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* virtio: Convert exit to unrealizeAndreas Färber2013-12-093-13/+18
| | | | | Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio: Complete converting VirtioDevice to QOM realizeAndreas Färber2013-12-091-6/+0
| | | | | | | Drop VirtioDeviceClass::init. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-rng: Convert to QOM realizeAndreas Färber2013-12-091-13/+11
| | | | | Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-balloon: Convert to QOM realizeAndreas Färber2013-12-091-5/+6
| | | | | Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio: Start converting VirtioDevice to QOM realizeAndreas Färber2013-12-091-15/+27
| | | | | | | | | | Temporarily allow either VirtioDeviceClass::init or VirtioDeviceClass::realize. Introduce VirtioDeviceClass::unrealize for symmetry. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-rng: QOM realize preparationsAndreas Färber2013-12-091-5/+5
| | | | | | | | Rename qdev -> dev because that's what realize's argument is called by convention. No need to keep more "qdev" around than necessary. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-balloon: QOM realize preparationsAndreas Färber2013-12-091-6/+6
| | | | | | | | | | Rename qdev -> dev since that's what realize's argument is called by convention. No need to keep more "qdev" around than necessary. Avoid duplicate VIRTIO_DEVICE() cast. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-pci: add device_unplugged callbackPaolo Bonzini2013-12-091-2/+10
| | | | | | | | | | | | | | | | This fixes a crash in hot-unplug of virtio-pci devices behind a PCIe switch. The crash happens because the ioeventfd is still set whent the child is destroyed (destruction happens in postorder). Then the proxy tries to unset to ioeventfd, but the virtqueue structure that holds the EventNotifier has been trashed in the meanwhile. kvm_set_ioeventfd_pio does not expect failure and aborts. The fix is simply to move parts of uninitialization to a new device_unplugged callback, which is called before the child is destroyed. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-rng: switch exit callback to VirtioDeviceClassPaolo Bonzini2013-12-091-6/+4
| | | | | | | | | This ensures hot-unplug is handled properly by the proxy, and avoids leaking bus_name which is freed by virtio_device_exit. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-balloon: switch exit callback to VirtioDeviceClassPaolo Bonzini2013-12-091-6/+4
| | | | | | | | | This ensures hot-unplug is handled properly by the proxy, and avoids leaking bus_name which is freed by virtio_device_exit. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-bus: cleanup plug/unplug interfacePaolo Bonzini2013-12-092-11/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Right now we have these pairs: - virtio_bus_plug_device/virtio_bus_destroy_device. The first takes a VirtIODevice, the second takes a VirtioBusState - device_plugged/device_unplug callbacks in the VirtioBusClass (here it's just the naming that is inconsistent) - virtio_bus_destroy_device is not called by anyone (and since it calls qdev_free, it would be called by the proxies---but then the callback is useless since the proxies can do whatever they want before calling virtio_bus_destroy_device) And there is a k->init but no k->exit, hence virtio_device_exit is overwritten by subclasses (except virtio-9p). This cleans it up by: - renaming the device_unplug callback to device_unplugged - renaming virtio_bus_plug_device to virtio_bus_device_plugged, matching the callback name - renaming virtio_bus_destroy_device to virtio_bus_device_unplugged, removing the qdev_free, making it take a VirtIODevice and calling it from virtio_device_exit - adding a k->exit callback virtio_device_exit is still overwritten, the next patches will fix that. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-pci: remove vdev fieldPaolo Bonzini2013-12-092-46/+65
| | | | | | | | | The vdev field is complicated to synchronize. Just access the BusState's list of children. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-bus: remove vdev fieldPaolo Bonzini2013-12-093-31/+45
| | | | | | | | | The vdev field is complicated to synchronize. Just access the BusState's list of children. Cc: qemu-stable@nongnu.org Acked-by: Andreas Faerber <afaerber@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-rng: add check of periodAmos Kong2013-11-211-0/+6
| | | | | | | | | | | | | | If period is assigned to 0, limit timer will expire immediately. It causes a qemu warning: "main-loop: WARNING: I/O thread spun for 1000 iterations" This limit is meaningless. This patch forbids to assign 0 to period. Reviewed-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Message-id: 1385031203-23790-1-git-send-email-akong@redhat.com Signed-off-by: Anthony Liguori <aliguori@amazon.com>
