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* tools: remove minitermIan Campbell2013-08-206-258/+0
| | | | | | | | | | | It has been disabled by default since 2008 (9bb7f7e2aca4). Back then Ian J asserted it was useful to keep them in the tree in source form. I don't think this is true anymore. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: delete xsviewIan Campbell2013-08-206-189/+1
| | | | | | | | | | | This was apparently a Qt xenstore viewer. It hasn't been touched since it was first committed in 2007 and I can't beleive anyone is actually using even if it still happens to work. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: remove in tree libaioIan Campbell2013-08-2089-6355/+11
| | | | | | | | | | | | | | | We have defaulted to using the system libaio for a while now and I din't think there are any relevant distros which don't have it that running Xen 4.4 would be reasonable on. Also it has caused confusion because it is not ever wanted on ARM, but the build system doesn't express that (could be fixed, but deleting is the right thing to do anyway). Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: make building xend configurable.Ian Campbell2013-08-207-30/+83
| | | | | | | | | | | | | xend has been deprecated for 2 releases now. Lets make it possible to not even build it. For now I'm leaving the default of on but I would like to change that before the 4.4 release. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* tools: move xm and xend under tools pythonIan Campbell2013-08-204-1/+5
| | | | | | | Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: silence HVM domain creation messagesMatthew Daley2013-08-201-2/+2
| | | | | | | | | | | There's no need for xl to output these messages on HVM domain creation to stderr by default. Change their loglevels from XTL_INFO to XTL_DETAIL; then the messages output by xl are the same as those for PV domain creation. These now-silenced messages can still be seen using verbose (-v) mode. Signed-off-by: Matthew Daley <mattjd@gmail.com>
* vif-bridge: fix cut behavior changeBob Proulx2013-08-201-2/+1
| | | | | | | | A recent change in GNU cut disallows use of a newline as a field delimiter. Avoid the problematic use of cut in vif-bridge. Signed-off-by: Bob Proulx <bob@proulx.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* tools: Cull more ia64 and ppc codeAndrew Cooper2013-08-202-99/+0
| | | | | Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
* tools: xen-mceinj: Add missing return value checksBastian Blank2013-08-191-2/+4
| | | | | | | | | | | The return value of vasprintf must be checked. This check is enforced with the compiler options used in Debian by request and in Ubuntu by default. Check the return value and abort on error. Signed-off-by: Bastian Blank <waldi@debian.org> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* rombios/debug: Reduce verbosity of rombiosAndrew Cooper2013-08-081-1/+2
| | | | | | | | Default builds of Qemu have the Bochs debug port logging #ifdef'd out, so remove all the completely wasted VMExits Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* rombios/ata Remove another needless trap from the int 0x13 hotpathAndrew Cooper2013-08-081-19/+13
| | | | | | | | | | | The return value from await_ide() is always ignored, and most calls to await_ide() immediately reread the status register. Therefore, making await_ide() return the last value of the status register removes a further two traps on the int 0x13 path. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* rombios/ata: Reading this status register has no relevant side effectsAndrew Cooper2013-08-081-1/+0
| | | | | | | | So taking two traps when one will do is pointless. This removes 1 of 13 VMExits on the int 0x13 hotpath. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* rombios/ata: Do not wait for BSY to be setAndrew Cooper2013-08-081-2/+2
| | | | | | | | | | | | | | | | | | After issuing a reset, the BSY bit is expected to be set. This is not the case for Qemu. In SeaBIOS.git: 580e33293244fee4556e56ecc67b8bd877f3c496 this check was even replaced with a udelay(5), as enough real hardware ignored the BSY bit as well. As rombios does not have an equivalent udelay(), replace the wait with a write to port 0x80 which is whitelisted by Xen for 'a small delay'. This causes 42k fewer IO traps to Qemu. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* rombios/keyboard: Don't needlessly poll the status registerAndrew Cooper2013-08-081-2/+2
