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2014-08-18monitor: fix use after freeMichael S. Tsirkin
The function monitor_fdset_dup_fd_find_remove() references member of 'mon_fdset' which - when remove flag is set - may be freed in function monitor_fdset_cleanup(). remove is set by monitor_fdset_dup_fd_remove which in practice does not need the returned value, so make it void, and return -1 from monitor_fdset_dup_fd_find_remove. Reported-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-08-18dump.c: Fix memory leak issue in cleanup processing for dump_init()Chen Gang
In dump_init(), when failure occurs, need notice about 'fd' and memory mapping. So call dump_cleanup() for it (need let all initializations at front). Also simplify dump_cleanup(): remove redundant 'ret' and redundant 'fd' checking. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-08-18monitor: Remove hardcoded watchdog event namesHani Benhabiles
Signed-off-by: Hani Benhabiles <hani@linux.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-08-18Merge remote-tracking branch 'remotes/mcayland/qemu-sparc' into stagingPeter Maydell
* remotes/mcayland/qemu-sparc: target-sparc64: implement Short Floating-Point Store Instructions apb: add IOMMU flush register implementation sun4u: switch second PCI-ebus bridge BAR over to PCI IO space Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-18Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging Block pull request # gpg: Signature made Fri 15 Aug 2014 18:04:23 BST using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: (55 commits) qcow2: fix new_blocks double-free in alloc_refcount_block() image-fuzzer: Reduce number of generator functions in __init__ image-fuzzer: Add generators of L1/L2 tables image-fuzzer: Add fuzzing functions for L1/L2 table entries docs: Expand the list of supported image elements with L1/L2 tables image-fuzzer: Public API for image-fuzzer/runner/runner.py image-fuzzer: Generator of fuzzed qcow2 images image-fuzzer: Fuzzing functions for qcow2 images image-fuzzer: Tool for fuzz tests execution docs: Specification for the image fuzzer ide: only constrain read/write requests to drive size, not other types virtio-blk: Correct bug in support for flexible descriptor layout libqos: Change free function called in malloc libqos: Correct mask to align size to PAGE_SIZE in malloc-pc libqtest: add QTEST_LOG for debugging qtest testcases ide: Fix segfault when flushing a device that doesn't exist qemu-options: add missing -drive discard option to cmdline help parallels: 2TB+ parallels images support parallels: split check for parallels format in parallels_open parallels: replace tabs with spaces in block/parallels.c ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-17target-sparc64: implement Short Floating-Point Store InstructionsArtyom Tarasenko
Implement Short Floating-Point Store Instructions as described in the chapter 13.5.2 of UltraSPARC-IIi User's Manual. Particularly this instructions are used by NetBSD 4.0.1+ /sparc64 Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com> Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2014-08-17apb: add IOMMU flush register implementationMark Cave-Ayland
The IOMMU flush register is a write-only register used to remove entries from the hardware TLB. Allow guest writes to this register as a no-op, and return a value of 0 for reads. This fixes IOMMU DMA operations under NetBSD SPARC64. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2014-08-17sun4u: switch second PCI-ebus bridge BAR over to PCI IO spaceMark Cave-Ayland
The ebus is the sun4u equivalent of the old ISA bus which is already mapped at the beginning of PCI IO space within QEMU. NetBSD attempts to find the physical addresses of devices connected to the ebus by parsing the BARs of the PCI-ebus bridge and using the base address found by matching both the address space type and range for a particular ebus address. Since the second PCI-ebus bridge BAR is already aliased onto IO space, switch the BAR over to match and reduce the size to 0x1000 which is enough to cover all the legacy ioport devices whilst leaving the remaining IO space for other PCI devices. This allows NetBSD SPARC64 to correctly detect and access devices on the ebus. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2014-08-15Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-08-15' ↵Peter Maydell
into staging trivial patches for 2014-08-15 # gpg: Signature made Fri 15 Aug 2014 16:13:03 BST using RSA key ID A4C3D7DB # gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>" # gpg: aka "Michael Tokarev <mjt@corpit.ru>" # gpg: aka "Michael Tokarev <mjt@debian.org>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5 # Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514 66A7 BEE5 9D74 A4C3 D7DB * remotes/mjt/tags/trivial-patches-2014-08-15: ivshmem: check the value returned by fstat() l2cap: fix access to freed memory intc: i8259: Convert Array allocation to g_new0 ppc: convert g_new(qemu_irq usages to g_new0 ssi: xilinx_spi: Initialise CS GPIOs as NULL vl: free err qemu-options.hx: fix typo about l2tpv3 vmxnet3: don't use 'Yoda conditions' vl: don't use 'Yoda conditions' spice: don't use 'Yoda conditions' don't use 'Yoda conditions' isa-bus: don't use 'Yoda conditions' audio: don't use 'Yoda conditions' usb: don't use 'Yoda conditions' CODING_STYLE: Section about conditional statement pci-host: update uncorresponding description pci-host: update obsolete reference about piix_pci.c qemu-options.hx: fix a typo of chardev memory: Update obsolete comment about AddrRange field type apic: Fix reported DFR content Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-15qcow2: fix new_blocks double-free in alloc_refcount_block()Stefan Hajnoczi
Commit de82815db1c89da058b7fb941dab137d6d9ab738 ("qcow2: Handle failure for potentially large allocations") introduced a double-free of new_blocks in the alloc_refcount_block() error path. The qemu-iotests qcow2 026 test case was failing because qemu-io segfaulted. Make sure new_blocks is NULL after we free it the first time. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Reduce number of generator functions in __init__Maria Kustova
