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* libxl,xl: add max_event_channels option to xl configuration fileDavid Vrabel2013-10-141-0/+1
| | | | | | | | | | | | | | | | | | | Add the 'max_event_channels' option to the xl configuration file to limit the number of event channels that domain may use. Plumb this option through to libxl via a new libxl_build_info field and call xc_domain_set_max_evtchn() in the post build stage of domain creation. A new LIBXL_HAVE_BUILDINFO_EVENT_CHANNELS #define indicates that this new field is available. The default value of 1023 limits the domain to using the minimum amount of global mapping pages and at most 5 xenheap pages. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* tools/migrate: Fix regression when migrating from older version of XenAndrew Cooper2013-10-101-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | Commit 00a4b65f8534c9e6521eab2e6ce796ae36037774 Sep 7 2010 "libxc: provide notification of final checkpoint to restore end" broke migration from any version of Xen using tools from prior to that commit Older tools have no idea about an XC_SAVE_ID_LAST_CHECKPOINT, causing newer tools xc_domain_restore() to start reading the qemu save record, as ctx->last_checkpoint is 0. The failure looks like: xc: error: Max batch size exceeded (1970103633). Giving up. where 1970103633 = 0x756d6551 = *(uint32_t*)"Qemu" With this fix in place, the behaviour for normal migrations is reverted to how it was before the regression; the migration is considered non-checkpointed right from the start. A XC_SAVE_ID_LAST_CHECKPOINT chunk seen in the migration stream is a nop. For checkpointed migrations the behaviour is unchanged. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> Acked-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> (Remus bits)
* libxl: Spice vdagent support for upstream qemuFabio Fantoni2013-09-131-0/+2
| | | | | | | | | | | | | | | | | | Usage: - spicevdagent=1|0 (default=0) Enables spice vdagent. The Spice vdagent is an optional component for enhancing user experience and performing guest-oriented management tasks. Its features includes: client mouse mode (no need to grab mouse by client, no mouse lag), automatic adjustment of screen resolution, copy and paste (text and image) between client and domU. It also requires vdagent service installed on domU o.s. to work. - spice_clipboard_sharing=1|0 (default=0) Enables Spice clipboard sharing (copy/paste). It requires spicevdagent enabled. Signed-off-by: Fabio Fantoni <fabio.fantoni@m2r.biz> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: idl: complete some enums in the IDL with their defaultsRob Hoes2013-09-101-3/+8
| | | | | | | | | | | | There are several enums in the IDL that are initialised to 0, while the value 0 is not part of the enum itself. This creates problems for language bindings generated from the IDL, such as the OCaml ones. Added an explicit (0, "UNKNOWN") enum value where appropriate, or used init_val to default to a sensible value. Signed-off-by: Rob Hoes <rob.hoes@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: idl: add domain_type field to libxl_dominfo structRob Hoes2013-09-101-0/+1
| | | | | | | This allows a toolstack to find out whether a VM has booted as PV or HVM. Signed-off-by: Rob Hoes <rob.hoes@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: Add LIBXL_SHUTDOWN_REASON_UNKNOWNRob Hoes2013-09-101-2/+3
| | | | | | | | | | libxl_dominfo.shutdown_reason is valid iff (shutdown||dying). This is a bit annoying when generating language bindings since it needs all sorts of special casing. Just introduce an explicit value instead. Signed-off-by: Ian Campbell <ian.cambell@citrix.com> Signed-off-by: Rob Hoes <rob.hoes@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* Add vendor_device parameter for HVM guestsPaul Durrant2013-08-051-0/+5
| | | | | | | | | | | | The parameter determines which, if any, xen-pvdevice is specified on the QEMU command line. The default value is 'none' which means no argument will be passed. A value of 'xenserver' specifies a xen-pvdevice with device-id 0xc000 (the initial value in the xenserver namespace - see docs/misc/pci-device-reservations.txt). Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> [ ijc -- s/BUILD_INFO/BUILDINFO for consistency in LIBXL_HAVE define ]
