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2016-11-01tests: send error_report to test logPaolo Bonzini
Implement error_vprintf to send the output of error_report to the test log. This silences test-vmstate. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1477326663-67817-3-git-send-email-pbonzini@redhat.com>
2016-11-01qemu-error: remove dependency of stubs on monitorPaolo Bonzini
Leave the implementation of error_vprintf and error_vprintf_unless_qmp (the latter now trivially wrapped by error_printf_unless_qmp) to libqemustub.a and monitor.c. This has two advantages: it lets us remove the monitor_printf and monitor_vprintf stubs, and it lets tests provide a different implementation of the functions that uses g_test_message. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1477326663-67817-2-git-send-email-pbonzini@redhat.com>
2016-10-31Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.8' ↵Peter Maydell
into staging Migration bits from the COLO project # gpg: Signature made Sun 30 Oct 2016 10:39:55 GMT # gpg: using RSA key 0xEB0B4DFC657EF670 # gpg: Good signature from "Amit Shah <amit@amitshah.net>" # gpg: aka "Amit Shah <amit@kernel.org>" # gpg: aka "Amit Shah <amitshah@gmx.net>" # Primary key fingerprint: 48CA 3722 5FE7 F4A8 B337 2735 1E9A 3B5F 8540 83B6 # Subkey fingerprint: CC63 D332 AB8F 4617 4529 6534 EB0B 4DFC 657E F670 * remotes/amit-migration/tags/migration-for-2.8: MAINTAINERS: Add maintainer for COLO framework related files configure: Support enable/disable COLO feature docs: Add documentation for COLO feature COLO: Implement failover work for secondary VM COLO: Implement the process of failover for primary VM COLO: Introduce state to record failover process COLO: Add 'x-colo-lost-heartbeat' command to trigger failover COLO: Synchronize PVM's state to SVM periodically COLO: Add checkpoint-delay parameter for migrate-set-parameters COLO: Load VMState into QIOChannelBuffer before restore it COLO: Send PVM state to secondary side when do checkpoint COLO: Add a new RunState RUN_STATE_COLO COLO: Introduce checkpointing protocol COLO: Establish a new communicating path for COLO migration: Switch to COLO process after finishing loadvm migration: Enter into COLO mode after migration if COLO is enabled COLO: migrate COLO related info to secondary node migration: Introduce capability 'x-colo' to migration Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-30COLO: Add 'x-colo-lost-heartbeat' command to trigger failoverzhanghailiang
We leave users to choose whatever heartbeat solution they want, if the heartbeat is lost, or other errors they detect, they can use experimental command 'x_colo_lost_heartbeat' to tell COLO to do failover, COLO will do operations accordingly. For example, if the command is sent to the Primary side, the Primary side will exit COLO mode, does cleanup work, and then, PVM will take over the service work. If sent to the Secondary side, the Secondary side will run failover work, then takes over PVM's service work. Cc: Luiz Capitulino <lcapitulino@redhat.com> Cc: Eric Blake <eblake@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-30migration: Switch to COLO process after finishing loadvmzhanghailiang
Switch from normal migration loadvm process into COLO checkpoint process if COLO mode is enabled. We add three new members to struct MigrationIncomingState, 'have_colo_incoming_thread' and 'colo_incoming_thread' record the COLO related thread for secondary VM, 'migration_incoming_co' records the original migration incoming coroutine. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-30migration: Enter into COLO mode after migration if COLO is enabledzhanghailiang
Add a new migration state: MIGRATION_STATUS_COLO. Migration source side enters this state after the first live migration successfully finished if COLO is enabled by command 'migrate_set_capability x-colo on'. We reuse migration thread, so the process of checkpointing will be handled in migration thread. Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-30migration: Introduce capability 'x-colo' to migrationzhanghailiang
We add helper function colo_supported() to indicate whether colo is supported or not, with which we use to control whether or not showing 'x-colo' string to users, they can use qmp command 'query-migrate-capabilities' or hmp command 'info migrate_capabilities' to learn if colo is supported. The default value for COLO (COarse-Grain LOck Stepping) is disabled. Cc: Juan Quintela <quintela@redhat.com> Cc: Amit Shah <amit.shah@redhat.com> Cc: Eric Blake <eblake@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-28aio: introduce qemu_get_current_aio_contextPaolo Bonzini
This will be used by BDRV_POLL_WHILE (and thus by bdrv_drain) to choose how to wait for I/O completion. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1477565348-5458-12-git-send-email-pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2016-10-17tests: cleanup ptimer-testPaolo Bonzini
1) ptimer-test is not a qtest---it runs the ptimer.c code directly in the ptimer-test process 2) ptimer-test has its own stubs file, so there is no need to add more stubs to stubs/vmstate.c Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-12trace: remove global 'uint16 dstate[]' arrayDaniel P. Berrange