Some issues can be found only when a fuzzed image has a partial structure, e.g. has L1/L2 tables but no refcount ones. Generation of an entirely defined image limits these cases. Now the Image constructor creates only a header and a backing file name (if any), other image elements are generated in the 'create_image' API. Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Add generators of L1/L2 tablesMaria Kustova
Entries in L1/L2 entries are based on a portion of random guest clusters. L2 entries contain offsets to host image clusters filled with random data. Clusters for L1/L2 tables and guest data are selected randomly. Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Add fuzzing functions for L1/L2 table entriesMaria Kustova
Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15docs: Expand the list of supported image elements with L1/L2 tablesMaria Kustova
Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Public API for image-fuzzer/runner/runner.pyMaria Kustova
__init__.py provides the public API required by the test runner Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Generator of fuzzed qcow2 imagesMaria Kustova
The layout submodule of the qcow2 package creates a random valid image, randomly selects some amount of its fields, fuzzes them and write the fuzzed image to the file. Fuzzing process can be controlled by an external configuration. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Fuzzing functions for qcow2 imagesMaria Kustova
The fuzz submodule of the qcow2 image generator contains fuzzing functions for image fields. Each fuzzing function contains a list of constraints and a call of a helper function that randomly selects a fuzzed value satisfied to one of constraints. For now constraints include only known as invalid or potentially dangerous values. But after investigation of code coverage by fuzz tests they will be expanded by heuristic values based on inner checks and flows of a program under test. Now fuzzing of a header, header extensions and a backing file name is supported. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15image-fuzzer: Tool for fuzz tests executionMaria Kustova
The purpose of the test runner is to prepare the test environment (e.g. create a work directory, a test image, etc), execute a program under test with parameters, indicate a test failure if the program was killed during the test execution and collect core dumps, logs and other test artifacts. The test runner doesn't depend on an image format, so it can be used with any external image generator. [Fixed path to qcow2 format module "qcow2" instead of "../qcow2" since runner.py is no longer in a sub-directory. --Stefan] Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15docs: Specification for the image fuzzerMaria Kustova
'Overall fuzzer requirements' chapter contains the current product vision and features done and to be done. This chapter is still in progress. Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15ide: only constrain read/write requests to drive size, not other typesMichael Tokarev
Commit 58ac321135a introduced a check to ide dma processing which constrains all requests to drive size. However, apparently, some valid requests (like TRIM) does not fit in this constraint, and fails in 2.1. So check the range only for reads and writes. Cc: qemu-stable@nongnu.org Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15virtio-blk: Correct bug in support for flexible descriptor layoutMarc Marí
Without this correction, only a three descriptor layout is accepted, and requests with just two descriptors are not completed and no error message is displayed. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqos: Change free function called in mallocMarc Marí
Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqos: Correct mask to align size to PAGE_SIZE in malloc-pcMarc Marí
Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqtest: add QTEST_LOG for debugging qtest testcasesMarc Marí
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15ide: Fix segfault when flushing a device that doesn't existKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15qemu-options: add missing -drive discard option to cmdline helpPeter Lieven
Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15parallels: 2TB+ parallels images supportDenis V. Lunev
Parallels has released in the recent updates of Parallels Server 5/6 new addition to his image format. Images with signature WithouFreSpacExt have offsets in the catalog coded not as offsets in sectors (multiple of 512 bytes) but offsets coded in blocks (i.e. header->tracks * 512) In this case all 64 bits of header->nb_sectors are used for image size. This patch implements support of this for qemu-img and also adds specific check for an incorrect image. Images with block size greater than INT_MAX/513 are not supported. The biggest available Parallels image cluster size in the field is 1 Mb. Thus this limit will not hurt anyone. Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15parallels: split check for parallels format in parallels_openDenis V. Lunev
and rework error path a bit. There is no difference at the moment, but the code will be definitely shorter when additional processing will be required for WithouFreSpacExt Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Jeff Cody <jcody@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15parallels: replace tabs with spaces in block/parallels.cDenis V. Lunev
Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Jeff Cody <jcody@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15parallels: extend parallels format header with actual data valuesDenis V. Lunev
Parallels image format has several additional fields inside: - nb_sectors is actually 64 bit wide. Upper 32bits are not used for images with signature "WithoutFreeSpace" and must be explicitly zeroed according to Parallels. They will be used for images with signature "WithouFreSpacExt" - inuse is magic which means that the image is currently opened for read/write or was not closed correctly, the magic is 0x746f6e59 - data_off is the location of the first data block. It can be zero and in this case data starts just beyond the header aligned to 512 bytes. Though this field does not matter for read-only driver This patch adds these values to struct parallels_header and adds proper handling of nb_sectors for currently supported WithoutFreeSpace images. WithouFreSpacExt will be covered in next patches. Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Kevin Wolf <kwolf@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Jeff Cody <jcody@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15dataplane: stop trying on notifier errorCornelia Huck
