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2018-07-13docs: Grammar and spelling fixesVille Skyttä18-21/+22
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20180612065150.21110-1-ville.skytta@iki.fi Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell12-35/+226
Block layer patches: - file-posix: Check correct file type (regular file for 'file', character or block device for 'host_device'/'host_cdrom') - scsi-disk: Block Device Characteristics emulation fix - qemu-img: Consider required alignment for sparse area detection - Documentation and test improvements # gpg: Signature made Thu 12 Jul 2018 17:29:17 BST # gpg: using RSA key 7F09B272C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * remotes/kevin/tags/for-upstream: qemu-img: align result of is_allocated_sectors scsi-disk: Block Device Characteristics emulation fix iotests: add test 226 for file driver types file-posix: specify expected filetypes qemu-img: Document copy offloading implications with -S and -c iotests: nbd: Stop qemu-nbd before remaking image iotests: 153: Fix dead code Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12qemu-img: align result of is_allocated_sectorsPeter Lieven2-16/+46
We currently don't enforce that the sparse segments we detect during convert are aligned. This leads to unnecessary and costly read-modify-write cycles either internally in Qemu or in the background on the storage device as nearly all modern filesystems or hardware have a 4k alignment internally. This patch modifies is_allocated_sectors so that its *pnum result will always end at an alignment boundary. This way all requests will end at an alignment boundary. The start of all requests will also be aligned as long as the results of get_block_status do not lead to an unaligned offset. The number of RMW cycles when converting an example image [1] to a raw device that has 4k sector size is about 4600 4k read requests to perform a total of about 15000 write requests. With this path the additional 4600 read requests are eliminated while the number of total write requests stays constant. [1] https://cloud-images.ubuntu.com/releases/16.04/release/ubuntu-16.04-server-cloudimg-amd64-disk1.vmdk Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12scsi-disk: Block Device Characteristics emulation fixDaniel Henrique Barboza1-3/+4
The current BDC VPD page (page 0xb1) is too short. This can be seen running sg_utils: $ sg_vpd --page=bdc /dev/sda Block device characteristics VPD page (SBC): Block device characteristics VPD page length too short=8 By the SCSI spec, the expected size of the SBC page is 0x40. There is no telling how the guest will behave with a shorter message - it can ignore it, or worse, make (wrong) assumptions. This patch fixes the emulation by setting the size to 0x40. This is the output of the previous sg_vpd command after applying it: $ sg_vpd --page=bdc /dev/sda -v inquiry cdb: 12 01 b1 00 fc 00 Block device characteristics VPD page (SBC): [PQual=0 Peripheral device type: disk] Medium rotation rate is not reported Product type: Not specified WABEREQ=0 WACEREQ=0 Nominal form factor not reported FUAB=0 VBULS=0 To improve readability, this patch also adds the VBULS value explictly and add comments on the existing fields we're setting. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12iotests: add test 226 for file driver typesJohn Snow3-0/+93
Test that we're rejecting what we ought to for file, host_driver and host_cdrom drivers. Test that we're seeing the deprecated message for block and chardevs on the file driver. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12file-posix: specify expected filetypesJohn Snow2-8/+37
Adjust each caller of raw_open_common to specify if they are expecting host and character devices or not. Tighten expectations of file types upon open in the common code and refuse types that are not expected. This has two effects: (1) Character and block devices are now considered deprecated for the 'file' driver, which expects only S_IFREG, and (2) no file-posix driver (file, host_cdrom, or host_device) can open directories now. I don't think there's a legitimate reason to open directories as if they were files. This prevents QEMU from opening and attempting to probe a directory inode, which can break in exciting ways. One of those ways is lseek on ext4/xfs, which will return 0x7fffffffffffffff as the file size instead of EISDIR. This can coax QEMU into responding with a confusing "file too big" instead of "Hey, that's not a file". See: https://bugs.launchpad.net/qemu/+bug/1739304/ Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12qemu-img: Document copy offloading implications with -S and -cFam Zheng1-2/+4
Explicitly enabling zero detection or compression suppresses copy offloading during convert. Document it. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12iotests: nbd: Stop qemu-nbd before remaking imageFam Zheng1-6/+15
197 is one example where _make_test_img is used twice without stopping the NBD server in between. An error will occur like this: @@ -26,9 +26,13 @@ === Partial final cluster === +qemu-img: TEST_DIR/t.IMGFMT: Failed to get "resize" lock +Is another process using the image? Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1024 +Failed to find an available port: Address already in use read 1024/1024 bytes at offset 0 Patch _make_test_img to stop the old qemu-nbd before starting a new one, which fixes this problem, and similarly 215. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12iotests: 153: Fix dead codeFam Zheng2-0/+27
