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[libvirt] [PATCH 04/12] libxl: populate xenstore memory entries at startup
by Marek Marczykowski 10 Apr '13

10 Apr '13

libxl uses some xenstore entries for hints in memory management (especially when starting new domain). This includes dom0 memory limit and Xen free memory margin, based on current system state. Entries are created at first usage, so force such usage at daemon startup, which most likely will be before any domain startup. --- src/libxl/libxl_driver.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 011edf8..89546a5 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -1115,6 +1115,7 @@ libxlStartup(bool privileged, char *log_file = NULL; virCommandPtr cmd; int status, ret = 0; + unsigned int free_mem; char ebuf[1024]; /* Disable libxl driver if non-root */ @@ -1240,6 +1241,13 @@ libxlStartup(bool privileged, goto error; } + /* This will fill xenstore info about free and dom0 memory - if missing, + * should be called before starting first domain */ + if (libxl_get_free_memory(libxl_driver->ctx, &free_mem)) { + VIR_ERROR(_("cannot get free memory info")); + goto error; + } + if (!(libxl_driver->xmlconf = virDomainXMLConfNew(&libxlDomainXMLPrivateDataCallbacks, NULL))) goto error; -- 1.8.1.4

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[libvirt] [PATCH 03/12] libxl: nodeDevice* support for PCI devices
by Marek Marczykowski 10 Apr '13

