- 05 4月, 2012 32 次提交
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由 Dong Xu Wang 提交于
Discussion can be found at: http://patchwork.ozlabs.org/patch/128730/ This patch add image fragmentation statistics while using qemu-img check. Signed-off-by: NDong Xu Wang <wdongxu@linux.vnet.ibm.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
I am not sure that these are really proper GtkDoc, but they follow the existing documentation in block_int.h. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
There is no need to do this in every implementation of set_speed (even though there is only one right now). Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Streaming can issue I/O while qcow2_close is running. This causes the L2 caches to become very confused or, alternatively, could cause a segfault when the streaming coroutine is reentered after closing its block device. The fix is to cancel streaming jobs when closing their underlying device. The cancellation must be synchronous, on the other hand qemu_aio_wait will not restart a coroutine that is sleeping in co_sleep. So add a flag saying whether streaming has in-flight I/O. If the busy flag is false, the coroutine is quiescent and, when cancelled, will not issue any new I/O. This protects streaming against closing, but not against deleting. We have a reference count protecting us against concurrent deletion, but I still added an assertion to ensure nothing bad happens. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
We do not want jobs to keep a device busy for a possibly very long time, and management could become confused because they thought a device was not even there anymore. So, cancel long-running jobs as soon as their device is going to disappear. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Zhi Yong Wu 提交于
Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NZhi Yong Wu <wuzhy@linux.vnet.ibm.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 David Gibson 提交于
Currently dma_bdrv_io() takes a 'to_dev' boolean parameter to determine the direction of DMA it is emulating. We already have a DMADirection enum designed specifically to encode DMA directions. This patch uses it for dma_bdrv_io() as well. This involves removing the DMADirection definition from the #ifdef it was inside, but since that only existed to protect the definition of dma_addr_t from places where config.h is not included, there wasn't any reason for it to be there in the first place. Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: NAndreas Färber <afaerber@suse.de> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Finally reindent all code and change goto statements to a loop. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Reads and writes to the underlying file can also occur with the simple non-vectored I/O interfaces. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
vdi.c really works as if it implemented bdrv_read and bdrv_write. However, because only vector I/O is supported by the asynchronous callbacks, it went through extra pain to bounce-buffer the I/O. This can be handled by the block layer now that the format is coroutine-based. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Most of the AIOCB really holds local variables that need to persist across callback invocation. It can go away now. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Now inline the former AIO callbacks into vdi_co_readv and vdi_co_writev. While many cleanups are possible, the code now really looks synchronous. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
The next step is to take code that only triggers after the first operation, and move it at the end of vdi_aio_read_cb and vdi_aio_write_cb. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Even a basic conversion changing the bdrv_aio_readv/bdrv_aio_writev calls to bdrv_co_readv/bdrv_co_writev, and callbacks to goto statements can eliminate a lot of code. This is because error handling is simplified and indirections through bottom halves can go away. After this patch, I/O to the underlying file already happens via coroutines, but the code still looks a lot like if asynchronous I/O was being used. Acked-by: NStefan Weil <sw@weilnetz.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
Nicolae Mogoreanu <mogo@google.com> noticed that I/O requests can lead to QEMU crashes when the logical_block_size property is smaller than 512 bytes. Using the new "blocksize" property we can properly enforce constraints on the block size such that QEMU's block layer is able to operate correctly. Reported-by: NNicolae Mogoreanu <mogo@google.com> Reported-by: NMichael Halcrow <mhalcrow@google.com> Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
Storage interfaces like virtio-blk can be configured with block size information so that the guest can take advantage of efficient I/O request sizes. According to the SCSI Block Commands (SBC) standard a device's block size is "almost always greater than one byte and may be a multiple of 512 bytes". QEMU currently has a 512 byte minimum block size because the block layer functions work at that granularity. Furthermore, the block size should be a power of 2 because QEMU calculates bitmasks from the value. Introduce a "blocksize" property type so devices can enforce these constraints on block size values. If the constraints are relaxed in the future then this property can be updated. Introduce the new PropertyValueNotPowerOf2 QError so QMP clients know exactly why a block size value was rejected. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
Fix a typo in the description for QERR_PROPERTY_VALUE_OUT_OF_RANGE where "'" was used instead of ")". Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Zhang Shengju 提交于
After validation check, the 'checksum' is not written back to footer, which leave it with zero. This results in errors while loadding it under Microsoft's Hyper-V environment, and also errors from utilities like Citrix's vhd-util. Signed-off-by: NZhang Shengju <sean_zhang@trendmicro.com.cn> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Floris Bos 提交于
