aboutsummaryrefslogtreecommitdiff
path: root/docs
AgeCommit message (Collapse)Author
2018-03-02docs: document how to use the l2-cache-entry-size parameterAlberto Garcia
This patch updates docs/qcow2-cache.txt explaining how to use the new l2-cache-entry-size parameter. Here's a more detailed technical description of this feature: https://lists.gnu.org/archive/html/qemu-block/2017-09/msg00635.html And here are some performance numbers: https://lists.gnu.org/archive/html/qemu-block/2017-12/msg00507.html Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-02specs/qcow2: Fix documentation of the compressed cluster descriptorAlberto Garcia
This patch fixes several mistakes in the documentation of the compressed cluster descriptor: 1) the documentation claims that the cluster descriptor contains the number of sectors used to store the compressed data, but what it actually contains is the number of sectors *minus one* or, in other words, the number of additional sectors after the first one. 2) the width of the fields is incorrectly specified. The number of bits used by each field is x = 62 - (cluster_bits - 8) for the offset field y = (cluster_bits - 8) for the size field So the offset field's location is [0, x-1], not [0, x] as stated. 3) the size field does not contain the size of the compressed data, but rather the number of sectors where that data is stored. The compressed data starts at the exact point specified in the offset field and ends when there's enough data to produce a cluster of decompressed data. Both points can be in the middle of a sector, allowing several compressed clusters to be stored next to one another, sharing sectors if necessary. Cc: qemu-stable@nongnu.org Signed-off-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-03-01cryptodev-vhost-user: add crypto session handlerGonglei
Introduce two vhost-user meassges: VHOST_USER_CREATE_CRYPTO_SESSION and VHOST_USER_CLOSE_CRYPTO_SESSION. At this point, the QEMU side support crypto operation in cryptodev host-user backend. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Signed-off-by: Jay Zhou <jianjay.zhou@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-01docs/vmcoreinfo: detail unsupported host format behaviourMarc-André Lureau
Suggested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-01docs: pcie: Spell out machine type needs for PCIe featuresKashyap Chamarthy
PCIe features are available only via the 'q35' machine type for x86 and the 'virt' machine type for AArch64 architecture. Mention that explicitly. Thanks: Daniel Berrangé Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-03-01docs: document virtio-balloon statsTomáš Golembiovský
Document statistics added in commits commit a0d06486b445985b8d128df172daefbae205bffd Author: Denis V. Lunev <den@openvz.org> Date: Wed Feb 24 10:50:48 2016 +0300 virtio-balloon: add 'available' counter and commit bf1e7140ef0b3a149860ab9f05b36665133238f6 Author: Tomáš Golembiovský <tgolembi@redhat.com> Date: Tue Dec 5 13:14:46 2017 +0100 virtio-balloon: include statistics of disk/file caches Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Jonathan Helman <jonathan.helman@oracle.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-02-19Merge remote-tracking branch 'remotes/marcel/tags/rdma-pull-request' into ↵Peter Maydell
staging PVRDMA implementation # gpg: Signature made Mon 19 Feb 2018 11:08:49 GMT # gpg: using RSA key 36D4C0F0CF2FE46D # gpg: Good signature from "Marcel Apfelbaum <marcel@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: B1C6 3A57 F92E 08F2 640F 31F5 36D4 C0F0 CF2F E46D * remotes/marcel/tags/rdma-pull-request: MAINTAINERS: add entry for hw/rdma hw/rdma: Implementation of PVRDMA device hw/rdma: PVRDMA commands and data-path ops hw/rdma: Implementation of generic rdma device layers hw/rdma: Definitions for rdma device and rdma resource manager hw/rdma: Add wrappers and macros include/standard-headers: add pvrdma related headers scripts/update-linux-headers: import pvrdma headers docs: add pvrdma device documentation. mem: add share parameter to memory-backend-ram Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-19docs: add pvrdma device documentation.Marcel Apfelbaum
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Reviewed-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
2018-02-19docs: document our stable processCornelia Huck
