAPS_DEVICE, QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG, - QEMU_CAPS_DRIVE, QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, - QEMU_CAPS_DEVICE_VIRTIO_RNG, QEMU_CAPS_OBJECT_RNG_RANDOM); - - DO_TEST("s390-piix-controllers", - QEMU_CAPS_DEVICE, QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG, - QEMU_CAPS_DRIVE, QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, - QEMU_CAPS_DEVICE_VIRTIO_RNG, QEMU_CAPS_OBJECT_RNG_RANDOM); - DO_TEST("ppc-dtb", QEMU_CAPS_KVM, QEMU_CAPS_DTB); DO_TEST("ppce500-serial", QEMU_CAPS_KVM, QEMU_CAPS_DEVICE, QEMU_CAPS_CHARDEV); -- 2.1.0

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[libvirt] [PATCH] libxl: support soundhw for hvm domains
by Jim Fehlig 05 May '15

05 May '15

The xend driver and the parsing/formating code in src/xenconfig have long supported soundhw. Add support in the libxl driver too. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- This patch continues the tradition of silently ignoring unsupported config in the libxl driver. But it is an improvement; post-patch only sound devices after the first are ignored :-). src/libxl/libxl_conf.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 2a09190..fccada5 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -678,6 +678,19 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_defbool_set(&b_info->u.hvm.hpet, 1); } } + + if (def->nsounds > 0) { + /* + * Use first sound device. man xl.cfg(5) describes soundhw as + * a single device. From the man page: soundhw=DEVICE + */ + virDomainSoundDefPtr snd = def->sounds[0]; + + if (VIR_STRDUP(b_info->u.hvm.soundhw, + virDomainSoundModelTypeToString(snd->model)) < 0) + return -1; + } + for (i = 0; i < def->os.nBootDevs; i++) { switch (def->os.bootDevs[i]) { case VIR_DOMAIN_BOOT_FLOPPY: -- 1.8.4.5

2 2

[libvirt] [PATCH] libxl: add logrotate config file
by Jim Fehlig 05 May '15

05 May '15

Add logrotate config for log files in /var/log/libvirt/libxl. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- daemon/Makefile.am | 13 ++++++++++++- daemon/libvirtd.libxl.logrotate.in | 9 +++++++++ libvirt.spec.in | 3 +++ 3 files changed, 24 insertions(+), 1 deletion(-) diff --git a/daemon/Makefile.am b/daemon/Makefile.am index 300b9a5..b19a126 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -62,6 +62,7 @@ EXTRA_DIST = \ libvirtd.logrotate.in \ libvirtd.qemu.logrotate.in \ libvirtd.lxc.logrotate.in \ + libvirtd.libxl.logrotate.in \ libvirtd.uml.logrotate.in \ test_libvirtd.aug.in \ THREADS.txt \ @@ -275,7 +276,8 @@ remote.c: $(DAEMON_GENERATED) remote.h: $(DAEMON_GENERATED) LOGROTATE_CONFS = libvirtd.qemu.logrotate libvirtd.lxc.logrotate \ - libvirtd.uml.logrotate libvirtd.logrotate + libvirtd.libxl.logrotate libvirtd.uml.logrotate \ + libvirtd.logrotate BUILT_SOURCES += $(LOGROTATE_CONFS) @@ -297,6 +299,12 @@ libvirtd.lxc.logrotate: libvirtd.lxc.logrotate.in < $< > $@-t && \ mv $@-t $@ +libvirtd.libxl.logrotate: libvirtd.libxl.logrotate.in + $(AM_V_GEN)sed \ + -e 's|[@]localstatedir[@]|$(localstatedir)|g' \ + < $< > $@-t && \ + mv $@-t $@ + libvirtd.uml.logrotate: libvirtd.uml.logrotate.in $(AM_V_GEN)sed \ -e 's|[@]localstatedir[@]|$(localstatedir)|g' \ @@ -314,6 +322,8 @@ install-logrotate: $(LOGROTATE_CONFS) $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.qemu $(INSTALL_DATA) libvirtd.lxc.logrotate \ $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.lxc + $(INSTALL_DATA) libvirtd.libxl.logrotate \ + $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.libxl $(INSTALL_DATA) libvirtd.uml.logrotate \ $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.uml @@ -321,6 +331,7 @@ uninstall-logrotate: rm -f $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd \ $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.qemu \ $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.lxc \ + $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.libxl \ $(DESTDIR)$(sysconfdir)/logrotate.d/libvirtd.uml rmdir $(DESTDIR)$(localstatedir)/log/libvirt/qemu || : rmdir $(DESTDIR)$(localstatedir)/log/libvirt/lxc || : diff --git a/daemon/libvirtd.libxl.logrotate.in b/daemon/libvirtd.libxl.logrotate.in new file mode 100644 index 0000000..523b2f8 --- /dev/null +++ b/daemon/libvirtd.libxl.logrotate.in @@ -0,0 +1,9 @@ +@localstatedir@/log/libvirt/libxl/*.log { + weekly + missingok + rotate 4 + compress + delaycompress + copytruncate + minsize 100k +} diff --git a/libvirt.spec.in b/libvirt.spec.in index f95e31f..3feda9d 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -1601,6 +1601,7 @@ rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d/libvirtd.lxc %endif %if ! %{with_libxl} rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/libvirt/libxl.conf +rm -rf $RPM_BUILD_ROOT%{_sysconfdir}/logrotate.d/libvirtd.libxl rm -f $RPM_BUILD_ROOT%{_datadir}/augeas/lenses/libvirtd_libxl.aug rm -f $RPM_BUILD_ROOT%{_datadir}/augeas/lenses/tests/test_libvirtd_libxl.aug %endif @@ -2007,6 +2008,7 @@ exit 0 %endif %if %{with_libxl} %config(noreplace) %{_sysconfdir}/libvirt/libxl.conf +%config(noreplace) %{_sysconfdir}/logrotate.d/libvirtd.libxl %dir %attr(0700, root, root) %{_localstatedir}/log/libvirt/libxl/ %ghost %dir %{_localstatedir}/run/libvirt/libxl/ %dir %attr(0700, root, root) %{_localstatedir}/lib/libvirt/libxl/ @@ -2129,6 +2131,7 @@ exit 0 %files daemon-driver-libxl %defattr(-, root, root) %config(noreplace) %{_sysconfdir}/libvirt/libxl.conf +%config(noreplace) %{_sysconfdir}/logrotate.d/libvirtd.libxl %config(noreplace) %{_sysconfdir}/libvirt/libxl-lockd.conf %config(noreplace) %{_sysconfdir}/libvirt/libxl-sanlock.conf %{_datadir}/augeas/lenses/libvirtd_libxl.aug -- 1.8.4.5

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