- 28 7月, 2009 1 次提交
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 16 7月, 2009 1 次提交
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由 Christoph Hellwig 提交于
The VM state offset is a concept internal to the image format. Replace the old bdrv_{get,put}_buffer method that require an index into the image file that is constructed from the VM state offset and an offset into the vmstate with the bdrv_{load,save}_vmstate that just take an offset into the VM state. Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 11 7月, 2009 1 次提交
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由 Avi Kivity 提交于
Commit 6a7ad299 ("Call qemu_bh_delete at bdrv_aio_bh_cb") deletes emulated aio bottom halves to prevent endless accumulation. However, it leaves a stale ->bh pointer, which is then waited on when the aio is reused. Zeroing the pointer fixes the issue, allowing vmdk format images to be used. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 10 7月, 2009 1 次提交
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由 Anthony Liguori 提交于
This reverts commit 707c0dbc. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 02 7月, 2009 1 次提交
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由 Blue Swirl 提交于
Fix missing strnlen (a GNU extension) problems by using qemu_strnlen used for user emulators also for system emulators. Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 30 6月, 2009 1 次提交
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由 Ram Pai 提交于
Problem: It is impossible to feed filenames with the character colon because qemu interprets such names as a protocol. For example filename scsi:0, is interpreted as a protocol by name "scsi". This patch allows user to espace colon characters. For example the above filename can now be expressed either as 'scsi\:0' or as file:scsi:0 anything following the "file:" tag is interpreted verbatin. However if "file:" tag is omitted then any colon characters in the string must be escaped using backslash. Here are couple of examples: scsi\:0\:abc is a local file scsi:0:abc http\://myweb is a local file by name http://myweb file:scsi:0:abc is a local file scsi:0:abc file:http://myweb is a local file by name http://mywebSigned-off-by: NRam Pai <linuxram@us.ibm.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 17 6月, 2009 2 次提交
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由 Mark McLoughlin 提交于
Section 10.8.25 ("START/STOP UNIT Command") of SFF-8020i states that if the device is locked we should refuse to eject if the device is locked. ASC_MEDIA_REMOVAL_PREVENTED is the appropriate return in this case. In order to stop itself from ejecting the media it is running from, Fedora's installer (anaconda) requires the CDROMEJECT ioctl() to fail if the drive has been previously locked. See also https://bugzilla.redhat.com/501412Signed-off-by: NMark McLoughlin <markmc@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Dor Laor 提交于
Also replave qemu_bh_cancel with qemu_bh_delete in bdrv_aio_cancel_em. Otherwise the bh will live forever in the bh list. Signed-off-by: NDor Laor <dor@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 15 6月, 2009 2 次提交
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由 Christoph Hellwig 提交于
Add a bdrv_probe_device method to all BlockDriver instances implementing host devices to move matching of host device types into the actual drivers. For now we keep exacly the old matching behaviour based on the devices names, although we really should have better detetion methods based on device information in the future. Signed-off-by: NChristoph Hellwig <hch@lst.de>
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由 Christoph Hellwig 提交于
Instead of declaring one BlockDriver for all host devices declared one for each type: a generic one for normal disk devices, a Linux floppy driver and a CDROM driver for Linux and FreeBSD. This gets rid of a lot of messy ifdefs and switching based on the type in the various removal device methods. block.c grows a new method to find the correct host device driver based on OS-sepcific criteria, which will later into the actual drivers in a later patch in this series. Signed-off-by: NChristoph Hellwig <hch@lst.de>
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- 27 5月, 2009 2 次提交
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由 Christoph Hellwig 提交于
Now that we have a separate aio pool structure we can remove those aio pool details from BlockDriver. Every driver supporting AIO now needs to declare a static AIOPool with the aiocb size and the cancellation method. This cleans up the current code considerably and will make it cleaner and more obvious to support two different aio implementations behind a single BlockDriver. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Kevin Wolf 提交于
This patch converts the remaining users of bdrv_create2 to bdrv_create and removes the now unused function. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 22 5月, 2009 2 次提交
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由 Kevin Wolf 提交于
Now we can make use of the newly introduced option structures. Instead of having bdrv_create carry more and more parameters (which are format specific in most cases), just pass a option structure as defined by the driver itself. bdrv_create2() contains an emulation of the old interface to simplify the transition. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 15 5月, 2009 1 次提交
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由 Anthony Liguori 提交于
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 09 5月, 2009 1 次提交
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由 Kevin Wolf 提交于
