- 29 3月, 2013 5 次提交
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由 KONRAD Frederic 提交于
Here the virtio-balloon-ccw is modified for the new API. The device virtio-balloon-ccw extends virtio-ccw-device as before. It creates and connects a virtio-balloon during the init. The properties are not modified. Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1364377755-15508-4-git-send-email-fred.konrad@greensocs.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 KONRAD Frederic 提交于
Here the virtio-balloon-pci is modified for the new API. The device virtio-balloon-pci extends virtio-pci. It creates and connects a virtio-balloon during the init. The properties are not changed. Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1364377755-15508-3-git-send-email-fred.konrad@greensocs.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 KONRAD Frederic 提交于
Create virtio-balloon which extends virtio-device, so it can be connected on virtio-bus. Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com> Reviewed-by: NPeter Maydell <peter.maydell@linaro.org> Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com> Message-id: 1364377755-15508-2-git-send-email-fred.konrad@greensocs.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
# By Kevin Wolf (22) and Peter Lieven (1) # Via Stefan Hajnoczi * stefanha/block: (23 commits) block: Fix direct use of protocols as driver for bdrv_open() qcow2: Gather clusters in a looping loop qcow2: Move cluster gathering to a non-looping loop qcow2: Allow requests with multiple l2metas qcow2: Use byte granularity in qcow2_alloc_cluster_offset() qcow2: Prepare handle_alloc/copied() for byte granularity qcow2: handle_copied(): Implement non-zero host_offset qcow2: handle_copied(): Get rid of keep_clusters parameter qcow2: handle_copied(): Get rid of nb_clusters parameter qcow2: Factor out handle_copied() qcow2: Clean up handle_alloc() qcow2: Finalise interface of handle_alloc() qcow2: handle_alloc(): Get rid of keep_clusters parameter qcow2: handle_alloc(): Get rid of nb_clusters parameter qcow2: Factor out handle_alloc() qcow2: Decouple cluster allocation from cluster reuse code qcow2: Change handle_dependency to byte granularity qcow2: Improve check for overlapping allocations qcow2: Handle dependencies earlier qcow2: Remove bogus unlock of s->lock ...
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由 Anthony Liguori 提交于
# By Lluís Vilanova (7) and others # Via Stefan Hajnoczi * stefanha/tracing: vl: add runstate_set tracepoint .gitignore: rename trace/generated-tracers.dtrace .gitignore: add trace/generated-events.[ch] trace: rebuild generated-events.o when configuration changes trace: [stderr] Port to generic event information and new control interface trace: [simple] Port to generic event information and new control interface trace: [default] Port to generic event information and new control interface trace: [monitor] Use new event control interface trace: Provide a detailed event control interface trace: Provide a generic tracing event descriptor trace: [tracetool] Explicitly identify public backends
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- 28 3月, 2013 34 次提交
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由 Kazuya Saito 提交于
This patch enables us to know RunState transition. It will be userful for investigation when the trouble occured in special event such like live migration, shutdown, suspend, and so on. Signed-off-by: NKazuya Saito <saito.kazuya@jp.fujitsu.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Stefan Hajnoczi 提交于
For a while the file was called trace/generated-tracers-dtrace.dtrace but today it's called trace/generated-tracers.dtrace. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Stefan Hajnoczi 提交于
Don't display autogenerated files in git-status(1). Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Stefan Hajnoczi 提交于
Make sure to rebuild generated-events.o when ./configure options change. This prevents linker errors when a stale generated-events.o gets linked with code compiled against fresh headers. For example, try building with ./configure --enable-trace-backend=stderr followed by ./configure --enable-trace-backend=dtrace. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
The backend is forced to dump event numbers using 64 bits, as TraceEventID is an enum. Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
This interface decouples event obtaining from interaction. Events can be obtained through three different methods: * identifier * name * simple wildcard pattern Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
Uses tracetool to generate a backend-independent tracing event description (struct TraceEvent). The values for such structure are generated with the non-public "events" backend ("events-c" frontend). The generation of the defines to check if an event is statically enabled is also moved to the "events" backend ("events-h" frontend). Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Lluís Vilanova 提交于
Public backends are those printed by "--list-backends" and thus considered valid by the configure script. Signed-off-by: NLluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
bdrv_open_common() implements direct use of protocols by copying the pre-opened BlockDriverStates to bs using bdrv_swap(). It did however first set some fields in bs, which end up in file after the swap. When bdrv_open() destroys file, it appears to be open, and because it isn't, qemu could segfault while trying to close it. Reorder the operations to return immediately in such cases so that file is correctly detected as closed. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Instead of just checking once in exactly this order if there are dependendies, non-COW clusters and new allocation, this starts looping around these. This way we can, for example, gather non-COW clusters after new allocations as long as the host cluster offsets stay contiguous. Once handle_dependencies() is extended so that COW areas of in-flight allocations can be overwritten, this allows to continue with gathering other clusters (we wouldn't be able to do that without this change because we would have missed a possible second dependency in one of the next clusters). This means that in the typical sequential write case, we can combine the COW overwrite of one cluster with the allocation of the next cluster as soon as something like Delayed COW gets actually implemented. It is only by avoiding splitting requests this way that Delayed COW actually starts improving performance noticably. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This patch is mainly to separate the indentation change from the semantic changes. All that really changes here is that everything moves into a while loop, all 'goto done' become 'break' and at the end of the loop a new 'break is inserted. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Instead of expecting a single l2meta, have a list of them. This allows to still have a single I/O request for the guest data, even though multiple l2meta may be needed in order to describe both a COW overwrite and a new cluster allocation (typical sequential write case). Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This gets rid of the nb_clusters and keep_clusters and the associated complicated calculations. Just advance the number of bytes that have been processed and everything is fine. This patch advances the variables even after the last operation even though they aren't used any more afterwards to make things look more uniform. A later patch will turn the whole thing into a loop and then it actually starts making sense. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This makes handle_alloc() and handle_copied() return byte-granularity host offsets instead of returning always the cluster start. This is required so that qcow2_alloc_cluster_offset() can stop aligning everything to cluster boundaries. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Look only for clusters that start at a given physical offset. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Now *bytes is used to return the length of the area that can be written to without performing an allocation or COW. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
handle_copied() uses its bytes parameter now to determine how many clusters it should try to find. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Things can be simplified a bit now. No semantic changes. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
The interface works completely on a byte granularity now and duplicated parameters are removed. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
handle_alloc() is now called with the offset at which the actual new allocation starts instead of the offset at which the whole write request starts, part of which may already be processed. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
We already communicate the same information in *bytes. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This moves some code that prepares the allocation of new clusters to where the actual allocation happens. This is the minimum required to be able to move it to a separate function in the next patch. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This is a more precise description of what really constitutes a dependency. The behaviour doesn't change at this point because the COW area of the old request is still aligned to cluster boundaries and therefore an overlap is detected wheneven the requests touch any part of the same cluster. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
The old code detected an overlapping allocation even when the allocations didn't actually overlap, but were only adjacent. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Handling overlapping allocations isn't just a detail of cluster allocation. It is rather one of three ways to get the host cluster offset for a write request: 1. If a request overlaps an in-flight allocations, the cluster offset can be taken from there (this is what handle_dependencies will evolve into) or the request must just wait until the allocation has completed. Accessing the L2 is not valid in this case, it has outdated information. 2. Outside overlapping areas, check the clusters that can be written to as they are, with no COW involved. 3. If a COW is required, allocate new clusters Changing the code to reflect this doesn't change the behaviour because overlaps cannot exist for clusters that are kept in step 2. It does however make it easier for later patches to work on clusters that belong to an allocation that is still in flight. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
The unlock wakes up the next coroutine, but the currently running coroutine will lock it again before it yields, so this doesn't make a lot of sense. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
This should be based on the virtual disk size, not on the size of the image. Interesting observation: With some VM state stored in the image file, percentages higher than 100% are possible, even though snapshots themselves are ignored. This is a qcow2 bug to be fixed another day: The VM state should be discarded in the active L2 tables after completing the snapshot creation. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Kevin Wolf 提交于
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Peter Lieven 提交于
commit 4d454574 "qemu-option: move standard option definitions out of qemu-config.c" broke support for commandline option groups that where registered during bdrv_init(). In particular support for -iscsi options was broken since that commit. Fix by moving the bdrv_init_with_whitelist() before command line argument parsing. Signed-off-by: NPeter Lieven <pl@kamp.de> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 27 3月, 2013 1 次提交
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由 Hans de Goede 提交于
Now that the core takes care of fe_open tracking we no longer need this hack. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Message-id: 1364292483-16564-12-git-send-email-hdegoede@redhat.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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