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2014-08-20qemu-io-cmds: g_renew() can't fail, bury dead error handlingMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-08-20block: Use g_new() & friends to avoid multiplying sizesMarkus Armbruster
g_new(T, n) is safer than g_malloc(sizeof(*v) * n) for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. Perhaps a conversion to g_malloc_n() would be neater in places, but that's merely four years old, and we can't use such newfangled stuff. This commit only touches allocations with size arguments of the form sizeof(T), plus two that use 4 instead of sizeof(uint32_t). We can make the others safe by converting to g_malloc_n() when it becomes available to us in a couple of years. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-08-20block: Use g_new() & friends where that makes obvious senseMarkus Armbruster
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer, for two reasons. One, it catches multiplication overflowing size_t. Two, it returns T * rather than void *, which lets the compiler catch more type errors. Patch created with Coccinelle, with two manual changes on top: * Add const to bdrv_iterate_format() to keep the types straight * Convert the allocation in bdrv_drop_intermediate(), which Coccinelle inexplicably misses Coccinelle semantic patch: @@ type T; @@ -g_malloc(sizeof(T)) +g_new(T, 1) @@ type T; @@ -g_try_malloc(sizeof(T)) +g_try_new(T, 1) @@ type T; @@ -g_malloc0(sizeof(T)) +g_new0(T, 1) @@ type T; @@ -g_try_malloc0(sizeof(T)) +g_try_new0(T, 1) @@ type T; expression n; @@ -g_malloc(sizeof(T) * (n)) +g_new(T, n) @@ type T; expression n; @@ -g_try_malloc(sizeof(T) * (n)) +g_try_new(T, n) @@ type T; expression n; @@ -g_malloc0(sizeof(T) * (n)) +g_new0(T, n) @@ type T; expression n; @@ -g_try_malloc0(sizeof(T) * (n)) +g_try_new0(T, n) @@ type T; expression p, n; @@ -g_realloc(p, sizeof(T) * (n)) +g_renew(T, p, n) @@ type T; expression p, n; @@ -g_try_realloc(p, sizeof(T) * (n)) +g_try_renew(T, p, n) Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-08-19Revert "memory: Use canonical path component as the name"Peter Maydell
This reverts commit b0225c2c0d89200a29dc3d0b59d2e87a79cbaeb8 (which breaks building with Xen enabled and also leaks memory). Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-19Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
SCSI changes that enable sending vendor-specific commands via virtio-scsi. Memory changes for QOMification and automatic tracking of MR lifetime. # gpg: Signature made Mon 18 Aug 2014 13:03:09 BST using RSA key ID 9B4D86F2 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: mtree: remove write-only field memory: Use canonical path component as the name memory: Use memory_region_name for name access memory: constify memory_region_name exec: Abstract away ref to memory region names loader: Abstract away ref to memory region names tpm_tis: remove instance_finalize callback memory: remove memory_region_destroy memory: convert memory_region_destroy to object_unparent ioport: split deletion and destruction nic: do not destroy memory regions in cleanup functions vga: do not dynamically allocate chain4_alias sysbus: remove unused function sysbus_del_io qom: object: move unparenting to the child property's release callback qom: object: delete properties before calling instance_finalize virtio-scsi: implement parse_cdb scsi-block, scsi-generic: implement parse_cdb scsi-block: extract scsi_block_is_passthrough scsi-bus: introduce parse_cdb in SCSIDeviceClass and SCSIBusInfo scsi-bus: prepare scsi_req_new for introduction of parse_cdb Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-19Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell
* remotes/qmp-unstable/queue/qmp: monitor: fix use after free dump.c: Fix memory leak issue in cleanup processing for dump_init() monitor: Remove hardcoded watchdog event names Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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/amit/for-2.2' into stagingPeter Maydell
* remotes/amit/for-2.2: virtio-serial: search for duplicate port names before adding new ports virtio-serial: create a linked list of all active devices Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-18virtio-serial: search for duplicate port names before adding new portsAmit Shah
Before adding new ports to VirtIOSerial devices, check if there's a conflict in the 'name' parameter. This ensures two virtserialports with identical names are not initialized. Reported-by: <mazhang@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2014-08-18virtio-serial: create a linked list of all active devicesAmit Shah
To ensure two virtserialports don't get added to the system with the same 'name' parameter, we need to access all the ports on all the devices added, and compare the names. We currently don't have a list of all VirtIOSerial devices added to the system. This commit adds a simple linked list in which devices are put when they're initialized, and removed when they go away. Signed-off-by: Amit Shah <amit.shah@redhat.com> Reviewed-by: Markus Armbruster <armbru@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>
2014-08-18mtree: remove write-only fieldPaolo Bonzini
ml->printed is never set to true. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18memory: Use canonical path component as the namePeter Crosthwaite
Rather than having the name as separate state. This prepares support for creating a MemoryRegion dynamically (i.e. without memory_region_init() and friends) and the MemoryRegion still getting a usable name. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18memory: Use memory_region_name for name accessPeter Crosthwaite
Despite being local to memory.c, use the helper function. This prepares support for fully QOMifiying the name field of MR (which will remove this state from MR completely). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18memory: constify memory_region_namePeter Crosthwaite
It doesn't change the MR and some prospective call sites will have const MRs at hand. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18exec: Abstract away ref to memory region namesPeter Crosthwaite
Use the function provided rather than spying on the struct. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18loader: Abstract away ref to memory region namesPeter Crosthwaite
Use the function provided rather than spying on the struct. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18tpm_tis: remove instance_finalize callbackPaolo Bonzini
It is never used, since ISA device are not hot-unpluggable. Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18memory: remove memory_region_destroyPaolo Bonzini
The function is empty after the previous patch, so remove it. Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-18memory: convert memory_region_destroy to object_unparentPaolo Bonzini
Explicitly call object_unparent in the few places where we will re-create the memory region. If the memory region is simply being destroyed as part of device teardown, let QOM handle it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17ioport: split deletion and destructionPaolo Bonzini
Of the two functions portio_list_del and portio_list_destroy, the latter is just freeing a memory area. However, portio_list_del is the logical equivalent of memory_region_del_subregion so destruction of memory regions does not belong there. Actually, neither of these APIs are in use; portio is mostly used by ISA devices or VGAs, and neither of these is currently hot-unpluggable. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17nic: do not destroy memory regions in cleanup functionsPaolo Bonzini
The memory regions should be destroyed in the unrealize function; since these NICs are not even qdev-ified, they cannot be unplugged and they do not have to do anything to destroy their memory regions. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17vga: do not dynamically allocate chain4_aliasPaolo Bonzini
Instead, add a boolean variable to indicate the presence of the region. This avoids a repeated malloc/free (later we can also avoid the add_child/unparent by changing the offset/size of the alias). Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17sysbus: remove unused function sysbus_del_ioPaolo Bonzini
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17qom: object: move unparenting to the child property's release callbackPaolo Bonzini
This ensures that the unparent callback is called automatically when the parent object is finalized. Note that there's no need to keep a reference neither in object_unparent nor in object_finalize_child_property. The reference held by the child property itself will do. Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-17qom: object: delete properties before calling instance_finalizePaolo Bonzini
This ensures that the children's unparent callback will still have a usable parent. Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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>
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