Allow the user to specify a disk's World Wide Name. Linux guests can address disks by their unique World Wide Name number (e.g. /dev/disk/by-id/wwn-0x5001517959123522). This patch adds support for assigning a World Wide Name number to a virtual IDE disk. Cc: kwolf@redhat.com Signed-off-by: NFloris Bos <dev@noc-ps.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Floris Bos 提交于
strncpy may not null-terminate the destination string. Cc: kwolf@redhat.com Signed-off-by: NFloris Bos <dev@noc-ps.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Floris Bos 提交于
Allow the user to override the default disk model name "QEMU HARDDISK". Some Linux distributions use the /dev/disk/by-id/scsi-SATA_name-of-disk- model_serial addressing scheme when refering to partitions in /etc/fstab and elsewhere. This causes problems when starting a disk image taken from an existing physical server under qemu, because when running under qemu name-of-disk-model is always "QEMU HARDDISK". This patch introduces a model=s option which in combination with the existing serial=s option can be used to fake the disk the operating system was previously on, allowing the OS to boot properly. Cc: kwolf@redhat.com Signed-off-by: NFloris Bos <dev@noc-ps.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
Reserved bits should be cleared to zero. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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由 Paolo Bonzini 提交于
And remove several block_int.h inclusions that should not be there. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
It can be useful to enable QEMU tracing when trying out block layer interfaces via qemu-io. Tracing can be enabled using the new -T FILE option where the given file contains a list of trace events to enable (just like the qemu --trace events=FILE option). $ echo qemu_vfree >my-events $ ./qemu-io -T my-events ... Remember to use ./configure --enable-trace-backend=BACKEND when building qemu-io. Signed-off-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
Since everything goes through the cache, callers don't use the L2 table offset any more. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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由 Kevin Wolf 提交于
It has happened more than once that patches that look perfectly sane and work with simpletrace broke systemtap because they use 'next' as an argument name for a tracing function. However, 'next' is a keyword for systemtap, so we shouldn't use it. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
'next' is a systemtap keyword, so it's a bad idea to use it as an argument name. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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git://repo.or.cz/qemu/agraf由 Blue Swirl 提交于
* 's390-for-upstream' of git://repo.or.cz/qemu/agraf: target-s390x: Update s390x_{tod,cpu}_timer() to use S390CPU target-s390x: QOM'ify CPU init target-s390x: QOM'ify CPU reset target-s390x: QOM'ify CPU
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由 Artyom Tarasenko 提交于
The vector interrupt has higher priority than interrupt_level_n. Also check only interrupt_level_n concurency when TL > 0, the traps of other types may be nested. Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Artyom Tarasenko 提交于
Don't produce stray irq 5, don't overwrite ivec_data if still busy with processing of the previous interrupt. Signed-off-by: NArtyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Andreas Färber 提交于
In place of CPUS390XState pass S390CPU as opaque from the new initfn. cpu_interrupt() is anticipated to take a CPUState in the future. Signed-off-by: NAndreas Färber <afaerber@suse.de> Tested-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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- 04 4月, 2012 3 次提交
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由 Andreas Färber 提交于
Move code from cpu_s390x_init() into an initfn. Signed-off-by: NAndreas Färber <afaerber@suse.de> Tested-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Andreas Färber 提交于
Move code from cpu_state_reset() to s390_cpu_reset(). Signed-off-by: NAndreas Färber <afaerber@suse.de> Tested-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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由 Andreas Färber 提交于
Embed CPUS390XState as first member of S390CPU. Since -cpu is being ignored, make TYPE_S390_CPU non-abstract. Signed-off-by: NAndreas Färber <afaerber@suse.de> Tested-by: NChristian Borntraeger <borntraeger@de.ibm.com>
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- 03 4月, 2012 4 次提交
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由 Paolo Bonzini 提交于
Avoid cluttering too much the QOM root. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Paolo Bonzini 提交于
A strong limitation of QOM right now is that unconverted ports (e.g. all...) do not give a canonical path to devices that are part of the board. This in turn makes it impossible to replace PROP_PTR with a QOM link for example. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Paolo Bonzini 提交于
We want the composition tree to to be in order by the time we call qdev_init, so that a single set of the toplevel realize property can propagate all the way down the composition tree. This is not the case so far. Unfortunately, this is incompatible with calling qdev_init in the constructor wrappers for devices, so for now we need to unattach some devices that are created through those wrappers. This will be fixed by removing qdev_init and instead setting the toplevel realize property after machine init. Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Paolo Bonzini 提交于
This is QOM "mkdir -p". It is useful when referring to container objects such as "/machine". Reviewed-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 02 4月, 2012 1 次提交
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由 Anthony Liguori 提交于
* kiszka/queues/slirp: slirp: Signal free input buffer space to io-thread w32/slirp: Undefine error constants before their redefinition slirp: use socket_set_nonblock slirp: clean up conflicts with system headers
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