10 Apr '13

For now only for PCI devices. Mostly copy-paste from old xen driver. --- src/libxl/libxl_driver.c | 193 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 193 insertions(+) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 40a7a6b..011edf8 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -42,6 +42,7 @@ #include "libxl.h" #include "libxl_driver.h" #include "libxl_conf.h" +#include "node_device_conf.h" #include "xen_xm.h" #include "virtypedparam.h" #include "viruri.h" @@ -3666,6 +3667,195 @@ libxlDomainUpdateDeviceFlags(virDomainPtr dom, const char *xml, return libxlDomainModifyDeviceFlags(dom, xml, flags, LIBXL_DEVICE_UPDATE); } +static int +libxlNodeDeviceGetPciInfo(virNodeDevicePtr dev, + unsigned *domain, + unsigned *bus, + unsigned *slot, + unsigned *function) +{ + virNodeDeviceDefPtr def = NULL; + virNodeDevCapsDefPtr cap; + char *xml = NULL; + int ret = -1; + + xml = virNodeDeviceGetXMLDesc(dev, 0); + if (!xml) + goto out; + + def = virNodeDeviceDefParseString(xml, EXISTING_DEVICE, NULL); + if (!def) + goto out; + + cap = def->caps; + while (cap) { + if (cap->type == VIR_NODE_DEV_CAP_PCI_DEV) { + *domain = cap->data.pci_dev.domain; + *bus = cap->data.pci_dev.bus; + *slot = cap->data.pci_dev.slot; + *function = cap->data.pci_dev.function; + break; + } + + cap = cap->next; + } + + if (!cap) { + virReportError(VIR_ERR_INVALID_ARG, + _("device %s is not a PCI device"), dev->name); + goto out; + } + + ret = 0; +out: + virNodeDeviceDefFree(def); + VIR_FREE(xml); + return ret; +} + +static int +libxlNodeDeviceDettach(virNodeDevicePtr dev) +{ + virPCIDevicePtr pci; + unsigned domain, bus, slot, function; + int ret = -1; + + if (libxlNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0) + return -1; + + pci = virPCIDeviceNew(domain, bus, slot, function); + if (!pci) + return -1; + + if (virPCIDeviceDetach(pci, NULL, NULL, "pciback") < 0) + goto out; + + ret = 0; +out: + virPCIDeviceFree(pci); + return ret; +} + +static int +libxlNodeDeviceAssignedDomainId(virNodeDevicePtr dev) +{ + int numdomains; + int numpcidevs; + int ret = -1, i, j; + int *ids = NULL; + char *bdf = NULL; + char *xref = NULL; + unsigned int domain, bus, slot, function; + libxl_device_pci *pcidevs = NULL; + virConnectPtr conn = dev->conn; + libxlDriverPrivatePtr driver = conn->privateData; + + /* Get active domains */ + numdomains = libxlNumDomains(conn); + if (numdomains < 0) { + return ret; + } + if (numdomains > 0){ + if (VIR_ALLOC_N(ids, numdomains) < 0) { + virReportOOMError(); + goto out; + } + if ((numdomains = libxlListDomains(conn, &ids[0], numdomains)) < 0) { + goto out; + } + } + + /* Get pci bdf */ + if (libxlNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0) + goto out; + + if (virAsprintf(&bdf, "%04x:%02x:%02x.%0x", + domain, bus, slot, function) < 0) { + virReportOOMError(); + goto out; + } + + libxlDriverLock(driver); + /* Check if bdf is assigned to one of active domains */ + for (i = 0; i < numdomains; i++) { + pcidevs = libxl_device_pci_list(driver->ctx, ids[i], &numpcidevs); + if (pcidevs == NULL) { + continue; + } else { + for (j = 0; j < numpcidevs; j++) { + if (pcidevs[j].bus == bus && pcidevs[j].dev == slot && pcidevs[j].func == function) { + ret = ids[i]; + break; + } + } + VIR_FREE(pcidevs); + } + } + libxlDriverUnlock(driver); + + VIR_FREE(xref); + VIR_FREE(bdf); +out: + VIR_FREE(ids); + + return ret; +} + +static int +libxlNodeDeviceReAttach(virNodeDevicePtr dev) +{ + virPCIDevicePtr pci; + unsigned domain, bus, slot, function; + int ret = -1; + int domid; + + if (libxlNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0) + return -1; + + pci = virPCIDeviceNew(domain, bus, slot, function); + if (!pci) + return -1; + + /* Check if device is assigned to an active guest */ + if ((domid = libxlNodeDeviceAssignedDomainId(dev)) >= 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Device %s has been assigned to guest %d"), + dev->name, domid); + goto out; + } + + if (virPCIDeviceReattach(pci, NULL, NULL, "pciback") < 0) + goto out; + + ret = 0; +out: + virPCIDeviceFree(pci); + return ret; +} + +static int +libxlNodeDeviceReset(virNodeDevicePtr dev) +{ + virPCIDevicePtr pci; + unsigned domain, bus, slot, function; + int ret = -1; + + if (libxlNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0) + return -1; + + pci = virPCIDeviceNew(domain, bus, slot, function); + if (!pci) + return -1; + + if (virPCIDeviceReset(pci, NULL, NULL) < 0) + goto out; + + ret = 0; +out: + virPCIDeviceFree(pci); + return ret; +} + static unsigned long long libxlNodeGetFreeMemory(virConnectPtr conn) { @@ -4233,6 +4423,9 @@ static virDriver libxlDriver = { .nodeGetFreeMemory = libxlNodeGetFreeMemory, /* 0.9.0 */ .domainEventRegister = libxlDomainEventRegister, /* 0.9.0 */ .domainEventDeregister = libxlDomainEventDeregister, /* 0.9.0 */ + .nodeDeviceDettach = libxlNodeDeviceDettach, /* 1.0.4 */ + .nodeDeviceReAttach = libxlNodeDeviceReAttach, /* 1.0.4 */ + .nodeDeviceReset = libxlNodeDeviceReset, /* 1.0.4 */ .domainManagedSave = libxlDomainManagedSave, /* 0.9.2 */ .domainHasManagedSaveImage = libxlDomainHasManagedSaveImage, /* 0.9.2 */ .domainManagedSaveRemove = libxlDomainManagedSaveRemove, /* 0.9.2 */ -- 1.8.1.4

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[libvirt] [PATCH 05/12] conf: add 'script' attribute to disk specification
by Marek Marczykowski 10 Apr '13

