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2014-11-23memory: expose alignment used for allocating RAM as MemoryRegion APIIgor Mammedov1-1/+2
introduce memory_region_get_alignment() that returns underlying memory block alignment or 0 if it's not relevant/implemented for backend. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-11-03Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell1-0/+6
staging # gpg: Signature made Mon 03 Nov 2014 11:50:53 GMT using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: (53 commits) block: declare blockjobs and dataplane friends! block: let commit blockjob run in BDS AioContext block: let mirror blockjob run in BDS AioContext block: let stream blockjob run in BDS AioContext block: let backup blockjob run in BDS AioContext block: add bdrv_drain() blockjob: add block_job_defer_to_main_loop() blockdev: add note that block_job_cb() must be thread-safe blockdev: acquire AioContext in blockdev_mark_auto_del() blockdev: acquire AioContext in do_qmp_query_block_jobs_one() block: acquire AioContext in generic blockjob QMP commands iotests: Expand test 061 block/qcow2: Simplify shared L2 handling in amend block/qcow2: Make get_refcount() global block/qcow2: Implement status CB for amend qemu-img: Fix insignificant memleak qemu-img: Add progress output for amend block: Add status callback to bdrv_amend_options() block: qemu-iotest 107 supports NFS iotests: Add test for qcow2's bdrv_make_empty ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-11-03util: introduce MIN_NON_ZEROPeter Lieven1-0/+6
at least in block layer we have the case of limits being defined for a BlockDriverState. However, in this context often zero (0) has the special meanining of undefined which means no limit. If two of those limits are combined and the minimum is needed the minimum function should only return zero if both parameters are zero. Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-11-02bitmap.h: Don't include qemu-common.hEduardo Habkost1-1/+5
This will avoid unexpected circular header dependencies in the future. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-11-02bitops.h: Don't include qemu-common.hEduardo Habkost1-1/+3
This removes the following circular dependency: bitops.h -> qemu-common.h -> target-i386/cpu.h -> target-i386/cpu-qom.h -> qom/cpu.h -> qdev-core.h -> bitmap.h -> bitops.h. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-10-20block: New BlockBackendMarkus Armbruster1-0/+1
A block device consists of a frontend device model and a backend. A block backend has a tree of block drivers doing the actual work. The tree is managed by the block layer. We currently use a single abstraction BlockDriverState both for tree nodes and the backend as a whole. Drawbacks: * Its API includes both stuff that makes sense only at the block backend level (root of the tree) and stuff that's only for use within the block layer. This makes the API bigger and more complex than necessary. Moreover, it's not obvious which interfaces are meant for device models, and which really aren't. * Since device models keep a reference to their backend, the backend object can't just be destroyed. But for media change, we need to replace the tree. Our solution is to make the BlockDriverState generic, with actual driver state in a separate object, pointed to by member opaque. That lets us replace the tree by deinitializing and reinitializing its root. This special need of the root makes the data structure awkward everywhere in the tree. The general plan is to separate the APIs into "block backend", for use by device models, monitor and whatever other code dealing with block backends, and "block driver", for use by the block layer and whatever other code (if any) dealing with trees and tree nodes. Code dealing with block backends, device models in particular, should become completely oblivious of BlockDriverState. This should let us clean up both APIs, and the tree data structures. This commit is a first step. It creates a minimal "block backend" API: type BlockBackend and functions to create, destroy and find them. BlockBackend objects are created and destroyed exactly when root BlockDriverState objects are created and destroyed. "Root" in the sense of "in bdrv_states". They're not yet used for anything; that'll come shortly. A root BlockDriverState is created with bdrv_new_root(), so where to create a BlockBackend is obvious. Where these roots get destroyed isn't always as obvious. It is obvious in qemu-img.c, qemu-io.c and qemu-nbd.c, and in error paths of blockdev_init(), blk_connect(). That leaves destruction of objects successfully created by blockdev_init() and blk_connect(). blockdev_init() is used only by drive_new() and qmp_blockdev_add(). Objects created by the latter are currently indestructible (see commit 48f364d "blockdev: Refuse to drive_del something added with blockdev-add" and commit 2d246f0 "blockdev: Introduce DriveInfo.enable_auto_del"). Objects created by the former get destroyed by drive_del(). Objects created by blk_connect() get destroyed by blk_disconnect(). BlockBackend is reference-counted. Its reference count never exceeds one so far, but that's going to change. In drive_del(), the BB's reference count is surely one now. The BDS's reference count is greater than one when something else is holding a reference, such as a block job. In this case, the BB is destroyed right away, but the BDS lives on until all extra references get dropped. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-14QEMUSizedBuffer based QEMUFileDr. David Alan Gilbert1-0/+1