This patch makes the range checks for block requests more strict: It fixes a potential integer overflow and checks for negative offsets. Also, it adds the check for compressed writes. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 23 4月, 2009 1 次提交
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由 aliguori 提交于
this patch adds a buffer_alignment field to BlockDriverState and implements a qemu_blockalign function that uses that field to allocate a memory aligned buffer to be used by the block driver. buffer_alignment is initialized to 512 but each block driver can set a different value (at the moment none of them do). This patch modifies ide.c, block-qcow.c, block-qcow2.c and block.c to use qemu_blockalign instead of qemu_memalign. There is only one place left that still uses qemu_memalign to allocate buffers used by block drivers that is posix-aio-compat:handle_aiocb_rw because it is not possible to get the BlockDriverState from that function. However I think it is not important because posix-aio-compat already deals with driver specific code so it is supposed to know its own needs. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7229 c046a42c-6fe2-441c-8c8c-71466251a162
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- 22 4月, 2009 1 次提交
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由 aliguori 提交于
From: Kevin Wolf <kwolf@redhat.com> Introduce a new bdrv_check function pointer for block drivers. Modify qcow2 to return an error status in check_refcounts(), so it can implement bdrv_check. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7214 c046a42c-6fe2-441c-8c8c-71466251a162
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- 14 4月, 2009 1 次提交
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7103 c046a42c-6fe2-441c-8c8c-71466251a162
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- 08 4月, 2009 3 次提交
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由 aliguori 提交于
This ties up the preadv/pwritev syscalls to qemu if they are declared in unistd.h. This is the case currently on at least NetBSD and OpenBSD and will hopefully soon be the case on Linux. Thanks to Blue Swirl and Gerd Hoffmann for the configure autodetection of preadv/pwritev. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7021 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Make all AIO requests vectored and defer linearization until the actual I/O thread. This prepares for using native preadv/pwritev. Also enables asynchronous direct I/O by handling that case in the I/O thread. Qcow and qcow2 propably want to be adopted to directly deal with multi-segment requests, but that can be implemented later. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7020 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Always use the vectored APIs to reduce code churn once we switch the BlockDriver API to be vectored. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7019 c046a42c-6fe2-441c-8c8c-71466251a162
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- 06 4月, 2009 1 次提交
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由 aliguori 提交于
We now enforce that you cannot write beyond the end of a non-growable file. qcow2 files are not growable but we rely on them being growable to do savevm/loadvm. Temporarily allow them to be growable by introducing a new API specifically for savevm read/write operations. Reported-by: malc Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6994 c046a42c-6fe2-441c-8c8c-71466251a162
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- 29 3月, 2009 5 次提交
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由 aliguori 提交于
All the bdrv_ helpers should check for bs->drv being zero as that means there is no backend image open. bdrv_flush fails to perform that check and can thus cause NULL pointer dereferences. Found using qemu-io. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6943 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Remove code dealing with negative sector numbers for byte access in bdrv_check_request as sector numbers can't ever be negative. Previously we supported negative sector counts for byte access, but never sector numbers. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6942 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Added a backing_format field to BlockDriverState. Added bdrv_create2 and drv->bdrv_create2 to create an image with a known backing file format. Upon bdrv_open2 if backing format is known use it, instead of probing the (backing) image. Signed-off-by: NUri Lublin <uril@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6908 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Okay, I started looking into how to handle scsi-generic I/O in the new world order. I think the best is to use the SG_IO ioctl instead of the read/write interface as that allows us to support scsi passthrough on disk/cdrom devices, too. See Hannes patch on the kvm list from August for an example. Now that we always do ioctls we don't need another abstraction than bdrv_ioctl for the synchronous requests for now, and for asynchronous requests I've added a aio_ioctl abstraction keeping it simple. Long-term we might want to move the ops to a higher-level abstraction and let the low-level code fill out the request header, but I'm lazy enough to leave that to the people trying to support scsi-passthrough on a non-Linux OS. Tested lightly by issuing various sg_ commands from sg3-utils in a guest to a host CDROM device. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6895 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
