root / hw / virtio / virtio-pci.c @ f4dd69aa
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/*
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* Virtio PCI Bindings
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*
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* Copyright IBM, Corp. 2007
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* Copyright (c) 2009 CodeSourcery
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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* Paul Brook <paul@codesourcery.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#include <inttypes.h> |
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#include "hw/virtio/virtio.h" |
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#include "hw/virtio/virtio-blk.h" |
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#include "hw/virtio/virtio-net.h" |
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#include "hw/virtio/virtio-serial.h" |
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#include "hw/virtio/virtio-scsi.h" |
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#include "hw/virtio/virtio-balloon.h" |
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#include "hw/pci/pci.h" |
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#include "qemu/error-report.h" |
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#include "hw/pci/msi.h" |
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#include "hw/pci/msix.h" |
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#include "hw/loader.h" |
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#include "sysemu/kvm.h" |
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#include "sysemu/blockdev.h" |
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#include "virtio-pci.h" |
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#include "qemu/range.h" |
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#include "hw/virtio/virtio-bus.h" |
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#include "qapi/visitor.h" |
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/* from Linux's linux/virtio_pci.h */
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/* A 32-bit r/o bitmask of the features supported by the host */
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#define VIRTIO_PCI_HOST_FEATURES 0 |
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/* A 32-bit r/w bitmask of features activated by the guest */
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#define VIRTIO_PCI_GUEST_FEATURES 4 |
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/* A 32-bit r/w PFN for the currently selected queue */
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#define VIRTIO_PCI_QUEUE_PFN 8 |
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/* A 16-bit r/o queue size for the currently selected queue */
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#define VIRTIO_PCI_QUEUE_NUM 12 |
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/* A 16-bit r/w queue selector */
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#define VIRTIO_PCI_QUEUE_SEL 14 |
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/* A 16-bit r/w queue notifier */
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#define VIRTIO_PCI_QUEUE_NOTIFY 16 |
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/* An 8-bit device status register. */
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#define VIRTIO_PCI_STATUS 18 |
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/* An 8-bit r/o interrupt status register. Reading the value will return the
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* current contents of the ISR and will also clear it. This is effectively
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* a read-and-acknowledge. */
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#define VIRTIO_PCI_ISR 19 |
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/* MSI-X registers: only enabled if MSI-X is enabled. */
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/* A 16-bit vector for configuration changes. */
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#define VIRTIO_MSI_CONFIG_VECTOR 20 |
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/* A 16-bit vector for selected queue notifications. */
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#define VIRTIO_MSI_QUEUE_VECTOR 22 |
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/* Config space size */
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#define VIRTIO_PCI_CONFIG_NOMSI 20 |
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#define VIRTIO_PCI_CONFIG_MSI 24 |
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#define VIRTIO_PCI_REGION_SIZE(dev) (msix_present(dev) ? \
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VIRTIO_PCI_CONFIG_MSI : \ |
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VIRTIO_PCI_CONFIG_NOMSI) |
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/* The remaining space is defined by each driver as the per-driver
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* configuration space */
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#define VIRTIO_PCI_CONFIG(dev) (msix_enabled(dev) ? \
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VIRTIO_PCI_CONFIG_MSI : \ |
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VIRTIO_PCI_CONFIG_NOMSI) |
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/* How many bits to shift physical queue address written to QUEUE_PFN.
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* 12 is historical, and due to x86 page size. */
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#define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12 |
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/* Flags track per-device state like workarounds for quirks in older guests. */
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#define VIRTIO_PCI_FLAG_BUS_MASTER_BUG (1 << 0) |
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/* QEMU doesn't strictly need write barriers since everything runs in
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* lock-step. We'll leave the calls to wmb() in though to make it obvious for
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* KVM or if kqemu gets SMP support.
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*/
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#define wmb() do { } while (0) |
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/* HACK for virtio to determine if it's running a big endian guest */
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bool virtio_is_big_endian(void); |
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static void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev); |
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/* virtio device */
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/* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */
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static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d) |
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{ |
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return container_of(d, VirtIOPCIProxy, pci_dev.qdev);
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} |
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/* DeviceState to VirtIOPCIProxy. Note: used on datapath,
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* be careful and test performance if you change this.
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*/
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static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d) |
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{ |
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return container_of(d, VirtIOPCIProxy, pci_dev.qdev);
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} |
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static void virtio_pci_notify(DeviceState *d, uint16_t vector) |
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{ |
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VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d); |
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if (msix_enabled(&proxy->pci_dev))
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msix_notify(&proxy->pci_dev, vector); |
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else
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qemu_set_irq(proxy->pci_dev.irq[0], proxy->vdev->isr & 1); |
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} |
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static void virtio_pci_save_config(DeviceState *d, QEMUFile *f) |
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{ |
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VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
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pci_device_save(&proxy->pci_dev, f); |
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msix_save(&proxy->pci_dev, f); |
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if (msix_present(&proxy->pci_dev))
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qemu_put_be16(f, proxy->vdev->config_vector); |
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} |
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static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f) |
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{ |
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VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
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if (msix_present(&proxy->pci_dev))
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qemu_put_be16(f, virtio_queue_vector(proxy->vdev, n)); |
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} |
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static int virtio_pci_load_config(DeviceState *d, QEMUFile *f) |
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{ |
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VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
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int ret;
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ret = pci_device_load(&proxy->pci_dev, f); |
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if (ret) {
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return ret;
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} |
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msix_unuse_all_vectors(&proxy->pci_dev); |
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msix_load(&proxy->pci_dev, f); |
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if (msix_present(&proxy->pci_dev)) {
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qemu_get_be16s(f, &proxy->vdev->config_vector); |
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} else {
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proxy->vdev->config_vector = VIRTIO_NO_VECTOR; |
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} |
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if (proxy->vdev->config_vector != VIRTIO_NO_VECTOR) {
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return msix_vector_use(&proxy->pci_dev, proxy->vdev->config_vector);
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} |
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return 0; |
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} |
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static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f) |
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{ |
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VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
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uint16_t vector; |
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if (msix_present(&proxy->pci_dev)) {
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qemu_get_be16s(f, &vector); |
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} else {
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vector = VIRTIO_NO_VECTOR; |
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} |
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virtio_queue_set_vector(proxy->vdev, n, vector); |
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if (vector != VIRTIO_NO_VECTOR) {
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return msix_vector_use(&proxy->pci_dev, vector);
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} |
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return 0; |
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} |
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static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy, |
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int n, bool assign, bool set_handler) |
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{ |
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VirtQueue *vq = virtio_get_queue(proxy->vdev, n); |
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EventNotifier *notifier = virtio_queue_get_host_notifier(vq); |
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int r = 0; |
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if (assign) {
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r = event_notifier_init(notifier, 1);
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if (r < 0) { |