| | | | | | | | Repeated polling of the status register is not going to change its value, so don't needlessly take 8192 traps to Qemu when 1 will do. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Keir Fraser <keir@xen.org>
* autoconf: regenerate configure scripts with 4.4 versionIan Campbell2013-08-081-9/+9
| | | | | | | No semantic change, reduced noise in future patches. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* Add vendor_device parameter for HVM guestsPaul Durrant2013-08-054-0/+36
| | | | | | | | | | | | 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: Fix function libxl__domain_resume_device_modelrwxybh2013-08-021-0/+1
| | | | | | | Add a break line in function libxl__domain_resume_device_model Signed-off-by: Bingheng Yan <rwxybh@126.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* flask: use DESTDIR directly in install target rulesVadim A. Misbakh-Soloviov2013-08-021-3/+3
| | | | | | | | | | 30.07.2013 13:51, Ian Campbell wrote: > I think it would be a bit less surprising for drive by patchers etc to > remove the DESTDIR from POLICY_LOADPATH and add it to the install > target, which is the usual way to do things. Up to you/Vadim though. Signed-off-by: Vadim A. Misbakh-Soloviov <mva@mva.name> Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* tools: build flask-tools and flask policy only if flask enabledVadim A. Misbakh-Soloviov2013-08-021-1/+1
| | | | | Signed-off-by: Vadim A. Misbakh-Soloviov <mva@mva.name> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* flask: avoid installing policy file as '/boot'Vadim A. Misbakh-Soloviov2013-08-021-0/+1
| | | | | Signed-off-by: Vadim A. Misbakh-Soloviov <mva@mva.name> Acked-by: Daniel De Graaf <dgdegra@tycho.nsa.gov>
* oxenstored: Protect oxenstored from malicious domains.=John Liu2013-07-225-6/+31
| | | | | | | | | | | | | | | add check logic when read from IO ring, and if error happens, then mark the reading connection as "bad", Unless vm reboot, oxenstored will not handle message from this connection any more. xs_ring_stubs.c: add a more strict check on ring reading connection.ml, domain.ml: add getter and setter for bad flag process.ml: if exception raised when reading from domain's ring, mark this domain as "bad" xenstored.ml: if a domain is marked as "bad", do not handle it. Signed-off-by: John Liu <john.liuqiming@huawei.com> Acked-by: David Scott <dave.scott@eu.citrix.com>
* libxl: Add vif.default.backend to xl.confGeorge Dunlap2013-07-224-0/+15
| | | | | | | | | This will allow a user to default to a network driver domain system-wide. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* xl: Enable by default claim mode.Konrad Rzeszutek Wilk2013-07-222-2/+2
| | | | | | | | | | During the Xen 4.3 release we discussed that this feature could be turned on by default - as it benefits all of the guests - not just tmem related. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: Allow network driver domains when run_hotplug_scritps is setGeorge Dunlap2013-07-171-7/+0
| | | | | | | | | | | | | | As of commit 05bfd984dfe7014f1f5ea1133608b9bab589c120, hotplug scripts are not run if backend_domid != LIBXL_TOOSTACK_DOMID; so there is no reason to restrict this for network driver domains any more. This is a candidate for backporting to 4.3. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Roger Pau Monné <roger.pau@citrix.com> CC: Ian Campbell <ian.campbell@citrix.com> CC: Ian Jackson <ian.jackson@citrix.com> CC: Jan Beulich <jbeulich@suse.com>
* xl: support for leaving domain paused after saveIan Murray2013-07-172-7/+16
| | | | | | | | | | | | | | New feature to allow xl save to leave a domain paused after its memory has been saved. This is to allow disk snapshots of domU to be taken that exactly correspond to the memory state at save time. Once the snapshot(s) have been taken or whatever, the domain can be unpaused in the usual manner. Usage: xl save -p <domid> <filespec> Signed-off-by: Ian Murray <murrayie@yahoo.co.uk> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* pygrub: allow user to specify an explicit offset to fsKjetil Torgrim Homme2013-07-171-4/+13