Instead of having a global dstate array, declare a single 'uint16 TRACE_${EVENT_NAME}_DSTATE' variable for each trace event. Record a pointer to this variable in the TraceEvent struct too. By turning trace_event_get_state_dynamic_by_id into a macro, this still hits the fast path, and cache affinity is ensured by declaring all the uint16 vars adjacent to each other. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1475588159-30598-7-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-29Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell
into staging # gpg: Signature made Wed 28 Sep 2016 22:30:45 BST # 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/tracing-pull-request: trace: Document the execution mode of guest events trace: Add event "guest_cpu_reset" trace: Add event "guest_cpu_enter" trace: Properly initialize dynamic event states in hot-plugged vCPUs trace: move hw/virtio/virtio-balloon.c trace points into correct file trace: move hw/mem/pc-dimm.c trace points into correct file trace: move util/qemu-coroutine*.c trace points into correct file trace: move util/buffer.c trace points into correct file Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-28trace: Properly initialize dynamic event states in hot-plugged vCPUsLluís Vilanova
Every time a vCPU is hot-plugged, it will "inherit" its tracing state from the global state array. That is, if *any* existing vCPU has an event enabled, new vCPUs will have too. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 147428970768.15111.7664565956870423529.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-27replay: allow replay stopping and restartingPavel Dovgalyuk
This patch fixes bug with stopping and restarting replay through monitor. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20160926080815.6992.71818.stgit@PASHA-ISP> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-23Merge remote-tracking branch 'remotes/famz/tags/various-pull-request' into ↵Peter Maydell
staging # gpg: Signature made Fri 23 Sep 2016 05:58:28 BST # gpg: using RSA key 0xCA35624C6A9171C6 # gpg: Good signature from "Fam Zheng <famz@redhat.com>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6 * remotes/famz/tags/various-pull-request: (23 commits) docker: exec $CMD docker: Terminate instances at SIGTERM and SIGHUP docker: Support showing environment information docker: Print used options before doing configure docker: Flatten default target list in test-quick docker: Update fedora image to latest docker: Generate /packages.txt in ubuntu image docker: Generate /packages.txt in fedora image docker: Generate /packages.txt in centos6 image tests: Ignore test-uuid Add UUID files to MAINTAINERS tests: Add uuid tests uuid: Tighten uuid parse vl: Switch qemu_uuid to QemuUUID configure: Remove detection code for UUID tests: No longer dependent on CONFIG_UUID crypto: Switch to QEMU UUID API vpc: Use QEMU UUID API vdi: Use QEMU UUID API vhdx: Use QEMU UUID API ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org> # Conflicts: # tests/Makefile.include
2016-09-23util: Add UUID APIFam Zheng
A number of different places across the code base use CONFIG_UUID. Some of them are soft dependency, some are not built if libuuid is not available, some come with dummy fallback, some throws runtime error. It is hard to maintain, and hard to reason for users. Since UUID is a simple standard with only a small number of operations, it is cleaner to have a central support in libqemuutil. This patch adds qemu_uuid_* functions that all uuid users in the code base can rely on. Except for qemu_uuid_generate which is new code, all other functions are just copy from existing fallbacks from other files. Note that qemu_uuid_parse is moved without updating the function signature to use QemuUUID, to keep this patch simple. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Message-Id: <1474432046-325-2-git-send-email-famz@redhat.com>
2016-09-22tests: Add ptimer testsDmitry Osipenko
Ptimer is a generic countdown timer helper that is used by many timer device models as well as by the QEMU core. Add QTests for the ptimer. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Message-id: 1de89fe6e1ccaf6c8071ee3469e1a844df948359.1473252818.git.digetx@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-06Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20160906-v2' into ↵Peter Maydell
staging First (big) chunk of s390x updates: - cpumodel support for s390x - various fixes and improvements # gpg: Signature made Tue 06 Sep 2016 16:09:53 BST # gpg: using RSA key 0xDECF6B93C6F02FAF # gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>" # gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" # Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF * remotes/cohuck/tags/s390x-20160906-v2: (38 commits) s390x/cpumodel: implement QMP interface "query-cpu-model-baseline" s390x/cpumodel: implement QMP interface "query-cpu-model-comparison" s390x/cpumodel: implement QMP interface "query-cpu-model-expansion" qmp: add QMP interface "query-cpu-model-baseline" qmp: add QMP interface "query-cpu-model-comparison" qmp: add QMP interface "query-cpu-model-expansion" s390x/kvm: don't enable key wrapping if msa3 is disabled s390x/kvm: let the CPU model control CMM(A) s390x/kvm: disable host model for problematic compat machines s390x/kvm: implement CPU model support s390x/kvm: allow runtime-instrumentation for "none" machine s390x/sclp: propagate hmfai s390x/sclp: propagate the mha via sclp s390x/sclp: propagate the ibc val (lowest and unblocked ibc) s390x/sclp: indicate sclp features s390x/sclp: introduce sclp feature blocks s390x/sclp: factor out preparation of cpu entries s390x/cpumodel: check and apply the CPU model s390x/cpumodel: let the CPU model handle feature checks s390x/cpumodel: expose features and feature groups as properties ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-06qmp: add QMP interface "query-cpu-model-baseline"David Hildenbrand
