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2013-06-28qemu-iotests: add 055 drive-backup test caseStefan Hajnoczi3-0/+288
Testing drive-backup is similar to image streaming and drive mirroring. This test case is based on 041. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28qemu-iotests: extract wait_until_completed() into iotests.pyStefan Hajnoczi2-12/+17
The 'drive-mirror' tests often issue 'block-job-complete' and wait for the QMP completion event. Other types of block jobs also want to wait for completion but they may not need to issue 'block-job-complete'. Extract wait_until_completed() from 041 and put it into iotests.py. Return the QMP event object so the caller can make additional assertions, if necessary. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: add Abort transactionStefan Hajnoczi2-1/+27
The Abort action can be used to test QMP 'transaction' failure. Add it as the last action to exercise the .abort() and .cleanup() code paths for all previous actions. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: add DriveBackup transactionStefan Hajnoczi2-1/+88
This patch adds a transactional version of the drive-backup QMP command. It allows atomic snapshots of multiple drives along with automatic cleanup if there is a failure to start one of the backup jobs. Note that QMP events are emitted for block job completion/cancellation and the block job will be listed by query-block-jobs. @device: the name of the device whose writes should be mirrored. @target: the target of the new image. If the file exists, or if it is a device, the existing file/device will be used as the new destination. If it does not exist, a new file will be created. @format: #optional the format of the new destination, default is to probe if @mode is 'existing', else the format of the source @mode: #optional whether and how QEMU should create a new image, default is 'absolute-paths'. @speed: #optional the maximum speed, in bytes per second @on-source-error: #optional the action to take on an error on the source, default 'report'. 'stop' and 'enospc' can only be used if the block device supports io-status (see BlockInfo). @on-target-error: #optional the action to take on an error on the target, default 'report' (no limitations, since this applies to a different block device than @device). Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: allow BdrvActionOps->commit() to be NULLStefan Hajnoczi1-2/+4
Some QMP 'transaction' types don't need to do anything on .commit(). Make .commit() optional just like .abort(). The "drive-backup" action will take advantage of this, it only needs to cancel the block job on .abort(). Other block job actions will probably follow the same pattern, so allow .commit() to be NULL. Suggested-by: Eric Blake <eblake@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: rename BlkTransactionStates to singularStefan Hajnoczi1-52/+52
The QMP 'transaction' command keeps a list of in-flight transactions. The transaction state structure is called BlkTransactionStates even though it only deals with a single transaction. The only plural thing is the linked list of transaction states. I find it confusing to call the single structure "States". This patch renames it to "State", just like BlockDriverState is singular. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28block: add drive-backup QMP commandStefan Hajnoczi3-0/+189
@drive-backup Start a point-in-time copy of a block device to a new destination. The status of ongoing drive-backup operations can be checked with query-block-jobs where the BlockJobInfo.type field has the value 'backup'. The operation can be stopped before it has completed using the block-job-cancel command. @device: the name of the device which should be copied. @target: the target of the new image. If the file exists, or if it is a device, the existing file/device will be used as the new destination. If it does not exist, a new file will be created. @format: #optional the format of the new destination, default is to probe if @mode is 'existing', else the format of the source @mode: #optional whether and how QEMU should create a new image, default is 'absolute-paths'. @speed: #optional the maximum speed, in bytes per second @on-source-error: #optional the action to take on an error on the source, default 'report'. 'stop' and 'enospc' can only be used if the block device supports io-status (see BlockInfo). @on-target-error: #optional the action to take on an error on the target, default 'report' (no limitations, since this applies to a different block device than @device). Note that @on-source-error and @on-target-error only affect background I/O. If an error occurs during a guest write request, the device's rerror/werror actions will be used. Returns: nothing on success If @device is not a valid block device, DeviceNotFound Since 1.6 Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: use bdrv_getlength() in qmp_drive_mirror()Stefan Hajnoczi1-3/+7
Use bdrv_getlength() for its byte units and error return instead of bdrv_get_geometry(). Reported-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28blockdev: drop redundant proto_drv checkStefan Hajnoczi1-15/+0
It is not necessary to check that we can find a protocol block driver since we create or open the image file. This produces the error that we need anyway. Besides, the QERR_INVALID_BLOCK_FORMAT is inappropriate since the protocol is incorrect rather than the format. Also drop an empty line between bdrv_open() and checking its return value. This may be due to copy-pasting from earlier code that performed other operations before handling errors. Reported-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28block: add basic backup support to block driverDietmar Maurer4-0/+369