Some pointers on how to get a patch into stable. [contains some suggestions by mdroth and eblake] Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2018-02-16Merge remote-tracking branch ↵Peter Maydell
'remotes/dgilbert/tags/pull-migration-20180214a' into staging Migration pull 20180214 Note that the 'Add test for migration to bad destination' displays a 'Connection refused' during running, but still gives the correct exit code and OK (It's checking that the source doesn't fail when it can't connect, so that's the right error). If it's particularly disliked that patch can be skipped individually. # gpg: Signature made Wed 14 Feb 2018 15:33:04 GMT # 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-20180214a: migration: pass MigrationState to migrate_init() migration: allow send_rq to fail migration: provide postcopy_fault_thread_notify() migration: reuse mis->userfault_quit_fd migration: better error handling with QEMUFile tests/migration: Add test for migration to bad destination migration: Fix early failure cleanup tests/migration: Add source to PC boot block migration: improve documentation of postcopy-ram migration/xen: Check return value of qemu_fclose Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-14migration: improve documentation of postcopy-ramGreg Kurz
This capability must have the same value on both source and destination, otherwise migration fails (commit 875fcd013ab6 "migration: incoming postcopy advise sanity checks"). Let's write it down in various places where postcopy-ram is documented. Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <151801810352.29167.4832480228518630626.stgit@bahia.lan> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-13Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block layer patches # gpg: Signature made Tue 13 Feb 2018 17:03:11 GMT # 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: (55 commits) iotests: Add l2-cache-entry-size to iotest 137 iotests: Test downgrading an image using a small L2 slice size iotests: Test valid values of l2-cache-entry-size qcow2: Allow configuring the L2 slice size qcow2: Rename l2_table in count_cow_clusters() qcow2: Rename l2_table in count_contiguous_clusters_unallocated() qcow2: Rename l2_table in count_contiguous_clusters() qcow2: Rename l2_table in qcow2_alloc_compressed_cluster_offset() qcow2: Update qcow2_truncate() to support L2 slices qcow2: Update expand_zero_clusters_in_l1() to support L2 slices qcow2: Prepare expand_zero_clusters_in_l1() for adding L2 slice support qcow2: Read refcount before L2 table in expand_zero_clusters_in_l1() qcow2: Update qcow2_update_snapshot_refcount() to support L2 slices qcow2: Prepare qcow2_update_snapshot_refcount() for adding L2 slice support qcow2: Update zero_single_l2() to support L2 slices qcow2: Update discard_single_l2() to support L2 slices qcow2: Update handle_alloc() to support L2 slices qcow2: Update handle_copied() to support L2 slices qcow2: Update qcow2_alloc_cluster_link_l2() to support L2 slices qcow2: Update qcow2_get_cluster_offset() to support L2 slices ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* CAN bus (will be under network maintainner) * scsi-block opblockers (myself) * Dirty log bitmap cleanup (myself) * SDHCI improvements and tests (Philippe) * HAX support for larger guest sizese (Yu Ning) # gpg: Signature made Tue 13 Feb 2018 15:37:14 GMT # gpg: using RSA key BFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (48 commits) travis: use libgcc-4.8-dev (libgcc-6-dev is not available on Ubuntu 14.04) memory: unify loops to sync dirty log bitmap memory: hide memory_region_sync_dirty_bitmap behind DirtyBitmapSnapshot memory: remove memory_region_test_and_clear_dirty g364fb: switch to using DirtyBitmapSnapshot sdhci: add Spec v4.2 register definitions sdhci: add a check_capab_v3() qtest sdhci: check Spec v3 capabilities qtest hw/arm/xilinx_zynqmp: enable the UHS-I mode hw/arm/xilinx_zynqmp: fix the capabilities/spec version to match the datasheet hw/arm/fsl-imx6: implement SDHCI Spec. v3 hw/arm/bcm2835_peripherals: change maximum block size to 1kB hw/arm/bcm2835_peripherals: implement SDHCI Spec v3 sdhci: implement CMD/DAT[] fields in the Present State register sdhci: implement UHS-I voltage switch sdbus: add trace events sdhci: implement the Host Control 2 register (tuning sequence) sdhci: rename the hostctl1 register sdhci: add support for v3 capabilities hw/arm/xilinx_zynq: fix the capabilities register to match the datasheet ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
