- 16 4月, 2013 1 次提交
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由 Gerd Hoffmann 提交于
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 03 4月, 2013 1 次提交
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由 Gerd Hoffmann 提交于
Replace them with a tracepoint, so they don't spam stderr by default. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 28 3月, 2013 3 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 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
Signed-off-by: NKevin Wolf <kwolf@redhat.com> Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 18 3月, 2013 2 次提交
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由 Gerd Hoffmann 提交于
Decouple DisplaySurface allocation & deallocation from DisplayState. Replace dpy_gfx_resize + dpy_gfx_setdata with a dpy_gfx_replace_surface function. This handles the graphic hardware emulation. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Split callbacks into separate Ops struct. Pass DisplayChangeListener pointer as first argument to all callbacks. Uninline a bunch of display functions and move them from console.h to console.c Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 15 3月, 2013 1 次提交
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由 Stefan Hajnoczi 提交于
Move global variables into a struct so multiple thread pools can be supported in the future. This patch does not change thread-pool.h interfaces. There is still a global thread pool and it is not yet possible to create/destroy individual thread pools. Moving the variables into a struct first makes later patches easier to review. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 13 3月, 2013 1 次提交
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由 Gerd Hoffmann 提交于
This patch allows to specify multiple directories where qemu should look for data files. To implement that the behavior of the -L switch is slightly different now: Instead of replacing the data directory the path specified will be appended to the data directory list. So when specifiying -L multiple times all directories specified will be checked, in the order they are specified on the command line, instead of just the last one. Additionally the default paths are always appended to the directory data list. This allows to specify a incomplete directory (such as the seabios out/ directory) via -L. Anything not found there will be loaded from the default paths, so you don't have to create a symlink farm for all the rom blobs. For trouble-shooting a tracepoint has been added, logging which blob has been loaded from which location. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com> Message-id: 1362739344-8068-1-git-send-email-kraxel@redhat.com Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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- 11 3月, 2013 1 次提交
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由 Kazuya Saito 提交于
Signed-off-by: NKazuya Saito <saito.kazuya@jp.fujitsu.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NJuan Quintela <quintela@redhat.com>
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- 06 3月, 2013 1 次提交
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由 Paolo Bonzini 提交于
Cc: qemu-stable@nongnu.org Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 19 2月, 2013 1 次提交
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由 Gerd Hoffmann 提交于
Add streams support to the xhci emulation. No secondary streams yet, only linear stream arays are supported for now. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 30 1月, 2013 3 次提交
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由 Cornelia Huck 提交于
Add a new virtio transport that uses channel commands to perform virtio operations. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Cornelia Huck 提交于
Provide a mechanism for qemu to provide fully virtual subchannels to the guest. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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由 Cornelia Huck 提交于
Provide handlers for (most) channel I/O instructions. Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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- 26 1月, 2013 6 次提交
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由 Paolo Bonzini 提交于
Yet another optimization is to extend the mirroring iteration to include more adjacent dirty blocks. This limits the number of I/O operations and makes mirroring efficient even with a small granularity. Most of the infrastructure is already in place; we only need to put a loop around the computation of the origin and sector count of the iteration. 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
With AIO support in place, we can start copying more than one chunk in parallel. This patch introduces the required infrastructure for this: the buffer is split into multiple granularity-sized chunks, and there is a free list to access them. Because of copy-on-write, a single operation may already require multiple chunks to be available on the free list. In addition, two different iterations on the HBitmap may want to copy the same cluster. We avoid this by keeping a bitmap of in-flight I/O operations, and blocking until the previous iteration completes. This should be a pretty rare occurrence, though; as long as there is no overlap the next iteration can start before the previous one finishes. 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
There is really no change in the behavior of the job here, since there is still a maximum of one in-flight I/O operation between the source and the target. However, this patch already introduces the AIO callbacks (which are unmodified in the next patch) and some of the logic to count in-flight operations and only complete the job when there is none. 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
