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2020-01-20migration: Support QLIST migrationEric Auger
Support QLIST migration using the same principle as QTAILQ: 94869d5c52 ("migration: migrate QTAILQ"). The VMSTATE_QLIST_V macro has the same proto as VMSTATE_QTAILQ_V. The change mainly resides in QLIST RAW macros: QLIST_RAW_INSERT_HEAD and QLIST_RAW_REVERSE. Tests also are provided. Signed-off-by: Eric Auger <eric.auger@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20migration: Change SaveStateEntry.instance_id into uint32_tPeter Xu
It was always used as 32bit, so define it as used to be clear. Instead of using -1 as the auto-gen magic value, we switch to UINT32_MAX. We also make sure that we don't auto-gen this value to avoid overflowed instance IDs without being noticed. Suggested-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20migration: Define VMSTATE_INSTANCE_ID_ANYPeter Xu
Define the new macro VMSTATE_INSTANCE_ID_ANY for callers who wants to auto-generate the vmstate instance ID. Previously it was hard coded as -1 instead of this macro. It helps to change this default value in the follow up patches. No functional change. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-06vmstate: replace DeviceState with VMStateIfMarc-André Lureau
Replace DeviceState dependency with VMStateIf on vmstate API. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Halil Pasic <pasic@linux.ibm.com>
2020-01-06vmstate: add qom interface to get idMarc-André Lureau
Add an interface to get the instance id, instead of depending on Device and qdev_get_dev_path(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-10-29migration: add new migration state wait-unplugJens Freimann
This patch adds a new migration state called wait-unplug. It is entered after the SETUP state if failover devices are present. It will transition into ACTIVE once all devices were succesfully unplugged from the guest. So if a guest doesn't respond or takes long to honor the unplug request the user will see the migration state 'wait-unplug'. In the migration thread we query failover devices if they're are still pending the guest unplug. When all are unplugged the migration continues. If one device won't unplug migration will stay in wait_unplug state. Signed-off-by: Jens Freimann <jfreimann@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20191029114905.6856-9-jfreimann@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2019-10-11migration: Support gtree migrationEric Auger
Introduce support for GTree migration. A custom save/restore is implemented. Each item is made of a key and a data. If the key is a pointer to an object, 2 VMSDs are passed into the GTree VMStateField. When putting the items, the tree is traversed in sorted order by g_tree_foreach. On the get() path, gtrees must be allocated using the proper key compare, key destroy and value destroy. This must be handled beforehand, for example in a pre_load method. Tests are added to test save/dump of structs containing gtrees including the virtio-iommu domain/mappings scenario. Signed-off-by: Eric Auger <eric.auger@redhat.com> Message-Id: <20191011121724.433-1-eric.auger@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> uintptr_t fixup for test on 32bit
2019-10-11migration: use migration_is_active to represent active stateWei Yang
Wrap the check into a function to make it easy to read. Signed-off-by: Wei Yang <richardw.yang@linux.intel.com> Message-Id: <20190717005341.14140-1-richardw.yang@linux.intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-09-12migration: register_savevm_live doesn't need devDr. David Alan Gilbert
Commit 78dd48df3 removed the last caller of register_savevm_live for an instantiable device (rather than a single system wide device); so trim out the parameter. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190822115433.12070-1-dgilbert@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-08-16Merge remote-tracking branch ↵Peter Maydell