* qdev: Drop misleading qdev_free() functionStefan Hajnoczi2013-11-051-3/+1
| | | | | | | | | | | | | | | | | | The qdev_free() function name is misleading since all the function does is unlink the device from its parent. The device is not necessarily freed. The device will be freed when its QObject refcount reaches zero. It is usual for the parent (bus) to hold the final reference but there are cases where something else holds a reference so "free" is a misleading name. Call object_unparent(obj) directly instead of having a qdev wrapper function. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* hw: set interrupts using pci irq wrappersMarcel Apfelbaum2013-10-141-2/+2
| | | | | | | | | | | | | | pci_set_irq and the other pci irq wrappers use PCI_INTERRUPT_PIN config register to compute device INTx pin to assert/deassert. An irq is allocated using pci_allocate_irq wrapper only if is needed by non pci devices. Removed irq related fields from state if not used anymore. Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori2013-09-031-2/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pc,pci,virtio fixes and cleanups This includes pc and pci cleanups and enhancements, and a virtio bugfix for level interrupts. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Sun 01 Sep 2013 03:15:36 AM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By Michael S. Tsirkin (3) and others # Via Michael S. Tsirkin * mst/tags/for_anthony: virtio_pci: fix level interrupts with irqfd pc: reduce duplication, fix PIIX descriptions hw: Clean up bogus default boot order pci: add config space access traces pc: fix regression for 64 bit PCI memory pci: Introduce helper to retrieve a PCI device's DMA address space Message-id: 1378023590-11109-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
| * virtio_pci: fix level interrupts with irqfdMichael S. Tsirkin2013-09-011-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 62c96360ae7f2c7a8b029277fbb7cb082fdef7fd virtio-pci: fix level interrupts only helps systems without irqfd: on systems with irqfd support we passed in flag requesting irqfd even when msix is disabled. As a result, for level interrupts we didn't install an fd handler so unmasking an fd had no effect. Fix this up. Cc: qemu-stable@nongnu.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* | qom: Pass available size to object_initialize()Andreas Färber2013-08-301-8/+8
| | | | | | | | | | | | | | To be passed on to object_initialize_with_type(). Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (virtio-ccw) Signed-off-by: Andreas Färber <afaerber@suse.de>
* | qdev: Pass size to qbus_create_inplace()Andreas Färber2013-08-302-2/+2
| | | | | | | | | | | | | | | | | | | | To be passed to object_initialize(). Since commit 39355c3826f5d9a2eb1ce3dc9b4cdd68893769d6 the argument is void*, so drop some superfluous (BusState *) casts or direct parent field usages. Signed-off-by: Andreas Färber <afaerber@suse.de>
* | virtio-mmio: Pass size to virtio_mmio_bus_new()Andreas Färber2013-08-301-3/+5
| | | | | | | | | | | | | | To be passed to qbus_create_initialize(). Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* | virtio-pci: Pass size to virtio_pci_bus_new()Andreas Färber2013-08-301-3/+5
| | | | | | | | | | | | | | To be passed to qbus_create_inplace(). Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
* | virtio: Remove unnecessary OBJECT() castsPeter Maydell2013-08-301-8/+8
| | | | | | | | | | | | | | | | There's no need to cast the first argument of object_initialize() to Object. Remove these unnecessary casts. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
* | Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5Anthony Liguori2013-08-291-1/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qemu-kvm/uq/master: kvm-stub: fix compilation kvm: shorten the parameter list for get_real_device() kvm: i386: fix LAPIC TSC deadline timer save/restore kvm-all.c: max_cpus should not exceed KVM vcpu limit kvm: Simplify kvm_handle_io kvm: x86: fix setting IA32_FEATURE_CONTROL with nested VMX disabled kvm: add KVM_IRQFD_FLAG_RESAMPLE support kvm: migrate vPMU state target-i386: remove tabs from target-i386/cpu.h Initialize IA32_FEATURE_CONTROL MSR in reset and migration Conflicts: target-i386/cpu.h target-i386/kvm.c aliguori: fixup trivial conflicts due to whitespace and added cpu argument Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