| | | | | | | This new option overrides partition table parsing Signed-off-by: Kjetil Torgrim Homme <kjetil.homme@redpill-linpro.com> Reviewed-by: Matt Wilson <msw@amazon.com>
* xl: Add 'xen_version' to `xl info`Andrew Cooper2013-07-121-0/+2
| | | | | | | | | | | | Getting the full Xen version in an easily scriptable way is awkward, especially if trying to piece together from xen_{major,minor,extra}. This reflects $(XEN_FULLVERSION) in the build system (but under a more sensible name, as $(XEN_VERSION) is just the major number). Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: Matt Wilson <msw@amazon.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* Revert "hvmloader: always include HPET table"Jan Beulich2013-07-081-5/+7
| | | | | | | | | | This reverts commit e4fd0475a08fda414da27c4e57b568f147cfc07e. Conflicts: tools/firmware/hvmloader/acpi/build.c Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Keir Fraser <keir.xen@gmail.com>
* Revert "/home/jbeulich/tmp/commit.txt"Jan Beulich2013-07-081-7/+5
| | | | This reverts commit 80e3eddcc4896ab40c24506fd05f9795c4039b48.
* /home/jbeulich/tmp/commit.txtJan Beulich2013-07-081-5/+7
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* libxl: do not call exit() in libxl_device_vtpm_listMarek Marczykowski2013-07-041-5/+6
| | | | | | | | Signal error with NULL return value, do not terminate the whole process. Signed-off-by: Marek Marczykowski <marmarek@invisiblethingslab.com> Reviewed-by: Jim Fehlig <jfehlig@suse.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* cpufreq, xenpm: fix cpufreq and xenpm mismatchJacob Shin2013-07-021-11/+3
| | | | | | | | Currently cpufreq and xenpm are out of sync. Fix cpufreq reporting of if turbo mode is enabled or not. Fix xenpm to not decode for tristate, but a boolean. Signed-off-by: Jacob Shin <jacob.shin@amd.com>
* libxl: suppress device assignment to HVM guest when there is no IOMMUIan Jackson2013-07-011-0/+12
| | | | | | | | | | | | | | | | | | | | | | | This in effect copies similar logic from xend: While there's no way to check whether a device is assigned to a particular guest, XEN_DOMCTL_test_assign_device at least allows checking whether an IOMMU is there and whether a device has been assign to _some_ guest. For the time being, this should be enough to cover for the missing error checking/recovery in other parts of libxl's device assignment paths. There remains a (functionality-, but not security-related) race in that the iommu should be set up earlier, but this is too risky a change for this stage of the 4.3 release. This is a security issue, XSA-61. Signed-off-by: Jan Beulich <jbeulich@suse.com> Tested-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxc: xc_evtchn_open does not return -1 on error.Vincent Bernardoff2013-06-281-2/+2
| | | | | Signed-off-by: Vincent Bernardoff <vincent.bernardoff@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* gcov: Do not use mmap directly but use xc_hypercall_buffer_allocFrediano Ziglio2013-06-271-13/+9
| | | | | | | | xencov.c did not compile on NetBSD so use xc_hypercall_buffer which is more portable. Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* pygrub: add fedora 19 grub.cfg exampleMarcel J.E. Mol2013-06-271-0/+117
| | | | | | | | | This grub.cfg from a default fedora 19 Beta install caused pygrub failures.The previous pygrub commit fixed taht. So this example file added for reference. Signed-off-by: Marcel Mol <marcel@mesa.nl> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* pygrub/GrubConf: fix boot problem for fedora 19 grub.cfg (2nd attempt)Marcel J.E. Mol2013-06-271-0/+2
| | | | | | | | | | | | | | | Booting a fedora 19 domU failed because a it could not properly parse the grub.cfg file. This was cased by set default="${next_entry}" This statement actually is within an 'if' statement, so maybe it would be better to skip code within if/fi blocks... But this patch seems to work fine. Signed-off-by: Marcel Mol <marcel@mesa.nl> Acked-by: Ian Campbell <ian.campbell@citix.com> Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Xendomains was not correctly suspending domains when a STOP was issued.Ian Murray2013-06-271-5/+5