10 Apr '13

Script to be called to prepare custom device for domain. Done with Xen in mind, it maps to libxl_device_disk.script. XML configuration would be: <disk type='block' device='disk'> <source dev='/dev/mapper/custom-device'/> <script path='/script/to/setup/custom-device'/> <target dev='xvdc'/> </disk> --- src/conf/domain_conf.c | 10 ++++++++++ src/conf/domain_conf.h | 1 + 2 files changed, 11 insertions(+) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index f3fca7f..257a265 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1102,6 +1102,7 @@ void virDomainDiskDefFree(virDomainDiskDefPtr def) VIR_FREE(def->wwn); VIR_FREE(def->vendor); VIR_FREE(def->product); + VIR_FREE(def->script); if (def->auth.secretType == VIR_DOMAIN_DISK_SECRET_TYPE_USAGE) VIR_FREE(def->auth.secret.usage); virStorageEncryptionFree(def->encryption); @@ -3993,6 +3994,7 @@ virDomainDiskDefParseXML(virCapsPtr caps, char *wwn = NULL; char *vendor = NULL; char *product = NULL; + char *script = NULL; int expected_secret_usage = -1; int auth_secret_usage = -1; @@ -4148,6 +4150,9 @@ virDomainDiskDefParseXML(virCapsPtr caps, if (target && STRPREFIX(target, "ioemu:")) memmove(target, target+6, strlen(target)-5); + } else if (!script && + xmlStrEqual(cur->name, BAD_CAST "script")) { + script = virXMLPropString(cur, "path"); } else if (xmlStrEqual(cur->name, BAD_CAST "geometry")) { if (virXPathUInt("string(./geometry/@cyls)", ctxt, &def->geometry.cylinders) < 0) { @@ -4690,6 +4695,8 @@ virDomainDiskDefParseXML(virCapsPtr caps, source = NULL; def->dst = target; target = NULL; + def->script = script; + script = NULL; def->hosts = hosts; hosts = NULL; def->nhosts = nhosts; @@ -4788,6 +4795,7 @@ cleanup: VIR_FREE(wwn); VIR_FREE(vendor); VIR_FREE(product); + VIR_FREE(script); ctxt->node = save_ctxt; return def; @@ -12899,6 +12907,8 @@ virDomainDiskDefFormat(virBufferPtr buf, } } + virBufferEscapeString(buf, " <script path='%s'/>\n", def->script); + virDomainDiskGeometryDefFormat(buf, def); virDomainDiskBlockIoDefFormat(buf, def); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index edddf25..d55d209 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -668,6 +668,7 @@ struct _virDomainDiskDef { bool rawio_specified; int rawio; /* no = 0, yes = 1 */ int sgio; /* enum virDomainDiskSGIO */ + char *script; size_t nseclabels; virSecurityDeviceLabelDefPtr *seclabels; -- 1.8.1.4

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[libvirt] [PATCH 02/12] libxl: PCI passthrough support
by Marek Marczykowski 10 Apr '13