'remotes/armbru/tags/pull-include-2019-08-13-v2' into staging Header cleanup patches for 2019-08-13 # gpg: Signature made Fri 16 Aug 2019 12:39:12 BST # gpg: using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653 # gpg: issuer "armbru@redhat.com" # gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full] # gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full] # Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653 * remotes/armbru/tags/pull-include-2019-08-13-v2: (29 commits) sysemu: Split sysemu/runstate.h off sysemu/sysemu.h sysemu: Move the VMChangeStateEntry typedef to qemu/typedefs.h Include sysemu/sysemu.h a lot less Clean up inclusion of sysemu/sysemu.h numa: Move remaining NUMA declarations from sysemu.h to numa.h Include sysemu/hostmem.h less numa: Don't include hw/boards.h into sysemu/numa.h Include hw/boards.h a bit less Include hw/qdev-properties.h less Include qemu/main-loop.h less Include qemu/queue.h slightly less Include hw/hw.h exactly where needed Include qom/object.h slightly less Include exec/memory.h slightly less Include migration/vmstate.h less migration: Move the VMStateDescription typedef to typedefs.h Clean up inclusion of exec/cpu-common.h Include hw/irq.h a lot less typedefs: Separate incomplete types and function types ide: Include hw/ide/internal a bit less outside hw/ide/ ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-08-16Clean up inclusion of sysemu/sysemu.hMarkus Armbruster
In my "build everything" tree, changing sysemu/sysemu.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Almost a third of its inclusions are actually superfluous. Delete them. Downgrade two more to qapi/qapi-types-run-state.h, and move one from char/serial.h to char/serial.c. hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and stubs/semihost.c define variables declared in sysemu/sysemu.h without including it. The compiler is cool with that, but include it anyway. This doesn't reduce actual use much, as it's still included into widely included headers. The next commit will tackle that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-27-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
2019-08-16Include migration/vmstate.h lessMarkus Armbruster
In my "build everything" tree, changing migration/vmstate.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get VMStateDescription. The previous commit made that unnecessary. Include migration/vmstate.h only where it's still needed. Touching it now recompiles only some 1600 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-16-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16migration: Move the VMStateDescription typedef to typedefs.hMarkus Armbruster
We declare incomplete struct VMStateDescription in a couple of places so we don't have to include migration/vmstate.h for the typedef. That's fine with me. However, the next commit will drop migration/vmstate.h from a massive number of compiles. Move the typedef to qemu/typedefs.h now, so I don't have to insert struct in front of VMStateDescription all over the place then. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-15-armbru@redhat.com>
2019-08-16Clean up inclusion of exec/cpu-common.hMarkus Armbruster
migration/qemu-file.h neglects to include it even though it needs ram_addr_t. Fix that. Drop a few superfluous inclusions elsewhere. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-14-armbru@redhat.com>
2019-08-16Include migration/qemu-file-types.h a lot lessMarkus Armbruster
In my "build everything" tree, changing migration/qemu-file-types.h triggers a recompile of some 2600 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). The culprit is again hw/hw.h, which supposedly includes it for convenience. Include migration/qemu-file-types.h only where it's needed. Touching it now recompiles less than 200 objects. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190812052359.30071-10-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-16Include generated QAPI headers lessMarkus Armbruster
Some of the generated qapi-types-MODULE.h are included all over the place. Changing a QAPI type can trigger massive recompiling. Top scorers recompile more than 1000 out of some 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h): 6300 qapi/qapi-builtin-types.h 5700 qapi/qapi-types-run-state.h 3900 qapi/qapi-types-common.h 3300 qapi/qapi-types-sockets.h 3000 qapi/qapi-types-misc.h 3000 qapi/qapi-types-crypto.h 3000 qapi/qapi-types-job.h 3000 qapi/qapi-types-block-core.h 2800 qapi/qapi-types-block.h 1300 qapi/qapi-types-net.h Clean up headers to include generated QAPI headers only where needed. Impact is negligible except for hw/qdev-properties.h. This header includes qapi/qapi-types-block.h and qapi/qapi-types-misc.h. They are used only in expansions of property definition macros such as DEFINE_PROP_BLOCKDEV_ON_ERROR() and DEFINE_PROP_OFF_AUTO(). Moving their inclusion from hw/qdev-properties.h to the users of these macros avoids pointless recompiles. This is how other property definition macros, such as DEFINE_PROP_NETDEV(), already work. Improves things for some of the top scorers: 3600 qapi/qapi-types-common.h 2800 qapi/qapi-types-sockets.h 900 qapi/qapi-types-misc.h 2200 qapi/qapi-types-crypto.h 2100 qapi/qapi-types-job.h 2100 qapi/qapi-types-block-core.h 270 qapi/qapi-types-block.h Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-3-armbru@redhat.com>