virtio,vhost,pci,pc: features, fixes and cleanups - new stats in virtio balloon - virtio eventfd rework for boot speedup - vhost memory rework for boot speedup - fixes and cleanups all over the place Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Tue 13 Feb 2018 16:29:55 GMT # gpg: using RSA key 281F0DB8D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: (22 commits) virtio-balloon: include statistics of disk/file caches acpi-test: update FADT lpc: drop pcie host dependency tests: acpi: fix FADT not being compared to reference table hw/pci-bridge: fix pcie root port's IO hints capability libvhost-user: Support across-memory-boundary access libvhost-user: Fix resource leak virtio-balloon: unref the memory region before continuing pci: removed the is_express field since a uniform interface was inserted virtio-blk: enable multiple vectors when using multiple I/O queues pci/bus: let it has higher migration priority pci-bridge/i82801b11: clear bridge registers on platform reset vhost: Move log_dirty check vhost: Merge and delete unused callbacks vhost: Clean out old vhost_set_memory and friends vhost: Regenerate region list from changed sections list vhost: Merge sections added to temporary list vhost: Simplify ring verification checks vhost: Build temporary section list and deref after commit virtio: improve virtio devices initialization time ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13docs: Document share-rw property more thoroughlyFam Zheng
Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-02-13net/can: documentationPavel Pisa
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-02-09Include qapi/error.h exactly where neededMarkus Armbruster
This cleanup makes the number of objects depending on qapi/error.h drop from 1910 (out of 4743) to 1612 in my "build everything" tree. While there, separate #include from file comment with a blank line, and drop a useless comment on why qemu/osdep.h is included first. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-5-armbru@redhat.com> [Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
2018-02-08pci: removed the is_express field since a uniform interface was insertedYoni Bettan
according to Eduardo Habkost's commit fd3b02c889 all PCIEs now implement INTERFACE_PCIE_DEVICE so we don't need is_express field anymore. Devices that implements only INTERFACE_PCIE_DEVICE (is_express == 1) or devices that implements only INTERFACE_CONVENTIONAL_PCI_DEVICE (is_express == 0) where not affected by the change. The only devices that were affected are those that are hybrid and also had (is_express == 1) - therefor only: - hw/vfio/pci.c - hw/usb/hcd-xhci.c - hw/xen/xen_pt.c For those 3 I made sure that QEMU_PCI_CAP_EXPRESS is on in instance_init() Reviewed-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Yoni Bettan <ybettan@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-02-08docs: Add docs/devel/testing.rstFam Zheng
To make our efforts on QEMU testing easier to consume by contributors, let's add a document. For example, Patchew reports build errors on patches that should be relatively easy to reproduce with a few steps, and it is much nicer if there is such a documentation that it can refer to. This focuses on how to run existing tests and how to write new test cases, without going into the frameworks themselves. The VM based testing section is moved from tests/vm/README which now is a single line pointing to the new doc. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20180201022046.9425-1-famz@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2018-02-08docs: Add section for NVMe VFIO driverFam Zheng
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20180116060901.17413-9-famz@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2018-01-24Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging Pull request v2: * Drop merge failure from a previous pull request that broke virtio-blk on ARM guests * Add Parallels XML patch series # gpg: Signature made Mon 22 Jan 2018 16:00:40 GMT # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: block/parallels: add backing support to readv/writev block/parallels: replace some magic numbers block/parallels: move some structures into header configure: add dependency docs/interop/prl-xml: description of Parallels Disk format block: add block_set_io_throttle virtio-blk-pci QMP example Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-23migration: Revert postcopy-blocktime commit setPeter Maydell
