- 15 11月, 2012 8 次提交
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由 Stefan Hajnoczi 提交于
AIO control blocks are frequently acquired and released because each aio request involves at least one AIOCB. Therefore, we pool them to avoid heap allocation overhead. The problem with the freelist approach in AIOPool is thread-safety. If we want BlockDriverStates to associate with AioContexts that execute in multiple threads, then a global freelist becomes a problem. This patch drops the freelist and instead uses g_slice_alloc() which is tuned for per-thread fixed-size object pools. qemu_aio_get() and qemu_aio_release() are now thread-safe. Note that the change from g_malloc0() to g_slice_alloc() should be safe since the freelist reuse case doesn't zero the AIOCB either. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.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
Using appropriate types for variables is a good thing :). All users simply do sizeof(MyType) and the value is passed to a memory allocator, it should be size_t. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Nick Thomas 提交于
To do this, we start a qemu-nbd process at _make_test_img and kill it in _cleanup_test_img. $TEST_IMG is changed to point at the TCP server. We also remove the checks for existence of binaries from common.config - they're duplicated in common, and we can make the qemu-nbd check conditional on $IMGPROTO being "nbd" if we do it there. Signed-off-by: NNick Thomas <nick@bytemark.co.uk> Acked-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Weil 提交于
Versions before gcc-4.6 don't support unnamed fields in initializers (see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676). Offset and OffsetHigh belong to an unnamed struct which is part of an unnamed union. Therefore the original code does not work with older versions of gcc. Signed-off-by: NStefan Weil <sw@weilnetz.de> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Stefan Hajnoczi 提交于
Kevin has requested co-maintainership to give him more time to write code. We will alternate patch review duties on a weekly basis. Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
Actually writing all the content with 512 byte sector size would take forever, therefore build the image file with a Python script and use qemu-io for the last write that actually triggers the refcount table growth. Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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由 Kevin Wolf 提交于
A missing factor for the refcount table entry size in the calculation could mean that too little memory was allocated for the in-memory representation of the table, resulting in a buffer overflow. Signed-off-by: NKevin Wolf <kwolf@redhat.com> Reviewed-by: NMichael Tokarev <mjt@tls.msk.ru> Tested-by: NMichael Tokarev <mjt@tls.msk.ru>
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由 Bharata B Rao 提交于
Signed-off-by: NBharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: NKevin Wolf <kwolf@redhat.com>
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- 14 11月, 2012 16 次提交
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由 Anthony Liguori 提交于
vfio-pci: KVM INTx accel & common msi_get_message * awilliam/tags/vfio-pci-for-qemu-1.3.0-rc0: vfio-pci: Use common msi_get_message vfio-pci: Add KVM INTx acceleration linux-headers: Update to 3.7-rc5 Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* kraxel/pixman.v5: pixman: cleanup properly on make distclean pixman: add licensing info pixman: build internal version early pixman: pass cflags, add -fPIC pixman: disable gtk pixman: set --host for cross builds pixman: add output dir to include path Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* bonzini/nbd-next: nbd: fixes to read-only handling hmp: add NBD server commands nbd: disallow nbd-server-add before nbd-server-start nbd: force read-only export for read-only devices nbd: fix nbd_server_stop crash when no server was running nbd: accept URIs nbd: accept relative path to Unix socket qemu-nbd: initialize main loop before block layer Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* bonzini/scsi-next: virtio-scsi: use dma_context_memory dma: Define dma_context_memory and use in sysbus-ohci megasas: Correct target/lun mapping scsi-disk: flush cache after disabling it megasas: do not include block_int.h scsi: remove superfluous call to scsi_device_set_ua virtio-scsi: factor checks for VIRTIO_SCSI_S_DRIVER_OK when reporting events scsi: do not return short responses for emulated commands Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* kraxel/usb.70: ehci: fix migration xhci: Fix some DMA host endian bugs usb/combined-packet: Move freeing of combined to usb_combined_packet_remove() xhci: Add support for packets with both data and an error status ehci: Add support for packets with both data and an error status ehci: Get rid of the magical PROC_ERR status usb-redir: Allow packets to have both data and an error-status usb: split packet result into actual_length + status Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Anthony Liguori 提交于
* spice/spice.v63: spice: fix initialization order pflib: unused, remove it. spice: switch to pixman qxl: call dpy_gfx_resize when entering vga mode qxl: fix cursor reset hw/qxl: qxl_send_events: nop if stopped hw/qxl: guest bug on primary create with stride %4 != 0 Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>
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由 Gerd Hoffmann 提交于
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Signed-off-by: NEric Johnson <ericj@mips.com> Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Pass on CFLAGS to the pixman configure script. Add -fPIC to the cflags, needed to make the final link succeed. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