| * | kvm: add KVM_IRQFD_FLAG_RESAMPLE supportVincenzo Maffione2013-08-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Added an EventNotifier* parameter to kvm-all.c:kvm_irqchip_add_irqfd_notifier(), in order to give KVM another eventfd to be used as "resamplefd". See the documentation in the linux kernel sources in Documentation/virtual/kvm/api.txt (section 4.75) for more details. When the added parameter is passed NULL, the behaviour of the function is unchanged with respect to the previous versions. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* | | Merge remote-tracking branch 'mst/tags/for_anthony' into stable-1.5Anthony Liguori2013-08-291-1/+1
|\ \ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pc,pci,virtio fixes and cleanups This includes pc and pci cleanups, future-proofing of ROM files, and a virtio bugfix correcting splice on virtio console. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon 26 Aug 2013 01:34:20 AM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By Markus Armbruster (5) and others # Via Michael S. Tsirkin * mst/tags/for_anthony: virtio: virtqueue_get_avail_bytes: fix desc_pa when loop over the indirect descriptor table pc_piix: Kill pc_init1() memory region args pc: pc_compat_1_4() now can call pc_compat_1_5() pc: Create pc_compat_*() functions pc: Kill pc_init_pci_1_0() pc: Don't explode QEMUMachineInitArgs into local variables needlessly pc: Don't prematurely explode QEMUMachineInitArgs ppc: Don't duplicate QEMUMachineInitArgs in PPCE500Params ppc: Don't explode QEMUMachineInitArgs into local variables needlessly sun4: Don't prematurely explode QEMUMachineInitArgs q35: Add PCIe switch to example q35 configuration loader: store FW CFG ROM files in RAM arch_init: align MR size to target page size pc: cleanup 1.4 compat support Message-id: 1377535318-30491-1-git-send-email-mst@redhat.com
| * | virtio: virtqueue_get_avail_bytes: fix desc_pa when loop over the indirect ↵yinyin2013-08-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | descriptor table virtqueue_get_avail_bytes: when found a indirect desc, we need loop over it. /* loop over the indirect descriptor table */ indirect = 1; max = vring_desc_len(desc_pa, i) / sizeof(VRingDesc); num_bufs = i = 0; desc_pa = vring_desc_addr(desc_pa, i); But, It init i to 0, then use i to update desc_pa. so we will always get: desc_pa = vring_desc_addr(desc_pa, 0); the last two line should swap. Cc: qemu-stable@nongnu.org Signed-off-by: Yin Yin <yin.yin@cs2c.com.cn> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* | | aio / timers: Switch entire codebase to the new timer APIAlex Bligh2013-08-222-11/+11
|/ / | | | | | | | | | | | | | | | | | | | | This is an autogenerated patch using scripts/switch-timer-api. Switch the entire code base to using the new timer API. Note this patch may introduce some line length issues. Signed-off-by: Alex Bligh <alex@alex.org.uk> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* | Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori2013-08-123-0/+7
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci,virtio fixes for 1.6 This includes some last-minute bugfixes for 1.6. All very small patches that also look very safe to me. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon 12 Aug 2013 04:28:57 AM CDT using RSA key ID D28D5469 # gpg: Can't check signature: public key not found # By Michael S. Tsirkin (2) and others # Via Michael S. Tsirkin * mst/tags/for_anthony: vhost: clear signalled_used_valid on vhost stop virtio: clear signalled_used_valid when switching from dataplane i82801b11: Fix i82801b11 PCI host bridge config space pc: disable pci-info for 1.6 Message-id: 1376308831-19978-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * | vhost: clear signalled_used_valid on vhost stopMichael S. Tsirkin2013-08-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When vhost device stops, its implementation synchronizes kernel state back to virtio.c so we can continue emulating the device in userspace. This patch ensures that virtio.c's signalled_used_valid flag is reset so that userspace does not suppress guest notifications due to stale signalled_used values. Cc: qemu-stable@nongnu.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| * | virtio: clear signalled_used_valid when switching from dataplaneStefan Hajnoczi2013-08-122-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the dataplane thread stops, its vring.c implementation synchronizes vring state back to virtio.c so we can continue emulating the virtio device. This patch ensures that virtio.c's signalled_used_valid flag is reset so that we do not suppress guest notifications due to stale signalled_used values. Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* | | hw/virtio/virtio-mmio: Make QueueNumMax read 0 for unavailable queuesPeter Maydell2013-08-121-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The virtio-mmio spec says that QueueNumMax must read zero for queues which are unavailable; implement this, rather than always returning VIRTQUEUE_MAX_SIZE. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1374853288-9912-3-git-send-email-peter.maydell@linaro.org Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