Let's provide a standardized interface to baseline two CPU models, to create a third, compatible one. This is especially helpful when two CPU models are not identical, but a CPU model is required that is guaranteed to run under both configurations, where the original models run. "query-cpu-model-baseline" takes two CPU models and returns a third, compatible model. The result will always be a static CPU model. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <20160905085244.99980-28-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-09-06qmp: add QMP interface "query-cpu-model-comparison"David Hildenbrand
Let's provide a standardized interface to compare two CPU models. "query-cpu-model-compare" takes two models and returns how they compare in a specific configuration. The result will give guarantees about runnability. E.g. if a CPU model A is a subset of CPU model B, model A is guaranteed to run in configurations where model B runs, but not the other way around (might or might not run). Usually, CPU features or CPU generations are used to calculate the result. If a model is not guaranteed to run in a certain environment (e.g. incompatible), a compatible one can be created by "baselining" both models (follow up patch). Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <20160905085244.99980-27-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-09-06qmp: add QMP interface "query-cpu-model-expansion"David Hildenbrand
Let's provide a standardized interface to expand CPU models. This interface can be used by tooling to get details about a specific CPU model in a certain configuration, e.g. about the "host" model. To take care of all architectures, two detail levels for an expansion are introduced. Certain architectures might not support all detail levels. While "full" will expand and indicate all relevant properties/features of a CPU model, "static" expands to a static base CPU model, that will never change between QEMU versions and therefore have the same features when used under different compatibility machines. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Message-Id: <20160905085244.99980-26-dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-09-05trace: Avoid implicit bool->integer conversionsLluís Vilanova
An explicit if/else is clearer than arithmetic assuming #true is 1, while the compiler should be able to generate just as optimal code. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 147194273830.26836.5875729707953474838.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-05trace: Remove 'trace_events_dstate_init'Lluís Vilanova
Removes the event state array used for early initialization. Since only events with the "vcpu" property need a late initialization fixup, threats their initialization specially. Assumes that the user won't touch the state of "vcpu" events between early and late initialization (e.g., through QMP). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 147194273191.26836.14423079546263831356.stgit@fimbulvetr.bsc.es Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-07-18trace: Add per-vCPU tracing states for events with the 'vcpu' propertyLluís Vilanova
Each vCPU gets a 'trace_dstate' bitmap to control the per-vCPU dynamic tracing state of events with the 'vcpu' property. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-24pc: acpi: introduce AcpiDeviceIfClass.madt_cpu hookIgor Mammedov
Add madt_cpu callback to AcpiDeviceIfClass and use it for generating LAPIC MADT entries for CPUs. Later it will be used for generating x2APIC entries in case of more than 255 CPUs and also would be reused by ARM target when ACPI CPU hotplug is introduced there. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-24acpi: Add IPMI table entriesCorey Minyard
Use the ACPI table construction tools to create an ACPI entry for IPMI. This adds a function called build_acpi_ipmi_devices to add an DSDT entry for IPMI if IPMI is compiled in and an IPMI device exists. It also adds a dummy function if IPMI is not compiled in. This conforms to section "C3-2 Locating IPMI System Interfaces in ACPI Name Space" in the IPMI 2.0 specification. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-24ipmi: Add SMBIOS table entryCorey Minyard
Add an IPMI table entry to the SMBIOS. Signed-off-by: Corey Minyard <cminyard@mvista.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-05-19qemu-common: stop including qemu/host-utils.h from qemu-common.hPaolo Bonzini
Move it to the actual users. There are some inclusions of qemu/host-utils.h in headers, but they are all necessary. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19include: move CPU-related definitions out of qemu-common.hPaolo Bonzini
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-22event-notifier: Add "is_external" parameterFam Zheng
All callers pass "false" keeping the old semantics. The windows implementation doesn't distinguish the flag yet. On posix, it is passed down to the underlying aio context. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-04-22iohandler: Introduce iohandler_get_aio_contextFam Zheng
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-30replay: introduce block devices record/replayPavel Dovgalyuk