When mirroring runs, the backing files for the target may not yet be ready. However, this means that a copy-on-write operation on the target would fill the missing sectors with zeros. Copy-on-write only happens if the granularity of the dirty bitmap is smaller than the cluster size (and only for clusters that are allocated in the source after the job has started copying). So far, the granularity was fixed to 1MB; to avoid the problem we detected the situation and required the backing files to be available in that case only. However, we want to lower the granularity for efficiency, so we need a better solution. The solution is to always copy a whole cluster the first time it is touched. The code keeps a bitmap of clusters that have already been allocated by the mirroring job, and only does "manual" copy-on-write if the chunk being copied is zero in the bitmap. 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
This actually uses the dirty bitmap in the block layer, and converts mirroring to use an HBitmapIter. Reviewed-by: Laszlo Ersek <lersek@redhat.com> (except block/mirror.c parts) Reviewed-by: NEric Blake <eblake@redhat.com> 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
HBitmaps provides an array of bits. The bits are stored as usual in an array of unsigned longs, but HBitmap is also optimized to provide fast iteration over set bits; going from one bit to the next is O(logB n) worst case, with B = sizeof(long) * CHAR_BIT: the result is low enough that the number of levels is in fact fixed. In order to do this, it stacks multiple bitmaps with progressively coarser granularity; in all levels except the last, bit N is set iff the N-th unsigned long is nonzero in the immediately next level. When iteration completes on the last level it can examine the 2nd-last level to quickly skip entire words, and even do so recursively to skip blocks of 64 words or powers thereof (32 on 32-bit machines). Given an index in the bitmap, it can be split in group of bits like this (for the 64-bit case): bits 0-57 => word in the last bitmap | bits 58-63 => bit in the word bits 0-51 => word in the 2nd-last bitmap | bits 52-57 => bit in the word bits 0-45 => word in the 3rd-last bitmap | bits 46-51 => bit in the word So it is easy to move up simply by shifting the index right by log2(BITS_PER_LONG) bits. To move down, you shift the index left similarly, and add the word index within the group. Iteration uses ffs (find first set bit) to find the next word to examine; this operation can be done in constant time in most current architectures. Setting or clearing a range of m bits on all levels, the work to perform is O(m + m/W + m/W^2 + ...), which is O(m) like on a regular bitmap. When iterating on a bitmap, each bit (on any level) is only visited once. Hence, The total cost of visiting a bitmap with m bits in it is the number of bits that are set in all bitmaps. Unless the bitmap is extremely sparse, this is also O(m + m/W + m/W^2 + ...), so the amortized cost of advancing from one bit to the next is usually constant. Reviewed-by: NLaszlo Ersek <lersek@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 22 1月, 2013 1 次提交
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由 Alon Levy 提交于
Signed-off-by: NAlon Levy <alevy@redhat.com> Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 19 1月, 2013 2 次提交
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由 Markus Armbruster 提交于
Many callers pass size_t, which gets silently truncated to uint32_t. Harmless, because all practical sizes are well below 4GiB. Clean it up anyway. Size overflow now fails assertions. Bonus: saves a whole bunch of silly casts. Signed-off-by: NMarkus Armbruster <armbru@redhat.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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由 Markus Armbruster 提交于
Signed-off-by: NMarkus Armbruster <armbru@redhat.com> Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
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- 08 1月, 2013 1 次提交
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由 Gerd Hoffmann 提交于
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 02 1月, 2013 2 次提交
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由 Stefan Hajnoczi 提交于
virtio-blk-data-plane is a subset implementation of virtio-blk. It only handles read, write, and flush requests. It does this using a dedicated thread that executes an epoll(2)-based event loop and processes I/O using Linux AIO. This approach performs very well but can be used for raw image files only. The number of IOPS achieved has been reported to be several times higher than the existing virtio-blk implementation. Eventually it should be possible to unify virtio-blk-data-plane with the main body of QEMU code once the block layer and hardware emulation is able to run outside the global mutex. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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由 Stefan Hajnoczi 提交于
The virtio-blk-data-plane cannot access memory using the usual QEMU functions since it executes outside the global mutex and the memory APIs are this time are not thread-safe. This patch introduces a virtqueue module based on the kernel's vhost vring code. The trick is that we map guest memory ahead of time and access it cheaply outside the global mutex. Once the hardware emulation code can execute outside the global mutex it will be possible to drop this code. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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- 17 12月, 2012 1 次提交
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由 Marc-André Lureau 提交于
Add a new spice chardev to allow arbitrary communication between the host and the Spice client via the spice server. Examples: This allows the Spice client to have a special port for the qemu monitor: ... -chardev spiceport,name=org.qemu.monitor,id=monitorport -mon chardev=monitorport v2: - remove support for chardev to chardev linking - conditionnaly compile with SPICE_SERVER_VERSION Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 14 12月, 2012 1 次提交
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由 David Gibson 提交于
This patch adds tracing / debugging calls to the XICS interrupt controller implementation used on the pseries machine. Signed-off-by: NBen Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au> Signed-off-by: NAlexander Graf <agraf@suse.de>