This is based on Stefan and Joel's patch that creates a QEMUFile that goes to a memory buffer; from: http://lists.gnu.org/archive/html/qemu-devel/2013-03/msg05036.html Using the QEMUFile interface, this patch adds support functions for operating on in-memory sized buffers that can be written to or read from. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Signed-off-by: Joel Schopp <jschopp@linux.vnet.ibm.com> For fixes/tweeks I've done: Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2014-10-09Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell3-1/+3
Four changes here. Polling for reconnection of character devices, the QOMification of accelerators, a fix for -kernel support on x86, and one for a recently-introduced virtio-scsi optimization. # gpg: Signature made Thu 09 Oct 2014 14:36:50 BST using RSA key ID 4E6B09D7 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: (28 commits) qemu-char: Fix reconnect socket error reporting qemu-sockets: Add error to non-blocking connect handler qemu-error: Add error_vreport() virtio-scsi: fix use-after-free of VirtIOSCSIReq linuxboot: compute initrd loading address kvm: Make KVMState be the TYPE_KVM_ACCEL instance struct accel: Create accel object when initializing machine accel: Pass MachineState object to accel init functions accel: Rename 'init' method to 'init_machine' accel: Move accel init/allowed code to separate function accel: Remove tcg_available() function accel: Move qtest accel registration to qtest.c accel: Move Xen registration code to xen-common.c accel: Move KVM accel registration to kvm-all.c accel: Report unknown accelerator as "not found" instead of "does not exist" accel: Make AccelClass.available() optional accel: Use QOM classes for accel types accel: Move accel name lookup to separate function accel: Simplify configure_accelerator() using AccelType *acc variable accel: Create AccelType typedef ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-09qemu-sockets: Add error to non-blocking connect handlerCorey Minyard1-1/+1
An error value here would be quite handy and more consistent with the rest of the code. Signed-off-by: Corey Minyard <cminyard@mvista.com> [Make sure SO_ERROR value is passed to error_setg_errno. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-09qemu-error: Add error_vreport()Corey Minyard1-0/+1
Needed to nicely print socket error reports. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-09accel: Pass MachineState object to accel init functionsEduardo Habkost1-0/+1
Most of the machine options and machine state information is in the MachineState object, not on the MachineClass. This will allow init functions to use the MachineState object directly instead of qemu_get_machine_opts() or the current_machine global. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-03util: Emancipate id_wellformed() from QemuOptsMarkus Armbruster1-1/+0
IDs have long spread beyond QemuOpts: not everything with an ID necessarily goes through QemuOpts. Commit 9aebf3b is about such a case: block layer names are meant to be well-formed IDs, but some of them don't go through QemuOpts, and thus weren't checked. The commit fixed that the straightforward way: rename the internal QemuOpts helper id_wellformed() to qemu_opts_id_wellformed() and give it external linkage. Instead of using it directly in block.c, the commit adds wrapper bdrv_is_valid_name(), probably to hide the connection to QemuOpts. Go one logical step further: emancipate IDs from QemuOpts. Rename the function back to id_wellformed(), and put it in another file. While there, clean up its value to bool. Peel off the bdrv_is_valid_name() wrapper. [Replaced stray return 0 with return false to match bool returns used elsewhere in id_wellformed(). --Stefan] Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-30Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell1-2/+11
This update brings dataplane to virtio-scsi (NOT yet 100% thread-safe, though, which makes it really, really experimental. It also brings asynchronous cancellation to the SCSI subsystem and implements it in virtio-scsi. This is a pretty important feature. Almost all the work here was done by Fam Zheng. I also included the virtio refcount fixes from Gonglei, because they had a small conflict with virtio-scsi dataplane. This pull request is using the new subkey 4E6B09D7. # gpg: Signature made Tue 30 Sep 2014 12:31:02 BST using RSA key ID 4E6B09D7 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: (39 commits) block/iscsi: handle failure on malloc of the allocationmap util: introduce bitmap_try_new virtio-scsi: Handle TMF request cancellation asynchronously scsi: Introduce scsi_req_cancel_async scsi: Introduce scsi_req_cancel_complete scsi: Drop SCSIReqOps.cancel_io scsi: Unify request unref in scsi_req_cancel scsi-generic: Handle canceled request in scsi_command_complete scsi: Drop scsi_req_abort virtio-scsi: Process ".iothread" property virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling virtio-scsi: Batched prepare for cmd reqs virtio-scsi: Two stages processing of cmd request virtio-scsi: Add migration state notifier for dataplane code virtio-scsi: Hook up with dataplane virtio-scsi-dataplane: Code to run virtio-scsi on iothread virtio-scsi: Add VirtIOSCSIVring in VirtIOSCSIReq virtio-scsi: Add 'iothread' property to virtio-scsi virtio: add a wrapper for virtio-backend initialization virtio-9p: fix virtio-9p child refcount in transports ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-30util: introduce bitmap_try_newPeter Lieven1-2/+11
regular bitmap_new simply aborts if the memory allocation fails. bitmap_try_new returns NULL on failure and allows for proper error handling. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-29qemu/compiler: Define QEMU_ARTIFICIALRichard Henderson1-0/+6
The combination of always_inline + artificial allows tiny inline functions to be written that do not interfere with debugging. In particular, gdb will not step into an artificial function. The always_inline attribute was introduced in gcc 4.2, and the artificial attribute was introduced in gcc 4.3. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-25block: Validate node-nameKevin Wolf1-0/+1
The device_name of a BlockDriverState is currently checked because it is always used as a QemuOpts ID and qemu_opts_create() checks whether such IDs are wellformed. node-name is supposed to share the same namespace, but it isn't checked currently. This patch adds explicit checks both for device_name and node-name so that the same rules will still apply even if QemuOpts won't be used any more at some point. qemu-img used to use names with spaces in them, which isn't allowed any more. Replace them with underscores. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-22async: aio_context_new(): Handle event_notifier_init failureChrysostomos Nanakos1-1/+1
On a system with a low limit of open files the initialization of the event notifier could fail and QEMU exits without printing any error information to the user. The problem can be easily reproduced by enforcing a low limit of open files and start QEMU with enough I/O threads to hit this limit. The same problem raises, without the creation of I/O threads, while QEMU initializes the main event loop by enforcing an even lower limit of open files. This commit adds an error message on failure: # qemu [...] -object iothread,id=iothread0 -object iothread,id=iothread1 qemu: Failed to initialize event notifier: Too many open files in system Signed-off-by: Chrysostomos Nanakos <cnanakos@grnet.gr> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-09util: Move general qemu_getauxval to util/getauxval.cFam Zheng1-4/+0
So that we won't have an empty getauxval.o which is disliked by ranlib. Reported-by: Peter Maydell <peter.maydell@linaro.org> Tested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-15Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell1-0/+1
Block patches # gpg: Signature made Fri 15 Aug 2014 14:07:42 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (59 commits) block: Catch !bs->drv in bdrv_check() iotests: Add test for image header overlap qcow2: Catch !*host_offset for data allocation qcow2: Return useful error code in refcount_init() mirror: Handle failure for potentially large allocations vpc: Handle failure for potentially large allocations vmdk: Handle failure for potentially large allocations vhdx: Handle failure for potentially large allocations vdi: Handle failure for potentially large allocations rbd: Handle failure for potentially large allocations raw-win32: Handle failure for potentially large allocations raw-posix: Handle failure for potentially large allocations qed: Handle failure for potentially large allocations qcow2: Handle failure for potentially large allocations qcow1: Handle failure for potentially large allocations parallels: Handle failure for potentially large allocations nfs: Handle failure for potentially large allocations iscsi: Handle failure for potentially large allocations dmg: Handle failure for potentially large allocations curl: Handle failure for potentially large allocations ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-15block: Introduce qemu_try_blockalign()Kevin Wolf1-0/+1
This function returns NULL instead of aborting when an allocation fails. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-08-06cpu-exec: Add sleeping algorithmSebastian Tanase1-0/+1