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error_report("%s: unable to init event notifier: %d",
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__func__, r); |
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return r;
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} |
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virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler);
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memory_region_add_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2,
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true, n, notifier);
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} else {
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memory_region_del_eventfd(&proxy->bar, VIRTIO_PCI_QUEUE_NOTIFY, 2,
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true, n, notifier);
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virtio_queue_set_host_notifier_fd_handler(vq, false, false); |
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event_notifier_cleanup(notifier); |
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} |
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return r;
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} |
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static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy) |
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{ |
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int n, r;
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if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) ||
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proxy->ioeventfd_disabled || |
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proxy->ioeventfd_started) { |
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return;
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} |
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for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { |
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if (!virtio_queue_get_num(proxy->vdev, n)) {
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continue;
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} |
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r = virtio_pci_set_host_notifier_internal(proxy, n, true, true); |
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if (r < 0) { |
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goto assign_error;
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} |
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} |
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proxy->ioeventfd_started = true;
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return;
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assign_error:
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while (--n >= 0) { |
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if (!virtio_queue_get_num(proxy->vdev, n)) {
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continue;
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} |
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r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
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assert(r >= 0);
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} |
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proxy->ioeventfd_started = false;
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error_report("%s: failed. Fallback to a userspace (slower).", __func__);
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} |
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static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy) |
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{ |
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int r;
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int n;
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if (!proxy->ioeventfd_started) {
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return;
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} |
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for (n = 0; n < VIRTIO_PCI_QUEUE_MAX; n++) { |
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if (!virtio_queue_get_num(proxy->vdev, n)) {
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continue;
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} |
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r = virtio_pci_set_host_notifier_internal(proxy, n, false, false); |
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assert(r >= 0);
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} |
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proxy->ioeventfd_started = false;
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} |
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static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val) |
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{ |
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VirtIOPCIProxy *proxy = opaque; |
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VirtIODevice *vdev = proxy->vdev; |
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hwaddr pa; |
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switch (addr) {
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case VIRTIO_PCI_GUEST_FEATURES:
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/* Guest does not negotiate properly? We have to assume nothing. */
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if (val & (1 << VIRTIO_F_BAD_FEATURE)) { |
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val = virtio_bus_get_vdev_bad_features(&proxy->bus); |
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} |
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virtio_set_features(vdev, val); |
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break;
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case VIRTIO_PCI_QUEUE_PFN:
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pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
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if (pa == 0) { |
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virtio_pci_stop_ioeventfd(proxy); |
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virtio_reset(proxy->vdev); |
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msix_unuse_all_vectors(&proxy->pci_dev); |
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} |
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else
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virtio_queue_set_addr(vdev, vdev->queue_sel, pa); |
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break;
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case VIRTIO_PCI_QUEUE_SEL:
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if (val < VIRTIO_PCI_QUEUE_MAX)
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vdev->queue_sel = val; |
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break;
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case VIRTIO_PCI_QUEUE_NOTIFY:
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if (val < VIRTIO_PCI_QUEUE_MAX) {
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virtio_queue_notify(vdev, val); |
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} |
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break;
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case VIRTIO_PCI_STATUS:
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if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) {
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virtio_pci_stop_ioeventfd(proxy); |
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} |
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virtio_set_status(vdev, val & 0xFF);
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if (val & VIRTIO_CONFIG_S_DRIVER_OK) {
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virtio_pci_start_ioeventfd(proxy); |
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} |
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if (vdev->status == 0) { |
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virtio_reset(proxy->vdev); |
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msix_unuse_all_vectors(&proxy->pci_dev); |
309 |
} |
310 |
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/* Linux before 2.6.34 sets the device as OK without enabling
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the PCI device bus master bit. In this case we need to disable
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some safety checks. */
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if ((val & VIRTIO_CONFIG_S_DRIVER_OK) &&
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!(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
316 |
proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
317 |
} |
318 |
break;
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case VIRTIO_MSI_CONFIG_VECTOR:
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msix_vector_unuse(&proxy->pci_dev, vdev->config_vector); |
321 |
/* Make it possible for guest to discover an error took place. */
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if (msix_vector_use(&proxy->pci_dev, val) < 0) |
323 |
val = VIRTIO_NO_VECTOR; |
324 |
vdev->config_vector = val; |
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break;
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case VIRTIO_MSI_QUEUE_VECTOR:
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msix_vector_unuse(&proxy->pci_dev, |
328 |
virtio_queue_vector(vdev, vdev->queue_sel)); |
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/* Make it possible for guest to discover an error took place. */
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if (msix_vector_use(&proxy->pci_dev, val) < 0) |
331 |
val = VIRTIO_NO_VECTOR; |
332 |
virtio_queue_set_vector(vdev, vdev->queue_sel, val); |
333 |
break;
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334 |
default:
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error_report("%s: unexpected address 0x%x value 0x%x",
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336 |
__func__, addr, val); |
337 |
break;
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} |
339 |
} |
340 |
|
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static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
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{ |
343 |
VirtIODevice *vdev = proxy->vdev; |
344 |
uint32_t ret = 0xFFFFFFFF;
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345 |
|
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switch (addr) {
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case VIRTIO_PCI_HOST_FEATURES:
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348 |
ret = proxy->host_features; |
349 |
break;
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350 |
case VIRTIO_PCI_GUEST_FEATURES:
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351 |
ret = vdev->guest_features; |
352 |
break;
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353 |
case VIRTIO_PCI_QUEUE_PFN:
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ret = virtio_queue_get_addr(vdev, vdev->queue_sel) |
355 |
>> VIRTIO_PCI_QUEUE_ADDR_SHIFT; |
356 |
break;
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357 |
case VIRTIO_PCI_QUEUE_NUM:
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ret = virtio_queue_get_num(vdev, vdev->queue_sel); |
359 |
break;
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360 |
case VIRTIO_PCI_QUEUE_SEL:
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ret = vdev->queue_sel; |
362 |
break;
|
363 |
case VIRTIO_PCI_STATUS:
|
364 |
ret = vdev->status; |
365 |
break;
|
366 |
case VIRTIO_PCI_ISR:
|
367 |
/* reading from the ISR also clears it. */
|
368 |
ret = vdev->isr; |
369 |
vdev->isr = 0;
|
370 |
qemu_set_irq(proxy->pci_dev.irq[0], 0); |
371 |
break;
|
372 |
case VIRTIO_MSI_CONFIG_VECTOR:
|
373 |
ret = vdev->config_vector; |
374 |
break;
|
375 |
case VIRTIO_MSI_QUEUE_VECTOR:
|
376 |
ret = virtio_queue_vector(vdev, vdev->queue_sel); |
377 |
break;
|
378 |
default:
|
379 |
break;
|
380 |
} |
381 |
|
382 |
return ret;
|
383 |
} |
384 |
|
385 |
static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr, |
386 |
unsigned size)
|
387 |
{ |
388 |
VirtIOPCIProxy *proxy = opaque; |
389 |
uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
390 |
uint64_t val = 0;
|
391 |
if (addr < config) {
|
392 |
return virtio_ioport_read(proxy, addr);
|
393 |
} |
394 |
addr -= config; |
395 |
|
396 |
switch (size) {
|
397 |
case 1: |
398 |
val = virtio_config_readb(proxy->vdev, addr); |
399 |
break;
|
400 |
case 2: |
401 |
val = virtio_config_readw(proxy->vdev, addr); |
402 |
if (virtio_is_big_endian()) {
|
403 |
val = bswap16(val); |
404 |
} |
405 |
break;
|
406 |
case 4: |
407 |
val = virtio_config_readl(proxy->vdev, addr); |
408 |
if (virtio_is_big_endian()) {
|
409 |
val = bswap32(val); |
410 |
} |
411 |
break;
|
412 |
} |
413 |
return val;
|
414 |
} |
415 |
|
416 |
static void virtio_pci_config_write(void *opaque, hwaddr addr, |
417 |
uint64_t val, unsigned size)
|
418 |
{ |
419 |
VirtIOPCIProxy *proxy = opaque; |
420 |
uint32_t config = VIRTIO_PCI_CONFIG(&proxy->pci_dev); |
421 |
if (addr < config) {
|
422 |
virtio_ioport_write(proxy, addr, val); |
423 |
return;
|
424 |
} |
425 |
addr -= config; |
426 |
/*
|
427 |
* Virtio-PCI is odd. Ioports are LE but config space is target native
|
428 |
* endian.