* libxl: Remove qxl support for the 4.3 releaseGeorge Dunlap2013-05-301-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | The qxl drivers for Windows and Linux end up calling instructions that cannot be used for MMIO at the moment. Just for the 4.3 release, remove qxl support. This patch should be reverted as soon as the 4.4 development window opens. The issue in question: (XEN) emulate.c:88:d18 bad mmio size 16 (XEN) io.c:201:d18 MMIO emulation failed @ 0033:7fd2de390430: f3 0f 6f 19 41 83 e8 403 The instruction in question is "movdqu (%rcx),%xmm3". Xen knows how to emulate it, but unfortunately %xmm3 is 16 bytes long, and the interface between Xen and qemu at the moment would appear to only allow MMIO accesses of 8 bytes. It's too late in the release cycle to find a fix or a workaround. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* hypervisor/xen/tools: Remove the XENMEM_get_oustanding_pages and provide the ↵Konrad Rzeszutek Wilk2013-05-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | data via xc_phys_info During the review of the patches it was noticed that there exists a race wherein the 'free_memory' value consists of information from two hypercalls. That is the XEN_SYSCTL_physinfo and XENMEM_get_outstanding_pages. The free memory the host has available for guest is the difference between the 'free_pages' (from XEN_SYSCTL_physinfo) and 'outstanding_pages'. As they are two hypercalls many things can happen in between the execution of them. This patch resolves this by eliminating the XENMEM_get_outstanding_pages hypercall and providing the free_pages and outstanding_pages information via the xc_phys_info structure. It also removes the XSM hooks and adds locking as needed. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Reviewed-by: Tim Deegan <tim@xen.org> Acked-by: Keir Fraser <keir.xen@gmail.com>
* libxl: postpone backend name resolutionDaniel De Graaf2013-04-171-0/+5
| | | | | | | | | | | | | | | | | | | | This adds a backend_domname field in libxl devices that contain a backend_domid field, allowing either a domid or a domain name to be specified in the configuration structures. The domain name is resolved into a domain ID in the _setdefault function when adding the device. This change allows the backend of the block devices to be specified (which previously required passing the libxl_ctx down into the block device parser), and will simplify specification of backend domains in other users of libxl. The check on run_hotplug_scripts in parse_config_data is removed because it is a duplicate of the one in libxl__device_nic_setdefault, and is removed here because it no longer has the resolved domain ID to check. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> [ ijc -- reran flex ]
* libxl: allow for explicitly specifying node-affinityDario Faggioli2013-04-171-0/+1
| | | | | | | | | | By introducing a nodemap in libxl_domain_build_info and providing the get/set methods to deal with it. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Acked-by: Juergen Gross <juergen.gross@ts.fujitsu.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xl: export 'outstanding_pages' value from xcinfoKonrad Rzeszutek Wilk2013-04-161-0/+1
| | | | | | | | | | | | | | | | | | This patch provides the value of the currently outstanding pages claimed for a specific domain. This is a value that influences the global outstanding claims value (See patch: "xl: 'xl info' print outstanding claims if enabled") returned via xc_domain_get_outstanding_pages hypercall. This domain value decrements as the memory is populated for the guest and eventually reaches zero. With this patch it is possible to utilize this field. Acked-by: Ian Campbell <ian.campbell@citrix.com> [v2: s/unclaimed/outstanding/ per Tim's suggestion] [v3: Don't use SXP printout file per Ian's suggestion] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* xl: Implement XENMEM_claim_pages support via 'claim_mode' global configKonrad Rzeszutek Wilk2013-04-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The XENMEM_claim_pages hypercall operates per domain and it should be used system wide. As such this patch introduces a global configuration option 'claim_mode' that by default is disabled. If this option is enabled then when a guest is created there will be an guarantee that there is memory available for the guest. This is an particularly acute problem on hosts with memory over-provisioned guests that use tmem and have self-balloon enabled (which is the default option for them). The self-balloon mechanism can deflate/inflate the balloon quickly and the amount of free memory (which 'xl info' can show) is stale the moment it is printed. When claim is enabled a reservation for the amount of memory ('memory' in guest config) is set, which is then reduced as the domain's memory is populated and eventually reaches zero. If the reservation cannot be meet the guest creation fails immediately instead of taking seconds/minutes (depending on the size of the