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* snapshot: create bdrv_all_create_snapshot helperDenis V. Lunev2015-11-191-0/+4
| | | | | | | | | | | | | | to create snapshot for all loaded block drivers. The patch also ensures proper locking. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* snapshot: create bdrv_all_find_snapshot helperDenis V. Lunev2015-11-191-0/+1
| | | | | | | | | | | | | | | | | to check that snapshot is available for all loaded block drivers. The check bs != bs1 in hmp_info_snapshots is an optimization. The check for availability of this snapshot will return always true as the list of snapshots was collected from that image. The patch also ensures proper locking. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* snapshot: create bdrv_all_goto_snapshot helperDenis V. Lunev2015-11-191-0/+1
| | | | | | | | | | | | | | | to switch to snapshot on all loaded block drivers. The patch also ensures proper locking. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* snapshot: create bdrv_all_delete_snapshot helperDenis V. Lunev2015-11-191-0/+2
| | | | | | | | | | | | | | to delete snapshots from all loaded block drivers. The patch also ensures proper locking. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* snapshot: return error code from bdrv_snapshot_delete_by_id_or_nameDenis V. Lunev2015-11-191-3/+3
| | | | | | | | | | | | this will make code better in the next patch Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* snapshot: create helper to test that block drivers supports snapshotsDenis V. Lunev2015-11-191-0/+8
| | | | | | | | | | | | | The patch enforces proper locking for this operation. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into stagingPeter Maydell2015-11-181-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | # gpg: Signature made Tue 17 Nov 2015 20:06:58 GMT using RSA key ID AAFC390E # gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" * remotes/jnsnow/tags/ide-pull-request: ide: enable buffered requests for PIO read requests ide: enable buffered requests for ATAPI devices ide: orphan all buffered requests on DMA cancel ide: add support for IDEBufferedRequest block: add blk_abort_aio_request ide/atapi: make PIO read requests async Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * block: add blk_abort_aio_requestPeter Lieven2015-11-171-0/+3
| | | | | | | | | | | | | | Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 1447345846-15624-3-git-send-email-pl@kamp.de Signed-off-by: John Snow <jsnow@redhat.com>
* | Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into ↵Peter Maydell2015-11-171-0/+17
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging X86 fixes, 2015-11-17 Two X86 fixes, hopefully in time for -rc1. # gpg: Signature made Tue 17 Nov 2015 19:06:53 GMT using RSA key ID 984DC5A6 # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" * remotes/ehabkost/tags/x86-pull-request: target-i386: Disable rdtscp on Opteron_G* CPU models target-i386: Fix mulx for identical target regs Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * target-i386: Disable rdtscp on Opteron_G* CPU modelsEduardo Habkost2015-11-171-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | KVM can't virtualize rdtscp on AMD CPUs yet, so there's no point in enabling it by default on AMD CPU models, as all we are getting are confused users because of the "host doesn't support requested feature" warnings. Disable rdtscp on Opteron_G* models, but keep compatibility on pc-*-2.4 and older (just in case there are people are doing funny stuff using AMD CPU models on Intel hosts). Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
* | Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-20151116-1' into ↵Peter Maydell2015-11-171-0/+43
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging vnc: buffer code improvements, bugfixes. # gpg: Signature made Mon 16 Nov 2015 17:20:02 GMT using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-vnc-20151116-1: vnc: fix mismerge buffer: allow a buffer to shrink gracefully buffer: factor out buffer_adj_size buffer: factor out buffer_req_size vnc: recycle empty vs->output buffer vnc: fix local state init vnc: only alloc server surface with clients connected vnc: use vnc_{width,height} in vnc_set_area_dirty vnc: factor out vnc_update_server_surface vnc: add vnc_width+vnc_height helpers vnc: zap dead code vnc-jobs: move buffer reset, use new buffer move vnc: kill jobs queue buffer vnc: attach names to buffers buffer: add tracing buffer: add buffer_shrink buffer: add buffer_move buffer: add buffer_move_empty buffer: add buffer_init buffer: make the Buffer capacity increase in powers of two Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * buffer: allow a buffer to shrink gracefullyPeter Lieven2015-11-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | the idea behind this patch is to allow the buffer to shrink, but make this a seldom operation. The buffers average size is measured exponentionally smoothed with am alpha of 1/128. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1446203414-4013-20-git-send-email-kraxel@redhat.com
| * buffer: add buffer_shrinkGerd Hoffmann2015-11-051-0/+10
| | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Peter Lieven <pl@kamp.de> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1446203414-4013-6-git-send-email-kraxel@redhat.com
| * buffer: add buffer_moveGerd Hoffmann2015-11-051-0/+10
| | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Peter Lieven <pl@kamp.de> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1446203414-4013-5-git-send-email-kraxel@redhat.com
| * buffer: add buffer_move_emptyGerd Hoffmann2015-11-051-0/+10
| | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Peter Lieven <pl@kamp.de> Reviewed-by: Daniel Berrange <berrange@redhat.com> Message-id: 1446203414-4013-4-git-send-email-kraxel@redhat.com