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- 16 11月, 2012 2 次提交
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由 Gerd Hoffmann 提交于
Now that we have separate status and length fields in USBPacket update the completion tracepoint to log both. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Starting with commit 1c380f94 dma transfers can actually fail. This patch makes ehci keep track of the busmaster bit in pci config space, by setting/clearing the dma_context pointer. Attempts to dma without context will result in raising HSE (Host System Error) interrupt and stopping the host controller. This patch fixes WinXP not booting with a usb stick attached to ehci. Root cause is seabios activating ehci so you can boot from the stick, and WinXP clearing the busmaster bit before resetting the host controller, leading to ehci actually trying dma while it is disabled. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 05 11月, 2012 1 次提交
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由 Alon Levy 提交于
Added a trace point for easy logging. RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=870972Signed-off-by: NAlon Levy <alevy@redhat.com> Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 01 11月, 2012 1 次提交
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由 Gerd Hoffmann 提交于
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 31 10月, 2012 1 次提交
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由 Paolo Bonzini 提交于
Add a generic thread-pool. The code is roughly based on posix-aio-compat.c, with some changes, especially the following: - use QemuSemaphore instead of QemuCond; - separate the state of the thread from the return code of the worker function. The return code is totally opaque for the thread pool; - do not busy wait when doing cancellation. A more generic threadpool (but still specific to I/O so that in the future it can use special scheduling classes or PI mutexes) can have many uses: it allows more flexibility in raw-posix.c and can more easily be extended to Win32, and it will also be used to do an msync of the persistent bitmap. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 25 10月, 2012 1 次提交
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由 Hans de Goede 提交于
According to the spec a guest can unlink a qh, and then as soon as frindex has changed by 1 since the unlink, assume it is idle and re-use it. However for various reasons, we cannot simply consider a qh as unlinked if we've not seen it for 1 frame. This means that it is possible for a guest to re-use / restart the queue while we still see its old state. This patch adds a safety check for this, and "early" retires queues when they were changed by the guest. Signed-off-by: NHans de Goede <hdegoede@redhat.com> Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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- 24 10月, 2012 2 次提交
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由 Paolo Bonzini 提交于
This patch adds the implementation of a new job that mirrors a disk to a new image while letting the guest continue using the old image. The target is treated as a "black box" and data is copied from the source to the target in the background. This can be used for several purposes, including storage migration, continuous replication, and observation of the guest I/O in an external program. It is also a first step in replacing the inefficient block migration code that is part of QEMU. The job is possibly never-ending, but it is logically structured into two phases: 1) copy all data as fast as possible until the target first gets in sync with the source; 2) keep target in sync and ensure that reopening to the target gets a correct (full) copy of the source data. The second phase is indicated by the progress in "info block-jobs" reporting the current offset to be equal to the length of the file. When the job is cancelled in the second phase, QEMU will run the job until the source is clean and quiescent, then it will report successful completion of the job. In other words, the BLOCK_JOB_CANCELLED event means that the target may _not_ be consistent with a past state of the source; the BLOCK_JOB_COMPLETED event means that the target is consistent with a past state of the source. (Note that it could already happen that management lost the race against QEMU and got a completion event instead of cancellation). It is not yet possible to complete the job and switch over to the target disk. The next patches will fix this and add many refinements to the basic idea introduced here. These include improved error management, some tunable knobs and performance optimizations. 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
While streaming can be dropped as soon as it progressed through the whole image, mirroring needs to be completed manually for two reasons: 1) so that management knows exactly when the VM switches to the target; 2) because for other use cases such as replication, we may leave the operation running for the whole life of the virtual machine. Add a new block job command that manually completes background operations. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 18 10月, 2012 1 次提交
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由 Juan Quintela 提交于
Signed-off-by: NJuan Quintela <quintela@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 29 9月, 2012 2 次提交
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由 Paolo Bonzini 提交于
Add QMP commands matching the functionality. Paused jobs cannot be canceled without first resuming them. This ensures that I/O errors are never missed by management. However, an optional force argument can be specified to allow that. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Jeff Cody 提交于
Signed-off-by: NJeff Cody <jcody@redhat.com> Reviewed-by: NEric Blake <eblake@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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