This step was left behind my mistake. As suggested by the echoed text, the intention was to test two devices with the same image, with different options. The behavior should be the same as two QEMU processes. Complete it. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-12ui/cocoa.m: replace scrollingDeltaY with deltaYJohn Arbuckle1-7/+13
The NSEvent class method scrollingDeltaY is available for Mac OS 10.7 and newer. Since QEMU supports Mac OS 10.5 and up, we need to be using a method that is available on these version of Mac OS X. The deltaY method is a method that does almost the same thing as scrollingDeltaY and is available on Mac OS 10.5 and up. So we can replace scrollingDeltaY with deltaY. We only check deltaY's value if it is not zero because zero means that the scrolling increment was sufficiently fine that it was only reported in scrollingDeltaY, or that the scrolling was horizontal. Signed-off-by: John Arbuckle <programmingkidx@gmail.com> Message-id: 20180709150235.7573-1-programmingkidx@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> [PMM: tweak commit message and comment a little] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20180712' into ↵Peter Maydell1-2/+10
staging pull-seccomp-20180712 # gpg: Signature made Thu 12 Jul 2018 13:55:34 BST # gpg: using RSA key DF32E7C0F0FFF9A2 # gpg: Good signature from "Eduardo Otubo (Senior Software Engineer) <otubo@redhat.com>" # Primary key fingerprint: D67E 1B50 9374 86B4 0723 DBAB DF32 E7C0 F0FF F9A2 * remotes/otubo/tags/pull-seccomp-20180712: seccomp: allow sched_setscheduler() with SCHED_IDLE policy Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12seccomp: allow sched_setscheduler() with SCHED_IDLE policyMarc-André Lureau1-2/+10
Current and upcoming mesa releases rely on a shader disk cash. It uses a thread job queue with low priority, set with sched_setscheduler(SCHED_IDLE). However, that syscall is rejected by the "resourcecontrol" seccomp qemu filter. Since it should be safe to allow lowering thread priority, let's allow scheduling thread to idle policy. Related to: https://bugzilla.redhat.com/show_bug.cgi?id=1594456 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eduardo Otubo <otubo@redhat.com>
2018-07-12Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20180712' into stagingPeter Maydell3-6/+6
- fix confusion around sizes in storage attribute migration - remove NULL check on error_propagate() in virtio-ccw # gpg: Signature made Thu 12 Jul 2018 10:27:28 BST # gpg: using RSA key DECF6B93C6F02FAF # gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" # gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" # gpg: aka "Cornelia Huck <cohuck@kernel.org>" # gpg: aka "Cornelia Huck <cohuck@redhat.com>" # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * remotes/cohuck/tags/s390x-20180712: error: Remove NULL checks on error_propagate() calls s390x/storage attributes: fix CMMA_BLOCK_SIZE usage Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12Merge remote-tracking branch 'remotes/awilliam/tags/vfio-fixes-20180711.1' ↵Peter Maydell1-1/+0
into staging VFIO fixes 2018-07-11 - Avoid RAMBlock segfault in option ROM teardown for vfio-pci devices (Cédric Le Goater) # gpg: Signature made Wed 11 Jul 2018 20:44:44 BST # gpg: using RSA key 239B9B6E3BB08B22 # gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>" # gpg: aka "Alex Williamson <alex@shazbot.org>" # gpg: aka "Alex Williamson <alwillia@redhat.com>" # gpg: aka "Alex Williamson <alex.l.williamson@gmail.com>" # Primary key fingerprint: 42F6 C04E 540B D1A9 9E7B 8A90 239B 9B6E 3BB0 8B22 * remotes/awilliam/tags/vfio-fixes-20180711.1: vfio/pci: do not set the PCIDevice 'has_rom' attribute Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-12Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2018-07-11' ↵Peter Maydell1-0/+1
into staging Monitor patches for 2018-07-11 # gpg: Signature made Wed 11 Jul 2018 20:12:31 BST # gpg: using RSA key 3870B400EB918653 # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-monitor-2018-07-11: monitor: fix double-free of request error Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-11vfio/pci: do not set the PCIDevice 'has_rom' attributeCédric Le Goater1-1/+0
PCI devices needing a ROM allocate an optional MemoryRegion with pci_add_option_rom(). pci_del_option_rom() does the cleanup when the device is destroyed. The only action taken by this routine is to call vmstate_unregister_ram() which clears the id string of the optional ROM RAMBlock and now, also flags the RAMBlock as non-migratable. This was recently added by commit b895de502717 ("migration: discard non-migratable RAMBlocks"), . VFIO devices do their own loading of the PCI option ROM in vfio_pci_size_rom(). The memory region is switched to an I/O region and the PCI attribute 'has_rom' is set but the RAMBlock of the ROM region is not allocated. When the associated PCI device is deleted, pci_del_option_rom() calls vmstate_unregister_ram() which tries to flag a NULL RAMBlock, leading to a SEGV. It seems that 'has_rom' was set to have memory_region_destroy() called, but since commit 469b046ead06 ("memory: remove memory_region_destroy") this is not necessary anymore as the MemoryRegion is freed automagically. Remove the PCIDevice 'has_rom' attribute setting in vfio. Fixes: b895de502717 ("migration: discard non-migratable RAMBlocks") Signed-off-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-07-11monitor: fix double-free of request errorMarc-André Lureau1-0/+1