This reverts commits ca6011c migration: add postcopy total blocktime into query-migrate 5f32dc8 migration: add blocktime calculation into migration-test 2f7dae9 migration: postcopy_blocktime documentation 3be98be migration: calculate vCPU blocktime on dst side 01a87f0 migration: add postcopy blocktime ctx into MigrationIncomingState 31bf06a migration: introduce postcopy-blocktime capability as they don't build on ppc32 due to trying to do atomic accesses on types that are larger than the host pointer type. Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-22docs/interop/prl-xml: description of Parallels Disk formatKlim Kireev
This patch adds main information about Parallels Disk format, which consists of DiskDescriptor.xml and other files. Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com> Signed-off-by: Klim Kireev <klim.kireev@virtuozzo.com> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Message-id: 20180112090122.1702-2-klim.kireev@virtuozzo.com CC: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-01-19nvdimm: add 'unarmed' optionHaozhong Zhang
Currently the only vNVDIMM backend can guarantee the guest write persistence is device DAX on Linux, because no host-side kernel cache is involved in the guest access to it. The approach to detect whether the backend is device DAX needs to access sysfs, which may not work with SELinux. Instead, we add the 'unarmed' option to device 'nvdimm', so that users or management utils, which have enough knowledge about the backend, can control the unarmed flag in guest ACPI NFIT via this option. The guest Linux NVDIMM driver, for example, will mark the corresponding vNVDIMM device read-only if the unarmed flag in guest NFIT is set. The default value of 'unarmed' option is 'off' in order to keep the backwards compatibility. Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com> Message-Id: <20171211072806.2812-4-haozhong.zhang@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-01-19hostmem-file: add "align" optionHaozhong Zhang
When mmap(2) the backend files, QEMU uses the host page size (getpagesize(2)) by default as the alignment of mapping address. However, some backends may require alignments different than the page size. For example, mmap a device DAX (e.g., /dev/dax0.0) on Linux kernel 4.13 to an address, which is 4K-aligned but not 2M-aligned, fails with a kernel message like [617494.969768] dax dax0.0: qemu-system-x86: dax_mmap: fail, unaligned vma (0x7fa37c579000 - 0x7fa43c579000, 0x1fffff) Because there is no common approach to get such alignment requirement, we add the 'align' option to 'memory-backend-file', so that users or management utils, which have enough knowledge about the backend, can specify a proper alignment via this option. Signed-off-by: Haozhong Zhang <haozhong.zhang@intel.com> Message-Id: <20171211072806.2812-2-haozhong.zhang@intel.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> [ehabkost: fixed typo, fixed error_setg() format string] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-01-18vhost-user: fix multiple queue specificationMaxime Coquelin
The number of queues supported by the slave is queried with message VHOST_USER_GET_QUEUE_NUM, not with message VHOST_USER_GET_PROTOCOL_FEATURES. Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-01-18vhost-user: add new vhost user messages to support virtio config spaceChangpeng Liu
Add VHOST_USER_GET_CONFIG/VHOST_USER_SET_CONFIG messages which can be used for live migration of vhost user devices, also vhost user devices can benefit from the messages to get/set virtio config space from/to the I/O target. For the purpose to support virtio config space change, VHOST_USER_SLAVE_CONFIG_CHANGE_MSG message is added as the event notifier in case virtio config space change in the slave I/O target. Signed-off-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2018-01-16Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* QemuMutex tracing improvements (Alex) * ram_addr_t optimization (David) * SCSI fixes (Fam, Stefan, me) * do {} while (0) fixes (Eric) * KVM fix for PMU (Jan) * memory leak fixes from ASAN (Marc-André) * migration fix for HPET, icount, loadvm (Maria, Pavel) * hflags fixes (me, Tao) * block/iscsi uninitialized variable (Peter L.) * full support for GMainContexts in character devices (Peter Xu) * more boot-serial-test (Thomas) * Memory leak fix (Zhecheng) # gpg: Signature made Tue 16 Jan 2018 14:15:45 GMT # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (51 commits) scripts/analyse-locks-simpletrace.py: script to analyse lock times util/qemu-thread-*: add qemu_lock, locked and unlock trace events cpu: flush TB cache when loading VMState block/iscsi: fix initialization of iTask in iscsi_co_get_block_status find_ram_offset: Align ram_addr_t allocation on long boundaries find_ram_offset: Add comments and tracing cpu_physical_memory_sync_dirty_bitmap: Another alignment fix checkpatch: Enforce proper do/while (0) style maint: Fix macros with broken 'do/while(0); ' usage tests: Avoid 'do/while(false); ' in vhost-user-bridge chardev: Clean up previous patch indentation chardev: Use goto/label instead of do/break/while(0) mips: Tweak location of ';' in macros net: Drop unusual use of do { } while (0); irq: fix memory leak cpus: unify qemu_*_wait_io_event icount: fixed saving/restoring of icount warp timers scripts/qemu-gdb/timers.py: new helper to dump timer state scripts/qemu-gdb: add simple tcg lock status helper target-i386: update hflags on Hypervisor.framework ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-01-15migration: postcopy_blocktime documentationAlexey Perevalov
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Alexey Perevalov <a.perevalov@samsung.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2018-01-15docs: Convert migration.txt to rstDr. David Alan Gilbert
Mostly just manual conversion with very minor fixes. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2018-01-12build-sys: add a rule to print a variableMarc-André Lureau
$ make print-CFLAGS CFLAGS=-fsanitize=address -Og -g Trick from various sources: https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile https://www.cmcrossroads.com/article/printing-value-makefile-variable Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20180104160523.22995-4-marcandre.lureau@redhat.com> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-01-11Merge remote-tracking branch 'origin/master' into HEADMichael S. Tsirkin
Resolve conflicts around apb. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-12-22vhost-user: document memory accessesStefan Hajnoczi
The vhost-user protocol specification does not define "guest address" and "user address". It does not explain how to access memory given such addresses. This patch explains how memory access works, including the IOTLB. Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Maxime Coquelin <maxime.coquelin@redhat.com> Cc: Wei Wang <wei.w.wang@intel.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2017-12-22vhost-user: fix indentation in protocol specificationStefan Hajnoczi
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-12-20qapi-docs: fix a comment typoChen Hanxiao
s/Subection/Subsection Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Message-Id: <20171012064448.20276-1-chen_han_xiao@126.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-12-19docs: mark nested AioContext locking as a legacy APIStefan Hajnoczi
See the patch for why nested AioContext locking is no longer allowed. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-id: 20171207201320.19284-3-stefanha@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-11-27QAPI & interop: Clarify events emitted by 'block-job-cancel'Kashyap Chamarthy
When you cancel an in-progress 'mirror' job (or "active `block-commit`") with QMP `block-job-cancel`, it emits the event: BLOCK_JOB_CANCELLED. However, when `block-job-cancel` is issued *after* `drive-mirror` has indicated (via the event BLOCK_JOB_READY) that the source and destination have reached synchronization: [...] # Snip `drive-mirror` invocation & outputs { "execute":"block-job-cancel", "arguments":{ "device":"virtio0" } } {"return": {}} It (`block-job-cancel`) will counterintuitively emit the event 'BLOCK_JOB_COMPLETED': { "timestamp":{ "seconds":1510678024, "microseconds":526240 }, "event":"BLOCK_JOB_COMPLETED", "data":{ "device":"virtio0", "len":41126400, "offset":41126400, "speed":0, "type":"mirror" } } But this is expected behaviour, where the _COMPLETED event indicates that synchronization has successfully ended (and the destination now has a point-in-time copy, which is at the time of cancel). So add a small note to this effect in 'block-core.json'. While at it, also update the "Live disk synchronization -- drive-mirror and blockdev-mirror" section in 'live-block-operations.rst'. (Thanks: Max Reitz for reminding me of this caveat on IRC.) Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-11-27docs: Add image locking subsectionFam Zheng
