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Add a -g flag to the open command and the main qemu-io command line to allow opening a file growable. This is only allowed for protocols, mirroring the limitation exposed through bdrv_file_open. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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Fix up a couple of issues with validating the input of the various length arguments for the vectored I/O commands: - do the alignment check on each length instead the always 0 count argument - use a long long varibale for the cvtnum return value so that we can check wether it wasn't a number - check for a too large argument instead of truncating it Also refactor it into a common helper for all four calers and avoid parsing the numbers twice. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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Address a couple of review comments from Kevin. Signed-off-by: Christoph Hellwig <hch@lst.de>
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-no-kqemu -> -enable-kqemu kqemu is still present at compile time by default Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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with. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Set the Linux process name to the name argument specified with name. I find this useful to see which guests are taking CPU time in top. This doesn't affect ps, which checks argv[0], but rewriting the environment uses much more code, so I only used this simple way. v2: Use separate process= argument, no prefixes. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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In order to allow overriding flags that are set by configure, we have to append them instead of prepending as it is done so far. v2: Clarify documentation. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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control vector is saved/restored by virtio-pci, it does not belong in virtio. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This fixes segfault reported by Kevin Wolf, and simplifies the code in msix_save. Reported-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Otherwise if you hot remove an eepro100 NIC and then migrate, you get: Unknown savevm section or instance 'eeprom' 0 on the destination side. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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destroy_nic() requires that NICInfo::private by a PCIDevice pointer, but then goes on to require that the same pointer matches VLANClientState::opaque. That is no longer the case for virtio-net since qdev and wasn't previously the case for rtl8139, ne2k_pci or eepro100. Make the situation a lot more clear by maintaining a VLANClientState pointer in NICInfo. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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If no tap,sndbuf= arg is supplied, we use a default value. If TUNSETSNDBUF fails in this case, we should not abort. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: John Arbuckle <programmingkidx@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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":readahead=###:" suffix. Signed-off-by: Nolan Leake <nolan <at> sigbus.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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In order to not execute code we just compiled, let's replace signrom with a shell script that does the same thing while staying compatible to pretty much every system available. This should make cross-compilation for windows easier. aliguori: fix build when objdir != srcdir Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This reverts commit 707c0dbc. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The performance of qcow2 has improved meanwhile, so we don't need to special-case it any more. Switch the default to write-through caching like all other block drivers. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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On reflection, perhaps it does make sense to set a default value for the sndbuf= tap parameter. For best effect, sndbuf= should be set to just below the capacity of the physical NIC. Setting it higher will cause packets to be dropped before the limit is hit. Setting it much lower will not cause any problems unless you set it low enough such that the guest cannot queue up new packets before the NIC has emptied its queue. In Linux, txqueuelen=1000 by default for ethernet NICs. Given a 1500 byte MTU, 1Mb is a good choice for sndbuf. If it turns out that txqueuelen is actually much lower than this, then sndbuf is essentially disabled. In the event that txqueuelen is much higher, it's unlikely that the NIC will be able to empty a 1Mb queue. Thanks to Herbert Xu for this logic. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Cc: Herbert Xu <herbert.xu@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Attached patch lets configure find xen headers and xen libs when called with --extra-cflags and --extra-ldflags options. Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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- MCE features are initialized when VCPU is intialized according to CPUID. - A monitor command "mce" is added to inject a MCE. - A new interrupt mask: CPU_INTERRUPT_MCE is added to inject the MCE. aliguori: fix build for linux-user Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Add explicit padding to MIPS signal frame structures. Signed-off-by: Paul Brook <paul@codesourcery.com>
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Enable NPTL support for MIPS usermode emulation. Signed-off-by: Paul Brook <paul@codesourcery.com>
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Implement MIPS ll/sc instructions using atomic compare+exchange. Signed-off-by: Paul Brook <paul@codesourcery.com>
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Implement cpu_set_tls for MIPS. Signed-off-by: Paul Brook <paul@codesourcery.com>
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The clone syscall takes 6 args. Signed-off-by: Paul Brook <paul@codesourcery.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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* fix secondary bus setup. * use base->name instead of "FIXME" for device name. Yes, the device name is redundant. Only for drivers converted to qdev already though. Once all drivers are converted we can and should kill it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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The only purpose DeviceType serves is creating a linked list of DeviceInfo structs. This removes DeviceType and add a next field to DeviceInfo instead, so the DeviceInfo structs can be changed that way. Elimitates a pointless extra level of indirection. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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BusInfo is filled with name and size (pretty much like I did for DeviceInfo as well). There is also a function pointer to print bus-specific device information to the monitor. sysbus is hooked up there, I've also added a print function for PCI. Device creation is slightly modified as well: The device type search loop now also checks the bus type while scanning the list instead of complaining thereafter in case of a mismatch. This effectively gives each bus a private namespace for device names. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Paul Brook <paul@codesourcery.com>
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Makes pci_qdev_register take a PCIDeviceInfo struct instead of a bunch of parameters. Also adds config_read and config_write callbacks to PCIDeviceInfo, so drivers needing these can be converted to the qdev device API too. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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the qemu_malloc routines
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Fixes getrlimit implementation that overwrote the result of the syscall instead of converting it Signed-off-by: Ulrich Hecht <uli@suse.de> Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