* | | hw/virtio/virtio: Don't allow guests to add/remove queuesPeter Maydell2013-08-091-3/+9
|/ / | | | | | | | | | | | | | | | | | | | | A queue size of 0 is used to indicate a nonexistent queue, so don't allow the guest to flip a queue between zero-size and non-zero-size. Don't permit setting of negative queue sizes either. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1374853288-9912-2-git-send-email-peter.maydell@linaro.org Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
* | devices: Associate devices to their logical categoryMarcel Apfelbaum2013-07-294-0/+11
| | | | | | | | | | | | | | | | | | The category will be used to sort the devices displayed in the command line help. Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Message-id: 1375107465-25767-4-git-send-email-marcel.a@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* | misc: Fix new typos in comments and stringsStefan Weil2013-07-271-2/+2
|/ | | | | | | | | | | | | | | | All these typos were found by codespell. sould -> should emperical -> empirical intialization -> initialization successfuly -> successfully gaurantee -> guarantee Fix also another error (before before) in the same context. Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* Merge remote-tracking branch 'pmaydell/tags/pull-arm-devs-20130722' into stagingAnthony Liguori2013-07-223-3/+459
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arm-devs queue # gpg: Signature made Mon 22 Jul 2013 06:38:52 AM CDT using RSA key ID 14360CDE # gpg: Can't check signature: public key not found # By Peter Maydell (8) and Soren Brinkmann (2) # Via Peter Maydell * pmaydell/tags/pull-arm-devs-20130722: hw/arm: Use 'load_ramdisk()' for loading ramdisks w/ U-Boot header hw/loader: Support ramdisk with u-boot header vexpress: Add virtio-mmio transports vexpress: Make VEDBoardInfo extend arm_boot_info arm/boot: Allow boards to modify the FDT blob virtio: Implement MMIO based virtio transport virtio: Support transports which can specify the vring alignment virtio: Add support for guest setting of queue size arm/boot: Use qemu_devtree_setprop_sized_cells() device_tree: Add qemu_devtree_setprop_sized_cells() utility functions Message-id: 1374493427-3254-1-git-send-email-peter.maydell@linaro.org Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
| * virtio: Implement MMIO based virtio transportPeter Maydell2013-07-192-0/+422
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the generic MMIO based virtio transport. This patch includes some fixes for bugs spotted by Ying-Shiuan Pan <yspan@itri.org.tw>. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1373977512-28932-6-git-send-email-peter.maydell@linaro.org [Fred changes: updated to new virtio-bus mechanisms] Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> [PMM changes: * fixed trivial makefile conflict * removed unused int_enable * host_features doesn't need migrating * reset guest accessible state in the reset function * minor style fixes like extra blank lines * RAZ/WI if there's no backend * made transport size 0x200, in line with kvmtool * set has_variable_vring_alignment ]
| * virtio: Support transports which can specify the vring alignmentPeter Maydell2013-07-191-3/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support virtio transports which can specify the vring alignment (ie where the guest communicates this to the host) by providing a new virtio_queue_set_align() function. (The default alignment remains as before.) Transports which wish to make use of this must set the has_variable_vring_alignment field in their VirtioBusClass struct to true; they can then change the alignment via virtio_queue_set_align(). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1373977512-28932-5-git-send-email-peter.maydell@linaro.org
| * virtio: Add support for guest setting of queue sizePeter Maydell2013-07-191-0/+8
| | | | | | | | | | | | | | | | | | The MMIO virtio transport spec allows the guest to tell the host how large the queue size is. Add virtio_queue_set_num() function which implements this in the QEMU common virtio support code. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1373977512-28932-4-git-send-email-peter.maydell@linaro.org
* | dataplane: sync virtio.c and vring.c virtqueue stateStefan Hajnoczi2013-07-191-3/+5
|/ | | | | | | | | | | | | Load the virtio.c state into vring.c when we start dataplane mode and vice versa when stopping dataplane mode. This patch makes it possible to start and stop dataplane any time while the guest is running. This will eventually allow us to go back to QEMU main loop for bdrv_drain_all() and live migration. In the meantime, this patch makes the dataplane lifecycle more robust but should make no visible difference. It may be useful in the virtio-net dataplane effort. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* add a header file for atomic operationsPaolo Bonzini2013-07-041-5/+4