| * buffer: add buffer_initGerd Hoffmann2015-11-051-0/+12
| | | | | | | | | | | | | | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Peter Lieven <pl@kamp.de> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1446203414-4013-3-git-send-email-kraxel@redhat.com
* | hw/misc: Add support for ADC controller in Xilinx Zynq 7000Guenter Roeck2015-11-121-0/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the Xilinx XADC core used in Zynq 7000. References: - Zynq-7000 All Programmable SoC Technical Reference Manual - 7 Series FPGAs and Zynq-7000 All Programmable SoC XADC Dual 12-Bit 1 MSPS Analog-to-Digital Converter Tested with Linux using QEMU machine xilinx-zynq-a9 with devicetree files zynq-zc702.dtb and zynq-zc706.dtb, and kernel configuration multi_v7_defconfig. Reviewed-by: Alistair Francis <alistair.francis@xilinx.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> [ PC changes: * Changed macro names to match TRM where possible * Made programmers model macro scheme consistent * Dropped XADC_ZYNQ_ prefix on local macros * Fix ALM field width * Update threshold-comparison interrupts in _update_ints() * factored out DFIFO pushes into helper. Renamed to "push/pop" * Changed xadc_reg to 10 bits and added OOB check. * Reduced scope of MCTL reset to just stop channel coms. * Added dummy read data to write commands * Changed _ to - seperators in string names and filenames * Dropped ------------ in header comment * Catchall'ed _update_ints() in _write handler. * Minor whitespace changes. * Use ZYNQ_XADC_FIFO_DEPTH instead of ARRAY_SIZE() ] Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* | Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20151112' ↵Peter Maydell2015-11-121-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into staging migration/next for 20151112 # gpg: Signature made Thu 12 Nov 2015 16:56:44 GMT using RSA key ID 5872D723 # gpg: Good signature from "Juan Quintela <quintela@redhat.com>" # gpg: aka "Juan Quintela <quintela@trasno.org>" * remotes/juanquintela/tags/migration/20151112: migration_init: Fix lock initialisation/make it explicit migrate-start-postcopy: Improve text Postcopy: Fix TP!=HP zero case Finish non-postcopiable iterative devices before package migration: Make 32bit linux compile with RDMA migration: print ram_addr_t as RAM_ADDR_FMT not %zx Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | Finish non-postcopiable iterative devices before packageDr. David Alan Gilbert2015-11-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Where we have iterable, but non-postcopiable devices (e.g. htab or block migration), complete them before forming the 'package' but with the CPUs stopped. This stops them filling up the package. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
* | | Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell2015-11-125-11/+207
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Block layer patches (rebased Stefan's pull request) # gpg: Signature made Thu 12 Nov 2015 15:34:16 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (43 commits) block: Update copyright of the accounting code scsi-disk: Account for failed operations macio: Account for failed operations ide: Account for failed and invalid operations atapi: Account for failed and invalid operations xen_disk: Account for failed and invalid operations virtio-blk: Account for failed and invalid operations nvme: Account for failed and invalid operations iotests: Add test for the block device statistics block: Use QEMU_CLOCK_VIRTUAL for the accounting code in qtest mode qemu-io: Account for failed, invalid and flush operations block: New option to define the intervals for collecting I/O statistics block: Add average I/O queue depth to BlockDeviceTimedStats block: Compute minimum, maximum and average I/O latencies block: Allow configuring whether to account failed and invalid ops block: Add statistics for failed and invalid I/O operations block: Add idle_time_ns to BlockDeviceStats util: Infrastructure for computing recent averages block: define 'clock_type' for the accounting code ide: Account for write operations correctly ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | block: Update copyright of the accounting codeAlberto Garcia2015-11-121-0/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: 80a2278e3ec2dafd5daab20a7cb2d6a9b83371e4.1446044838.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add average I/O queue depth to BlockDeviceTimedStatsAlberto Garcia2015-11-122-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds two new fields to BlockDeviceTimedStats that track the average number of pending read and write requests for a block device. The values are calculated for the period of time defined for that interval. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: fd31fef53e2714f2f30d59ed58ca2f67ec9ab926.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Compute minimum, maximum and average I/O latenciesAlberto Garcia2015-11-121-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch keeps track of the minimum, maximum and average latencies of I/O operations during a certain interval of time. The values are exposed in the BlockDeviceTimedStats structure. An option to define the intervals to collect these statistics will be added in a separate patch. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: c7382dc89622c64f918d09f32815827772628f8e.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Allow configuring whether to account failed and invalid opsAlberto Garcia2015-11-121-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds two options, "stats-account-invalid" and "stats-account-failed", that can be used to decide whether invalid and failed I/O operations must be used when collecting statistics for latency and last access time. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: ebc7e5966511a342cad428a392c5f5ad56b15213.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add statistics for failed and invalid I/O operationsAlberto Garcia2015-11-121-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the block_acct_failed() and block_acct_invalid() functions to allow keeping track of failed and invalid I/O operations. The number of failed and invalid operations is exposed in BlockDeviceStats. We don't keep track of the time spent on invalid operations because they are cancelled immediately when they are started. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: a7256ccb883a86356b1c6c46b5a29ed5448546a5.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add idle_time_ns to BlockDeviceStatsAlberto Garcia2015-11-121-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the new field 'idle_time_ns' to the BlockDeviceStats structure, indicating the time that has passed since the previous I/O operation. It also adds the block_acct_idle_time_ns() call, to ensure that all references to the clock type used for accounting are in the same place. This will later allow us to use a different clock for iotests. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: 7d8cfcf931453e1a2443e6626e8c1edc347c7c8a.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | util: Infrastructure for computing recent averagesAlberto Garcia2015-11-121-0/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This module computes the average of a set of values within a time window, keeping also track of the minimum and maximum values. In order to produce more accurate results it works internally by creating two time windows of the same period, offsetted by half of that period. Values are accounted on both windows and the data is always returned from the oldest one. [Add missing util/replay.o to test-timed-average dependencies to fix the build. --Stefan] Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: 201b09c21bbc9c329779d2b2365ee2b9c80dceeb.1446044837.git.berto@igalia.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add BlockJobTxn support to backup_runJohn Snow2015-11-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow a BlockJobTxn to be passed into backup_run, which will allow the job to join a transactional group if present. Propagate this new parameter outward into new QMP helper functions in blockdev.c to allow transaction commands to pass forward their BlockJobTxn object in a forthcoming patch. [split up from a patch originally by Stefan and Fam. --js] Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-12-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add block job transactionsFam Zheng2015-11-122-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes block jobs must execute as a transaction group. Finishing jobs wait until all other jobs are ready to complete successfully. Failure or cancellation of one job cancels the other jobs in the group. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-10-git-send-email-jsnow@redhat.com [Rewrite the implementation which is now contained in block_job_completed. --Fam] Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | blockjob: Add "completed" and "ret" in BlockJobFam Zheng2015-11-121-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They are set when block_job_completed is called. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-8-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | blockjob: Add .commit and .abort block job actionsFam Zheng2015-11-121-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-7-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | blockjob: Introduce reference count and fix reference to job->bsFam Zheng2015-11-121-3/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add reference count to block job, meanwhile move the ownership of the reference to job->bs from the caller (which is released in two completion callbacks) to the block job itself. It is necessary for block_job_complete_sync to work, because block job shouldn't live longer than its bs, as asserted in bdrv_delete. Now block_job_complete_sync can be simplified. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Message-id: 1446765200-3054-6-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | qed: Implement .bdrv_drainFam Zheng2015-11-122-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "need_check_timer" is used to clear the "NEED_CHECK" flag in the image header after a grace period once metadata update has finished. In compliance to the bdrv_drain semantics we should make sure it remains deleted once .bdrv_drain is called. We cannot reuse qed_need_check_timer_cb because here it doesn't satisfy the assertion. Do the "plug" and "flush" calls manually. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-10-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Introduce BlockDriver.bdrv_drain callbackFam Zheng2015-11-121-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers can have internal request sources that generate IO, like the need_check_timer in QED. Since we want quiesced periods that contain nested event loops in block layer, we need to have a way to disable such event sources. Block drivers must implement the "bdrv_drain" callback if it has any internal sources that can generate I/O activity, like a timer or a worker thread (even in a library) that can schedule QEMUBH in an asynchronous callback. Update the comments of bdrv_drain and bdrv_drained_begin accordingly. Like bdrv_requests_pending(), we should consider all the children of bs. Before, the while loop just works, as bdrv_requests_pending() already tracks its children; now we mustn't miss the callback, so recurse down explicitly. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1447064214-29930-9-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Drop BlockDriver.bdrv_ioctlFam Zheng2015-11-121-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now the callback is not used any more, drop the field along with all implementations in block drivers, which are iscsi and raw. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-8-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add ioctl parameter fields to BlockRequestFam Zheng2015-11-121-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The two fields that will be used by ioctl handling code later are added as union, because it's used exclusively by ioctl code which dosn't need the four fields in the other struct of the union. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-6-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| * | block: Add more types for tracked requestFam Zheng2015-11-121-1/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We'll track more request types besides read and write, change the boolean field to an enum. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-2-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | | Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell2015-11-123-1/+20
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | virtio, vhost: fixes for 2.5 This fixes a performance regression with virtio 1, and makes device stop/start more robust for vhost-user. virtio devices on pcie bus now have pcie and pm capability, as required by the PCI Express spec. migration now works better with virtio 9p. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Thu 12 Nov 2015 14:40:42 GMT using RSA key ID D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" * remotes/mst/tags/for_upstream: virtio-9p: add savem handlers hw/virtio: Add PCIe capability to virtio devices vhost: send SET_VRING_ENABLE at start/stop vhost: rename RESET_DEVICE backto RESET_OWNER vhost-user: modify SET_LOG_BASE to pass mmap size and offset virtio-pci: unbreak queue_enable read virtio-pci: introduce pio notification capability for modern device virtio-pci: use zero length mmio eventfd for 1.0 notification cap when possible KVM: add support for any length io eventfd memory: don't try to adjust endianness for zero length eventfd virtio-pci: fix 1.0 virtqueue migration Conflicts: include/hw/compat.h [Fixed a trivial merge conflict in compat.h] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | hw/virtio: Add PCIe capability to virtio devicesMarcel Apfelbaum2015-11-121-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The virtio devices are converted to PCI-Express if they are plugged into a PCI-Express bus and the 'modern' protocol is enabled. Devices plugged directly into the Root Complex as Integrated Endpoints remain PCI. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * | KVM: add support for any length io eventfdJason Wang2015-11-121-0/+8
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
| * | virtio-pci: fix 1.0 virtqueue migrationJason Wang2015-11-122-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We don't migrate the followings fields for virtio-pci: uint32_t dfselect; uint32_t gfselect; uint32_t guest_features[2]; struct { uint16_t num; bool enabled; uint32_t desc[2]; uint32_t avail[2]; uint32_t used[2]; } vqs[VIRTIO_QUEUE_MAX]; This will confuse driver if migrating during initialization. Solves this issue by: - introduce transport specific callbacks to load and store extra virtqueue states. - add a new subsection for virtio to migrate transport specific modern device state. - implement pci specific callbacks. - add a new property for virtio-pci for whether or not to migrate extra state. - compat the migration for 2.4 and elder machine types Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | | Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into ↵Peter Maydell2015-11-121-1/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | staging # gpg: Signature made Thu 12 Nov 2015 08:01:55 GMT using RSA key ID 398D6211 # gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211 * remotes/jasowang/tags/net-pull-request: net: netmap: use error_setg() helpers in place of error_report() net: netmap: Fix compilation issue e1000: Introducing backward compatibility command line parameter e1000: Implementing various counters e1000: Fixing the packet address filtering procedure e1000: Fixing the received/transmitted octets' counters e1000: Fixing the received/transmitted packets' counters e1000: Trivial implementation of various MAC registers e1000: Introduced an array to control the access to the MAC registers e1000: Add support for migrating the entire MAC registers' array e1000: Cosmetic and alignment fixes slirp: Fix type casts and format strings in debug code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | | e1000: Introducing backward compatibility command line parameterLeonid Bloch2015-11-121-1/+5
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This follows the previous patches, where support for migrating the entire MAC registers' array, and some new MAC registers were introduced. This patch introduces the e1000-specific boolean parameter "extra_mac_registers", which is on by default. Setting it to off will enable migration to older versions of QEMU, but will disable the read and write access to the new registers, that were introduced since adding the ability to migrate the entire MAC array. Example for usage to enable backward compatibility and to disable the new MAC registers: qemu-system-x86_64 -device e1000,extra_mac_registers=off,... ... As mentioned above, the default value is "on". Signed-off-by: Leonid Bloch <leonid.bloch@ravellosystems.com> Signed-off-by: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