|
429 |
*/
|
430 |
switch (size) {
|
431 |
case 1: |
432 |
virtio_config_writeb(proxy->vdev, addr, val); |
433 |
break;
|
434 |
case 2: |
435 |
if (virtio_is_big_endian()) {
|
436 |
val = bswap16(val); |
437 |
} |
438 |
virtio_config_writew(proxy->vdev, addr, val); |
439 |
break;
|
440 |
case 4: |
441 |
if (virtio_is_big_endian()) {
|
442 |
val = bswap32(val); |
443 |
} |
444 |
virtio_config_writel(proxy->vdev, addr, val); |
445 |
break;
|
446 |
} |
447 |
} |
448 |
|
449 |
static const MemoryRegionOps virtio_pci_config_ops = { |
450 |
.read = virtio_pci_config_read, |
451 |
.write = virtio_pci_config_write, |
452 |
.impl = { |
453 |
.min_access_size = 1,
|
454 |
.max_access_size = 4,
|
455 |
}, |
456 |
.endianness = DEVICE_LITTLE_ENDIAN, |
457 |
}; |
458 |
|
459 |
static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, |
460 |
uint32_t val, int len)
|
461 |
{ |
462 |
VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev); |
463 |
|
464 |
pci_default_write_config(pci_dev, address, val, len); |
465 |
|
466 |
if (range_covers_byte(address, len, PCI_COMMAND) &&
|
467 |
!(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER) && |
468 |
!(proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG)) { |
469 |
virtio_pci_stop_ioeventfd(proxy); |
470 |
virtio_set_status(proxy->vdev, |
471 |
proxy->vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK); |
472 |
} |
473 |
} |
474 |
|
475 |
static unsigned virtio_pci_get_features(DeviceState *d) |
476 |
{ |
477 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
478 |
return proxy->host_features;
|
479 |
} |
480 |
|
481 |
static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy, |
482 |
unsigned int queue_no, |
483 |
unsigned int vector, |
484 |
MSIMessage msg) |
485 |
{ |
486 |
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
487 |
int ret;
|
488 |
|
489 |
if (irqfd->users == 0) { |
490 |
ret = kvm_irqchip_add_msi_route(kvm_state, msg); |
491 |
if (ret < 0) { |
492 |
return ret;
|
493 |
} |
494 |
irqfd->virq = ret; |
495 |
} |
496 |
irqfd->users++; |
497 |
return 0; |
498 |
} |
499 |
|
500 |
static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy, |
501 |
unsigned int vector) |
502 |
{ |
503 |
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
504 |
if (--irqfd->users == 0) { |
505 |
kvm_irqchip_release_virq(kvm_state, irqfd->virq); |
506 |
} |
507 |
} |
508 |
|
509 |
static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy, |
510 |
unsigned int queue_no, |
511 |
unsigned int vector) |
512 |
{ |
513 |
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
514 |
VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); |
515 |
EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
516 |
int ret;
|
517 |
ret = kvm_irqchip_add_irqfd_notifier(kvm_state, n, irqfd->virq); |
518 |
return ret;
|
519 |
} |
520 |
|
521 |
static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy, |
522 |
unsigned int queue_no, |
523 |
unsigned int vector) |
524 |
{ |
525 |
VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); |
526 |
EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
527 |
VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector]; |
528 |
int ret;
|
529 |
|
530 |
ret = kvm_irqchip_remove_irqfd_notifier(kvm_state, n, irqfd->virq); |
531 |
assert(ret == 0);
|
532 |
} |
533 |
|
534 |
static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs) |
535 |
{ |
536 |
PCIDevice *dev = &proxy->pci_dev; |
537 |
VirtIODevice *vdev = proxy->vdev; |
538 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
539 |
unsigned int vector; |
540 |
int ret, queue_no;
|
541 |
MSIMessage msg; |
542 |
|
543 |
for (queue_no = 0; queue_no < nvqs; queue_no++) { |
544 |
if (!virtio_queue_get_num(vdev, queue_no)) {
|
545 |
break;
|
546 |
} |
547 |
vector = virtio_queue_vector(vdev, queue_no); |
548 |
if (vector >= msix_nr_vectors_allocated(dev)) {
|
549 |
continue;
|
550 |
} |
551 |
msg = msix_get_message(dev, vector); |
552 |
ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg); |
553 |
if (ret < 0) { |
554 |
goto undo;
|
555 |
} |
556 |
/* If guest supports masking, set up irqfd now.
|
557 |
* Otherwise, delay until unmasked in the frontend.
|
558 |
*/
|
559 |
if (k->guest_notifier_mask) {
|
560 |
ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); |
561 |
if (ret < 0) { |
562 |
kvm_virtio_pci_vq_vector_release(proxy, vector); |
563 |
goto undo;
|
564 |
} |
565 |
} |
566 |
} |
567 |
return 0; |
568 |
|
569 |
undo:
|
570 |
while (--queue_no >= 0) { |
571 |
vector = virtio_queue_vector(vdev, queue_no); |
572 |
if (vector >= msix_nr_vectors_allocated(dev)) {
|
573 |
continue;
|
574 |
} |
575 |
if (k->guest_notifier_mask) {
|
576 |
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
577 |
} |
578 |
kvm_virtio_pci_vq_vector_release(proxy, vector); |
579 |
} |
580 |
return ret;
|
581 |
} |
582 |
|
583 |
static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs) |
584 |
{ |
585 |
PCIDevice *dev = &proxy->pci_dev; |
586 |
VirtIODevice *vdev = proxy->vdev; |
587 |
unsigned int vector; |
588 |
int queue_no;
|
589 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
590 |
|
591 |
for (queue_no = 0; queue_no < nvqs; queue_no++) { |
592 |
if (!virtio_queue_get_num(vdev, queue_no)) {
|
593 |
break;
|
594 |
} |
595 |
vector = virtio_queue_vector(vdev, queue_no); |
596 |
if (vector >= msix_nr_vectors_allocated(dev)) {
|
597 |
continue;
|
598 |
} |
599 |
/* If guest supports masking, clean up irqfd now.
|
600 |
* Otherwise, it was cleaned when masked in the frontend.
|
601 |
*/
|
602 |
if (k->guest_notifier_mask) {
|
603 |
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
604 |
} |
605 |
kvm_virtio_pci_vq_vector_release(proxy, vector); |
606 |
} |
607 |
} |
608 |
|
609 |
static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy, |
610 |
unsigned int queue_no, |
611 |
unsigned int vector, |
612 |
MSIMessage msg) |
613 |
{ |
614 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); |
615 |
VirtQueue *vq = virtio_get_queue(proxy->vdev, queue_no); |
616 |
EventNotifier *n = virtio_queue_get_guest_notifier(vq); |
617 |
VirtIOIRQFD *irqfd; |
618 |
int ret = 0; |
619 |
|
620 |
if (proxy->vector_irqfd) {
|
621 |
irqfd = &proxy->vector_irqfd[vector]; |
622 |
if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) {
|
623 |
ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg); |
624 |
if (ret < 0) { |
625 |
return ret;
|
626 |
} |
627 |
} |
628 |
} |
629 |
|
630 |
/* If guest supports masking, irqfd is already setup, unmask it.