2019-08-16include: Make headers more self-containedMarkus Armbruster
Back in 2016, we discussed[1] rules for headers, and these were generally liked: 1. Have a carefully curated header that's included everywhere first. We got that already thanks to Peter: osdep.h. 2. Headers should normally include everything they need beyond osdep.h. If exceptions are needed for some reason, they must be documented in the header. If all that's needed from a header is typedefs, put those into qemu/typedefs.h instead of including the header. 3. Cyclic inclusion is forbidden. This patch gets include/ closer to obeying 2. It's actually extracted from my "[RFC] Baby steps towards saner headers" series[2], which demonstrates a possible path towards checking 2 automatically. It passes the RFC test there. [1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html [2] Message-Id: <20190711122827.18970-1-armbru@redhat.com> https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-2-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-08-14qemu-file: move qemu_{get,put}_counted_string() declarationsMarc-André Lureau
Move migration helpers for strings under include/, so they can be used outside of migration/ Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20190808150325.21939-2-marcandre.lureau@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-07-26vmstate.h: Type check VMSTATE_STRUCT_VARRAY macrosPeter Maydell
The VMSTATE_STRUCT_VARRAY_UINT32 macro is intended to handle migrating a field which is an array of structs, but where instead of migrating the entire array we only migrate a variable number of elements of it. The VMSTATE_STRUCT_VARRAY_POINTER_UINT32 macro is intended to handle migrating a field which is of pointer type, and points to a dynamically allocated array of structs of variable size. We weren't actually checking that the field passed to VMSTATE_STRUCT_VARRAY_UINT32 really is an array, with the result that accidentally using it where the _POINTER_ macro was intended would compile but silently corrupt memory on migration. Add type-checking that enforces that the field passed in is really of the right array type. This applies to all the VMSTATE macros which use flags including VMS_VARRAY_* but not VMS_POINTER. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> Tested-by: Damien Hedde <damien.hedde@greensocs.com> Message-id: 20190725163710.11703-3-peter.maydell@linaro.org
2019-06-21vmstate: Add support for kernel integer typesLiran Alon
Reviewed-by: Nikita Leshenko <nikita.leshchenko@oracle.com> Reviewed-by: Maran Wilson <maran.wilson@oracle.com> Signed-off-by: Liran Alon <liran.alon@oracle.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20190619162140.133674-8-liran.alon@oracle.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-06-12Include qemu-common.h exactly where neededMarkus Armbruster
No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
2019-05-14migration/colo.h: Remove obsolete codesZhang Chen
Signed-off-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20190426090730.2691-3-chen.zhang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-05-14migration/colo.c: Remove redundant input parameterZhang Chen
The colo_do_failover no need the input parameter. Signed-off-by: Zhang Chen <chen.zhang@intel.com> Message-Id: <20190426090730.2691-2-chen.zhang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-05-14migration: comment VMSTATE_UNUSED*() properlyPeter Xu
It is error prone to use VMSTATE_UNUSED*() sometimes especially when the size of the migration stream of the field is not the same as the size of the structure (boolean is one example). Comment it well so people will be aware of this when people want to use it. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20190329095713.14177-1-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-05-13Clean up header guards that don't match their file nameMarkus Armbruster
Header guard symbols should match their file name to make guard collisions less likely. Cleaned up with scripts/clean-header-guards.pl, followed by some renaming of new guard symbols picked by the script to better ones. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190315145123.28030-6-armbru@redhat.com> [Rebase to master: update include/hw/net/ne2000-isa.h]
2019-03-07slirp: use libslirp migration codeMarc-André Lureau
