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2013-01-05softfloat: Implement uint64_to_float128Richard Henderson1-0/+3
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-02iov: add qemu_iovec_concat_iov()Stefan Hajnoczi1-0/+3
The qemu_iovec_concat() function copies a subset of a QEMUIOVector. The new qemu_iovec_concat_iov() function does the same for a iov/cnt pair. It is easy to define qemu_iovec_concat() in terms of qemu_iovec_concat_iov(). The existing code is mostly unchanged, except for the assertion src->size >= soffset, which cannot be efficiently checked upfront on a iov/cnt pair. Instead we assert upon hitting the end of src with an unsatisfied soffset. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-02iov: add iov_discard_front/back() to remove dataStefan Hajnoczi1-0/+13
The iov_discard_front/back() functions remove data from the front or back of the vector. This is useful when peeling off header/footer structs. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-02raw-posix: add raw_get_aio_fd() for virtio-blk-data-planeStefan Hajnoczi1-0/+9
The raw_get_aio_fd() function allows virtio-blk-data-plane to get the file descriptor of a raw image file with Linux AIO enabled. This interface is really a layering violation that can be resolved once the block layer is able to run outside the global mutex - at that point virtio-blk-data-plane will switch from custom Linux AIO code to using the block layer. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-28Disable semaphores fallback code for OpenBSDBrad Smith1-1/+1
Disable the semaphores fallback code for OpenBSD as modern OpenBSD releases now have sem_timedwait(). Signed-off-by: Brad Smith <brad@comstyle.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-12-23Merge branch 'master' of git://git.qemu.org/qemu into qom-cpuAndreas Färber134-7/+18283
Adapt header include paths. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-20migration: merge QEMUFileBuffered into MigrationStateJuan Quintela1-0/+8
Avoid splitting the state of outgoing migration, more or less arbitrarily, between two data structures. QEMUFileBuffered anyway is used only during migration. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20memory: introduce memory_region_test_and_clear_dirtyJuan Quintela1-0/+16
This function avoids having to do two calls, one to test the dirty bit, and other to reset it. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20migration: Inline qemu_fopen_ops_buffered into migrate_fd_connectJuan Quintela1-2/+0
Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20migration: move migration_fd_put_ready()Juan Quintela1-1/+0
Put it near its use and un-export it. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20migration: move buffered_file.c code into migration.cJuan Quintela1-0/+1
This only moves the code (also from buffered_file.h to migration.h). Fix whitespace until checkpatch is happy. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20savevm: New save live migration method: pendingJuan Quintela3-1/+3
Code just now does (simplified for clarity) if (qemu_savevm_state_iterate(s->file) == 1) { vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); qemu_savevm_state_complete(s->file); } Problem here is that qemu_savevm_state_iterate() returns 1 when it knows that remaining memory to sent takes less than max downtime. But this means that we could end spending 2x max_downtime, one downtime in qemu_savevm_iterate, and the other in qemu_savevm_state_complete. Changed code to: pending_size = qemu_savevm_state_pending(s->file, max_size); DPRINTF("pending size %lu max %lu\n", pending_size, max_size); if (pending_size >= max_size) { ret = qemu_savevm_state_iterate(s->file); } else { vm_stop_force_state(RUN_STATE_FINISH_MIGRATE); qemu_savevm_state_complete(s->file); } So what we do is: at current network speed, we calculate the maximum number of bytes we can sent: max_size. Then we ask every save_live section how much they have pending. If they are less than max_size, we move to complete phase, otherwise we do an iterate one. This makes things much simpler, because now individual sections don't have to caluclate the bandwidth (it was implossible to do right from there). Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-20migration: remove unfreeze logicJuan Quintela1-1/+0
Now that we have a thread, and blocking writes, we don't need it. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-20migration: make writes blockingJuan Quintela1-5/+0
Move all the writes to the migration_thread, and make writings blocking. Notice that are still using the iothread for everything that we do. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20migration: move migration thread init code to migrate_fd_put_readyJuan Quintela1-0/+1
This way everything related with migration is run on the migration thread and no locking is needed. Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20migration: make qemu_fopen_ops_buffered() return voidJuan Quintela1-0/+1
We want the file assignment to happen before the thread is created to avoid locking, so we just do it before creating the thread. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2012-12-20protect the ramlist with a separate mutexUmesh Deshpande1-0/+9
Add the new mutex that protects shared state between ram_save_live and the iothread. If the iothread mutex has to be taken together with the ramlist mutex, the iothread shall always be _outside_. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Umesh Deshpande <udeshpan@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2012-12-20add a version number to ram_listUmesh Deshpande1-0/+1
This will be used to detect if last_block might have become invalid across different calls to ram_save_live. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Umesh Deshpande <udeshpan@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com>
2012-12-20exec: change RAM list to a TAILQPaolo Bonzini1-2/+2
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-20exec: change ramlist from MRU order to a 1-item cachePaolo Bonzini1-0/+1
Most of the time, only 2 items will be active (from/to for a string operation, or code/data). But TCG guests likely won't have gigabytes of memory, so this actually goes down to 1 item. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2012-12-19Merge remote-tracking branch 'bonzini/header-dirs' into stagingAnthony Liguori134-7/+18246