guest) while the guest is populated. Note that to enable tmem type guests, one needs to provide 'tmem' on the Xen hypervisor argument and as well on the Linux kernel command line. There are two boolean options: (0) No claim is made. Memory population during guest creation will be attempted as normal and may fail due to memory exhaustion. (1) Normal memory and freeable pool of ephemeral pages (tmem) is used when calculating whether there is enough memory free to launch a guest. This guarantees immediate feedback whether the guest can be launched due to memory exhaustion (which can take a long time to find out if launching massively huge guests) and in parallel. [v1: Removed own claim_mode type, using just bool, improved docs, all per Ian's suggestion] [v2: Updated the comments] [v3: Rebase on top 733b9c524dbc2bec318bfc3588ed1652455d30ec (xl: add vif.default.script)] [v4: Fixed up comments] [v5: s/global_claim_mode/claim_mode/] [v6: Ian Jackson's feedback: use libxl_defbool, better comments, etc] Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: Allow multiple USB devices on HVM domain creationGeorge Dunlap2013-04-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows an HVM domain to be created with multiple USB devices. Since the previous interface only allowed the passing of a single device, this requires us to add a new element to the hvm struct of libxl_domain_build_info -- usbdevice_list. For API compatibility, the old element, usbdevice, remains. If hvm.usbdevice_list is set, each device listed will cause an extra "-usbdevice [foo]" to be appended to the qemu command line. Callers may set either hvm.usbdevice or hvm.usbdevice_list, but not both; libxl will throw an error if both are set. In order to allow users of libxl to write software compatible with older versions of libxl, also define LIBXL_HAVE_BUILDINFO_USBDEVICE_LIST. If this is defined, callers may use either hvm.usbdevice or hvm.usbdevice_list; otherwise, only hvm.usbdevice will be available. as applied: - Fix whitespace errors -iwj v3: - Duplicate functionality in both "new" and "old", since we're not unifying the two anymore. v2: - Throw an error if both usbdevice and usbdevice_list are set - Update and clarify definition based on feedback - Previous patches means this works for both traditional and upstream Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
* xl/libxl: add gatewaydev/netdev to vif specificationRoger Pau Monne2013-03-151-0/+1
| | | | | | | | | | | | | | | | | | This option is used by the vif-route hotplug script. A new more descriptive name is used, "gatewaydev", but "netdev" is also supported as a deprecated backwards compatible option. This option was supported in the past, according to http://wiki.xen.org/wiki/Vif-route, so we should also support it in libxl. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Tested-by: Ulf Kreutzberg <ulf.kreutzberg@hosteurope.de> Cc: Ulf Kreutzberg <ulf.kreutzberg@hosteurope.de> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: George Dunlap <george.dunlap@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: Add qxl vga interface support for upstream qemuFabio Fantoni2013-02-201-0/+1
| | | | | | | | | | | Usage: vga="qxl" Signed-off-by: Fabio Fantoni <fabio.fantoni@heliman.it> Signed-off-by: Zhou Peng <zpengxen@gmail.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: HVM firmware passthrough supportRoss Philipson2013-02-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | This patch introduces support for two new parameters in libxl: smbios_firmware=<path_to_smbios_structures_file> acpi_firmware=<path_to_acpi_tables_file> The changes are primarily in the domain building code where the firmware files are read and passed to libxc for loading into the new guest. After the domain building call to libxc, the addresses for the loaded blobs are returned and written to xenstore. LIBXL_HAVE_FIRMWARE_PASSTHROUGH is defined in libxl.h to allow users to determine if the feature is present. This patch also updates the xl.cfg man page with descriptions of the two new parameters for firmware passthrough. Signed-off-by: Ross Philipson <ross.philipson@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: move definition of libxl_domain_config into the IDLIan Campbell2012-12-191-0/+17
| | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: introduce XSM relabel on buildDaniel De Graaf2012-12-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | Allow a domain to be built under one security label and run using a different label. This can be used to prevent the domain builder or control domain from having the ability to access a guest domain's memory via map_foreign_range except during the build process where this is required. Example domain configuration snippet: seclabel='customer_1:vm_r:nomigrate_t' init_seclabel='customer_1:vm_r:nomigrate_t_building' Note: this does not provide complete protection from a malicious dom0; mappings created during the build process may persist after the relabel, and could be used to indirectly access the guest's memory. However, if dom0 correctly unmaps the domain upon building, a the domU is protected against dom0 becoming malicious in the future. Signed-off-by: Daniel De Graaf <dgdegra@tycho.nsa.gov> acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: add vtpm supportMatthew Fioravante2012-11-131-0/+18
| | | | | | | | | | | | This patch adds vtpm support to libxl. It adds vtpm parsing to config files and 3 new xl commands: vtpm-attach vtpm-detach vtpm-list Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* xl/libxl: add iomem supportMatthew Fioravante2012-10-051-0/+6
| | | | | | | | | | This patch adds a new option for xen config files for directly mapping hardware io memory into a vm. Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: make devid a type so it is initialized properlyMatthew Fioravante2012-10-051-5/+6
| | | | | | | | | | | | | | | | Previously device ids in libxl were treated as integers meaning they were being initialized to 0, which is a valid device id. This patch makes devid its own type in libxl and initializes it to -1, an invalid value. This fixes a bug where if you try to do a xl DEV-attach multiple time it will continuously try to reattach device 0 instead of generating a new device id. Signed-off-by: Matthew Fioravante <matthew.fioravante@jhuapl.edu> Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl/xl: implement support for guest ioport and irq permissions.Ian Campbell2012-09-031-0/+8
| | | | | | | | | | | | | | | | | | | | This is useful for passing legacy ISA devices (e.g. com ports, parallel ports) to guests. Supported syntax is as described in http://cmrg.fifthhorseman.net/wiki/xen#grantingaccesstoserialhardwaretoadomU I tested this using Xen's 'q' key handler which prints out the I/O port and IRQ ranges allowed for each domain. e.g.: (XEN) Rangesets belonging to domain 31: (XEN) I/O Ports { 2e8-2ef, 2f8-2ff } (XEN) Interrupts { 3, 5-6 } Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Tested-by: Dieter Bloms <dieter@bloms.de> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* hvm: Remove VM genearation ID device and incr_generationid from build_info.Paul Durrant2012-08-221-1/+0
| | | | | | | | | | | | | | | | Microsoft have now published their VM generation ID specification at https://www.microsoft.com/en-us/download/details.aspx?id=30707. It differs from the original specification upon which I based my implementation in several key areas. Particularly, it is no longer an incrementing 64-bit counter and so this patch is to remove the incr_generationid field from the build_info and also disable the ACPI device before 4.2 is released. I will follow up with further patches to implement the VM generation ID to the new specification. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Committed-by: Keir Fraser <keir@xen.org>
* libxl: add option to choose who executes hotplug scriptsRoger Pau Monne2012-07-261-0/+1
| | | | | | | | | | | | | | | | | Add and option to xl.conf file to decide if hotplug scripts are executed from the toolstack (xl) or from udev as it used to be in the past. This option is only introduced in this patch, but it has no effect since the code to call hotplug scripts from libxl is introduced in a latter patch. This choice will be saved in "libxl/disable_udev", as specified in the DISABLE_UDEV_PATH constant. Signed-off-by: Roger Pau Monne <roger.pau@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: enable automatic placement of guests on NUMA nodesDario Faggioli2012-07-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | If a domain does not have a VCPU affinity, try to pin it automatically to some PCPUs. This is done taking into account the NUMA characteristics of the host. In fact, we look for a combination of host's NUMA nodes with enough free memory and number of PCPUs for the new domain, and pin it to the VCPUs of those nodes. Deciding which placement is the best happens by means of some heuristics. For instance, smaller candidates are better, both from a domain perspective (less memory spreading among nodes) and from the entire system perspective (smaller memory fragmentation). In case of candidates of equal sizes (i.e., with the same number of nodes), the amount of free memory and the number of domains' vCPUs already pinned to the candidates' nodes are both considered. Very often, candidates with greater amount of memory are the one we wants, as this is good for keeping memory fragmentation under control. However, we do not want to overcommit some node too much, just because it has a lot of memory, and that's why the number of vCPUs must be accounted for. This all happens internally to libxl, and no API for driving the mechanism is provided for now. This matches what xend already does. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Tested-by: Andre Przywara <andre.przywara@amd.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: rename _IOEMU nic type to VIF_IOEMURoger Pau Monne2012-07-261-1/+1