| | | | | | | | | | | | | | | | | The regex was not selecting the { when parsing JSON output of xl list -l. It was also not selecting (domain when parsing xl list -l when SXP selected. Pefixed { with 4 spaces, and removed an extra ( before domain in the regex string Added quotes around the grep strings so the spaces inserted into the string didn't not break the grepping. This has now been tested against 4.3RC5 Signed-off-by: Ian Murray <murrayie@yahoo.co.uk> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
* libxl: Use QMP cpu-add to hotplug CPU with qemu-xen.Anthony PERARD2013-06-261-6/+46
| | | | | | Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Reviewed-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: Add "cpu-add" QMP command.Anthony PERARD2013-06-262-0/+23
| | | | | | | Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> [ ijc -- rename index parameter to avoid Wshadow due to index(3) in strings.h ]
* Merge branch 'staging' of ssh://xenbits.xen.org/home/xen/git/xen into stagingIan Campbell2013-06-261-0/+1
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| * also override library path for hotplug scriptsJan Beulich2013-06-261-0/+1
| | | | | | | | | | | | | | | | | | Overriding PATH but not LD_LIBRARY_PATH is bogus, as it may result in the use of mismatched binaries and libraries. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
* | tools/libxc: Fix memory leaks in xc_domain_save()Andrew Cooper2013-06-261-0/+9
| | | | | | | | | | | | | | | | Introduces outbuf_free() to mirror the currently existing outbuf_init(). Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* | libxc: Fix guest boot on ARM after XSA-55Julien Grall2013-06-262-4/+7
| | | | | | | | | | | | | | | | XSA-55 has exposed errors for guest creation on ARM: - domain virt_base was not defined; - xc_dom_alloc_segment allocates pfn from 0 instead of the RAM base address. Signed-off-by: Julien Grall <julien.grall@linaro.org>
* | libxl: Fix assignment of devid value returned from libxl__device_nextidJim Fehlig2013-06-261-4/+4
|/ | | | | | | | | | | | | | | | | | | Commit 5420f265 has some misplaced parenthesis that caused devid to be assigned 1 or 0 based on checking return value of libxl__device_nextid < 0, e.g. devid = libxl__device_nextid(...) < 0 This works when only one instance of a given device type exists, but subsequent devices of the same type will also have a devid = 1 if libxl__device_nextid succeeds. Fix by checking the value assigned to devid, e.g. (devid = libxl__device_nextid(...)) < 0 Signed-off-by: Jim Fehlig <jfehlig@suse.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com>
* libxl: Restrict permissions on PV console device xenstore nodesIan Jackson2013-06-255-36/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Matthew Daley has observed that the PV console protocol places sensitive host state into a guest writeable xenstore locations, this includes: - The pty used to communicate between the console backend daemon and its client, allowing the guest administrator to read and write arbitrary host files. - The output file, allowing the guest administrator to write arbitrary host files or to target arbitrary qemu chardevs which include sockets, udp, ptr, pipes etc (see -chardev in qemu(1) for a more complete list). - The maximum buffer size, allowing the guest administrator to consume more resources than the host administrator has configured. - The backend to use (qemu vs xenconsoled), potentially allowing the guest administrator to confuse host software. So we arrange to make the sensitive keys in the xenstore frontend directory read only for the guest. This is safe since the xenstore permissions model, unlike POSIX directory permissions, does not allow the guest to remove and recreate a node if it has write access to the containing directory. There are a few associated wrinkles: - The primary PV console is "special". It's xenstore node is not under the usual /devices/ subtree and it does not use the customary xenstore state machine protocol. Unfortunately its directory is used for other things, including the vnc-port node, which we do not want the guest to be able to write to. Rather than trying to track down all the possible secondary uses of this directory just make it r/o to the guest. All newly created subdirectories inherit these permissions and so are now safe by default. - The other serial consoles do use the customary xenstore state machine and therefore need