This documents the image locking feature and explains when and how related options can be used. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-11-21Use HTTPS for qemu.org and other domainsStefan Hajnoczi
qemu.org enabled HTTPS in 2017 and it should be used instead of HTTP. There are also URLs to json.org, openvpn.net, and other domains that support HTTPS. This patch updates the qemu.org domains everywhere and also third-party domains that I have checked. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20171121120435.28728-3-stefanha@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-21Use qemu.org domain nameStefan Hajnoczi
The owner of qemu.org has delegated authority to modify DNS records to the QEMU Project. This has allowed us to use the domain name without worries about IP address changes or technical issues disrupting service. The issues described in commit 859389810910f232188675d2f10b15f1aad77660 ("Use qemu-project.org domain name") have therefore been mitigated. This patch switches back to consistently using qemu.org instead of qemu-project.org in documentation, version.rc, and the Windows installer script. The git submodules and SeaBIOS still use qemu-project.org for the time being. This will be fixed in the QEMU 2.12 release cycle. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20171121120435.28728-2-stefanha@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-11-15specs: Extend TPM spec with TPM emulator descriptionStefan Berger
Following the recent extension of QEMU with a TPM emulator device, update the specs describing for how to interact with the device. The results of commands run inside a Linux VM are expected to be similar to those when the TPM passthrough device is used, so we just reuse that. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2017-11-05pci-assign: RemovePaolo Bonzini
Legacy PCI device assignment has been removed from Linux in 4.12, and had been deprecated 2 years ago there. We can remove it from QEMU as well. The ROM loading code was shared with Xen PCI passthrough, so move it to hw/xen. Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-19Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* TCG 8-byte atomic accesses bugfix (Andrew) * Report disk rotation rate (Daniel) * Report invalid scsi-disk block size configuration (Mark) * KVM and memory API MemoryListener fixes (David, Maxime, Peter Xu) * x86 CPU hotplug crash fix (Igor) * Load/store API documentation (Peter Maydell) * Small fixes by myself and Thomas * qdev DEVICE_DELETED deferral (Michael) # gpg: Signature made Wed 18 Oct 2017 10:56:24 BST # gpg: using RSA key 0xBFFBD25F78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (29 commits) scsi: reject configurations with logical block size > physical block size qdev: defer DEVICE_DEL event until instance_finalize() Revert "qdev: Free QemuOpts when the QOM path goes away" qdev: store DeviceState's canonical path to use when unparenting qemu-pr-helper: use new libmultipath API watch_mem_write: implement 8-byte accesses notdirty_mem_write: implement 8-byte accesses memory: reuse section_from_flat_range() kvm: simplify kvm_align_section() kvm: region_add and region_del is not called on updates kvm: fix error message when failing to unregister slot kvm: tolerate non-existing slot for log_start/log_stop/log_sync kvm: fix alignment of ram address memory: call log_start after region_add target/i386: trap on instructions longer than >15 bytes target/i386: introduce x86_ld*_code tco: add trace events docs/devel/loads-stores.rst: Document our various load and store APIs nios2: define tcg_env build: remove CONFIG_LIBDECNUMBER ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-10-16Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