10 Apr '13

--- src/libxl/libxl_conf.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/libxl/libxl_conf.h | 2 ++ 2 files changed, 74 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index ffc7bbb..7668305 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -759,6 +759,74 @@ error: return -1; } +int +libxlMakePci(virDomainHostdevDefPtr l_hostdev, + libxl_device_pci *x_pci) +{ + if (l_hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("This driver supports only subsystem host device mode (PCI devices only)")); + return -1; + } + if (l_hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("This driver supports only PCI host devices")); + return -1; + } + + x_pci->bus = l_hostdev->source.subsys.u.pci.bus; + x_pci->dev = l_hostdev->source.subsys.u.pci.slot; + x_pci->func = l_hostdev->source.subsys.u.pci.function; + return 0; +} + +static int +libxlMakePciList(virDomainDefPtr def, + libxl_domain_config *d_config) +{ + virDomainHostdevDefPtr *l_hostdevs = def->hostdevs; + int nhostdevs = def->nhostdevs; + int npcidevs = 0; + libxl_device_pci *x_pcidevs; + int i, j; + + if (nhostdevs == 0) + return 0; + + /* count PCI devices, ignore others (USB) */ + for (i = 0; i < nhostdevs; i++) { + if (l_hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && + l_hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) + npcidevs++; + } + if (VIR_ALLOC_N(x_pcidevs, npcidevs) < 0) { + virReportOOMError(); + return -1; + } + + for (i = 0, j = 0; i < nhostdevs; i++) { + if (l_hostdevs[i]->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS || + l_hostdevs[i]->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) + continue; + + libxl_device_pci_init(&x_pcidevs[j]); + + if (libxlMakePci(l_hostdevs[i], &x_pcidevs[j]) < 0) + goto error; + j++; + } + + d_config->pcidevs = x_pcidevs; + d_config->num_pcidevs = npcidevs; + + return 0; + +error: + for (i = 0; i < npcidevs; i++) { + libxl_device_pci_dispose(&x_pcidevs[i]); + } + VIR_FREE(x_pcidevs); + return -1; +} + virCapsPtr libxlMakeCapabilities(libxl_ctx *ctx) { @@ -817,6 +885,10 @@ libxlBuildDomainConfig(libxlDriverPrivatePtr driver, goto error; } + if (libxlMakePciList(def, d_config) < 0) { + goto error; + } + d_config->on_reboot = def->onReboot; d_config->on_poweroff = def->onPoweroff; d_config->on_crash = def->onCrash; diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index f8602b4..b3ab3bf 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -119,6 +119,8 @@ libxlMakeNic(virDomainNetDefPtr l_nic, libxl_device_nic *x_nic); int libxlMakeVfb(libxlDriverPrivatePtr driver, virDomainGraphicsDefPtr l_vfb, libxl_device_vfb *x_vfb); +int +libxlMakePci(virDomainHostdevDefPtr l_hostdev, libxl_device_pci *x_pci); int libxlBuildDomainConfig(libxlDriverPrivatePtr driver, -- 1.8.1.4

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[libvirt] [PATCH 01/12] libxl: allow script for any network interface, not only bridge
by Marek Marczykowski 10 Apr '13

10 Apr '13

This can be useful for route or NAT networks, or any other custom network setup. Especially configuration example in documentation uses <script/> tag with type 'ethernet'. --- src/libxl/libxl_conf.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index b208dd8..ffc7bbb 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -608,18 +608,11 @@ libxlMakeNic(virDomainNetDefPtr l_nic, libxl_device_nic *x_nic) virReportOOMError(); return -1; } - if (l_nic->script && - (x_nic->script = strdup(l_nic->script)) == NULL) { - virReportOOMError(); - return -1; - } - } else { - if (l_nic->script) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("scripts are not supported on interfaces of type %s"), - virDomainNetTypeToString(l_nic->type)); - return -1; - } + } + if (l_nic->script && + (x_nic->script = strdup(l_nic->script)) == NULL) { + virReportOOMError(); + return -1; } return 0; -- 1.8.1.4

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[libvirt] [PATCH 06/12] libxl: use disk 'script' attribute
by Marek Marczykowski 10 Apr '13

10 Apr '13

Implement handling of previously introduced <script/> element for disk config. This can be used for custom backend configuration like non-standard device-mapper nodes, or to prepare device in other domain (see the next patch). --- src/libxl/libxl_conf.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 7668305..4bd62e9 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -484,6 +484,11 @@ libxlMakeDisk(virDomainDiskDefPtr l_disk, libxl_device_disk *x_disk) return -1; } + if (l_disk->script && (x_disk->script = strdup(l_disk->script)) == NULL) { + virReportOOMError(); + return -1; + } + if (l_disk->driverName) { if (STREQ(l_disk->driverName, "tap") || STREQ(l_disk->driverName, "tap2")) { -- 1.8.1.4

1 0

[libvirt] [PATCH 10/12] RFC: libxl: special 'stubdom-dm' emulator to use qemu in stub domain
by Marek Marczykowski 10 Apr '13