gtk is only needed to build test cases. Disable it to simplify the build. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Set --host when calling pixman configure while doing cross builds so pixman's autoconf picks up the cross build tools correctly. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Gerd Hoffmann 提交于
Needed to make sure the (generated) pixman-version.h file is found. Based on a patch from Blue Swirl. Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
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由 Alex Williamson 提交于
We can get rid of our local version now that a helper exists. Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
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由 Alex Williamson 提交于
This makes use of the new level irqfd support enabling bypass of qemu userspace both on INTx injection and unmask. This significantly boosts the performance of devices making use of legacy interrupts (ex. ~60% better netperf TCP_RR scores for an e1000e assigned to a Linux guest and booted with pci=nomsi). This also avoids flipping mmaps on and off to simulate EOIs, so greatly improves performance of device access in addition to interrupt latency. Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
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由 Alex Williamson 提交于
update-linux-headers.sh script run against Linux tag v3.7-rc5 Signed-off-by: NAlex Williamson <alex.williamson@redhat.com>
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- 13 11月, 2012 2 次提交
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由 Paolo Bonzini 提交于
We do not need BLKROSET if the kernel supports setting flags. Also, always do BLKROSET even for a read-write export, otherwise the read-only state remains "sticky" after the invocation of "qemu-nbd -r". Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Commit ed2aec4867f0d5f5de496bb765347b5d0cfe113d changed the return value of aio_ctx_prepare from false to true when only idle bottom halves are available. This broke PC old-style DMA, which uses them. Fix this by making aio_ctx_prepare return true only when non-idle bottom halves are scheduled to run. Reported-by: Nmalc <av1474@comtv.ru> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com> Signed-off-by: Nmalc <av1474@comtv.ru>
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- 12 11月, 2012 14 次提交
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由 Paolo Bonzini 提交于
Until address_space_rw was introduced, NULL was accepted as a placeholder for DMA with no IOMMU (to address_space_memory). This does not work anymore, and dma_context_memory needs to be specified explicitly. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Peter Maydell 提交于
Define a new global dma_context_memory which is a DMAContext corresponding to the global address_space_memory AddressSpace. This can be used by sysbus peripherals like sysbus-ohci which need to do DMA. In particular, use it in the sysbus-ohci device, which fixes a segfault when attempting to use that device. Signed-off-by: NPeter Maydell <peter.maydell@linaro.org> Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
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由 Hannes Reinecke 提交于
The structure to reference a logical drive has an unused field, which can be used to carry the lun ID. This enabled seabios to establish the proper target/LUN mapping. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: NHannes Reinecke <hare@suse.de> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
SBC says that "if an application client changes the WCE bit from one to zero via a MODE SELECT command, then the device server shall write any data in volatile cache to non-volatile medium before completing the command". Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Suggested by Laszlo Ersek. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Suggested by Laszlo Ersek. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
The inquiry command, for the case of VPD=1, was returning short responses; the number of returned bytes was just the number of bytes in the request, without padding to the specified allocation length with zero bytes. This is usually harmless, but it is a violation of the SCSI specification. To fix this, always pad with zero bytes to r->cmd.xfer in scsi_disk_emulate_command, and return at most r->buflen bytes (the size of the buffer for command data) rather than at most buflen bytes (the number of bytes that was filled in). Before this patch, "strace sg_inq -p0x83 /dev/sda" would report a non-zero resid value. After this patch, it reports resid=0. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
It works nicely with the QMP commands, but it adds useless complication with HMP. In particular, see the following: (qemu) nbd_server_add -w scsi0-hd0 (qemu) nbd_server_start -a localhost:10809 NBD server already exporting device scsi0-hd0 Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
This is the desired behavior for HMP, but it is a better choice for QMP as well. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
This failed on the new assertion of qemu_set_fd_handler2: qemu-system-x86_64: /home/pbonzini/work/upstream/qemu/iohandler.c:60: qemu_set_fd_handler2: Assertion `fd >= 0' failed. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
The URI syntax is consistent with the Gluster syntax. Export names are specified in the path, preceded by one or more (otherwise unused) slashes. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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由 Paolo Bonzini 提交于
Adding the "is_unix" member now will simplify the parsing of NBD URIs. Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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