This patch introduces block driver that implement recording and replaying of block devices' operations. All block completion operations are added to the queue. Queue is flushed at checkpoints and information about processed requests is recorded to the log. In replay phase the queue is matched with events read from the log. Therefore block devices requests are processed deterministically. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> [ kwolf: Rebased onto modified and already applied part of the series ] Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-22Clean up includes some moreMarkus Armbruster
Manually drop redundant includes that scripts/clean-includes misses, e.g. because they're hidden in generator programs, or they use the wrong kind of delimiter. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22Use scripts/clean-includes to drop redundant qemu/typedefs.hMarkus Armbruster
Re-run scripts/clean-includes to apply the previous commit's corrections and updates. Besides redundant qemu/typedefs.h, this only finds a redundant config-host.h include in ui/egl-helpers.c. No idea how that escaped the previous runs. Some manual whitespace trimming around dropped includes squashed in. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22include/qemu/osdep.h: Don't include qapi/error.hMarkus Armbruster
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the Error typedef. Since then, we've moved to include qemu/osdep.h everywhere. Its file comment explains: "To avoid getting into possible circular include dependencies, this file should not include any other QEMU headers, with the exceptions of config-host.h, compiler.h, os-posix.h and os-win32.h, all of which are doing a similar job to this file and are under similar constraints." qapi/error.h doesn't do a similar job, and it doesn't adhere to similar constraints: it includes qapi-types.h. That's in excess of 100KiB of crap most .c files don't actually need. Add the typedef to qemu/typedefs.h, and include that instead of qapi/error.h. Include qapi/error.h in .c files that need it and don't get it now. Include qapi-types.h in qom/object.h for uint16List. Update scripts/clean-includes accordingly. Update it further to match reality: replace config.h by config-target.h, add sysemu/os-posix.h, sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h comment quoted above similarly. This reduces the number of objects depending on qapi/error.h from "all of them" to less than a third. Unfortunately, the number depending on qapi-types.h shrinks only a little. More work is needed for that one. Signed-off-by: Markus Armbruster <armbru@redhat.com> [Fix compilation without the spice devel packages. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-17block: Add bdrv_next_monitor_owned()Max Reitz
Add a function for iterating over all monitor-owned BlockDriverStates so the generic block layer can do so. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-17block: Move some bdrv_*_all() functions to BBMax Reitz
Move bdrv_commit_all() and bdrv_flush_all() to the BlockBackend level. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-03-15icount: decouple warp callsPavel Dovgalyuk
qemu_clock_warp function is called to update virtual clock when CPU is sleeping. This function includes replay checkpoint to make execution deterministic in icount mode. Record/replay module flushes async event queue at checkpoints. Some of the events (e.g., block devices operations) include interaction with hardware. E.g., APIC polled by block devices sets one of IRQ flags. Flag to be set depends on currently executed thread (CPU or iothread). Therefore in replay mode we have to process the checkpoints in the same thread as they were recorded. qemu_clock_warp function (and its checkpoint) may be called from different thread. This patch decouples two different execution cases of this function: call when CPU is sleeping from iothread and call from cpu thread to update virtual clock. First task is performed by qemu_start_warp_timer function. It sets warp timer event to the moment of nearest pending virtual timer. Second function (qemu_account_warp_timer) is called from cpu thread before execution of the code. It advances virtual clock by adding the length of period while CPU was sleeping. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20160310115609.4812.44986.stgit@PASHA-ISP> [Update docs. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-15replay: character devicesPavel Dovgalyuk
This patch implements record and replay of character devices. It records chardevs communication in replay mode. Recorded information include data read from backend and counter of bytes written from frontend to backend to preserve frontend internal state. If character device was configured through the command line in record mode, then in replay mode it should be also added to command line. Backend of the character device could be changed in replay mode. Replaying of devices that perform ioctl and get_msgfd operations is not supported. gdbstub which also acts as a backend is not recorded to allow controlling the replaying through gdb. Monitor backends are also not recorded. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20160314074436.4980.83856.stgit@PASHA-ISP> [Add stubs. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-01typedefs: Add CPUStateLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 145641861239.30295.8564457138934628740.stgit@localhost Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-02-23move get_current_ram_size to virtio-balloon.cVladimir Sementsov-Ogievskiy