10 Apr '13

Xen have feature of having device model in separate domain (called stub domain). It used to be enabled by special 'stubdom-dm' device model path. Recent xl have separate config option for this feature (device_model_stubdomain_override), but I'm not sure if it worth introducing another xen-specific option in general domain XML syntax. Also use os->cmdline as extra arguments for qemu (for HVM only). This use of os->cmdline is rather dirty hack, but I haven't idea what better attribute use for it. Perhaps worth new attribute (in <emulator/> element?). Anyway os->cmdline was unused for HVM domains. --- src/libxl/libxl_conf.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 068a97a..181d344 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -478,6 +478,18 @@ libxlMakeDomBuildInfo(libxlDriverPrivatePtr driver, goto error; } + if (def->emulator && strcmp(def->emulator, "stubdom-dm")==0) { + libxl_defbool_set(&b_info->device_model_stubdomain, 1); + } + + if (def->os.cmdline && def->os.cmdline[0]) { + b_info->extra_hvm = virStringSplit(def->os.cmdline, " ", 0); + if (b_info->extra_hvm == NULL) { + virReportOOMError(); + goto error; + } + } + /* Disable VNC and SDL until explicitly enabled */ libxl_defbool_set(&b_info->u.hvm.vnc.enable, 0); libxl_defbool_set(&b_info->u.hvm.sdl.enable, 0); -- 1.8.1.4

1 0

[libvirt] [PATCH 09/12] libxl: fill HVM SDL and VNC settings based on <graphics/> entries
by Marek Marczykowski 10 Apr '13