slirp migration code uses QEMU vmstate so far, when building WITH_QEMU. Introduce slirp_state_{load,save,version}() functions to move the state saving handling to libslirp side. So far, the bitstream compatibility should remain equal with current QEMU, as this is effectively using the same code, with the same format etc. When libslirp is made standalone, we will need some mechanism to ensure bitstream compatibility regardless of the libslirp version installed. See the FIXME note in the code. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20190212162524.31504-3-marcandre.lureau@redhat.com> Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
2019-03-06migration/ram.c: add the free page optimization enable flagWei Wang
This patch adds the free page optimization enable flag, and a function to set this flag. When the free page optimization is enabled, not all the pages are needed to be sent in the bulk stage. Why using a new flag, instead of directly disabling ram_bulk_stage when the optimization is running? Thanks for Peter Xu's reminder that disabling ram_bulk_stage will affect the use of compression. Please see save_page_use_compression. When xbzrle and compression are used, if free page optimizaion causes the ram_bulk_stage to be disabled, save_page_use_compression will return false, which disables the use of compression. That is, if free page optimization avoids the sending of half of the guest pages, the other half of pages loses the benefits of compression in the meantime. Using a new flag to let migration_bitmap_find_dirty skip the free pages in the bulk stage will avoid the above issue. Signed-off-by: Wei Wang <wei.w.wang@intel.com> CC: Dr. David Alan Gilbert <dgilbert@redhat.com> CC: Juan Quintela <quintela@redhat.com> CC: Michael S. Tsirkin <mst@redhat.com> CC: Peter Xu <peterx@redhat.com> Message-Id: <1544516693-5395-7-git-send-email-wei.w.wang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06migration/ram.c: add a notifier chain for precopyWei Wang
This patch adds a notifier chain for the memory precopy. This enables various precopy optimizations to be invoked at specific places. Signed-off-by: Wei Wang <wei.w.wang@intel.com> CC: Dr. David Alan Gilbert <dgilbert@redhat.com> CC: Juan Quintela <quintela@redhat.com> CC: Michael S. Tsirkin <mst@redhat.com> CC: Peter Xu <peterx@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <1544516693-5395-6-git-send-email-wei.w.wang@intel.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06migration: API to clear bits of guest free pages from the dirty bitmapWei Wang
This patch adds an API to clear bits corresponding to guest free pages from the dirty bitmap. Spilt the free page block if it crosses the QEMU RAMBlock boundary. Signed-off-by: Wei Wang <wei.w.wang@intel.com> CC: Dr. David Alan Gilbert <dgilbert@redhat.com> CC: Juan Quintela <quintela@redhat.com> CC: Michael S. Tsirkin <mst@redhat.com> CC: Peter Xu <peterx@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <1544516693-5395-5-git-send-email-wei.w.wang@intel.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-06migration: Cleanup during exitDr. David Alan Gilbert
Currently we cleanup the migration object as we exit main after the main_loop finishes; however if there's a migration running things get messy and we can end up with the migration thread still trying to access freed structures. We now take a ref to the object around the migration thread itself, so the act of dropping the ref during exit doesn't cause us to lose the state until the thread quits. Cancelling the migration during migration also tries to get the thread to quit. We do this a bit earlier; so hopefully migration gets out of the way before all the devices etc are freed. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Tested-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20190227164900.16378-1-dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-03-05migration: Switch to using announce timerDr. David Alan Gilbert
Switch the announcements to using the new announce timer. Move the code that does it to announce.c rather than savevm because it really has nothing to do with the actual migration. Migration starts the announce from bh's and so they're all in the main thread/bql, and so there's never any racing with the timers themselves. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-03-05migration: Add announce parametersDr. David Alan Gilbert
Add migration parameters that control RARP/GARP announcement timeouts. Based on earlier patches by myself and Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2019-02-27migration: Add a VMSTATE_BOOL_TEST() macroCorey Minyard
This will be needed by coming I2C changes. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-01-23vmstate: constify SaveVMHandlersMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181114133139.27346-1-marcandre.lureau@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-01-21migration: Add post_save function to VMStateDescriptionAaron Lindsay