qmp_error_response() will free the given error. Fix double-free in later qmp_request_free(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20180705164201.9853-1-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Fixes: 1cc37471525d03f963bc71d724f0dc9eab888fc1 Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-07-11error: Remove NULL checks on error_propagate() callsPhilippe Mathieu-Daudé1-3/+1
Patch created mechanically by rerunning: $ spatch --sp-file scripts/coccinelle/error_propagate_null.cocci \ --macro-file scripts/cocci-macro-file.h \ --dir . --in-place Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20180705155811.20366-3-f4bug@amsat.org> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-07-11s390x/storage attributes: fix CMMA_BLOCK_SIZE usageClaudio Imbrenda2-3/+5
The macro CMMA_BLOCK_SIZE was defined but not used, and a hardcoded value was instead used in the code. This patch fixes the value of CMMA_BLOCK_SIZE and uses it in the appropriate place in the code, and fixes another case of hardcoded value in the KVM backend, replacing it with the more appropriate constant KVM_S390_CMMA_SIZE_MAX. Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com> Message-Id: <1530787170-3101-1-git-send-email-imbrenda@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-07-10Update version for v3.0.0-rc0 releasev3.0.0-rc0Peter Maydell1-1/+1
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-10Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell42-177/+647
Block layer patches: - Copy offloading fixes for when the copy increases the image size - Temporary revert of the removal of deprecated -drive options - Fix request serialisation in the image fleecing scenario - Fix copy-on-read crash with unaligned image size - Fix another drain crash # gpg: Signature made Tue 10 Jul 2018 16:37:52 BST # gpg: using RSA key 7F09B272C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" # Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6 * remotes/kevin/tags/for-upstream: (24 commits) block: Use common write req handling in truncate block: Fix bdrv_co_truncate overlap check block: Use common req handling in copy offloading block: Use common req handling for discard block: Fix handling of image enlarging write block: Extract common write req handling block: Use uint64_t for BdrvTrackedRequest byte fields block: Use BdrvChild to discard block: Add copy offloading trace points block: Prefix file driver trace points with "file_" Revert "block: Remove deprecated -drive geometry options" Revert "block: Remove deprecated -drive option addr" Revert "block: Remove deprecated -drive option serial" Revert "block: Remove dead deprecation warning code" block/blklogwrites: Make sure the log sector size is not too small qapi/block-core.json: Add missing documentation for blklogwrites log-append option block/backup: fix fleecing scheme: use serialized writes block: add BDRV_REQ_SERIALISING flag block: split flags in copy_range block/io: fix copy_range ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-10Merge remote-tracking branch ↵Peter Maydell8-88/+238
'remotes/dgilbert/tags/pull-migration-20180710a' into staging Migration pull 2018-07-10 (for 3.0) Migration fixes and migration test fixes, mostly around postcopy and postcopy recovery # gpg: Signature made Tue 10 Jul 2018 16:27:19 BST # gpg: using RSA key 0516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>" # Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert/tags/pull-migration-20180710a: migration: reorder MIG_CMD_POSTCOPY_RESUME tests: hide stderr for postcopy recovery test tests: add postcopy recovery test tests: introduce wait_for_migration_status() tests: introduce migrate_query*() helpers tests: allow migrate() to take extra flags tests: introduce migrate_postcopy_* helpers migration: show pause/recover state on dst host migration: fix incorrect bitmap size calculation migration: loosen recovery check when load vm migration: simplify check to use qemu file buffer migration: unify incoming processing migration: unbreak postcopy recovery migration: move income process out of multifd migration: delay postcopy paused state Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-10block: Use common write req handling in truncateFam Zheng1-20/+35
Truncation is the last to convert from open coded req handling to reusing helpers. This time the permission check in prepare has to adapt to the new caller: it checks a different permission bit, and doesn't trigger the before write notifier. Also, truncation should always trigger a bs->total_sectors update and in turn call parent resize_cb. Update the condition in finish helper, too. It's intended to do a duplicated bs->read_only check before calling bdrv_co_write_req_prepare() so that we can be more informative with the error message, as bdrv_co_write_req_prepare() doesn't have Error parameter. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Fix bdrv_co_truncate overlap checkFam Zheng1-1/+2