write access to at least the "protocol" and "state" nodes, however they may also want to use arbitrary "feature-foo" nodes (although I'm not aware of any) and therefore we cannot simply lock down the entire frontend directory. Instead we add support to libxl__device_generic_add for frontend keys which are explicitly read only and use that to lock down the sensitive keys. - Minios' console frontend wants to write the "type" node, which it has no business doing since this is a host/toolstack level decision. This fails now that the node has become read only to the PV guest. Since the toolstack already writes this node just remove the attempt to set it. This is a security issue, XSA-57. Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
* tools/libxc: Fix memory leaks in xc_domain_restore()Andrew Cooper2013-06-241-0/+3
| | | | | | Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (re 4.3 release) Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
* libxl,hvmloader: Don't relocate memory for MMIO holeGeorge Dunlap2013-06-242-2/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the moment, qemu-xen can't handle memory being relocated by hvmloader. This may happen if a device with a large enough memory region is passed through to the guest. At the moment, if this happens, then at some point in the future qemu will crash and the domain will hang. (qemu-traditional is fine.) It's too late in the release to do a proper fix, so we try to do damage control. hvmloader already has mechanisms to relocate memory to 64-bit space if it can't make a big enough MMIO hole. By default this is 2GiB; if we just refuse to make the hole bigger if it will overlap with guest memory, then the relocation will happen by default. v5: - Update comment to not refer to "this series". v4: - Wrap long line in libxl_dm.c - Fix comment v3: - Fix polarity of comparison - Move diagnostic messages to another patch - Tested with xen platform pci device hacked to have different BAR sizes {256MiB, 1GiB} x {qemu-xen, qemu-traditional} x various memory configurations - Add comment explaining why we default to "allow" - Remove cast to bool v2: - style fixes - fix and expand comment on the MMIO hole loop - use "%d" rather than "%s" -> (...)?"1":"0" - use bool instead of uint8_t - Move 64-bit bar relocate detection to another patch - Add more diagnostic messages Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> CC: Ian Campbell <ian.campbell@citrix.com> CC: Stefano Stabellini <stefano.stabellini@citrix.com> CC: Hanweidong <hanweidong@huawei.com> CC: Keir Fraser <keir@xen.org> CC: Keir Fraser <keir@xen.org>
* hvmloader: Remove minimum size for BARs to relocate to 64-bit spaceGeorge Dunlap2013-06-242-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | Allow devices with BARs less than 512MiB to be relocated to high memory. This will only be invoked if there is not enough low MMIO space to map the device, and will be done preferentially to large devices first; so in all likelihood only large devices will be remapped anyway. This is needed to work-around the issue of qemu-xen not being able to handle moving guest memory around to resize the MMIO hole. The default MMIO hole size is less than 256MiB. v3: - Fixed minor style issue Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> CC: Ian Campbell <ian.campbell@citrix.com> CC: Hanweidong <hanweidong@huawei.com> CC: Keir Fraser <keir@xen.org>
* hvmloader: Load large devices into high MMIO space as neededGeorge Dunlap2013-06-241-1/+7
| | | | | | | | | | | | | | | | | | | | | | | Keep track of how much mmio space is left total, as well as the amount of "low" MMIO space (<4GiB), and only load devices into high memory if there is not enough low memory for the rest of the devices to fit. Because devices are processed by size in order from large to small, this should preferentially relocate devices with large BARs to 64-bit space. v3: - Just use mmio_total rather than introducing a new variable. - Port to using mem_resource directly rather than low_mmio_left Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> CC: Ian Campbell <ian.campbell@citrix.com> CC: Stefano Stabellini <stefano.stabellini@citrix.com> CC: Hanweidong <hanweidong@huawei.com> CC: Keir Fraser <keir@xen.org>
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