In some cases it may be helpful to modify state before saving it for migration, and then modify the state back after it has been saved. The existing pre_save function provides half of this functionality. This patch adds a post_save function to provide the second half. Signed-off-by: Aaron Lindsay <aclindsa@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20181211151945.29137-2-aaron@os.amperecomputing.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-11-27vmstate: constify VMStateFieldMarc-André Lureau
Because they are supposed to remain const. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181114132931.22624-1-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19COLO: Remove colo_state migration structZhang Chen
We need to know if migration is going into COLO state for incoming side before start normal migration. Instead by using the VMStateDescription to send colo_state from source side to destination side, we use MIG_CMD_ENABLE_COLO to indicate whether COLO is enabled or not. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Zhang Chen <zhangckid@gmail.com> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-10-19colo-compare: implement the process of checkpointZhang Chen
While do checkpoint, we need to flush all the unhandled packets, By using the filter notifier mechanism, we can easily to notify every compare object to do this process, which runs inside of compare threads as a coroutine. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Zhang Chen <zhangckid@gmail.com> Signed-off-by: Zhang Chen <chen.zhang@intel.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-08-14vmstate.h: Provide VMSTATE_UINT16_SUB_ARRAYLuc Michel
Provide a VMSTATE_UINT16_SUB_ARRAY macro to save a uint16_t sub-array in a VMState. Signed-off-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180727095421.386-5-luc.michel@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-15typedefs: add QJSONGreg Kurz
Since commit 83ee768d6247b, we now have two places that define the QJSON type: $ git grep 'typedef struct QJSON QJSON' include/migration/vmstate.h:typedef struct QJSON QJSON; migration/qjson.h:typedef struct QJSON QJSON; This breaks docker-test-build@centos6: In file included from /tmp/qemu-test/src/migration/savevm.c:59: /tmp/qemu-test/src/migration/qjson.h:16: error: redefinition of typedef 'QJSON' /tmp/qemu-test/src/include/migration/vmstate.h:30: note: previous declaration of 'QJSON' was here make: *** [migration/savevm.o] Error 1 This happens because CentOS 6 has an old GCC 4.4.7. Even if redefining a typedef with the same type is permitted since GCC 4.6, unless -pedantic is passed, we don't really need to do that on purpose. Let's have a single definition in <qemu/typedefs.h> instead. Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <152844714981.11789.3657734445739553287.stgit@bahia.lan> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-06-04Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into stagingPeter Maydell
acpi, vhost, misc: fixes, features vDPA support, fix to vhost blk RO bit handling, some include path cleanups, NFIT ACPI table. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Fri 01 Jun 2018 17:25:19 BST # 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: (31 commits) vhost-blk: turn on pre-defined RO feature bit ACPI testing: test NFIT platform capabilities nvdimm, acpi: support NFIT platform capabilities tests/.gitignore: add entry for generated file arch_init: sort architectures ui: use local path for local headers qga: use local path for local headers colo: use local path for local headers migration: use local path for local headers usb: use local path for local headers sd: fix up include vhost-scsi: drop an unused include ppc: use local path for local headers rocker: drop an unused include e1000e: use local path for local headers ioapic: fix up includes ide: use local path for local headers display: use local path for local headers trace: use local path for local headers migration: drop an unused include ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-01Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