* | | monitor/target-ppc: Define target_get_monitor_defAlexey Kardashevskiy2015-11-121-0/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the moment get_monitor_def() returns only registers from statically defined monitor_defs array. However there is a lot of BOOK3S SPRs which are not in the list and cannot be printed from the monitor. This adds a new target platform hook - target_get_monitor_def(). The hook is called if a register was not found in the static array returned by the target_monitor_defs() hook. The hook is only defined for POWERPC, it returns registered SPRs and fails on unregistered ones providing the user with information on what is actually supported on the running CPU. The register value is saved as uint64_t as it is the biggest supported register size; target_ulong cannot be used because of the stub - it is in a "common" code and cannot include "cpu.h", etc; this is also why the hook prototype is redefined in the stub instead of being included from some header. This replaces static descriptors for GPRs, FPRs, SRs with a helper which looks for a value in a corresponding array in the CPUPPCState. The immediate effect is that all 32 SRs can be printed now (instead of 16); later this can be reused for VSX or TM registers. This replaces callbacks for MSR and XER with static descriptors in monitor_defs as they are stored in CPUPPCState. While we are here, this adds "cr" as a synonym of "ccr". Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* | Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20151111' into stagingPeter Maydell2015-11-111-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hopefully last big batch of s390x patches, including: - bugfixes for LE host and for pci translation - MAINTAINERS update - hugetlbfs enablement (kernel patches pending) - boot from El Torito iso images on virtio-blk (boot from scsi pending) - cleanup in the ipl device code There's also a helper function for resetting busless devices in the qdev core in there. # gpg: Signature made Wed 11 Nov 2015 17:49:58 GMT using RSA key ID C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" * remotes/cohuck/tags/s390x-20151111: s390: deprecate the non-ccw machine in 2.5 s390x/ipl: switch error reporting to error_setg s390x/ipl: clean up qom definitions and turn into TYPE_DEVICE qdev: provide qdev_reset_all_fn() pc-bios/s390-ccw: rebuild image pc-bios/s390-ccw: El Torito 16-bit boot image size field workaround pc-bios/s390-ccw: El Torito s390x boot entry check pc-bios/s390-ccw: ISO-9660 El Torito boot implementation pc-bios/s390-ccw: Always adjust virtio sector count s390x/kvm: don't enable CMMA when hugetlbfs will be used s390x: switch to memory_region_allocate_system_memory MAINTAINERS: update virtio-ccw/s390 git tree MAINTAINERS: update s390 file patterns s390x/pci : fix up s390 pci iommu translation function s390x/css: sense data endianness Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
| * | qdev: provide qdev_reset_all_fn()David Hildenbrand2015-11-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For TYPE_DEVICE, the dc->reset() function is not called on system resets yet. Until that is changed, we have to manually register a reset handler. Let's provide qdev_reset_all_fn(), that can directly be used - just like the reset handler that is already available for qbus. Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
* | | block: Add blk_get_refcnt()Alberto Garcia2015-11-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function returns the reference count of a given BlockBackend. For convenience, it returns 0 if the BlockBackend pointer is NULL. Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: dfdd8a17dbe3288842840636d2cfe5bb895abcb0.1446475331.git.berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>
* | | throttle: Use bs->throttle_state instead of bs->io_limits_enabledAlberto Garcia2015-11-111-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two ways to check for I/O limits in a BlockDriverState: - bs->throttle_state: if this pointer is not NULL, it means that this BDS is member of a throttling group, its ThrottleTimers structure has been initialized and its I/O limits are ready to be applied. - bs->io_limits_enabled: if true it means that the throttle_state pointer is valid _and_ the limits are currently enabled. The latter is used in several places to check whether a BDS has I/O limits configured, but what it really checks is whether requests are being throttled or not. For example, io_limits_enabled can be temporarily set to false in cases like bdrv_read_unthrottled() without otherwise touching the throtting configuration of that BDS. This patch replaces bs->io_limits_enabled with bs->throttle_state in all cases where what we really want to check is the existence of I/O limits, not whether they are currently enabled or not. Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | | qmp: Introduce blockdev-change-mediumMax Reitz2015-11-111-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce a new QMP command 'blockdev-change-medium' which is intended to replace the 'change' command for block devices. The existing function qmp_change_blockdev() is accordingly renamed to qmp_blockdev_change_medium(). Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* | | block: Add functions for inheriting a BBRSMax Reitz2015-11-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to open a BDS which inherits a BB's root state, blk_get_open_flags_from_root_state() is used to inquire the flags to be passed to bdrv_open(), and blk_apply_root_state() is used to apply the remaining state after the BDS has been opened. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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