pc, pci, virtio: fixes, features A bunch of fixes all over the place. A new vmcore device - the user interface around it is still somewhat controversial, but I feel most of the code is fine, suggestions can be addressed by adding patches on top. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Sun 15 Oct 2017 04:02:23 BST # gpg: using RSA key 0x281F0DB8D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * remotes/mst/tags/for_upstream: (26 commits) tests/pxe: Test more NICs when running in SPEED=slow mode pc: remove useless hot_add_cpu initialisation isapc: Remove unnecessary migration compatibility code virtio-pci: Replace modern_as with direct access to modern_bar virtio: fix descriptor counting in virtqueue_pop hw/gen_pcie_root_port: make IO RO 0 on IO disabled pci: Validate interfaces on base_class_init xen/pt: Mark TYPE_XEN_PT_DEVICE as hybrid pci: Add INTERFACE_CONVENTIONAL_PCI_DEVICE to Conventional PCI devices pci: Add INTERFACE_PCIE_DEVICE to all PCIe devices pci: Add interface names to hybrid PCI devices pci: conventional-pci-device and pci-express-device interfaces PCI: PCIe access should always be little endian virtio/pci/migration: Convert to VMState hw/pci-bridge/pcie_pci_bridge: properly handle MSI unavailability case pci: allow 32-bit PCI IO accesses to pass through the PCI bridge virtio/vhost: reset dev->log after syncing MAINTAINERS: add Dump maintainers scripts/dump-guest-memory.py: add vmcoreinfo kdump: set vmcoreinfo location ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-10-16docs/devel/loads-stores.rst: Document our various load and store APIsPeter Maydell
QEMU has a wide selection of different functions for doing loads and stores; provide some overview documentation of what they do and how to pick which one to use. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1507813181-11860-1-git-send-email-peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-10-15dump: update phys_base header field based on VMCOREINFO contentMarc-André Lureau
If the guest note is VMCOREINFO, try to get phys_base from it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-10-15hw/misc: add vmcoreinfo deviceMarc-André Lureau
See docs/specs/vmcoreinfo.txt for details. "etc/vmcoreinfo" fw_cfg entry is added when using "-device vmcoreinfo". Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2017-10-13specs: Describe the TPM support in QEMUStefan Berger
This patch adds a description of the current TPM support in QEMU to the specs. Several public specs are referenced via their landing page on the trustedcomputinggroup.org website. Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2017-09-27Merge remote-tracking branch ↵Peter Maydell
'remotes/dgilbert/tags/pull-migration-20170927a' into staging Migration pull 2017-09-27 # gpg: Signature made Wed 27 Sep 2017 14:56:23 BST # gpg: using RSA key 0x0516331EBC5BFDE7 # gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@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: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7 * remotes/dgilbert/tags/pull-migration-20170927a: migration: Route more error paths migration: Route errors up through vmstate_save migration: wire vmstate_save_state errors up to vmstate_subsection_save migration: Check field save returns migration: check pre_save return in vmstate_save_state migration: pre_save return int migration: disable auto-converge during bulk block migration Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-27Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block layer patches # gpg: Signature made Tue 26 Sep 2017 14:52:32 BST # gpg: using RSA key 0x7F09B272C88F2FD6 # 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/qcow2-bitmap: fix use of uninitialized pointer qemu-iotests: add shrinking image test qcow2: add shrink image support qcow2: add qcow2_cache_discard qemu-img: add --shrink flag for resize iotests: fix 181: enable postcopy-ram capability on target qemu-iotests: Test change-backing-file command block: Fix permissions after bdrv_reopen() block: reopen: Queue children after their parents block: Base permissions on rw state after reopen block: Add reopen queue to bdrv_check_perm() block: Add reopen_queue to bdrv_child_perm() qemu-io: Drop write permissions before read-only reopen block: Clean up some bad code in the vvfat driver block/throttle-groups.c: allocate RestartData on the heap throttle: Assert that bkt->max is valid in throttle_compute_wait() iotests: Print full path of bad output if mismatch iotests: use virtio aliases for 067 iotests: use -ccw on s390x for 051 iotests: use -ccw on s390x for 040, 139, and 182 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-04 20:34:10 +0000