|
631 |
* Otherwise, set it up now.
|
632 |
*/
|
633 |
if (k->guest_notifier_mask) {
|
634 |
k->guest_notifier_mask(proxy->vdev, queue_no, false);
|
635 |
/* Test after unmasking to avoid losing events. */
|
636 |
if (k->guest_notifier_pending &&
|
637 |
k->guest_notifier_pending(proxy->vdev, queue_no)) { |
638 |
event_notifier_set(n); |
639 |
} |
640 |
} else {
|
641 |
ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector); |
642 |
} |
643 |
return ret;
|
644 |
} |
645 |
|
646 |
static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy, |
647 |
unsigned int queue_no, |
648 |
unsigned int vector) |
649 |
{ |
650 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(proxy->vdev); |
651 |
|
652 |
/* If guest supports masking, keep irqfd but mask it.
|
653 |
* Otherwise, clean it up now.
|
654 |
*/
|
655 |
if (k->guest_notifier_mask) {
|
656 |
k->guest_notifier_mask(proxy->vdev, queue_no, true);
|
657 |
} else {
|
658 |
kvm_virtio_pci_irqfd_release(proxy, queue_no, vector); |
659 |
} |
660 |
} |
661 |
|
662 |
static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector, |
663 |
MSIMessage msg) |
664 |
{ |
665 |
VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); |
666 |
VirtIODevice *vdev = proxy->vdev; |
667 |
int ret, queue_no;
|
668 |
|
669 |
for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
670 |
if (!virtio_queue_get_num(vdev, queue_no)) {
|
671 |
break;
|
672 |
} |
673 |
if (virtio_queue_vector(vdev, queue_no) != vector) {
|
674 |
continue;
|
675 |
} |
676 |
ret = virtio_pci_vq_vector_unmask(proxy, queue_no, vector, msg); |
677 |
if (ret < 0) { |
678 |
goto undo;
|
679 |
} |
680 |
} |
681 |
return 0; |
682 |
|
683 |
undo:
|
684 |
while (--queue_no >= 0) { |
685 |
if (virtio_queue_vector(vdev, queue_no) != vector) {
|
686 |
continue;
|
687 |
} |
688 |
virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
689 |
} |
690 |
return ret;
|
691 |
} |
692 |
|
693 |
static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector) |
694 |
{ |
695 |
VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); |
696 |
VirtIODevice *vdev = proxy->vdev; |
697 |
int queue_no;
|
698 |
|
699 |
for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
700 |
if (!virtio_queue_get_num(vdev, queue_no)) {
|
701 |
break;
|
702 |
} |
703 |
if (virtio_queue_vector(vdev, queue_no) != vector) {
|
704 |
continue;
|
705 |
} |
706 |
virtio_pci_vq_vector_mask(proxy, queue_no, vector); |
707 |
} |
708 |
} |
709 |
|
710 |
static void virtio_pci_vector_poll(PCIDevice *dev, |
711 |
unsigned int vector_start, |
712 |
unsigned int vector_end) |
713 |
{ |
714 |
VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev); |
715 |
VirtIODevice *vdev = proxy->vdev; |
716 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
717 |
int queue_no;
|
718 |
unsigned int vector; |
719 |
EventNotifier *notifier; |
720 |
VirtQueue *vq; |
721 |
|
722 |
for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) { |
723 |
if (!virtio_queue_get_num(vdev, queue_no)) {
|
724 |
break;
|
725 |
} |
726 |
vector = virtio_queue_vector(vdev, queue_no); |
727 |
if (vector < vector_start || vector >= vector_end ||
|
728 |
!msix_is_masked(dev, vector)) { |
729 |
continue;
|
730 |
} |
731 |
vq = virtio_get_queue(vdev, queue_no); |
732 |
notifier = virtio_queue_get_guest_notifier(vq); |
733 |
if (k->guest_notifier_pending) {
|
734 |
if (k->guest_notifier_pending(vdev, queue_no)) {
|
735 |
msix_set_pending(dev, vector); |
736 |
} |
737 |
} else if (event_notifier_test_and_clear(notifier)) { |
738 |
msix_set_pending(dev, vector); |
739 |
} |
740 |
} |
741 |
} |
742 |
|
743 |
static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign, |
744 |
bool with_irqfd)
|
745 |
{ |
746 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
747 |
VirtQueue *vq = virtio_get_queue(proxy->vdev, n); |
748 |
EventNotifier *notifier = virtio_queue_get_guest_notifier(vq); |
749 |
|
750 |
if (assign) {
|
751 |
int r = event_notifier_init(notifier, 0); |
752 |
if (r < 0) { |
753 |
return r;
|
754 |
} |
755 |
virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
|
756 |
} else {
|
757 |
virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
|
758 |
event_notifier_cleanup(notifier); |
759 |
} |
760 |
|
761 |
return 0; |
762 |
} |
763 |
|
764 |
static bool virtio_pci_query_guest_notifiers(DeviceState *d) |
765 |
{ |
766 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
767 |
return msix_enabled(&proxy->pci_dev);
|
768 |
} |
769 |
|
770 |
static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign) |
771 |
{ |
772 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
773 |
VirtIODevice *vdev = proxy->vdev; |
774 |
VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev); |
775 |
int r, n;
|
776 |
bool with_irqfd = msix_enabled(&proxy->pci_dev) &&
|
777 |
kvm_msi_via_irqfd_enabled(); |
778 |
|
779 |
nvqs = MIN(nvqs, VIRTIO_PCI_QUEUE_MAX); |
780 |
|
781 |
/* When deassigning, pass a consistent nvqs value
|
782 |
* to avoid leaking notifiers.
|
783 |
*/
|
784 |
assert(assign || nvqs == proxy->nvqs_with_notifiers); |
785 |
|
786 |
proxy->nvqs_with_notifiers = nvqs; |
787 |
|
788 |
/* Must unset vector notifier while guest notifier is still assigned */
|
789 |
if ((proxy->vector_irqfd || k->guest_notifier_mask) && !assign) {
|
790 |
msix_unset_vector_notifiers(&proxy->pci_dev); |
791 |
if (proxy->vector_irqfd) {
|
792 |
kvm_virtio_pci_vector_release(proxy, nvqs); |
793 |
g_free(proxy->vector_irqfd); |
794 |
proxy->vector_irqfd = NULL;
|
795 |
} |
796 |
} |
797 |
|
798 |
for (n = 0; n < nvqs; n++) { |
799 |
if (!virtio_queue_get_num(vdev, n)) {
|
800 |
break;
|
801 |
} |
802 |
|
803 |
r = virtio_pci_set_guest_notifier(d, n, assign, |
804 |
kvm_msi_via_irqfd_enabled()); |
805 |
if (r < 0) { |
806 |
goto assign_error;
|
807 |
} |
808 |
} |
809 |
|
810 |
/* Must set vector notifier after guest notifier has been assigned */
|
811 |
if ((with_irqfd || k->guest_notifier_mask) && assign) {
|
812 |
if (with_irqfd) {
|
813 |
proxy->vector_irqfd = |
814 |
g_malloc0(sizeof(*proxy->vector_irqfd) *
|
815 |
msix_nr_vectors_allocated(&proxy->pci_dev)); |
816 |
r = kvm_virtio_pci_vector_use(proxy, nvqs); |
817 |
if (r < 0) { |
818 |
goto assign_error;
|
819 |
} |
820 |
} |
821 |
r = msix_set_vector_notifiers(&proxy->pci_dev, |
822 |
virtio_pci_vector_unmask, |
823 |
virtio_pci_vector_mask, |
824 |
virtio_pci_vector_poll); |
825 |
if (r < 0) { |
826 |
goto notifiers_error;
|
827 |
} |
828 |
} |
829 |
|
830 |
return 0; |
831 |
|
832 |
notifiers_error:
|
833 |
if (with_irqfd) {
|
834 |
assert(assign); |
835 |
kvm_virtio_pci_vector_release(proxy, nvqs); |
836 |
} |
837 |
|
838 |
assign_error:
|
839 |
/* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */
|
840 |
assert(assign); |
841 |
while (--n >= 0) { |
842 |
virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd); |
843 |
} |
844 |
return r;
|
845 |
} |
846 |
|
847 |
static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign) |
848 |
{ |
849 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
850 |
|
851 |
/* Stop using ioeventfd for virtqueue kick if the device starts using host
|
852 |
* notifiers. This makes it easy to avoid stepping on each others' toes.