* Linux header upgrade (Peter) * firmware.json definition (Laszlo) * IPMI migration fix (Corey) * QOM improvements (Alexey, Philippe, me) * Memory API cleanups (Jay, me, Tristan, Peter) * WHPX fixes and improvements (Lucian) * Chardev fixes (Marc-André) * IOMMU documentation improvements (Peter) * Coverity fixes (Peter, Philippe) * Include cleanup (Philippe) * -clock deprecation (Thomas) * Disable -sandbox unless CONFIG_SECCOMP (Yi Min Zhao) * Configurability improvements (me) # gpg: Signature made Fri 01 Jun 2018 17:42:13 BST # 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: (56 commits) hw: make virtio devices configurable via default-configs/ hw: allow compiling out SCSI memory: Make operations using MemoryRegionIoeventfd struct pass by pointer. char: Remove unwanted crlf conversion qdev: Remove DeviceClass::init() and ::exit() qdev: Simplify the SysBusDeviceClass::init path hw/i2c: Use DeviceClass::realize instead of I2CSlaveClass::init hw/i2c/smbus: Use DeviceClass::realize instead of SMBusDeviceClass::init target/i386/kvm.c: Remove compatibility shim for KVM_HINTS_REALTIME Update Linux headers to 4.17-rc6 target/i386/kvm.c: Handle renaming of KVM_HINTS_DEDICATED scripts/update-linux-headers: Handle kernel license no longer being one file scripts/update-linux-headers: Handle __aligned_u64 virtio-gpu-3d: Define VIRTIO_GPU_CAPSET_VIRGL2 elsewhere gdbstub: Prevent fd leakage docs/interop: add "firmware.json" ipmi: Use proper struct reference for KCS vmstate vmstate: Add a VSTRUCT type tcg: remove softfloat from --disable-tcg builds qemu-options: Mark the non-functional -clock option as deprecated ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-06-01migration: drop an unused includeMichael S. Tsirkin
In the vmstate.h file, we just need a struct name. Use a forward declaration instead of an include, then adjust the one affected .c file to include the file that is no longer implicit from the header. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2018-06-01vmstate: Add a VSTRUCT typeCorey Minyard
The VMS_STRUCT has no way to specify which version of a structure to use. Add a type and a new field to allow the specific version of a structure to be used. Signed-off-by: Corey Minyard <cminyard@mvista.com> Message-Id: <1524670052-28373-2-git-send-email-minyard@acm.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-05-31vmstate.h: Provide VMSTATE_BOOL_SUB_ARRAYPeter Maydell
Provide a VMSTATE_BOOL_SUB_ARRAY to go with VMSTATE_UINT8_SUB_ARRAY and friends. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20180521140402.23318-23-peter.maydell@linaro.org
2018-05-15migration: introduce SaveVMHandlers.resume_preparePeter Xu
This is hook function to be called when a postcopy migration wants to resume from a failure. For each module, it should provide its own recovery logic before we switch to the postcopy-active state. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20180502104740.12123-16-peterx@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2018-03-13migration: add postcopy migration of dirty bitmapsVladimir Sementsov-Ogievskiy
Postcopy migration of dirty bitmaps. Only named dirty bitmaps are migrated. If destination qemu is already containing a dirty bitmap with the same name as a migrated bitmap (for the same node), then, if their granularities are the same the migration will be done, otherwise the error will be generated. If destination qemu doesn't contain such bitmap it will be created. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20180313180320.339796-12-vsementsov@virtuozzo.com [Changed '+' to '*' as per list discussion. --js] Signed-off-by: John Snow <jsnow@redhat.com>
2018-03-13migration: add is_active_iterate handlerVladimir Sementsov-Ogievskiy
Only-postcopy savevm states (dirty-bitmap) don't need live iteration, so to disable them and stop transporting empty sections there is a new savevm handler. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 20180313180320.339796-10-vsementsov@virtuozzo.com
2018-03-13migration: introduce postcopy-only pendingVladimir Sementsov-Ogievskiy
There would be savevm states (dirty-bitmap) which can migrate only in postcopy stage. The corresponding pending is introduced here. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 20180313180320.339796-6-vsementsov@virtuozzo.com
2018-03-02Include less of the generated modular QAPI headersMarkus Armbruster
In my "build everything" tree, a change to the types in qapi-schema.json triggers a recompile of about 4800 out of 5100 objects. The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h, qapi-types.h. Each of these headers still includes all its shards. Reduce compile time by including just the shards we actually need. To illustrate the benefits: adding a type to qapi/migration.json now recompiles some 2300 instead of 4800 objects. The next commit will improve it further. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-24-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [eblake: rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-27 20:52:28 +0000