backup_start() creates a block job that copies a point-in-time snapshot of a block device to a target block device. We call backup_do_cow() for each write during backup. That function reads the original data from the block device before it gets overwritten. The data is then written to the target device. Currently backup cluster size is hardcoded to 65536 bytes. [I made a number of changes to Dietmar's original patch and folded them in to make code review easy. Here is the full list: * Drop BackupDumpFunc interface in favor of a target block device * Detect zero clusters with buffer_is_zero() and use bdrv_co_write_zeroes() * Use 0 delay instead of 1us, like other block jobs * Unify creation/start functions into backup_start() * Simplify cleanup, free bitmap in backup_run() instead of cb * function * Use HBitmap to avoid duplicating bitmap code * Use bdrv_getlength() instead of accessing ->total_sectors * directly * Delete the backup.h header file, it is no longer necessary * Move ./backup.c to block/backup.c * Remove #ifdefed out code * Coding style and whitespace cleanups * Use bdrv_add_before_write_notifier() instead of blockjob-specific hooks * Keep our own in-flight CowRequest list instead of using block.c tracked requests. This means a little code duplication but is much simpler than trying to share the tracked requests list and use the backup block size. * Add on_source_error and on_target_error error handling. * Use trace events instead of DPRINTF() -- stefanha] Signed-off-by: Dietmar Maurer <dietmar@proxmox.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28block: add bdrv_add_before_write_notifier()Stefan Hajnoczi2-12/+34
The bdrv_add_before_write_notifier() function installs a callback that is invoked before a write request is processed. This will be used to implement copy-on-write point-in-time snapshots where we need to copy out old data before overwriting it. Note that BdrvTrackedRequest is moved to block_int.h since it is passed to .notify() functions. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28notify: add NotiferWithReturn so notifier list can abortStefan Hajnoczi2-0/+59
notifier_list_notify() has no return value. This is fine when we just want to invoke side-effects. Sometimes it's useful for notifiers to produce a return value. This allows notifiers to "veto" an operation and will be used by the block layer before-write notifier. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-06-28raw-posix: Fix /dev/cdrom magic on OS XKevin Wolf1-0/+1
The raw-posix driver has code to provide a /dev/cdrom on OS X even though it doesn't really exist. However, since commit c66a6157 the real filename is dismissed after finding it, so opening /dev/cdrom fails. Put the filename back into the options QDict to make this work again. Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-06-27linux-user: Fix compilation failurePeter Maydell3-2/+3
Fix compilation failures for linux-user targets following recent migration related commits bd2fa51fcd and 43487c67. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1372362818-4740-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-27Merge remote-tracking branch 'quintela/migration.next' into stagingAnthony Liguori12-53/+647
# By Michael R. Hines (9) and others # Via Juan Quintela * quintela/migration.next: rdma: introduce capability x-rdma-pin-all rdma: new QEMUFileOps hooks rdma: introduce qemu_ram_foreach_block() rdma: export qemu_fflush() rdma: introduce qemu_file_mode_is_not_valid() rdma: export throughput w/ MigrationStats QMP rdma: export yield_until_fd_readable() rdma: introduce qemu_update_position() rdma: add documentation migration: do not overwrite zero pages Revert "migration: do not sent zero pages in bulk stage" arch_init/ram_load: add error message for block length mismatch Message-id: 1372329455-5995-1-git-send-email-quintela@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-27rdma: introduce capability x-rdma-pin-allMichael R. Hines3-1/+17
This capability allows you to disable dynamic chunk registration for better throughput on high-performance links. For example, using an 8GB RAM virtual machine with all 8GB of memory in active use and the VM itself is completely idle using a 40 gbps infiniband link: 1. x-rdma-pin-all disabled total time: approximately 7.5 seconds @ 9.5 Gbps 2. x-rdma-pin-all enabled total time: approximately 4 seconds @ 26 Gbps These numbers would of course scale up to whatever size virtual machine you have to migrate using RDMA. Enabling this feature does *not* have any measurable affect on migration *downtime*. This is because, without this feature, all of the memory will have already been registered already in advance during the bulk round and does not need to be re-registered during the successive iteration rounds. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Reviewed-by: Eric Blake <eblake@redhat.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: new QEMUFileOps hooksMichael R. Hines3-0/+108
These are the prototypes and implementation of new hooks that RDMA takes advantage of to perform dynamic page registration. An optional hook is also introduced for a custom function to be able to override the default save_page function. Also included are the prototypes and accessor methods used by arch_init.c which invoke funtions inside savevm.c to call out to the hooks that may or may not have been overridden inside of QEMUFileOps. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: introduce qemu_ram_foreach_block()Michael R. Hines2-0/+14