The goal is to sleep qemu whenever the guest clock is in advance compared to the host clock (we use the monotonic clocks). The amount of time to sleep is calculated in the execution loop in cpu_exec. At first, we tried to approximate at each for loop the real time elapsed while searching for a TB (generating or retrieving from cache) and executing it. We would then approximate the virtual time corresponding to the number of virtual instructions executed. The difference between these 2 values would allow us to know if the guest is in advance or delayed. However, the function used for measuring the real time (qemu_clock_get_ns(QEMU_CLOCK_REALTIME)) proved to be very expensive. We had an added overhead of 13% of the total run time. Therefore, we modified the algorithm and only take into account the difference between the 2 clocks at the begining of the cpu_exec function. During the for loop we try to reduce the advance of the guest only by computing the virtual time elapsed and sleeping if necessary. The overhead is thus reduced to 3%. Even though this method still has a noticeable overhead, it no longer is a bottleneck in trying to achieve a better guest frequency for which the guest clock is faster than the host one. As for the the alignement of the 2 clocks, with the first algorithm the guest clock was oscillating between -1 and 1ms compared to the host clock. Using the second algorithm we notice that the guest is 5ms behind the host, which is still acceptable for our use case. The tests where conducted using fio and stress. The host machine in an i5 CPU at 3.10GHz running Debian Jessie (kernel 3.12). The guest machine is an arm versatile-pb built with buildroot. Currently, on our test machine, the lowest icount we can achieve that is suitable for aligning the 2 clocks is 6. However, we observe that the IO tests (using fio) are slower than the cpu tests (using stress). Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr> Tested-by: Camille Bégué <camille.begue@openwide.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-06timer: add cpu_icount_to_ns function.KONRAD Frederic1-0/+1
This adds cpu_icount_to_ns function which is needed for reverse execution. It returns the time for a specific instruction. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-06-24Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell1-1/+2
* remotes/qmp-unstable/queue/qmp: (43 commits) monitor: protect event emission monitor: protect outbuf and mux_out with mutex qemu-char: make writes thread-safe qemu-char: move pty_chr_update_read_handler around qemu-char: do not call chr_write directly qemu-char: introduce qemu_chr_alloc qapi event: clean up qapi event: convert QUORUM events qapi event: convert GUEST_PANICKED qapi event: convert BALLOON_CHANGE qmp: convert ACPI_DEVICE_OST event qapi event: convert SPICE events qapi event: convert VNC events qapi event: convert NIC_RX_FILTER_CHANGED qapi event: convert other BLOCK_JOB events qapi event: convert BLOCK_IMAGE_CORRUPTED qapi event: convert BLOCK_IO_ERROR and BLOCK_JOB_ERROR qapi event: convert DEVICE_TRAY_MOVED qapi event: convert DEVICE_DELETED qapi event: convert WATCHDOG ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-23qapi event: convert SPICE eventsWenchao Xia1-1/+0
SPICE_INITIALIZED, SPICE_CONNECTED, SPICE_DISCONNECTED and SPICE_MIGRATE_COMPLETED are converted in one patch, since they use some common functions. inet_strfamily() is removed since no callers exist anymore. Note that there is no existing doc for SPICE_MIGRATE_COMPLETED in docs/qmp/qmp-events.txt before this patch. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi: adjust existing definesWenchao Xia1-0/+2
In order to let event defines use existing types later, instead of redefine new ones, some old type defines for spice and vnc are changed, and BlockErrorAction is moved from block.h to qapi schema. Note that BlockErrorAction is not merged with BlockdevOnError. At this point, VncInfo is not made a child of VncBasicInfo, because VncBasicInfo has mandatory fields where VncInfo makes them optional. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23tcg-ppc: Merge cache-utils into the backendRichard Henderson1-44/+0
As a "utility", it only supported ppc, and in a way that other tcg backends provided directly in tcg-target.h. Removing this disparity is easier now that the two ppc backends are merged. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-23qemu/osdep: Remove the need for qemu_init_auxvalRichard Henderson1-12/+0
Instead of getting backup auxv data from the env pointer given to main, read it from /proc/self/auxv. We can do this at any time, so we're not tied to any ordering wrt a call to qemu_init_auxval from main. Tested-by: Tom Musta <tommusta@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-06-20Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell2-0/+88
pc,pci,virtio,hotplug fixes, enhancements numa work by Hu Tao and others memory hotplug by Igor vhost-user by Nikolay, Antonios and others guest virtio announcements by Jason qtest fixes by Sergey qdev hotplug fixes by Paolo misc other fixes mostly by myself Signed-off-by: Michael S. Tsirkin <mst@redhat.com> * remotes/mst/tags/for_upstream: (109 commits) numa: use RAM_ADDR_FMT with ram_addr_t qapi/string-output-visitor: fix bugs tests: simplify code qapi: fix input visitor bugs acpi: rephrase comment qmp: add ACPI_DEVICE_OST event handling qmp: add query-acpi-ospm-status command acpi: implement ospm_status() method for PIIX4/ICH9_LPC devices acpi: introduce TYPE_ACPI_DEVICE_IF interface qmp: add query-memory-devices command numa: handle mmaped memory allocation failure correctly pc: acpi: do not hardcode preprocessor qmp: clean out whitespace qdev: recursively unrealize devices when unrealizing bus qdev: reorganize error reporting in bus_set_realized qapi: fix build on glib < 2.28 qapi: make string output visitor parse int list qapi: make string input visitor parse int list tests: fix memory leak in test of string input visitor hmp: add info memdev ... Conflicts: include/hw/i386/pc.h [PMM: fixed minor conflict in pc.h] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-19hostmem: add merge and dump propertiesPaolo Bonzini1-0/+10