| | | | | | | | | This change will avoid the confusion caused by the fact that IOEMU means both PV and TAP network interfaces. Signed-off-by: Roger Pau Monne <roger.pau@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: rename libxl_cpumap to libxl_bitmapDario Faggioli2012-07-061-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | And leave to the caller the burden of knowing and remembering what kind of bitmap each instance of libxl_bitmap is. This is basically just some s/libxl_cpumap/libxl_bitmap/ (and some other related interface name substitution, e.g., libxl_for_each_cpu) in a bunch of files, with no real functional change involved. A specific allocation helper is introduced, besides libxl_bitmap_alloc(). It is called libxl_cpu_bitmap_alloc() and is meant at substituting the old libxl_cpumap_alloc(). It is just something easier to use in cases where one wants to allocate a libxl_bitmap that is going to serve as a cpu map. This is because we want to be able to deal with both cpu and NUMA node maps, but we don't want to duplicate all the various helpers and wrappers. While at it, add the usual initialization function, common to all libxl data structures. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.eu.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl,libxc: introduce libxl_get_numainfo()Dario Faggioli2012-07-061-0/+9
| | | | | | | | | | | | | Make some NUMA node information available to the toolstack. Achieve this by means of xc_numainfo(), which exposes memory size and amount of free memory of each node, as well as the relative distances of each node to all the others. For properly exposing distances we need the IDL to support arrays. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: refactor stdvga opinon support.Zhou Peng2012-06-291-1/+11
| | | | | | | | Be ready to add and describe new vga interface Signed-off-by: Zhou Peng <ailvpeng25@gmail.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: allow setting more than 31 vcpusYang Zhang2012-06-281-1/+1
| | | | | | | | | | | | In current implementation, it uses integer to record current avail cpus and this only allows user to specify 31 vcpus. In following patch, it uses cpumap instead integer which make more sense than before. Also there is no limit to the max vcpus. Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: introduce LIBXL_DOMAIN_TYPE_INVALIDDario Faggioli2012-06-061-1/+3
| | | | | | | | | | | | | | | | | | | | | | | To avoid recent gcc complaining about: libxl.c: In function 'libxl_primary_console_exec': libxl.c:1233:9: error: case value '4294967295' not in enumerated type 'libxl_domain_type' [-Werror=switch] Also: - have all the call sites of libxl__domain_type() return with error in case the function returns LIBXL_DOMAIN_TYPE_INVALID; - adjust all other code segments where -Wswitch makes would claim that LIBXL_DOMAIN_TYPE_INVALID is not handled by adding a "default: abort();" clause. Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com> Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> [ ijc -- use LIBXL_DOMAIN_TYPE_INVALID instead of -1 for libxl_domain_build_info.type's keyvar_init_val. -- what used to be libxl_primary_console_exec is now in libxl__primary_console_find so resolve the rejected hunk accordingly ] Committed-by: Ian Campbell <ian.campbell@citrix.com>
* ocaml: fix build after 25446:648508ee27a2, 25449:68d46c5ea0a3 et al.Ian Campbell2012-06-021-1/+1
| | | | | | | | | | | These renamed a type and the associated functions and the ocaml bindings were not updated to suit. This also highlighted that libxl_domain_sched_params should not be DIR_IN since it is also use as an output struct. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: make it possible to explicitly specify default sched paramsIan Campbell2012-06-011-23/+7