|
853 |
*/
|
854 |
proxy->ioeventfd_disabled = assign; |
855 |
if (assign) {
|
856 |
virtio_pci_stop_ioeventfd(proxy); |
857 |
} |
858 |
/* We don't need to start here: it's not needed because backend
|
859 |
* currently only stops on status change away from ok,
|
860 |
* reset, vmstop and such. If we do add code to start here,
|
861 |
* need to check vmstate, device state etc. */
|
862 |
return virtio_pci_set_host_notifier_internal(proxy, n, assign, false); |
863 |
} |
864 |
|
865 |
static void virtio_pci_vmstate_change(DeviceState *d, bool running) |
866 |
{ |
867 |
VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d); |
868 |
|
869 |
if (running) {
|
870 |
/* Try to find out if the guest has bus master disabled, but is
|
871 |
in ready state. Then we have a buggy guest OS. */
|
872 |
if ((proxy->vdev->status & VIRTIO_CONFIG_S_DRIVER_OK) &&
|
873 |
!(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { |
874 |
proxy->flags |= VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
875 |
} |
876 |
virtio_pci_start_ioeventfd(proxy); |
877 |
} else {
|
878 |
virtio_pci_stop_ioeventfd(proxy); |
879 |
} |
880 |
} |
881 |
|
882 |
#ifdef CONFIG_VIRTFS
|
883 |
static int virtio_9p_init_pci(VirtIOPCIProxy *vpci_dev) |
884 |
{ |
885 |
V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev); |
886 |
DeviceState *vdev = DEVICE(&dev->vdev); |
887 |
|
888 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
889 |
if (qdev_init(vdev) < 0) { |
890 |
return -1; |
891 |
} |
892 |
return 0; |
893 |
} |
894 |
|
895 |
static Property virtio_9p_pci_properties[] = {
|
896 |
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
|
897 |
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
|
898 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
899 |
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), |
900 |
DEFINE_VIRTIO_9P_PROPERTIES(V9fsPCIState, vdev.fsconf), |
901 |
DEFINE_PROP_END_OF_LIST(), |
902 |
}; |
903 |
|
904 |
static void virtio_9p_pci_class_init(ObjectClass *klass, void *data) |
905 |
{ |
906 |
DeviceClass *dc = DEVICE_CLASS(klass); |
907 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
908 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
909 |
|
910 |
k->init = virtio_9p_init_pci; |
911 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
912 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P; |
913 |
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
914 |
pcidev_k->class_id = 0x2;
|
915 |
dc->props = virtio_9p_pci_properties; |
916 |
} |
917 |
|
918 |
static void virtio_9p_pci_instance_init(Object *obj) |
919 |
{ |
920 |
V9fsPCIState *dev = VIRTIO_9P_PCI(obj); |
921 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_9P); |
922 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
923 |
} |
924 |
|
925 |
static const TypeInfo virtio_9p_pci_info = { |
926 |
.name = TYPE_VIRTIO_9P_PCI, |
927 |
.parent = TYPE_VIRTIO_PCI, |
928 |
.instance_size = sizeof(V9fsPCIState),
|
929 |
.instance_init = virtio_9p_pci_instance_init, |
930 |
.class_init = virtio_9p_pci_class_init, |
931 |
}; |
932 |
#endif /* CONFIG_VIRTFS */ |
933 |
|
934 |
/*
|
935 |
* virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
|
936 |
*/
|
937 |
|
938 |
/* This is called by virtio-bus just after the device is plugged. */
|
939 |
static void virtio_pci_device_plugged(DeviceState *d) |
940 |
{ |
941 |
VirtIOPCIProxy *proxy = VIRTIO_PCI(d); |
942 |
VirtioBusState *bus = &proxy->bus; |
943 |
uint8_t *config; |
944 |
uint32_t size; |
945 |
|
946 |
proxy->vdev = bus->vdev; |
947 |
|
948 |
config = proxy->pci_dev.config; |
949 |
if (proxy->class_code) {
|
950 |
pci_config_set_class(config, proxy->class_code); |
951 |
} |
952 |
pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID, |
953 |
pci_get_word(config + PCI_VENDOR_ID)); |
954 |
pci_set_word(config + PCI_SUBSYSTEM_ID, virtio_bus_get_vdev_id(bus)); |
955 |
config[PCI_INTERRUPT_PIN] = 1;
|
956 |
|
957 |
if (proxy->nvectors &&
|
958 |
msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, 1)) {
|
959 |
proxy->nvectors = 0;
|
960 |
} |
961 |
|
962 |
proxy->pci_dev.config_write = virtio_write_config; |
963 |
|
964 |
size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev) |
965 |
+ virtio_bus_get_vdev_config_len(bus); |
966 |
if (size & (size - 1)) { |
967 |
size = 1 << qemu_fls(size);
|
968 |
} |
969 |
|
970 |
memory_region_init_io(&proxy->bar, &virtio_pci_config_ops, proxy, |
971 |
"virtio-pci", size);
|
972 |
pci_register_bar(&proxy->pci_dev, 0, PCI_BASE_ADDRESS_SPACE_IO,
|
973 |
&proxy->bar); |
974 |
|
975 |
if (!kvm_has_many_ioeventfds()) {
|
976 |
proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD; |
977 |
} |
978 |
|
979 |
proxy->host_features |= 0x1 << VIRTIO_F_NOTIFY_ON_EMPTY;
|
980 |
proxy->host_features |= 0x1 << VIRTIO_F_BAD_FEATURE;
|
981 |
proxy->host_features = virtio_bus_get_vdev_features(bus, |
982 |
proxy->host_features); |
983 |
} |
984 |
|
985 |
static int virtio_pci_init(PCIDevice *pci_dev) |
986 |
{ |
987 |
VirtIOPCIProxy *dev = VIRTIO_PCI(pci_dev); |
988 |
VirtioPCIClass *k = VIRTIO_PCI_GET_CLASS(pci_dev); |
989 |
virtio_pci_bus_new(&dev->bus, dev); |
990 |
if (k->init != NULL) { |
991 |
return k->init(dev);
|
992 |
} |
993 |
return 0; |
994 |
} |
995 |
|
996 |
static void virtio_pci_exit(PCIDevice *pci_dev) |
997 |
{ |
998 |
VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev); |
999 |
virtio_pci_stop_ioeventfd(proxy); |
1000 |
memory_region_destroy(&proxy->bar); |
1001 |
msix_uninit_exclusive_bar(pci_dev); |
1002 |
} |
1003 |
|
1004 |
static void virtio_pci_reset(DeviceState *qdev) |
1005 |
{ |
1006 |
VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev); |
1007 |
VirtioBusState *bus = VIRTIO_BUS(&proxy->bus); |
1008 |
virtio_pci_stop_ioeventfd(proxy); |
1009 |
virtio_bus_reset(bus); |
1010 |
msix_unuse_all_vectors(&proxy->pci_dev); |
1011 |
proxy->flags &= ~VIRTIO_PCI_FLAG_BUS_MASTER_BUG; |
1012 |
} |
1013 |
|
1014 |
static void virtio_pci_class_init(ObjectClass *klass, void *data) |
1015 |
{ |
1016 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1017 |
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1018 |
|
1019 |
k->init = virtio_pci_init; |
1020 |
k->exit = virtio_pci_exit; |
1021 |
k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1022 |
k->revision = VIRTIO_PCI_ABI_VERSION; |
1023 |
k->class_id = PCI_CLASS_OTHERS; |
1024 |
dc->reset = virtio_pci_reset; |
1025 |
} |
1026 |
|
1027 |
static const TypeInfo virtio_pci_info = { |
1028 |
.name = TYPE_VIRTIO_PCI, |
1029 |
.parent = TYPE_PCI_DEVICE, |
1030 |
.instance_size = sizeof(VirtIOPCIProxy),
