The newly added type parameter for the QUORUM_REPORT_BAD event changed
the output of iotest 081, so the reference should be amended
accordingly.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 1457705687-27122-1-git-send-email-mreitz@redhat.com
Reviewed-by: Alberto Garcia <berto@igalia.com>
The only code change is making bdrv_dirty_bitmap_truncate public. It is
used in block.c.
Also two long lines (bdrv_get_dirty) are wrapped.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1457412306-18940-5-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Following patches to refactor and move block dirty bitmap code could use
this.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1457412306-18940-4-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
"s->bitmap" tracks done sectors, we only check bit states without using any
iterator which HBitmap is good for. Switch to "Bitmap" which is simpler and
more memory efficient.
Meanwhile, rename it to done_bitmap, to reflect the intention.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 1457412306-18940-2-git-send-email-famz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Version: GnuPG v1
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
# gpg: Signature made Mon 14 Mar 2016 11:27:01 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/tracing-pull-request:
trace: separate MMIO tracepoints from TB-access tracepoints
trace: include CPU index in trace_memory_region_*()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
All users of the block layers are supposed to go through a BlockBackend.
The .bdrv_create() implementation is one such user, so this patch
converts it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
We check that the guest can't write beyond the end of its disk, but for
other internal users it can make sense to allow growing a file.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Now that we can use drive_add to create new nodes without a BB, we also
want to be able to delete such nodes again.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This patch adds an option to the drive_add HMP command to create only a
BlockDriverState without a BlockBackend on top.
The motivation for this is that libvirt needs to specify options to a
migration target (specifically, detect-zeroes). drive-mirror doesn't
allow specifying options, and the proper way to do this is to create the
target BDS separately with blockdev-add (where you can specify options)
and then use blockdev-mirror to that BDS.
However, libvirt can't use blockdev-add as long as it is still
experimental, and we're expecting that it will still take some time, so
we need to resort to drive_add.
The problem with drive_add is that so far it always created a BB, and
BDSes with a BB can't be used as a mirroring target as long as we don't
support multiple BBs per BDS - and while we're working towards that
goal, it's another thing that will still take some time.
So to achieve the goal, the simplest solution to provide the
functionality now without adding one-off options to the mirror QMP
commands is to extend drive_add to create nodes without BBs.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
It is only called once for each opened image, so we can do it the easy
way.
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Without setting explicit defaults in the options, blockdev-add without
an ID ended up defaulting to writethrough. It should be writeback as
documented.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Since commit 91a097e, we end up with a somewhat weird cache mode
configuration with snapshot=on: The commit broke the cache mode
inheritance for the snapshot overlay so that it is opened as
writethrough instead of unsafe now. The following bdrv_append() call to
put it on top of the tree swaps the WCE flag with the snapshot's backing
file (i.e. the originally given file), so what we eventually get is
cache=writeback on the temporary overlay and
cache=writethrough,cache.no-flush=on on the real image file.
This patch changes things so that the temporary overlay gets
cache=unsafe again like it used to, and the real images get whatever the
user specified. This means that cache.direct is now respected even with
snapshot=on, and in the case of committing changes, the final flush is
no longer ignored except explicitly requested by the user.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Calling bdrv_img_create() with a size of -1 means that it determines the
size automatically by opening the backing file. However, in the case of
live snapshots, the backing file is already opened and we must avoid
opening the same image twice at the same time. Apart from that, just
getting the size from the already existing BDS is a lot less overhead
than opening a new instance.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Keep flush interface the same logic as quorum read/write, Otherwise in
following scenario, we'll encounter unexpected errors.
Quorum has two children(A, B). A do flush sucessfully, but B flush failed.
This cause the filesystem of guest become read-only with following errors:
end_request: I/O error, dev vda, sector 11159960
Aborting journal on device vda3-8
EXT4-fs error (device vda3): ext4_journal_start_sb:327: Detected abort journal
EXT4-fs (vda3): Remounting filesystem read-only
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Introduce QuorumOpType, and make QUORUM_REPORT_BAD compatible
with it.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
When QEMU creates a VHD image, it goes by the original spec,
calculating the current_size based on the nearest CHS geometry (with an
exception for disks > 127GB).