This is used during RDMA initialization in order to transmit a description of all the RAM blocks to the peer for later dynamic chunk registration purposes. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: export qemu_fflush()Michael R. Hines2-1/+2
RDMA uses this to flush the control channel before sending its own message to handle page registrations. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: introduce qemu_file_mode_is_not_valid()Michael R. Hines2-7/+14
QEMUFileRDMA also has read and write modes. This function is now shared to reduce code duplication. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: export throughput w/ MigrationStats QMPMichael R. Hines4-1/+13
This exposes throughput (in megabits/sec) through QMP. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: export yield_until_fd_readable()Michael R. Hines3-28/+29
The RDMA event channel can be made non-blocking just like a TCP socket. Exporting this function allows us to yield so that the QEMU monitor remains available. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: introduce qemu_update_position()Michael R. Hines4-0/+20
RDMA writes happen asynchronously, and thus the performance accounting also needs to be able to occur asynchronously. This allows anybody to call into savevm.c to update both f->pos as well as into arch_init.c to update the acct_info structure with up-to-date values when the RDMA transfer actually completes. Reviewed-by: Juan Quintela <quintela@redhat.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27rdma: add documentationMichael R. Hines1-0/+415
docs/rdma.txt contains full documentation, wiki links, github url and contact information. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27migration: do not overwrite zero pagesPeter Lieven1-6/+8
on incoming migration do not memset pages to zero if they already read as zero. this will allocate a new zero page and consume memory unnecessarily. even if we madvise a MADV_DONTNEED later this will only deallocate the memory asynchronously. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27Revert "migration: do not sent zero pages in bulk stage"Peter Lieven1-9/+4
Not sending zero pages breaks migration if a page is zero at the source but not at the destination. This can e.g. happen if different BIOS versions are used at source and destination. It has also been reported that migration on pseries is completely broken with this patch. This effectively reverts commit f1c72795af573b24a7da5eb52375c9aba8a37972. Conflicts: arch_init.c Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-27arch_init/ram_load: add error message for block length mismatchAlon Levy1-0/+3
Makes it easier to debug situations where the source and target have different ram blocks in a device and migration fails due to that, for instance a BAR size change on a PCI device. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-25Merge remote-tracking branch 'pmaydell/arm-devs.for-upstream' into stagingAnthony Liguori4-260/+369
# By Peter Crosthwaite (3) and others # Via Peter Maydell * pmaydell/arm-devs.for-upstream: nand: Don't inherit from Sysbus block/nand: Convert Sysbus::init to Device::realize block/nand: QOM casting sweep i.MX31: Fix PRCS bit test arm/boot: Free dtb blob memory after use i.MX: Rework functions/types name and use new style initialization i.MX: Implement a more complete version of the GPT timer. ARM: Allow dumping of device tree Message-id: 1372184516-32397-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'pmaydell/target-arm.for-upstream' into stagingAnthony Liguori9-167/+760
# By Peter Maydell # Via Peter Maydell * pmaydell/target-arm.for-upstream: target-arm: Make LPAE feature imply V7MP target-arm: Use tuple list to sync cp regs with KVM target-arm: Reinitialize all KVM VCPU registers on reset target-arm: Initialize cpreg list from KVM when using KVM target-arm: Convert TCG to using (index,value) list for cp migration target-arm: mark up cpregs for no-migrate or raw access target-arm: Add raw_readfn and raw_writefn to ARMCPRegInfo target-arm: Allow special cpregs to have flags set Message-id: 1372181592-32170-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'cohuck/virtio-ccw-upstr' into stagingAnthony Liguori6-1/+252
# By Cornelia Huck (2) and Christian Borntraeger (1) # Via Cornelia Huck * cohuck/virtio-ccw-upstr: virtio-ccw: Wire up guest and host notifies. virtio-ccw: Wire up ioeventfd. s390/virtio-ccw: Fix virtio reset Message-id: 1372177538-9812-1-git-send-email-cornelia.huck@de.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25Merge remote-tracking branch 'sstabellini/xen-20130625' into stagingAnthony Liguori4-18/+26
# By Paul Durrant (2) and Stefano Stabellini (1) # Via Stefano Stabellini * sstabellini/xen-20130625: Move hardcoded initialization of xen-platform device. Allow use of pc machine type (accel=xen) for Xen HVM domains. Revert "xen: start PCI hole at 0xe0000000 (same as pc_init1 and qemu-xen-traditional)" Message-id: alpine.DEB.2.02.1306251323220.4782@kaball.uk.xensource.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-06-25nand: Don't inherit from SysbusPeter Crosthwaite1-3/+4
Nand chips are not sysbus devices - they do not have any sense of MMIO, nor interrupts. Re-parent to TYPE_DEVICE accordingly. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25block/nand: Convert Sysbus::init to Device::realizePeter Crosthwaite1-9/+7
The prescribed transition from Sysbus::init function to a Device::realize. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25block/nand: QOM casting sweepPeter Crosthwaite1-9/+16