If we are growing the image and potentially using preallocation for the new area, we need to make sure that no write requests are made to the "preallocated" area which is [@old_size, @offset), not [@offset, offset * 2 - @old_size). Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Use common req handling in copy offloadingFam Zheng1-14/+10
This brings the request handling logic inline with write and discard, fixing write_gen, resize_cb, dirty bitmaps and image size refreshing. The last of these issues broke iotest case 222, which is now fixed. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Use common req handling for discardFam Zheng1-10/+23
Reuse the new bdrv_co_write_req_prepare/finish helpers. The variation here is that discard requests don't affect bs->wr_highest_offset, and it cannot extend the image. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10migration: reorder MIG_CMD_POSTCOPY_RESUMEPeter Xu1-1/+1
It was accidently added before MIG_CMD_PACKAGED so it might break command compatibility when we run postcopy migration between old/new QEMUs. Fix that up quickly before the QEMU 3.0 release. Reported-by: Lukáš Doktor <ldoktor@redhat.com> Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710094424.30754-1-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: hide stderr for postcopy recovery testPeter Xu1-4/+5
We dumped something when network failure happens. We should avoid those messages to be dumped when running the tests: $ ./tests/migration-test -p /x86_64/migration/postcopy/recovery /x86_64/migration/postcopy/recovery: qemu-system-x86_64: check_section_footer: Read section footer failed: -5 qemu-system-x86_64: Detected IO failure for postcopy. Migration paused. qemu-system-x86_64: Detected IO failure for postcopy. Migration paused. OK After the patch: $ ./tests/migration-test -p /x86_64/migration/postcopy/recovery /x86_64/migration/postcopy/recovery: OK Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-11-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: add postcopy recovery testPeter Xu1-0/+80
Test the postcopy recovery procedure by emulating a network failure using migrate-pause command. Tested-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-10-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: introduce wait_for_migration_status()Peter Xu1-2/+8
It's generalized from wait_for_migration_complete() to allow us to wait for any migration status besides failure. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-9-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: introduce migrate_query*() helpersPeter Xu1-21/+43
Introduce helpers to query migration states and use it. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-8-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: allow migrate() to take extra flagsPeter Xu1-6/+6
For example, we can pass in '"resume": true' to resume a migration. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-7-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10tests: introduce migrate_postcopy_* helpersPeter Xu1-11/+31
Separate the old postcopy UNIX socket test into three steps, provide a helper for each step. With these helpers, we can do more compliated tests like postcopy recovery, while keep the codes shared. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Balamuruhan S <bala24@linux.vnet.ibm.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-6-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Fix up merge with 2e295789 / Skip tests for ppc tcg
2018-07-10block: Fix handling of image enlarging writeFam Zheng1-3/+7
Two problems exist when a write request that enlarges the image (i.e. write beyond EOF) finishes: 1) parent is not notified about size change; 2) dirty bitmap is not resized although we try to set the dirty bits; Fix them just like how bdrv_co_truncate works. Reported-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Extract common write req handlingFam Zheng1-34/+57
As a mechanical refactoring patch, this is the first step towards unified and more correct write code paths. This is helpful because multiple BlockDriverState fields need to be updated after modifying image data, and it's hard to maintain in multiple places such as copy offload, discard and truncate. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Use uint64_t for BdrvTrackedRequest byte fieldsFam Zheng2-5/+7
This matches the types used for bytes in the rest parts of block layer. In the case of bdrv_co_truncate, new_bytes can be the image size which probably doesn't fit in a 32 bit int. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Use BdrvChild to discardFam Zheng11-20/+20
Other I/O functions are already using a BdrvChild pointer in the API, so make discard do the same. It makes it possible to initiate the same permission checks before doing I/O, and much easier to share the helper functions for this, which will be added and used by write, truncate and copy range paths. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Add copy offloading trace pointsFam Zheng4-0/+15
A few trace points that can help reveal what is happening in a copy offloading I/O path. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10block: Prefix file driver trace points with "file_"Fam Zheng3-4/+4