Apparently, Azure will only allow images that are sized to the nearest
MB, and the current_size as calculated from CHS cannot guarantee that.
Allow QEMU to create images similar to how Hyper-V creates images, by
setting current_size to the specified virtual disk size. This
introduces an option, force_size, to be passed to the vpc format during
image creation, e.g.:
qemu-img convert -f raw -o force_size -O vpc test.img test.vhd
When using the "force_size" option, the creator app field used by
QEMU will be "qem2" instead of "qemu", to indicate the difference.
In light of this, we also add parsing of the "qem2" field during
vpc_open.
Bug reference: https://bugs.launchpad.net/qemu/+bug/1490611
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This tests auto-detection, and overrides, of VHD image sizes created
by Virtual PC, Hyper-V, and Disk2vhd.
This adds three sample images:
hyperv2012r2-dynamic.vhd.bz2 - dynamic VHD image created with Hyper-V
virtualpc-dynamic.vhd.bz2 - dynamic VHD image created with Virtual PC
d2v-zerofilled.vhd.bz2 - dynamic VHD image created with Disk2vhd
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The VHD file format is used by both Virtual PC, and Hyper-V. However,
how the virtual disk size is calculated varies between the two.
Virtual PC uses the CHS drive parameters to determine the drive size.
Hyper-V, on the other hand, uses the current_size field in the footer
when determining image size.
This is problematic for a few reasons:
* VHD images from Hyper-V, using CHS calculations, will likely be
trunctated.
* If we just rely always on current_size, then QEMU may have data
compatibility issues with Virtual PC (we may write too much data
into a VHD file to be used by Virtual PC, for instance).
* Existing VHD images created by QEMU have used the CHS calculations,
except for images exceeding the 127GB limit. We want to remain
compatible with our own generated images.
Luckily, the VHD specification defines a 'Creator App' field, that is
used to indicate what software created the VHD file.
This patch does two things:
1. Uses the 'Creator App' field to help determine how to calculate
size, and
2. Adds a VPC format option 'force_size_calc', so that the user can
override the 'Creator App' auto-detection, in case there exist
VHD images with unknown or contradictory 'Creator App' entries.
N.B.: We currently use the maximum CHS value as an indication to use the
current_size field. This patch does not change that, even with the
'force_size_calc' option.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Since commit 5ec18f8c, query-blockstats didn't return the statistics of
drives without media any more because such drives have only a BB now,
but not a BDS any more.
This patch fixes the regression so that query-blockstats iterates over
BBs by default and empty drives are displayed again.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The new functions handles the data that is taken from the
BlockDriverState.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
The new functions handles the data that is taken from the BlockBackend.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Not particularly important since qemu-img exits immediately after
calling img_rebase, but easily fixed. Coverity says thanks.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- postcopy is no longer experimental
- fix a use-after-free in postcopy
- fix a compile warning
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Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.6-7' into staging
migration:
- postcopy is no longer experimental
- fix a use-after-free in postcopy
- fix a compile warning
# gpg: Signature made Fri 11 Mar 2016 12:29:33 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg: aka "Amit Shah <amit@kernel.org>"
# gpg: aka "Amit Shah <amitshah@gmx.net>"
* remotes/amit-migration/tags/migration-for-2.6-7:
postcopy: Remove the x-
postcopy: listen thread is never joined
migration: fix use-after-free in loadvm_postcopy_handle_run_bh
migration: fix warning for source_return_path_thread
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/berrange/tags/pull-io-win32-2016-03-11-1' into staging
Merge I/O fixes for win32
# gpg: Signature made Fri 11 Mar 2016 10:03:20 GMT using RSA key ID 15104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>"
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>"
* remotes/berrange/tags/pull-io-win32-2016-03-11-1:
osdep: remove use of socket_error() from all code
osdep: add wrappers for socket functions
char: remove qemu_chr_open_socket_fd method
char: remove socket_try_connect method
char: remove qemu_chr_finish_socket_connection method
io: implement socket watch for win32 using WSAEventSelect+select
io: remove checking of EWOULDBLOCK
io: use qemu_accept to ensure SOCK_CLOEXEC is set
io: introduce qio_channel_create_socket_watch
io: pass HANDLE to g_source_add_poll on Win32
io: fix copy+paste mistake in socket error message
io: assert errors before asserting content in I/O test
io: set correct error object in background reader test thread
io: wait for incoming client in socket test
io: bind to socket before creating QIOChannelSocket
io: initialize sockets in test program
io: use bind() to check for IPv4/6 availability
osdep: fix socket_error() to work with Mingw64
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
compat code and a bugfix in the s390-ccw bios.