If we fail to set up guest or host notifiers, there's no use trying again every time the guest kicks, so disable dataplane in that case. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15dataplane: fail notifier setting gracefullyCornelia Huck
The dataplane code is currently doing a hard exit if it fails to set up either guest or host notifiers. In practice, this may mean that a guest suddenly dies after a dataplane device failed to come up (e.g., when a file descriptor limit is hit for tne nth device). Let's just try to unwind the setup instead and return. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15dataplane: print why starting failedCornelia Huck
Setting up guest or host notifiers may fail, but the user will have no idea why: Let's print the error returned by the callback. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15channel-posix: using qemu_set_nonblock() instead of fcntl(O_NONBLOCK)Gonglei
Technically, fcntl(soc, F_SETFL, O_NONBLOCK) is incorrect since it clobbers all other file flags. We can use F_GETFL to get the current flags, set or clear the O_NONBLOCK flag, then use F_SETFL to set the flags. Using the qemu_set_nonblock() wrapper. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Wangxin <wangxinxin.wang@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15qemu-char: using qemu_set_nonblock() instead of fcntl(O_NONBLOCK)Gonglei
Technically, fcntl(soc, F_SETFL, O_NONBLOCK) is incorrect since it clobbers all other file flags. We can use F_GETFL to get the current flags, set or clear the O_NONBLOCK flag, then use F_SETFL to set the flags. Using the qemu_set_nonblock() wrapper. Signed-off-by: Wangxin <wangxinxin.wang@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15cmd646: synchronise UDMA interrupt status with DMA interrupt statusMark Cave-Ayland
Make sure that both registers are synchronised when being accessed through PCI configuration space. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15cmd646: allow MRDMODE interrupt status bits clearing from PCI config spaceMark Cave-Ayland
Make sure that we also update the normal DMA interrupt status bits at the same time, and alter the IRQ if being cleared accordingly. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15cmd646: switch cmd646_update_irq() to accept PCIDevice instead of PCIIDEStateMark Cave-Ayland
This is in preparation for adding configuration space accessors which accept PCIDevice as a parameter. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15cmd646: synchronise DMA interrupt status with UDMA interrupt statusMark Cave-Ayland
Make sure that the standard DMA interrupt status bits reflect any changes made to the UDMA interrupt status bits. The CMD646U2 datasheet claims that these bits are equivalent, and they must be synchronised for guests that manipulate both registers. Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15cmd646: add constants for CNTRL register accessMark Cave-Ayland
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15qtest/ide: Fix small memory leakJohn Snow
For libqos debugging purposes, it's nice to be able to assert that tests and associated libraries have no memory leaks. To that end, free up the trivial cmdline leak. The remaining leaks caused by pc_alloc_init are fixed instead by my first-fit pc_alloc implementation already on the qemu-devel mailing list. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqos: allow qpci_iomap to return BAR mapping sizeJohn Snow
This patch allows qpci_iomap to return the size of the BAR mapping that it created, to allow driver applications (e.g, ahci-test) to make determinations about the suitability or the mapping size, or in the specific case of AHCI, how many ports are supported by the HBA. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqos: Fixes a small memory leak.John Snow
Allow users the chance to clean up the QPCIBusPC structure by adding a small cleanup routine. Helps clear up small memory leaks during setup/teardown, to allow for cleaner debug output messages. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqtest: Correct small memory leak.John Snow
Fixes a small memory leak inside of libqtest. After we produce a test path and glib copies the string for itself, we should clean up our temporary copy. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15libqos: Correct memory leakJohn Snow
Fix a small memory leak inside of libqos, in the pc_alloc_init routine. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15qtest: Adding qtest_memset and qmemset.John Snow
Currently, libqtest allows for memread and memwrite, but does not offer a simple way to zero out regions of memory. This patch adds a simple function to do so. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15q35: Enable the ioapic device to be seen by qtest.John Snow
Currently, the ioapic device can not be found in a qtest environment when requesting "irq_interrupt_in ioapic" via the qtest socket. By mirroring how the ioapic is added in i44ofx (hw/i440/pc_piix.c), as a child of "q35," the device is able to be seen by qtest. Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15ahci: construct PIO Setup FIS for PIO commandsPaolo Bonzini
PIO commands should put a PIO Setup FIS in the receive area when data transfer ends. Currently QEMU does not do this and only places the D2H FIS at the end of the operation. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15ide: make all commands go through cmd_donePaolo Bonzini
AHCI has code to fill in the D2H FIS trigger the IRQ all over the place. Centralize this in a single cmd_done callback by generalizing the existing async_cmd_done callback. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15ide: stop PIO transfer on errorsPaolo Bonzini
This will provide a hook for sending the result of the command via the FIS receive area. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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