get_current_ram_size() is used only in virtio-balloon.c This patch moves it into virtio-balloon and make it static, to allow some balloon-specific tuning. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-02-16all: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-04stubs: Clean up includesPeter Maydell
Clean up includes so that osdep.h is included first and headers which it implies are not included manually. This commit was created with scripts/clean-includes. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1454089805-5470-3-git-send-email-peter.maydell@linaro.org
2016-02-02blockdev: Keep track of monitor-owned BDSMax Reitz
As a side effect, we can now make x-blockdev-del's check whether a BDS is actually owned by the monitor explicit. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-12-17kvm: x86: add support for KVM_CAP_SPLIT_IRQCHIPPaolo Bonzini
This patch adds support for split IRQ chip mode. When KVM_CAP_SPLIT_IRQCHIP is enabled: 1.) The PIC, PIT, and IOAPIC are implemented in userspace while the LAPIC is implemented by KVM. 2.) The software IOAPIC delivers interrupts to the KVM LAPIC via kvm_set_irq. Interrupt delivery is configured via the MSI routing table, for which routes are reserved in target-i386/kvm.c then configured in hw/intc/ioapic.c 3.) KVM delivers IOAPIC EOIs via a new exit KVM_EXIT_IOAPIC_EOI, which is handled in target-i386/kvm.c and relayed to the software IOAPIC via ioapic_eoi_broadcast. Signed-off-by: Matt Gingell <gingell@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-02main-loop: suppress warnings under qtestMichael S. Tsirkin
commit 01c22f2cdd4fcf02276ea10f48253850a5fd7259 ("main-loop: Suppress "I/O thread spun" warnings for qtest") doesn't actually disable the warning for everyone since some tests don't run under the qtest accelerator. Check qtest_driver instead. Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <1448882964-22433-1-git-send-email-mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-12monitor/target-ppc: Define target_get_monitor_defAlexey Kardashevskiy
At the moment get_monitor_def() returns only registers from statically defined monitor_defs array. However there is a lot of BOOK3S SPRs which are not in the list and cannot be printed from the monitor. This adds a new target platform hook - target_get_monitor_def(). The hook is called if a register was not found in the static array returned by the target_monitor_defs() hook. The hook is only defined for POWERPC, it returns registered SPRs and fails on unregistered ones providing the user with information on what is actually supported on the running CPU. The register value is saved as uint64_t as it is the biggest supported register size; target_ulong cannot be used because of the stub - it is in a "common" code and cannot include "cpu.h", etc; this is also why the hook prototype is redefined in the stub instead of being included from some header. This replaces static descriptors for GPRs, FPRs, SRs with a helper which looks for a value in a corresponding array in the CPUPPCState. The immediate effect is that all 32 SRs can be printed now (instead of 16); later this can be reused for VSX or TM registers. This replaces callbacks for MSR and XER with static descriptors in monitor_defs as they are stored in CPUPPCState. While we are here, this adds "cr" as a synonym of "ccr". Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-06replay: initialization and deinitializationPavel Dovgalyuk
This patch introduces the functions for enabling the record/replay and for freeing the resources when simulator closes. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162507.8676.90232.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
2015-11-06replay: checkpointsPavel Dovgalyuk
This patch introduces checkpoints that synchronize cpu thread and iothread. When checkpoint is met in the code all asynchronous events from the queue are executed. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162444.8676.52916.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
2015-11-06replay: recording and replaying clock ticksPavel Dovgalyuk
Clock ticks are considered as the sources of non-deterministic data for virtual machine. This patch implements saving the clock values when they are acquired (virtual, host clock). When replaying the execution corresponding values are read from log and transfered to the module, which wants to read the values. Such a design required the clock polling to be synchronized. Sometimes it is not true - e.g. when timeouts for timer lists are checked. In this case we use a cached value of the clock, passing it to the client code. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162427.8676.36558.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
2015-11-06replay: interrupts and exceptionsPavel Dovgalyuk
This patch includes modifications of common cpu files. All interrupts and exceptions occured during recording are written into the replay log. These events allow correct replaying the execution by kicking cpu thread when one of these events is found in the log. Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru> Message-Id: <20150917162416.8676.57647.stgit@PASHA-ISP.def.inno> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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