| | | | | | | | We're already using them in several places, but __sync builtins are just too ugly to type, and do not provide seqcst load/store operations. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* hw/[u-x]*: pass owner to memory_region_init* functionsPaolo Bonzini2013-07-041-2/+2
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: add ref/unref callsPaolo Bonzini2013-07-043-0/+10
| | | | | | | | | | | | | | | | | Add ref/unref calls at the following places: - places where memory regions are stashed by a listener and used outside the BQL (including in Xen or KVM). - memory_region_find callsites - creation of aliases and containers (only the aliased/contained region gets a reference to avoid loops) - around calls to del_subregion/add_subregion, where the region could disappear after the first call Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: add owner argument to initialization functionsPaolo Bonzini2013-07-041-1/+1
| | | | Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* memory: make section size a 128-bit integerPaolo Bonzini2013-06-203-4/+4
| | | | | | | | | | | So far, the size of all regions passed to listeners could fit in 64 bits, because artificial regions (containers and aliases) are eliminated by the memory core, leaving only device regions which have reasonable sizes An IOMMU however cannot be eliminated by the memory core, and may have an artificial size, hence we may need 65 bits to represent its size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* virtio-rng: Fix crash with non-default backendCole Robinson2013-06-181-1/+1
| | | | | | | | | | | | | | | | | 'default_backend' isn't always set, but 'rng' is, so use that. $ ./x86_64-softmmu/qemu-system-x86_64 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0 Segmentation fault (core dumped) Regressed with virtio refactoring in 59ccd20a9ac719cff82180429458728f03ec612f CC: qemu-stable@nongnu.org Signed-off-by: Cole Robinson <crobinso@redhat.com> Acked-by: Amit Shah <amit.shah@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Tested-by: Michael Roth <mdroth@linux.vnet.ibm.com> Message-id: bf4505014a0a941dbd3c62068f3cf2c496b69e6a.1370023944.git.crobinso@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qdev: fix get_fw_dev_path to support to add nothing to fw_dev_pathAmos Kong2013-05-301-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Recent virtio refactoring in QEMU made virtio-bus become the parent bus of scsi-bus, and virtio-bus doesn't have get_fw_dev_path implementation, typename will be added to fw_dev_path by default, the new fw_dev_path could not be identified by seabios. It causes that bootindex parameter of scsi device doesn't work. This patch implements get_fw_dev_path() in BusClass, it will be called if bus doesn't implement the method, tyename will be added to fw_dev_path. If the implemented method returns NULL, nothing will be added to fw_dev_path. It also implements virtio_bus_get_fw_dev_path() to return NULL. Then QEMU will still pass original style of fw_dev_path to seabios. Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1369814202-10346-1-git-send-email-akong@redhat.com -- v2: only add nothing to fw_dev_path when get_fw_dev_path() is implemented and returns NULL. then it will not effect other devices don't have get_fw_dev_path() implementation. v3: implement default get_fw_dev_path() in BusClass Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* virtio-pci: drop unused wmb macroMichael S. Tsirkin2013-05-291-6/+0
| | | | | | | | | The implementation is wrong for kvm, and it's unused anyway. Drop it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Message-id: 20130528102023.GA30055@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* virtio: add virtio_bus_get_dev_path.KONRAD Frederic2013-05-161-0/+14
| | | | | | | | | | | This adds virtio_bus_get_dev_path to fix migration id string which is wrong since the virtio refactoring. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1368723967-21050-1-git-send-email-fred.konrad@greensocs.com Cc: mdroth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* virtio-net-x: forward the netclient name and type.KONRAD Frederic2013-05-151-0/+3
| | | | | | | | | This forwards the name and the type of virtio-net-x to fix the bad behaviour of "info network" command. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Message-id: 1368619970-23892-3-git-send-email-fred.konrad@greensocs.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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