|
1031 |
.class_init = virtio_pci_class_init, |
1032 |
.class_size = sizeof(VirtioPCIClass),
|
1033 |
.abstract = true,
|
1034 |
}; |
1035 |
|
1036 |
/* virtio-blk-pci */
|
1037 |
|
1038 |
static Property virtio_blk_pci_properties[] = {
|
1039 |
DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), |
1040 |
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
|
1041 |
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
|
1042 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
1043 |
#ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
|
1044 |
DEFINE_PROP_BIT("x-data-plane", VirtIOBlkPCI, blk.data_plane, 0, false), |
1045 |
#endif
|
1046 |
DEFINE_VIRTIO_BLK_FEATURES(VirtIOPCIProxy, host_features), |
1047 |
DEFINE_VIRTIO_BLK_PROPERTIES(VirtIOBlkPCI, blk), |
1048 |
DEFINE_PROP_END_OF_LIST(), |
1049 |
}; |
1050 |
|
1051 |
static int virtio_blk_pci_init(VirtIOPCIProxy *vpci_dev) |
1052 |
{ |
1053 |
VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); |
1054 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1055 |
virtio_blk_set_conf(vdev, &(dev->blk)); |
1056 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1057 |
if (qdev_init(vdev) < 0) { |
1058 |
return -1; |
1059 |
} |
1060 |
return 0; |
1061 |
} |
1062 |
|
1063 |
static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) |
1064 |
{ |
1065 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1066 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1067 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1068 |
|
1069 |
dc->props = virtio_blk_pci_properties; |
1070 |
k->init = virtio_blk_pci_init; |
1071 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1072 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; |
1073 |
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
1074 |
pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; |
1075 |
} |
1076 |
|
1077 |
static void virtio_blk_pci_instance_init(Object *obj) |
1078 |
{ |
1079 |
VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); |
1080 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BLK); |
1081 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1082 |
} |
1083 |
|
1084 |
static const TypeInfo virtio_blk_pci_info = { |
1085 |
.name = TYPE_VIRTIO_BLK_PCI, |
1086 |
.parent = TYPE_VIRTIO_PCI, |
1087 |
.instance_size = sizeof(VirtIOBlkPCI),
|
1088 |
.instance_init = virtio_blk_pci_instance_init, |
1089 |
.class_init = virtio_blk_pci_class_init, |
1090 |
}; |
1091 |
|
1092 |
/* virtio-scsi-pci */
|
1093 |
|
1094 |
static Property virtio_scsi_pci_properties[] = {
|
1095 |
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
|
1096 |
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
|
1097 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
|
1098 |
DEV_NVECTORS_UNSPECIFIED), |
1099 |
DEFINE_VIRTIO_SCSI_FEATURES(VirtIOPCIProxy, host_features), |
1100 |
DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSIPCI, vdev.parent_obj.conf), |
1101 |
DEFINE_PROP_END_OF_LIST(), |
1102 |
}; |
1103 |
|
1104 |
static int virtio_scsi_pci_init_pci(VirtIOPCIProxy *vpci_dev) |
1105 |
{ |
1106 |
VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev); |
1107 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1108 |
VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
1109 |
|
1110 |
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
|
1111 |
vpci_dev->nvectors = vs->conf.num_queues + 3;
|
1112 |
} |
1113 |
|
1114 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1115 |
if (qdev_init(vdev) < 0) { |
1116 |
return -1; |
1117 |
} |
1118 |
return 0; |
1119 |
} |
1120 |
|
1121 |
static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data) |
1122 |
{ |
1123 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1124 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1125 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1126 |
k->init = virtio_scsi_pci_init_pci; |
1127 |
dc->props = virtio_scsi_pci_properties; |
1128 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1129 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; |
1130 |
pcidev_k->revision = 0x00;
|
1131 |
pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; |
1132 |
} |
1133 |
|
1134 |
static void virtio_scsi_pci_instance_init(Object *obj) |
1135 |
{ |
1136 |
VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj); |
1137 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SCSI); |
1138 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1139 |
} |
1140 |
|
1141 |
static const TypeInfo virtio_scsi_pci_info = { |
1142 |
.name = TYPE_VIRTIO_SCSI_PCI, |
1143 |
.parent = TYPE_VIRTIO_PCI, |
1144 |
.instance_size = sizeof(VirtIOSCSIPCI),
|
1145 |
.instance_init = virtio_scsi_pci_instance_init, |
1146 |
.class_init = virtio_scsi_pci_class_init, |
1147 |
}; |
1148 |
|
1149 |
/* vhost-scsi-pci */
|
1150 |
|
1151 |
#ifdef CONFIG_VHOST_SCSI
|
1152 |
static Property vhost_scsi_pci_properties[] = {
|
1153 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
|
1154 |
DEV_NVECTORS_UNSPECIFIED), |
1155 |
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), |
1156 |
DEFINE_VHOST_SCSI_PROPERTIES(VHostSCSIPCI, vdev.parent_obj.conf), |
1157 |
DEFINE_PROP_END_OF_LIST(), |
1158 |
}; |
1159 |
|
1160 |
static int vhost_scsi_pci_init_pci(VirtIOPCIProxy *vpci_dev) |
1161 |
{ |
1162 |
VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev); |
1163 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1164 |
VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev); |
1165 |
|
1166 |
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
|
1167 |
vpci_dev->nvectors = vs->conf.num_queues + 3;
|
1168 |
} |
1169 |
|
1170 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1171 |
if (qdev_init(vdev) < 0) { |
1172 |
return -1; |
1173 |
} |
1174 |
return 0; |
1175 |
} |
1176 |
|
1177 |
static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data) |
1178 |
{ |
1179 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1180 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1181 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1182 |
k->init = vhost_scsi_pci_init_pci; |
1183 |
dc->props = vhost_scsi_pci_properties; |
1184 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1185 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI; |
1186 |
pcidev_k->revision = 0x00;
|
1187 |
pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; |
1188 |
} |
1189 |
|
1190 |
static void vhost_scsi_pci_instance_init(Object *obj) |
1191 |
{ |
1192 |
VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj); |
1193 |
object_initialize(OBJECT(&dev->vdev), TYPE_VHOST_SCSI); |