10 Apr '13

Vfb entries in domain config are used only by PV drivers. Qemu parameters are build based on b_info struct. So fill it with the same data as vfb entries (actually the first one). This will additionally allow graphic-less domain, when no <graphics/> entries are present in domain XML (previously VNC was always enabled). --- src/libxl/libxl_conf.c | 131 +++++++++++++++++++++++++++++++++---------------- 1 file changed, 90 insertions(+), 41 deletions(-) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index 477e46d..068a97a 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -347,7 +347,64 @@ error: } static int -libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_config *d_config) +libxlMakeVNCInfo(libxlDriverPrivatePtr driver, + virDomainGraphicsDefPtr l_vfb, + libxl_vnc_info *x_vnc) +{ + unsigned short port; + const char *listenAddr; + + libxl_defbool_set(&x_vnc->enable, 1); + /* driver handles selection of free port */ + libxl_defbool_set(&x_vnc->findunused, 0); + if (l_vfb->data.vnc.autoport) { + + if (virPortAllocatorAcquire(driver->reservedVNCPorts, &port) < 0) + return -1; + if (port == 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + "%s", _("Unable to find an unused VNC port")); + return -1; + } + l_vfb->data.vnc.port = port; + } + x_vnc->display = l_vfb->data.vnc.port - LIBXL_VNC_PORT_MIN; + + listenAddr = virDomainGraphicsListenGetAddress(l_vfb, 0); + if (listenAddr) { + /* libxl_device_vfb_init() does strdup("127.0.0.1") */ + VIR_FREE(x_vnc->listen); + if ((x_vnc->listen = strdup(listenAddr)) == NULL) { + virReportOOMError(); + return -1; + } + } + return 0; +} + +static int +libxlMakeSDLInfo(virDomainGraphicsDefPtr l_vfb, + libxl_sdl_info *x_sdl) +{ + libxl_defbool_set(&x_sdl->enable, 1); + if (l_vfb->data.sdl.display && + (x_sdl->display = strdup(l_vfb->data.sdl.display)) == NULL) { + virReportOOMError(); + return -1; + } + if (l_vfb->data.sdl.xauth && + (x_sdl->xauthority = + strdup(l_vfb->data.sdl.xauth)) == NULL) { + virReportOOMError(); + return -1; + } + return 0; +} + +static int +libxlMakeDomBuildInfo(libxlDriverPrivatePtr driver, + virDomainDefPtr def, + libxl_domain_config *d_config) { libxl_domain_build_info *b_info = &d_config->b_info; int hvm = STREQ(def->os.type, "hvm"); @@ -421,6 +478,34 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_config *d_config) goto error; } + /* Disable VNC and SDL until explicitly enabled */ + libxl_defbool_set(&b_info->u.hvm.vnc.enable, 0); + libxl_defbool_set(&b_info->u.hvm.sdl.enable, 0); + + for (i = 0; i < def->ngraphics; i++) { + switch (def->graphics[i]->type) { + case VIR_DOMAIN_GRAPHICS_TYPE_VNC: + if (libxl_defbool_val(b_info->u.hvm.vnc.enable)) + continue; + if (libxlMakeVNCInfo(driver, def->graphics[i], + &b_info->u.hvm.vnc) < 0) + goto error; + if (def->graphics[i]->data.vnc.keymap && + (b_info->u.hvm.keymap = + strdup(def->graphics[i]->data.vnc.keymap)) == NULL) { + virReportOOMError(); + goto error; + } + break; + case VIR_DOMAIN_GRAPHICS_TYPE_SDL: + if (libxl_defbool_val(b_info->u.hvm.sdl.enable)) + continue; + if (libxlMakeSDLInfo(def->graphics[i], &b_info->u.hvm.sdl) < 0) + goto error; + break; + } + } + /* * The following comment and calculation were taken directly from * libxenlight's internal function libxl_get_required_shadow_memory(): @@ -706,50 +791,14 @@ libxlMakeVfb(libxlDriverPrivatePtr driver, virDomainGraphicsDefPtr l_vfb, libxl_device_vfb *x_vfb) { - unsigned short port; - const char *listenAddr; - switch (l_vfb->type) { case VIR_DOMAIN_GRAPHICS_TYPE_SDL: - libxl_defbool_set(&x_vfb->sdl.enable, 1); - if (l_vfb->data.sdl.display && - (x_vfb->sdl.display = strdup(l_vfb->data.sdl.display)) == NULL) { - virReportOOMError(); - return -1; - } - if (l_vfb->data.sdl.xauth && - (x_vfb->sdl.xauthority = - strdup(l_vfb->data.sdl.xauth)) == NULL) { - virReportOOMError(); + if (libxlMakeSDLInfo(l_vfb, &x_vfb->sdl) < 0) return -1; - } break; case VIR_DOMAIN_GRAPHICS_TYPE_VNC: - libxl_defbool_set(&x_vfb->vnc.enable, 1); - /* driver handles selection of free port */ - libxl_defbool_set(&x_vfb->vnc.findunused, 0); - if (l_vfb->data.vnc.autoport) { - - if (virPortAllocatorAcquire(driver->reservedVNCPorts, &port) < 0) - return -1; - if (port == 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - "%s", _("Unable to find an unused VNC port")); - return -1; - } - l_vfb->data.vnc.port = port; - } - x_vfb->vnc.display = l_vfb->data.vnc.port - LIBXL_VNC_PORT_MIN; - - listenAddr = virDomainGraphicsListenGetAddress(l_vfb, 0); - if (listenAddr) { - /* libxl_device_vfb_init() does strdup("127.0.0.1") */ - VIR_FREE(x_vfb->vnc.listen); - if ((x_vfb->vnc.listen = strdup(listenAddr)) == NULL) { - virReportOOMError(); - return -1; - } - } + if (libxlMakeVNCInfo(driver, l_vfb, &x_vfb->vnc) < 0) + return -1; if (l_vfb->data.vnc.keymap && (x_vfb->keymap = strdup(l_vfb->data.vnc.keymap)) == NULL) { @@ -920,7 +969,7 @@ libxlBuildDomainConfig(libxlDriverPrivatePtr driver, if (libxlMakeDomCreateInfo(driver, def, &d_config->c_info) < 0) return -1; - if (libxlMakeDomBuildInfo(def, d_config) < 0) { + if (libxlMakeDomBuildInfo(driver, def, d_config) < 0) { goto error; } -- 1.8.1.4

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[libvirt] [PATCH 07/12] conf: support backend domain name in disk and network devices
by Marek Marczykowski 10 Apr '13