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19osdep: add merge and dump flagsMichael S. Tsirkin1-0/+4
will be used by follow up patch Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19Introduce signed range.Hu Tao1-0/+72
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: split up patch
2014-06-19memory: move preallocation code out of exec.cPaolo Bonzini1-0/+2
So that backends can use it. Since we need the page size for efficiency, move code to compute it out of translate-all.c and into util/oslib-win32.c. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-19include/qemu/aes.h: Avoid conflicts with FreeBSD AES functionsSean Bruno1-0/+9
FreeBSD's libcrypto provides functions with the same names as us; use #define to rename our versions to avoid conflicts at link time. Signed-off-by: Sean Bruno <sbruno@freebsd.org> Signed-off-by: Ed Maste <emaste@freebsd.org> Message-id: 1402930927-41125-1-git-send-email-sbruno@freebsd.org [PMM: improved commit message, fixed comment typo] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-18bitops: provide an inline implementation of find_first_bitAurelien Jarno1-1/+11
find_first_bit has started to be used heavily in TCG code. The current implementation based on find_next_bit is not optimal and can't be optimized be the compiler if the bit array has a fixed size, which is the case most of the time. This new implementation does not use find_next_bit and is yet small enough to be inlined. Cc: Corentin Chary <corentin.chary@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2014-06-16Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' ↵Peter Maydell1-0/+14
into staging Patch queue for ppc - 2014-06-16 This pull request brings a lot of fun things. Among others we have - e500: u-boot firmware support - sPAPR: magic page enablement - sPAPR: add "compat" CPU option to support older guests - sPAPR: refactorings in preparation for VFIO - POWER8 live migration - mac99: expose bus frequency - little endian core dump, gdb and disas support - new ppc64le-linux-user target - DFP emulation - bug fixes # gpg: Signature made Mon 16 Jun 2014 12:28:32 BST using RSA key ID 03FEDC60 # gpg: Can't check signature: public key not found * remotes/agraf/tags/signed-ppc-for-upstream: (156 commits) spapr_pci: Advertise MSI quota PPC: KVM: Make pv hcall endian agnostic powerpc: use float64 for frsqrte spapr: Add kvm-type property spapr: Create SPAPRMachine struct linux-user: Tell guest about big host page sizes spapr_hcall: Add address-translation-mode-on-interrupt resource in H_SET_MODE spapr_hcall: Split h_set_mode() target-ppc: Enable DABRX SPR and limit it to <=POWER7 target-ppc: Enable PPR and VRSAVE SPRs migration target-ppc: Add POWER8's Event Based Branch (EBB) control SPRs KVM: target-ppc: Enable TM state migration target-ppc: Add POWER8's TM SPRs target-ppc: Add POWER8's MMCR2/MMCRS SPRs target-ppc: Enable FSCR facility check for TAR target-ppc: Add POWER8's FSCR SPR target-ppc: Add POWER8's TIR SPR target-ppc: Refactor class init for POWER7/8 target-ppc: Switch POWER7/8 classes to use correct PMU SPRs target-ppc: Make use of gen_spr_power5p_lpar() for POWER7/8 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-06-16util: Add InvMixColumnsTom Musta1-0/+7
This patch adds the table implementation of the Advanced Encryption Standard (AES) InvMixColumns transformation. The patch is intentionally asymmetrical -- the MixColumns table is not added because there is no known use for it at this time. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16util: Add AES ShiftRows and InvShiftRows TablesTom Musta1-0/+4
This patch adds tables that implement the Advanced Encryption Standard (AES) ShiftRows and InvShiftRows transformations. These are commonly used in instruction models. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16util: Add S-Box and InvS-Box Arrays to Common AES UtilsTom Musta1-0/+3
This patch adds tables for the S-Box and InvS-Box transformations commonly used by various Advanced Encription Standard (AES) instruction models. Signed-off-by: Tom Musta <tommusta@gmail.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16QemuOpts: cleanup tmp 'allocated' member from QemuOptsListChunyan Liu1-6/+0
Now only qemu_opts_append uses 'allocated' to indicate free memory. For this function only, we can also let result list's (const char *) members point to input list's members, only if the input list has longer lifetime than result list. In current code, that is true. So, we can remove the 'allocated' member from QemuOptsList definition to keep code clean. Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16cleanup QEMUOptionParameterChunyan Liu1-47/+1