1194 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1195 |
} |
1196 |
|
1197 |
static const TypeInfo vhost_scsi_pci_info = { |
1198 |
.name = TYPE_VHOST_SCSI_PCI, |
1199 |
.parent = TYPE_VIRTIO_PCI, |
1200 |
.instance_size = sizeof(VHostSCSIPCI),
|
1201 |
.instance_init = vhost_scsi_pci_instance_init, |
1202 |
.class_init = vhost_scsi_pci_class_init, |
1203 |
}; |
1204 |
#endif
|
1205 |
|
1206 |
/* virtio-balloon-pci */
|
1207 |
|
1208 |
static void balloon_pci_stats_get_all(Object *obj, struct Visitor *v, |
1209 |
void *opaque, const char *name, |
1210 |
Error **errp) |
1211 |
{ |
1212 |
VirtIOBalloonPCI *dev = opaque; |
1213 |
object_property_get(OBJECT(&dev->vdev), v, "guest-stats", errp);
|
1214 |
} |
1215 |
|
1216 |
static void balloon_pci_stats_get_poll_interval(Object *obj, struct Visitor *v, |
1217 |
void *opaque, const char *name, |
1218 |
Error **errp) |
1219 |
{ |
1220 |
VirtIOBalloonPCI *dev = opaque; |
1221 |
object_property_get(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
|
1222 |
errp); |
1223 |
} |
1224 |
|
1225 |
static void balloon_pci_stats_set_poll_interval(Object *obj, struct Visitor *v, |
1226 |
void *opaque, const char *name, |
1227 |
Error **errp) |
1228 |
{ |
1229 |
VirtIOBalloonPCI *dev = opaque; |
1230 |
object_property_set(OBJECT(&dev->vdev), v, "guest-stats-polling-interval",
|
1231 |
errp); |
1232 |
} |
1233 |
|
1234 |
static Property virtio_balloon_pci_properties[] = {
|
1235 |
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), |
1236 |
DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), |
1237 |
DEFINE_PROP_END_OF_LIST(), |
1238 |
}; |
1239 |
|
1240 |
static int virtio_balloon_pci_init(VirtIOPCIProxy *vpci_dev) |
1241 |
{ |
1242 |
VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); |
1243 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1244 |
|
1245 |
if (vpci_dev->class_code != PCI_CLASS_OTHERS &&
|
1246 |
vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */
|
1247 |
vpci_dev->class_code = PCI_CLASS_OTHERS; |
1248 |
} |
1249 |
|
1250 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1251 |
if (qdev_init(vdev) < 0) { |
1252 |
return -1; |
1253 |
} |
1254 |
return 0; |
1255 |
} |
1256 |
|
1257 |
static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) |
1258 |
{ |
1259 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1260 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1261 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1262 |
k->init = virtio_balloon_pci_init; |
1263 |
dc->props = virtio_balloon_pci_properties; |
1264 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1265 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; |
1266 |
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
1267 |
pcidev_k->class_id = PCI_CLASS_OTHERS; |
1268 |
} |
1269 |
|
1270 |
static void virtio_balloon_pci_instance_init(Object *obj) |
1271 |
{ |
1272 |
VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); |
1273 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_BALLOON); |
1274 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1275 |
|
1276 |
object_property_add(obj, "guest-stats", "guest statistics", |
1277 |
balloon_pci_stats_get_all, NULL, NULL, dev, |
1278 |
NULL);
|
1279 |
|
1280 |
object_property_add(obj, "guest-stats-polling-interval", "int", |
1281 |
balloon_pci_stats_get_poll_interval, |
1282 |
balloon_pci_stats_set_poll_interval, |
1283 |
NULL, dev, NULL); |
1284 |
} |
1285 |
|
1286 |
static const TypeInfo virtio_balloon_pci_info = { |
1287 |
.name = TYPE_VIRTIO_BALLOON_PCI, |
1288 |
.parent = TYPE_VIRTIO_PCI, |
1289 |
.instance_size = sizeof(VirtIOBalloonPCI),
|
1290 |
.instance_init = virtio_balloon_pci_instance_init, |
1291 |
.class_init = virtio_balloon_pci_class_init, |
1292 |
}; |
1293 |
|
1294 |
/* virtio-serial-pci */
|
1295 |
|
1296 |
static int virtio_serial_pci_init(VirtIOPCIProxy *vpci_dev) |
1297 |
{ |
1298 |
VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev); |
1299 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1300 |
|
1301 |
if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
|
1302 |
vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
|
1303 |
vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */
|
1304 |
vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER; |
1305 |
} |
1306 |
|
1307 |
/* backwards-compatibility with machines that were created with
|
1308 |
DEV_NVECTORS_UNSPECIFIED */
|
1309 |
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
|
1310 |
vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1;
|
1311 |
} |
1312 |
|
1313 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1314 |
if (qdev_init(vdev) < 0) { |
1315 |
return -1; |
1316 |
} |
1317 |
return 0; |
1318 |
} |
1319 |
|
1320 |
static Property virtio_serial_pci_properties[] = {
|
1321 |
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
|
1322 |
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
|
1323 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), |
1324 |
DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0), |
1325 |
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), |
1326 |
DEFINE_VIRTIO_SERIAL_PROPERTIES(VirtIOSerialPCI, vdev.serial), |
1327 |
DEFINE_PROP_END_OF_LIST(), |
1328 |
}; |
1329 |
|
1330 |
static void virtio_serial_pci_class_init(ObjectClass *klass, void *data) |
1331 |
{ |
1332 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1333 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1334 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1335 |
k->init = virtio_serial_pci_init; |
1336 |
dc->props = virtio_serial_pci_properties; |
1337 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1338 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; |
1339 |
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
1340 |
pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; |
1341 |
} |
1342 |
|
1343 |
static void virtio_serial_pci_instance_init(Object *obj) |
1344 |
{ |
1345 |
VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj); |
1346 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_SERIAL); |
1347 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1348 |
} |
1349 |
|
1350 |
static const TypeInfo virtio_serial_pci_info = { |
1351 |
.name = TYPE_VIRTIO_SERIAL_PCI, |
1352 |
.parent = TYPE_VIRTIO_PCI, |
1353 |
.instance_size = sizeof(VirtIOSerialPCI),
|
1354 |
.instance_init = virtio_serial_pci_instance_init, |
1355 |
.class_init = virtio_serial_pci_class_init, |
1356 |
}; |
1357 |
|
1358 |
/* virtio-net-pci */
|
1359 |
|
1360 |