* bonzini/header-dirs: (45 commits) janitor: move remaining public headers to include/ hw: move executable format header files to hw/ fpu: move public header file to include/fpu softmmu: move remaining include files to include/ subdirectories softmmu: move include files to include/sysemu/ misc: move include files to include/qemu/ qom: move include files to include/qom/ migration: move include files to include/migration/ monitor: move include files to include/monitor/ exec: move include files to include/exec/ block: move include files to include/block/ qapi: move include files to include/qobject/ janitor: add guards to headers qapi: make struct Visitor opaque qapi: remove qapi/qapi-types-core.h qapi: move inclusions of qemu-common.h from headers to .c files ui: move files to ui/ and include/ui/ qemu-ga: move qemu-ga files to qga/ net: reorganize headers net: move net.c to net/ ... Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-19cpu: Move kvm_run into CPUStateAndreas Färber1-0/+2
Pass CPUState / {X86,S390}CPU to helper functions. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Move kvm_state field into CPUStateAndreas Färber1-0/+3
Adapt some functions to take CPUState / {PowerPC,S390}CPU argument. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19kvm: Pass CPUState to kvm_arch_*Andreas Färber1-0/+1
Move kvm_vcpu_dirty field into CPUState to simplify things and change its type to bool while at it. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19cpu: Move kvm_fd into CPUStateAndreas Färber1-0/+5
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-19janitor: move remaining public headers to include/Paolo Bonzini4-0/+1767
Headers in the root directory are now used only from within that directory. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19fpu: move public header file to include/fpuPaolo Bonzini2-1/+639
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19softmmu: move remaining include files to include/ subdirectoriesPaolo Bonzini2-0/+274
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19softmmu: move include files to include/sysemu/Paolo Bonzini16-1/+1343
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19misc: move include files to include/qemu/Paolo Bonzini60-38/+4359
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19qom: move include files to include/qom/Paolo Bonzini5-4/+4
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19migration: move include files to include/migration/Paolo Bonzini6-1/+1035
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19monitor: move include files to include/monitor/Paolo Bonzini5-4/+160
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19exec: move include files to include/exec/Paolo Bonzini23-0/+4065
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19block: move include files to include/block/Paolo Bonzini9-0/+1743
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19qapi: move include files to include/qobject/Paolo Bonzini27-5/+1208
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19ui: move files to ui/ and include/ui/Paolo Bonzini5-0/+790
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19net: reorganize headersPaolo Bonzini5-0/+376
Move public headers to include/net, and leave private headers in net/. Put the virtio headers in include/net/tap.h, removing the multiple copies that existed. Leave include/net/tap.h as the interface for NICs, and net/tap_int.h as the interface for OS-specific parts of the tap backend. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-12-19build: kill libdis, move disassemblers to disas/Paolo Bonzini2-0/+526
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-30stream: fix ratelimit_set_speedDietmar Maurer1-1/+1
The formula to compute slice_quota was wrong since commit 6ef228fc. Signed-off-by: Dietmar Maurer <dietmar@proxmox.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-11-26virtio-rng: fix typos, commentsAmit Shah1-3/+3
Fix typos, whitespace and update comments to match current implementation. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26qom: make object_finalize staticPaolo Bonzini1-9/+0
It is not used anymore, and there is no need to make it public. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26qom: make object_delete usable for statically-allocated objectsPaolo Bonzini1-0/+9
Store in the object the freeing function that will be used at deletion time. This makes it possible to use object_delete on statically-allocated (embedded) objects. Dually, it makes it possible to use object_unparent and object_unref without leaking memory, when the lifetime of object might extend until after the call to object_delete. Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26qdev: move bus removal to object_unparentPaolo Bonzini1-0/+11
Add an ObjectClass method that is done at object_unparent time. It should remove any backlinks to the object in the composition tree, so that object_delete will be able to drop the last reference and free the object. Use it for qdev buses. Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-16rng-random: add an RNG backend that uses /dev/random (v3)Anthony Liguori1-0/+22
The filename can be overridden but it expects a non-blocking source of entropy. A typical invocation would be: qemu -object rng-random,id=rng0 -device virtio-rng-pci,rng=rng0 This can also be used with /dev/urandom by using the command line: qemu -object rng-random,filename=/dev/urandom,id=rng0 \ -device virtio-rng-pci,rng=rng0 Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> --- v1 -> v2 - merged header split patch into this one v2 -> v3 - bug fix in rng-random (Paolo)
2012-11-16rng: add RndBackend abstract object classAnthony Liguori1-0/+93
This is the backend used by devices that need to request entropy. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-16object: add object_property_add_bool (v2)Anthony Liguori1-0/+16
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> --- v1 -> v2 - Fix whitespace (Andreas Faerber)
2012-10-31cpu: Move thread_id to CPUStateAndreas Färber1-0/+1
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31cpus: Pass CPUState to run_on_cpu()Andreas Färber1-0/+10
CPUArchState is no longer needed. Move the declaration to include/qemu/cpu.h and add documentation. Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-10-31cpus: Pass CPUState to [qemu_]cpu_has_work()Andreas Färber1-0/+10
For target-mips also change the return type to bool. Make include paths for cpu-qom.h consistent for alpha and unicore32. Signed-off-by: Andreas Färber <afaerber@suse.de> [AF: Updated new target-openrisc function accordingly] Acked-by: Richard Henderson <rth@twiddle.net> (for alpha)
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