10 Apr '13

At least Xen supports backend drivers in another domain (aka "driver domain"). This patch introduces XML config option for such setting as 'domain' element with 'name' attribute. Verification its content is left for the driver. In the future some option will be needed for USB devices (hostdev objects), but for now libxl doesn't have support for PVUSB. --- docs/schemas/domaincommon.rng | 14 ++++++++++++++ src/conf/domain_conf.c | 27 +++++++++++++++++++++++++++ src/conf/domain_conf.h | 2 ++ 3 files changed, 43 insertions(+) diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 8d7e6db..1423187 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -869,6 +869,13 @@ </optional> <ref name="target"/> <optional> + <element name="domain"> + <attribute name="name"> + <ref name="domainName"/> + </attribute> + </element> + </optional> + <optional> <ref name="deviceBoot"/> </optional> <optional> @@ -1834,6 +1841,13 @@ </element> </optional> <optional> + <element name="domain"> + <attribute name="name"> + <ref name="domainName"/> + </attribute> + </element> + </optional> + <optional> <element name="model"> <attribute name="type"> <data type="string"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 257a265..bf1fec6 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1103,6 +1103,7 @@ void virDomainDiskDefFree(virDomainDiskDefPtr def) VIR_FREE(def->vendor); VIR_FREE(def->product); VIR_FREE(def->script); + VIR_FREE(def->domain_name); if (def->auth.secretType == VIR_DOMAIN_DISK_SECRET_TYPE_USAGE) VIR_FREE(def->auth.secret.usage); virStorageEncryptionFree(def->encryption); @@ -1228,6 +1229,7 @@ void virDomainNetDefFree(virDomainNetDefPtr def) VIR_FREE(def->virtPortProfile); VIR_FREE(def->script); + VIR_FREE(def->domain_name); VIR_FREE(def->ifname); virDomainDeviceInfoClear(&def->info); @@ -3995,6 +3997,7 @@ virDomainDiskDefParseXML(virCapsPtr caps, char *vendor = NULL; char *product = NULL; char *script = NULL; + char *domain_name = NULL; int expected_secret_usage = -1; int auth_secret_usage = -1; @@ -4153,6 +4156,9 @@ virDomainDiskDefParseXML(virCapsPtr caps, } else if (!script && xmlStrEqual(cur->name, BAD_CAST "script")) { script = virXMLPropString(cur, "path"); + } else if (!domain_name && + xmlStrEqual(cur->name, BAD_CAST "domain")) { + domain_name = virXMLPropString(cur, "name"); } else if (xmlStrEqual(cur->name, BAD_CAST "geometry")) { if (virXPathUInt("string(./geometry/@cyls)", ctxt, &def->geometry.cylinders) < 0) { @@ -4447,6 +4453,11 @@ virDomainDiskDefParseXML(virCapsPtr caps, ctxt->node = saved_node; } + if (domain_name != NULL) { + def->domain_name = domain_name; + domain_name = NULL; + } + if (target == NULL) { virReportError(VIR_ERR_NO_TARGET, source ? "%s" : NULL, source); @@ -4796,6 +4807,7 @@ cleanup: VIR_FREE(vendor); VIR_FREE(product); VIR_FREE(script); + VIR_FREE(domain_name); ctxt->node = save_ctxt; return def; @@ -5353,6 +5365,7 @@ virDomainNetDefParseXML(virCapsPtr caps, char *mode = NULL; char *linkstate = NULL; char *addrtype = NULL; + char *domain_name = NULL; virNWFilterHashTablePtr filterparams = NULL; virDomainActualNetDefPtr actual = NULL; xmlNodePtr oldnode = ctxt->node; @@ -5451,6 +5464,9 @@ virDomainNetDefParseXML(virCapsPtr caps, } else if (!script && xmlStrEqual(cur->name, BAD_CAST "script")) { script = virXMLPropString(cur, "path"); + } else if (!domain_name && + xmlStrEqual(cur->name, BAD_CAST "domain")) { + domain_name = virXMLPropString(cur, "name"); } else if (xmlStrEqual(cur->name, BAD_CAST "model")) { model = virXMLPropString(cur, "type"); } else if (xmlStrEqual(cur->name, BAD_CAST "driver")) { @@ -5682,6 +5698,10 @@ virDomainNetDefParseXML(virCapsPtr caps, def->script = script; script = NULL; } + if (domain_name != NULL) { + def->domain_name = domain_name; + domain_name = NULL; + } if (ifname != NULL) { def->ifname = ifname; ifname = NULL; @@ -5808,6 +5828,7 @@ cleanup: VIR_FREE(mode); VIR_FREE(linkstate); VIR_FREE(addrtype); + VIR_FREE(domain_name); virNWFilterHashTableFree(filterparams); return def; @@ -12909,6 +12930,10 @@ virDomainDiskDefFormat(virBufferPtr buf, virBufferEscapeString(buf, " <script path='%s'/>\n", def->script); + if (def->domain_name) { + virBufferEscapeString(buf, " <domain name='%s'/>\n", def->domain_name); + } + virDomainDiskGeometryDefFormat(buf, def); virDomainDiskBlockIoDefFormat(buf, def); @@ -13456,6 +13481,8 @@ virDomainNetDefFormat(virBufferPtr buf, return -1; virBufferEscapeString(buf, "<script path='%s'/>\n", def->script); + if (def->domain_name) + virBufferEscapeString(buf, "<domain name='%s'/>\n", def->domain_name); if (def->ifname && !((flags & VIR_DOMAIN_XML_INACTIVE) && (STRPREFIX(def->ifname, VIR_NET_GENERATED_PREFIX)))) { diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index d55d209..db3002b 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -669,6 +669,7 @@ struct _virDomainDiskDef { int rawio; /* no = 0, yes = 1 */ int sgio; /* enum virDomainDiskSGIO */ char *script; + char *domain_name; /* backend domain name */ size_t nseclabels; virSecurityDeviceLabelDefPtr *seclabels; @@ -919,6 +920,7 @@ struct _virDomainNetDef { unsigned long sndbuf; } tune; char *script; + char *domain_name; /* backend domain name */ char *ifname; virDomainDeviceInfo info; char *filter; -- 1.8.1.4