Now that all backend drivers are using QemuOpts, remove all QEMUOptionParameter related codes. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: export qemu_opt_findChunyan Liu1-0/+1
Export qemu_opt_find for qcow2 driver using it. After replacing QEMUOptionParameter with QemuOpts, qcow2 driver will use qemu_opt_find to judge if an option is explicitly set, to replace the usage of .assigned in QEMUOptionParameter. Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: add qemu_opts_append to replace append_option_parametersChunyan Liu1-0/+5
For later merge .create_opts of drv and proto_drv in qemu-img commands. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Leandro Dorileo <l@dorileo.org> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: add conversion between QEMUOptionParameter to QemuOptsChunyan Liu1-0/+9
Add two temp conversion functions between QEMUOptionParameter to QemuOpts, so that next patch can use it. It will simplify later patch for easier review. And will be finally removed after all backend drivers switch to QemuOpts. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Leandro Dorileo <l@dorileo.org> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: add qemu_opts_print_help to replace print_option_helpChunyan Liu1-0/+1
print_option_help takes QEMUOptionParameter as parameter, add qemu_opts_print_help to take QemuOptsList as parameter for later replace work. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Leandro Dorileo <l@dorileo.org> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: add qemu_opt_get_*_del functions for replace workChunyan Liu1-0/+6
Add qemu_opt_get_del, qemu_opt_get_bool_del, qemu_opt_get_number_del and qemu_opt_get_size_del to replace the same handling of QEMUOptionParameter (get and delete). Several drivers are coded to parse a known subset of options, then remove them from the list before handing all remaining options to a second driver for further option processing. get_*_del makes it easier to retrieve a known option (or its default) and remove it from the list all in one action. Share common helper function: For qemu_opt_get_bool/size/number, they and their get_*_del counterpart could share most of the code except whether or not deleting the opt from option list, so generate common helper functions. For qemu_opt_get and qemu_opt_get_del, keep code duplication, since 1. qemu_opt_get_del returns malloc'd memory while qemu_opt_get returns in-place memory 2. qemu_opt_get_del returns (char *), qemu_opt_get returns (const char *), and could not change to (char *), since in one case, it will return desc->def_value_str, which is (const char *). Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: change opt->name|str from (const char *) to (char *)Chunyan Liu1-2/+2
qemu_opt_del() already assumes that all QemuOpt instances contain malloc'd name and value; but it had to cast away const because opts_start_struct() was doing its own thing and using static storage instead. By using the correct type and malloced strings everywhere, the usage of this struct becomes clearer. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Leandro Dorileo <l@dorileo.org> Signed-off-by: Chunyan Liu <cyliu@suse.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: add def_value_str to QemuOptDescChunyan Liu1-0/+1
Add def_value_str (default value) to QemuOptDesc, to replace function of the default value in QEMUOptionParameter. Improve qemu_opts_get_* functions: if find opt, return opt->str; otherwise, if desc->def_value_str is set, return desc->def_value_str; otherwise, return input defval. Improve qemu_opts_print: if option is set, print opt->str; otherwise, if desc->def_value_str is set, print it. Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com> Signed-off-by: Chunyan Liu <cyliu@suse.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-16QemuOpts: repurpose qemu_opts_print to replace print_option_parametersChunyan Liu1-1/+1
Currently this function is not used anywhere. In later patches, it will replace print_option_parameters. To avoid print info changes, change qemu_opts_print from fprintf stderr to printf, and remove last printf. Signed-off-by: Chunyan Liu <cyliu@suse.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-04throttle: add throttle_detach/attach_aio_context()Stefan Hajnoczi1-0/+10
Block I/O throttling uses timers and currently always adds them to the main loop. Throttling will break if bdrv_set_aio_context() is used to move a BlockDriverState to a different AioContext. This patch adds throttle_detach/attach_aio_context() interfaces so the throttling timers and uses them to move timers to the new AioContext. Note that bdrv_set_aio_context() already drains all requests so we're sure no throttled requests are pending. The test cases need to be updated since the throttle_init() interface has changed. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net>
2014-05-30int128: Add int128_exts64()Alexey Kardashevskiy1-0/+5
This adds macro to extend signed 64bit value to signed 128bit value. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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