With in one module, trace points usually have a common prefix named after the module name. paio_submit and paio_submit_co are the only two trace points so far in the two file protocol drivers. As we are adding more, having a common prefix here is better so that trace points can be enabled with a glob. Rename them. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10Revert "block: Remove deprecated -drive geometry options"Cornelia Huck7-9/+131
This reverts commit a7aff6dd10b16b67e8b142d0c94c5d92c3fe88f6. Hold off removing this for one more QEMU release (current libvirt release still uses it.) Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10Revert "block: Remove deprecated -drive option addr"Cornelia Huck5-2/+30
This reverts commit eae3bd1eb7c6b105d30ec06008b3bc3dfc5f45bb. Reverted to avoid conflicts for geometry options revert. Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10Revert "block: Remove deprecated -drive option serial"Cornelia Huck14-8/+48
This reverts commit b0083267444a5e0f28391f6c2831a539f878d424. Hold off removing this for one more QEMU release (current libvirt release still uses it.) Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10Revert "block: Remove dead deprecation warning code"Cornelia Huck1-0/+12
This reverts commit 6266e900b8083945cb766b45c124fb3c42932cb3. Some deprecated -drive options were still in use by libvirt, only fixed with libvirt commit b340c6c614 ("qemu: format serial and geometry on frontend disk device"), which is not yet in any released version of libvirt. So let's hold off removing the deprecated options for one more QEMU release. Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-07-10migration: show pause/recover state on dst hostPeter Xu1-0/+2
These two states will be missing when doing "query-migrate" on destination VM. Add these states so that we can get the query results as expected. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-5-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: fix incorrect bitmap size calculationPeter Xu1-2/+2
The calculation on size of received bitmap is incorrect for postcopy recovery. Here we wanted to let the size to cover all the valid bits in the bitmap, we should use DIV_ROUND_UP() instead of a division. For example, a RAMBlock with size=4K (which contains only one single 4K page) will have nbits=1, then nbits/8=0, then the real bitmap won't be sent to source at all. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-4-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: loosen recovery check when load vmPeter Xu1-10/+6
We were checking against -EIO, assuming that it will cover all IO failures. But actually it is not. One example is that in qemu_loadvm_section_start_full() we can have tons of places that will return -EINVAL even if the error is caused by IO failures on the network. Let's loosen the recovery check logic here to cover all the error cases happened by removing the explicit check against -EIO. After all we won't lose anything here if any other failure happened. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-3-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: simplify check to use qemu file bufferPeter Xu1-6/+11
Firstly, renaming the old matching_page_sizes variable to matches_target_page_size, which suites more to what it did (it only checks against target page size rather than multiple page sizes). Meanwhile, simplify the check logic a bit, and enhance the comments. Should have no functional change. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180710091902.28780-2-peterx@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: unify incoming processingPeter Xu4-13/+16
This is the 2nd patch to unbreak postcopy recovery. Let's unify the migration_incoming_process() call at a single place rather than calling it in connection setup codes. This fixes a problem that we will go into incoming migration procedure even if we are trying to recovery from a paused postcopy migration. Fixes: 36c2f8be2c ("migration: Delay start of migration main routines") Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180627132246.5576-5-peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: unbreak postcopy recoveryPeter Xu1-5/+18
The whole postcopy recovery logic was accidentally broken. We need to fix it in two steps. This is the first step that we should do the recovery when needed. It was bypassed before after commit 36c2f8be2c. Introduce postcopy_try_recovery() helper for the postcopy recovery logic. Call it both in migration_fd_process_incoming() and migration_ioc_process_incoming(). Fixes: 36c2f8be2c ("migration: Delay start of migration main routines") Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180627132246.5576-4-peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-07-10migration: move income process out of multifdPeter Xu3-8/+10
Move the call to migration_incoming_process() out of multifd code. It's a bit strange that we can migration generic calls in multifd code. Instead, let multifd_recv_new_channel() return a boolean showing whether it's ready to continue the incoming migration. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180627132246.5576-3-peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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