static Property virtio_net_properties[] = {
|
1361 |
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
|
1362 |
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
|
1363 |
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3), |
1364 |
DEFINE_VIRTIO_NET_FEATURES(VirtIOPCIProxy, host_features), |
1365 |
DEFINE_NIC_PROPERTIES(VirtIONetPCI, vdev.nic_conf), |
1366 |
DEFINE_VIRTIO_NET_PROPERTIES(VirtIONetPCI, vdev.net_conf), |
1367 |
DEFINE_PROP_END_OF_LIST(), |
1368 |
}; |
1369 |
|
1370 |
static int virtio_net_pci_init(VirtIOPCIProxy *vpci_dev) |
1371 |
{ |
1372 |
VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev); |
1373 |
DeviceState *vdev = DEVICE(&dev->vdev); |
1374 |
|
1375 |
virtio_net_set_config_size(&dev->vdev, vpci_dev->host_features); |
1376 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1377 |
if (qdev_init(vdev) < 0) { |
1378 |
return -1; |
1379 |
} |
1380 |
return 0; |
1381 |
} |
1382 |
|
1383 |
static void virtio_net_pci_class_init(ObjectClass *klass, void *data) |
1384 |
{ |
1385 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1386 |
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
1387 |
VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass); |
1388 |
|
1389 |
k->romfile = "efi-virtio.rom";
|
1390 |
k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1391 |
k->device_id = PCI_DEVICE_ID_VIRTIO_NET; |
1392 |
k->revision = VIRTIO_PCI_ABI_VERSION; |
1393 |
k->class_id = PCI_CLASS_NETWORK_ETHERNET; |
1394 |
dc->props = virtio_net_properties; |
1395 |
vpciklass->init = virtio_net_pci_init; |
1396 |
} |
1397 |
|
1398 |
static void virtio_net_pci_instance_init(Object *obj) |
1399 |
{ |
1400 |
VirtIONetPCI *dev = VIRTIO_NET_PCI(obj); |
1401 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_NET); |
1402 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1403 |
} |
1404 |
|
1405 |
static const TypeInfo virtio_net_pci_info = { |
1406 |
.name = TYPE_VIRTIO_NET_PCI, |
1407 |
.parent = TYPE_VIRTIO_PCI, |
1408 |
.instance_size = sizeof(VirtIONetPCI),
|
1409 |
.instance_init = virtio_net_pci_instance_init, |
1410 |
.class_init = virtio_net_pci_class_init, |
1411 |
}; |
1412 |
|
1413 |
/* virtio-rng-pci */
|
1414 |
|
1415 |
static Property virtio_rng_pci_properties[] = {
|
1416 |
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features), |
1417 |
DEFINE_VIRTIO_RNG_PROPERTIES(VirtIORngPCI, vdev.conf), |
1418 |
DEFINE_PROP_END_OF_LIST(), |
1419 |
}; |
1420 |
|
1421 |
static int virtio_rng_pci_init(VirtIOPCIProxy *vpci_dev) |
1422 |
{ |
1423 |
VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev); |
1424 |
DeviceState *vdev = DEVICE(&vrng->vdev); |
1425 |
|
1426 |
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); |
1427 |
if (qdev_init(vdev) < 0) { |
1428 |
return -1; |
1429 |
} |
1430 |
|
1431 |
object_property_set_link(OBJECT(vrng), |
1432 |
OBJECT(vrng->vdev.conf.default_backend), "rng",
|
1433 |
NULL);
|
1434 |
|
1435 |
return 0; |
1436 |
} |
1437 |
|
1438 |
static void virtio_rng_pci_class_init(ObjectClass *klass, void *data) |
1439 |
{ |
1440 |
DeviceClass *dc = DEVICE_CLASS(klass); |
1441 |
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); |
1442 |
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); |
1443 |
|
1444 |
k->init = virtio_rng_pci_init; |
1445 |
dc->props = virtio_rng_pci_properties; |
1446 |
|
1447 |
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; |
1448 |
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG; |
1449 |
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; |
1450 |
pcidev_k->class_id = PCI_CLASS_OTHERS; |
1451 |
} |
1452 |
|
1453 |
static void virtio_rng_initfn(Object *obj) |
1454 |
{ |
1455 |
VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj); |
1456 |
object_initialize(OBJECT(&dev->vdev), TYPE_VIRTIO_RNG); |
1457 |
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL); |
1458 |
object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
|
1459 |
(Object **)&dev->vdev.conf.rng, NULL);
|
1460 |
|
1461 |
} |
1462 |
|
1463 |
static const TypeInfo virtio_rng_pci_info = { |
1464 |
.name = TYPE_VIRTIO_RNG_PCI, |
1465 |
.parent = TYPE_VIRTIO_PCI, |
1466 |
.instance_size = sizeof(VirtIORngPCI),
|
1467 |
.instance_init = virtio_rng_initfn, |
1468 |
.class_init = virtio_rng_pci_class_init, |
1469 |
}; |
1470 |
|
1471 |
/* virtio-pci-bus */
|
1472 |
|
1473 |
static void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev) |
1474 |
{ |
1475 |
DeviceState *qdev = DEVICE(dev); |
1476 |
BusState *qbus; |
1477 |
char virtio_bus_name[] = "virtio-bus"; |
1478 |
|
1479 |
qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_PCI_BUS, qdev, |
1480 |
virtio_bus_name); |
1481 |
qbus = BUS(bus); |
1482 |
qbus->allow_hotplug = 1;
|
1483 |
} |
1484 |
|
1485 |
static void virtio_pci_bus_class_init(ObjectClass *klass, void *data) |
1486 |
{ |
1487 |
BusClass *bus_class = BUS_CLASS(klass); |
1488 |
VirtioBusClass *k = VIRTIO_BUS_CLASS(klass); |
1489 |
bus_class->max_dev = 1;
|
1490 |
k->notify = virtio_pci_notify; |
1491 |
k->save_config = virtio_pci_save_config; |
1492 |
k->load_config = virtio_pci_load_config; |
1493 |
k->save_queue = virtio_pci_save_queue; |
1494 |
k->load_queue = virtio_pci_load_queue; |
1495 |
k->get_features = virtio_pci_get_features; |
1496 |
k->query_guest_notifiers = virtio_pci_query_guest_notifiers; |
1497 |
k->set_host_notifier = virtio_pci_set_host_notifier; |
1498 |
k->set_guest_notifiers = virtio_pci_set_guest_notifiers; |
1499 |
k->vmstate_change = virtio_pci_vmstate_change; |
1500 |
k->device_plugged = virtio_pci_device_plugged; |
1501 |
} |
1502 |
|
1503 |
static const TypeInfo virtio_pci_bus_info = { |
1504 |
.name = TYPE_VIRTIO_PCI_BUS, |
1505 |
.parent = TYPE_VIRTIO_BUS, |
1506 |
.instance_size = sizeof(VirtioPCIBusState),
|
1507 |
.class_init = virtio_pci_bus_class_init, |
1508 |
}; |
1509 |
|
1510 |
static void virtio_pci_register_types(void) |
1511 |
{ |
1512 |
type_register_static(&virtio_rng_pci_info); |
1513 |
type_register_static(&virtio_pci_bus_info); |
1514 |
type_register_static(&virtio_pci_info); |
1515 |
#ifdef CONFIG_VIRTFS
|
1516 |
type_register_static(&virtio_9p_pci_info); |
1517 |
#endif
|
1518 |
type_register_static(&virtio_blk_pci_info); |
1519 |
type_register_static(&virtio_scsi_pci_info); |
1520 |
type_register_static(&virtio_balloon_pci_info); |
1521 |
type_register_static(&virtio_serial_pci_info); |
1522 |
type_register_static(&virtio_net_pci_info); |
1523 |
#ifdef CONFIG_VHOST_SCSI
|
1524 |
type_register_static(&vhost_scsi_pci_info); |
1525 |
#endif
|
1526 |
} |
1527 |
|
1528 |
type_init(virtio_pci_register_types) |