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20160311' into staging
CPU hotplug via cpu-add for s390x, cleanup of the s390x machine
compat code and a bugfix in the s390-ccw bios.
# gpg: Signature made Fri 11 Mar 2016 09:48:02 GMT using RSA key ID C6F02FAF
# gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>"
* remotes/cohuck/tags/s390x-20160311:
s390x/cpu: use g_new0
s390x: Introduce S390MachineClass
s390x: Introduce machine definition macros
pc-bios/s390-ccw: fix old bug in ptr increment
s390x/cpu: Allow hotplug of CPUs
s390x/cpu: Add error handling to cpu creation
s390x/cpu: Add CPU property links
s390x/cpu: Tolerate max_cpus
s390x/cpu: Get rid of side effects when creating a vcpu
s390x/cpu: Set initial CPU state in common routine
s390x/cpu: Cleanup init in preparation for hotplug
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Memory accesses to code which has previously been translated into a TB show up
in the MMIO path, so that they may invalidate the TB. It's extremely confusing
to mix those in with device MMIOs, so split them into their own tracepoint.
Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1456949575-1633-2-git-send-email-hollis_blanchard@mentor.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Knowing which CPU performed an action is essential for understanding SMP guest
behavior.
However, cpu_physical_memory_rw() may be executed by a machine init function,
before any VCPUs are running, when there is no CPU running ('current_cpu' is
NULL). In this case, store -1 in the trace record as the CPU index. Trace
analysis tools may need to be aware of this special case.
Signed-off-by: Hollis Blanchard <hollis_blanchard@mentor.com>
Message-id: 1456949575-1633-1-git-send-email-hollis_blanchard@mentor.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This patch adds a couple of variables to manipulate the raw sdr
entries. The const attribute is also removed on init_sdrs. This will
ease the introduction of a sdr loader using a file.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Currently, the code initializing the sdr table relies on an ending
record with a recid of 0xffff. This patch changes the loop to use the
sdr size as a breaking condition.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch moves the code section initializing the sdrs in its own
routine to prepare ground for changes in the subsequent patches.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This will be useful to define and use properties when the object is
instantiated.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The third byte in the response buffer of an IPMI command holds the
error code. In many IPMI command handlers, this byte is updated
directly. This patch adds a helper routine to clarify why this byte is
being used.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Some IPMI command handlers in the BMC simulator use a macro
IPMI_CHECK_RESERVATION() to check a SDR reservation but the macro
implicitly uses local variables. This patch simply removes it.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The IPMI command handlers in the BMC simulator use a macro
IPMI_ADD_RSP_DATA() to push bytes in a response buffer. The macro
hides the fact that it implicitly uses variables local to the handler,
which is misleading.
This patch introduces a simple 'struct RspBuffer' and inlined helper
routines to store byte(s) in a response buffer. rsp_buffer_push()
replaces the macro IPMI_ADD_RSP_DATA() and rsp_buffer_pushmore() is
new helper to push multiple bytes. The latest is used in the command
handlers get_msg() and get_sdr() which are manipulating the buffer
directly.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