If a bounced vectored aio fails immediately (the inner aio submission returning NULL) then the bounce handler erronously returns an aio request which will never be completed (and which crashes when cancelled). Fix by detecting that the inner request has failed and propagating the error. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6892 c046a42c-6fe2-441c-8c8c-71466251a162
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- 21 3月, 2009 3 次提交
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由 aliguori 提交于
Now that we have a dedicated acb pool for vector translation acbs, we can store the vector translation state in the acbs instead of in an external structure. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6873 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
This allows us to remove a hack in the vectored aio cancellation code. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6871 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Move the AIOCB allocation code to use a dedicate structure, AIOPool. AIOCB specific information, such as the AIOCB size and cancellation routine, is moved into the pool. At present, there is exactly one pool per block format driver, maintaining the status quo. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6870 c046a42c-6fe2-441c-8c8c-71466251a162
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- 13 3月, 2009 3 次提交
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由 aliguori 提交于
Now that scsi generic no longer uses bdrv_pread() and bdrv_pwrite(), we can drop the corresponding internal APIs, which overlap bdrv_read()/bdrv_write() and, being byte oriented, are unnatural for a block device. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6824 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
Add an internal API for the generic block layer to send scsi generic commands to block format driver. This means block format drivers no longer need to consider overloaded nb_sectors parameters. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6823 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
When a scsi device is backed by a scsi generic device instead of an ordinary host block device, the block API is abused in a couple of annoying ways: - nb_sectors is negative, and specifies a byte count instead of a sector count - offset is ignored, since scsi-generic is essentially a packet protocol This overloading makes hacking the block layer difficult. Remove it by introducing a new explicit API for scsi-generic devices. The new API is still backed by the old implementation, but at least the users are insulated. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6822 c046a42c-6fe2-441c-8c8c-71466251a162
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- 12 3月, 2009 2 次提交
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由 aliguori 提交于
This series is broken by design as it requires expensive IO operations at open time causing very long delays when starting a virtual machine for the first time. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6814 c046a42c-6fe2-441c-8c8c-71466251a162
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由 aliguori 提交于
This series is broken by design as it requires expensive IO operations at open time causing very long delays when starting a virtual machine for the first time. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6813 c046a42c-6fe2-441c-8c8c-71466251a162
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- 09 3月, 2009 1 次提交
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由 aliguori 提交于
We want to globally define WIN_LEAN_AND_MEAN and WINVER to particular values so let's do it in OS_CFLAGS. Then, we can pepper in windows.h includes where using #includes that require it. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6783 c046a42c-6fe2-441c-8c8c-71466251a162
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- 08 3月, 2009 2 次提交
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6775 c046a42c-6fe2-441c-8c8c-71466251a162
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由 blueswir1 提交于
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6746 c046a42c-6fe2-441c-8c8c-71466251a162
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- 06 3月, 2009 1 次提交
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由 aliguori 提交于
Refactor the monitor API and prepare it for decoupled terminals: term_print functions are renamed to monitor_* and all monitor services gain a new parameter (mon) that will once refer to the monitor instance the output is supposed to appear on. However, the argument remains unused for now. All monitor command callbacks are also extended by a mon parameter so that command handlers are able to pass an appropriate reference to monitor output services. For the case that monitor outputs so far happen without clearly identifiable context, the global variable cur_mon is introduced that shall once provide a pointer either to the current active monitor (while processing commands) or to the default one. On the mid or long term, those use case will be obsoleted so that this variable can be removed again. Due to the broad usage of the monitor interface, this patch mostly deals with converting users of the monitor API. A few of them are already extended to pass 'mon' from the command handler further down to internal functions that invoke monitor_printf. At this chance, monitor-related prototypes are moved from console.h to a new monitor.h. The same is done for the readline API. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6711 c046a42c-6fe2-441c-8c8c-71466251a162
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