| | | | | | | | | | | | | | | | | | | To do so we define a discriminating value which is never a valid real value for each parameter. While there: - removed libxl_sched_*_domain in favour of libxl_domain_sched_params. - use this new functionality for the various xl commands which set sched parameters, which saves an explicit read-modify-write in xl. - removed call of xc_domain_getinfolist from a few functions which weren't actually using the result (looks like a cut and paste error) - fix xl which was setting period for a variety of different config keys. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: rename libxl_sched_params to libxl_domain_sched_paramsIan Campbell2012-06-011-4/+2
| | | | | | | | | | Remove credit scheduler global options from the struct, they were never used anyway. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: add internal function to get a domain's schedulerIan Campbell2012-06-011-0/+2
| | | | | | | | | | | | | | | This takes into account cpupools. Add a helper to get the info for a single cpu pool, refactor libxl_list_cpupool t use this. While there fix the leaks due to not disposing the partial list on realloc failure in that function. Fix the failure of sched_domain_output to free the poolinfo list. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* xl/libxl: add a blkdev_start parameterStefano Stabellini2012-05-291-0/+1
| | | | | | | | | | | | | | | | Introduce a blkdev_start in xl.conf and a corresponding string in libxl_domain_build_info. Add a blkdev_start parameter to libxl__device_disk_local_attach: it is going to be used in a following patch. blkdev_start specifies the first block device to be used for temporary block device allocations by the toolstack. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: do not overwrite user supplied config when running bootloaderIan Campbell2012-05-291-9/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently when running the bootloader libxl will update b_info->u.pv.kernel, .ramdisk, .cmdline and .bootloader. This can expose internal details, such as temporary paths in /var/run/xen/bootloader.*/ to the user. This is problematic because it means that the user cannot re-use the struct as is. This does not effect xl in Xen 4.2+ since it always reparses the guest config and reinitialises the build info, however it did cause issues with reboot in 4.1 (reported by Dmitry Morozhnikov) and may cause issues for other users of libxl. Instead make the libxl bootloader infrastructure provide output to its caller which is slurped into the internal libxl__domain_build_state datastructure. If no bootloader is configured then the bootloader instead propagates the user supplied b_info config. In order to simplify this push the error handling for the case where there is no bootdisk down into libxl__bootloader_run. In principal there is no reason why it shouldn't be possible to do a pure netboot guest with a suitable bootloader, but I don't fix that here. This change allow us to make the libxl_file_reference an internal API, and eventually we might be able to get rid of it. Also removes the publix libxl_run_bootloader interface, neither xl nor libvirt use it. I am proposing this for 4.2 due to the API change. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> [ ijc -- reduced log message in libxl__build_pv from INFO to DEBUG ] Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: Remus - suspend/postflush/commit callbacksShriram Rajagopalan2012-05-181-0/+6
| | | | | | | | | | | | | | | | | | | | | * Add libxl callback functions for Remus checkpoint suspend, postflush (aka resume) and checkpoint commit callbacks. * suspend callback is a stub that just bounces off libxl__domain_suspend_common_callback - which suspends the domain and saves the devices model state to a file. * resume callback currently just resumes the domain (and the device model). * commit callback just writes out the saved device model state to the network and sleeps for the checkpoint interval. * Introduce a new public API, libxl_domain_remus_start (currently a stub) that sets up the network and disk buffer and initiates continuous checkpointing. * Future patches will augment these callbacks/functions with more functionalities like issuing network buffer plug/unplug commands, disk checkpoint commands, etc. Signed-off-by: Shriram Rajagopalan <rshriram@cs.ubc.ca> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: convert console callback to libxl_asyncprogress_howIan Jackson2012-05-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | Remove the old console callback. (Its reentrancy properties were troublesome: in principle, the event loop might be reentered during the callback, and the libxl__domain_create_state swept out from under the feet of the domain creation.) As a side effect of the new code arrangements, the console callback for non-bootloader-using PV guests now occurs near the end of domain creation, in the same place as for HVM guests, rather than near the start. The new arrangements should in principle mean that by the time the console is described as ready by the callback, the xenstore key is indeed ready. So in the future the timeout might be removed from the console client. Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