Define and use standard QOM cast macro. Remove usages of DO_UPCAST and direct -> style casting. Cc: afaerber@suse.de Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25i.MX31: Fix PRCS bit testStefan Weil1-1/+1
cppcheck detected a condition which was always false. According to the MCIMX31 Reference Manual, the PRCS bits have to be 01 to select the Frequency Pre-Multiplier (FPM). PRCS uses bits 1 and 2, so we have to test for 2. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Message-id: 1370810662-32320-1-git-send-email-sw@weilnetz.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25arm/boot: Free dtb blob memory after usePeter Maydell1-5/+15
The dtb blob returned by load_device_tree() is in memory allocated with g_malloc(). Free it accordingly once we have copied its contents into the guest memory. To make this easy, we need also to clean up the error handling in load_dtb() so that we consistently handle errors in the same way (by printing a message and then returning -1, rather than either plowing on or exiting immediately). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1371209256-11408-1-git-send-email-peter.maydell@linaro.org
2013-06-25i.MX: Rework functions/types name and use new style initializationJean-Christophe DUBOIS1-87/+84
* use dynamic cast whenever possible * Change function names to some more meaningful prefix * Change type names to a more meaningful one * use new style device initialization Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-3-git-send-email-jcd@tribudubois.net Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25i.MX: Implement a more complete version of the GPT timer.Jean-Christophe DUBOIS1-174/+269
* implement compare 1 2 and 3 registers * simplify Debug printf Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net> Message-id: 1369898943-1993-2-git-send-email-jcd@tribudubois.net Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25ARM: Allow dumping of device treeJohn Rigby1-0/+1
By calling qemu_devtree_dumpdtb near the end of load_dtb. Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Make LPAE feature imply V7MPPeter Maydell1-1/+1
The v7 ARM ARM specifies that the Large Physical Address Extension requires implementation of the Multiprocessing Extensions, so make our LPAE feature imply V7MP rather than specifying both in the A15 CPU initfn. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de> Message-id: 1371127899-10364-1-git-send-email-peter.maydell@linaro.org
2013-06-25target-arm: Use tuple list to sync cp regs with KVMPeter Maydell1-70/+33
Use the tuple list of cp registers for syncing KVM state to QEMU, rather than only syncing a very minimal set by hand. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Reinitialize all KVM VCPU registers on resetPeter Maydell2-1/+21
Since the ARM KVM API doesn't include a "reset this VCPU" ioctl, we have to capture the initial values of every register it knows about so that we can reset the VCPU by feeding those values back again. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Initialize cpreg list from KVM when using KVMPeter Maydell5-6/+245
When using KVM, use the kernel's initial state to set up the cpreg list, and sync to and from the kernel when doing migration. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Convert TCG to using (index,value) list for cp migrationPeter Maydell6-47/+341
Convert the TCG ARM target to using an (index,value) list for migrating coprocessors. The primary benefit of the (index,value) list is for passing state between KVM and QEMU, but it works for TCG-to-TCG migration as well and is a useful self-contained first step. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: mark up cpregs for no-migrate or raw accessPeter Maydell1-46/+94
Mark up coprocessor register definitions to add raw access functions or mark the register as non-migratable where necessary. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Add raw_readfn and raw_writefn to ARMCPRegInfoPeter Maydell2-1/+30
For reading and writing register values from the kernel for KVM, we need to provide accessor functions which are guaranteed to succeed and don't impose access checks, mask out unwritable bits, etc. Define new fields raw_readfn and raw_writefn for this purpose; these only need to be provided if there is a readfn or writefn already and it is not suitable. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25target-arm: Allow special cpregs to have flags setPeter Maydell1-1/+1
Relax the "is this a valid ARMCPRegInfo type value?" check to permit "special" cpregs to have flags other than ARM_CP_SPECIAL set. At the moment none of the other flags are relevant for special regs, but the migration related flag we're about to introduce can apply here too. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25virtio-ccw: Wire up guest and host notifies.Cornelia Huck2-0/+89
Guest and host notifiers are needed by vhost. We use ioeventfds for the guest notifiers, but need to fall back on qemu injecting interrupts for the host notifiers. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25virtio-ccw: Wire up ioeventfd.Cornelia Huck6-1/+161
On hosts that support ioeventfd, make use of it for host-to-guest notifications via diagnose 500. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2013-06-25s390/virtio-ccw: Fix virtio resetChristian Borntraeger1-0/+2
On virtio reset we must reset the indicator to avoid stale interrupts, e.g. after a reset. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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