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[libvirt] [PATCH] docs: fix typo when using Kerberos principals
by Eric Blake 10 Apr '13

10 Apr '13

Kerberos uses 'primary' or 'key' files (principals), not 'abstract ideal' (principles). Reported by Jason Meinzer. Reflow a paragraph to fit in 80 columns in the process. * docs/auth.html.in: Fix spelling. --- Pushing under the trivial rule. docs/auth.html.in | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) diff --git a/docs/auth.html.in b/docs/auth.html.in index 929afd0..1bd02f2 100644 --- a/docs/auth.html.in +++ b/docs/auth.html.in @@ -253,13 +253,15 @@ Plugin "gssapiv2" [loaded], API version: 4 features: WANT_CLIENT_FIRST|PROXY_AUTHENTICATION|NEED_SERVER_FQDN </pre> <p> -Next it is necessary for the administrator of the Kerberos realm to issue a principle -for the libvirt server. There needs to be one principle per host running the libvirt -daemon. The principle should be named <code>libvirt/full.hostname(a)KERBEROS.REALM</code>. -This is typically done by running the <code>kadmin.local</code> command on the Kerberos -server, though some Kerberos servers have alternate ways of setting up service principles. -Once created, the principle should be exported to a keytab, copied to the host running -the libvirt daemon and placed in <code>/etc/libvirt/krb5.tab</code> +Next it is necessary for the administrator of the Kerberos realm to +issue a principal for the libvirt server. There needs to be one +principal per host running the libvirt daemon. The principal should be +named <code>libvirt/full.hostname(a)KERBEROS.REALM</code>. This is +typically done by running the <code>kadmin.local</code> command on the +Kerberos server, though some Kerberos servers have alternate ways of +setting up service principals. Once created, the principal should be +exported to a keytab, copied to the host running the libvirt daemon +and placed in <code>/etc/libvirt/krb5.tab</code> </p> <pre> # kadmin.local @@ -281,7 +283,7 @@ kadmin.local: quit </pre> <p> Any client application wishing to connect to a Kerberos enabled libvirt server -merely needs to run <code>kinit</code> to gain a user principle. This may well +merely needs to run <code>kinit</code> to gain a user principal. This may well be done automatically when a user logs into a desktop session, if PAM is setup to authenticate against Kerberos. </p> -- 1.8.1.4

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