* libxl: set domain scheduling parameters while creating the domUDieter Bloms2012-04-251-0/+13
| | | | | | | | | | | | | | the domain specific scheduling parameters like cpu_weight, cap, slice, ... will be set during creating the domain, so this parameters can be defined in the domain config file [ Improved the documentation wording slightly. -iwj ] Signed-off-by: Dieter Bloms <dieter@bloms.de> Acked-by: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* xl: add support for vif rate limitingMathieu Gagne2012-04-241-0/+2
| | | | | | | | | | | | | | | | | | | | | The `rate` keyword specifies the rate at which the outgoing traffic will be limited to. The default if this keyword is not specified is unlimited. The `rate` keyword supports an optional replenishment interval parameter for specifying the granularity of credit replenishment. It determines the frequency at which the vif transmission credit is replenished. The default interval is 50ms. For example: 'rate=10Mb/s' 'rate=250KB/s' 'rate=1MB/s@20ms' Signed-off-by: Mathieu Gagne <mgagne@iweb.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* xl, libxl: Add per-device and global permissive config options for pci ↵George Dunlap2012-04-041-0/+1
| | | | | | | | | | | | | | | | | | | | | | | passthrough By default pciback only allows PV guests to write "known safe" values into PCI config space. But many devices require writes to other areas of config space in order to operate properly. One way to do that is with the "quirks" interface, which specifies areas known safe to a particular device; the other way is to mark a device as "permissive", which tells pciback to allow all config space writes for that domain and device. This adds a "permissive" flag to the libxl_pci struct and teaches libxl how to write the appropriate value into sysfs to enable the permissive feature for devices being passed through. It also adds the permissive config options either on a per-device basis, or as a global option in the xl command-line. Because of the potential stability and security implications of enabling permissive, the flag is left off by default. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: support for "rtc_timeoffset" and "localtime"Lin Ming2012-04-021-0/+2
| | | | | | | | | | | | | | | | | | | Implement "rtc_timeoffset" and "localtime" options compatible as xm. rtc_timeoffset is the offset between host time and guest time. localtime means to specify whether the emulted RTC appears as UTC or is offset by the host. Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Lin Ming <mlin@ss.pku.edu.cn> Committed-by: Ian Jackson <ian.jackson.citrix.com> --- docs/man/xl.cfg.pod.5 | 8 ++++++++ tools/libxl/libxl_create.c | 11 +++++++++++ tools/libxl/libxl_dom.c | 3 +++ tools/libxl/libxl_types.idl | 2 ++ tools/libxl/xl_cmdimpl.c | 5 +++++ 5 files changed, 29 insertions(+), 0 deletions(-)
* libxl: publish number of paged pages.Andres Lagar-Cavilla2012-03-131-0/+1
| | | | | | | | This is information is currently not harvested from libxc. Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: Implement libxl_sched_credit_param_[gs]etGeorge Dunlap2012-03-011-0/+5
| | | | | | | | Implement functions to set credit scheduler global parameters. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Committed-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl: autogenerate libxl_FOO_init and libxl_FOO_init_FIELDIan Campbell2012-03-011-12/+14
| | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: idl: generate KeyedUnion key member as part of the KeyedUnionIan Campbell2012-03-011-2/+0
| | | | | | Rather than specifying it twice in the IDL. Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: switch device model selection over to libxl_defboolIan Campbell2012-03-011-2/+2
| | | | | | | | This allows it to be set via the _init/_setdefault methods. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> [since last v -- ERROR_INVAL on stubdomains + !traditional qemu]
* libxl: use defbool for graphics related optionsIan Campbell2012-03-011-10/+10
| | | | | | | This allows them to be set via the _init/_setdefault methods. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
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