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-rw-r--r--qemu/hw/virtio/virtio-pci.c2534
1 files changed, 0 insertions, 2534 deletions
diff --git a/qemu/hw/virtio/virtio-pci.c b/qemu/hw/virtio/virtio-pci.c
deleted file mode 100644
index bfedbbf17..000000000
--- a/qemu/hw/virtio/virtio-pci.c
+++ /dev/null
@@ -1,2534 +0,0 @@
-/*
- * Virtio PCI Bindings
- *
- * Copyright IBM, Corp. 2007
- * Copyright (c) 2009 CodeSourcery
- *
- * Authors:
- * Anthony Liguori <aliguori@us.ibm.com>
- * Paul Brook <paul@codesourcery.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-
-#include "standard-headers/linux/virtio_pci.h"
-#include "hw/virtio/virtio.h"
-#include "hw/virtio/virtio-blk.h"
-#include "hw/virtio/virtio-net.h"
-#include "hw/virtio/virtio-serial.h"
-#include "hw/virtio/virtio-scsi.h"
-#include "hw/virtio/virtio-balloon.h"
-#include "hw/virtio/virtio-input.h"
-#include "hw/pci/pci.h"
-#include "qapi/error.h"
-#include "qemu/error-report.h"
-#include "hw/pci/msi.h"
-#include "hw/pci/msix.h"
-#include "hw/loader.h"
-#include "sysemu/kvm.h"
-#include "sysemu/block-backend.h"
-#include "virtio-pci.h"
-#include "qemu/range.h"
-#include "hw/virtio/virtio-bus.h"
-#include "qapi/visitor.h"
-
-#define VIRTIO_PCI_REGION_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_present(dev))
-
-#undef VIRTIO_PCI_CONFIG
-
-/* The remaining space is defined by each driver as the per-driver
- * configuration space */
-#define VIRTIO_PCI_CONFIG_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_enabled(dev))
-
-static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size,
- VirtIOPCIProxy *dev);
-static void virtio_pci_reset(DeviceState *qdev);
-
-/* virtio device */
-/* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */
-static inline VirtIOPCIProxy *to_virtio_pci_proxy(DeviceState *d)
-{
- return container_of(d, VirtIOPCIProxy, pci_dev.qdev);
-}
-
-/* DeviceState to VirtIOPCIProxy. Note: used on datapath,
- * be careful and test performance if you change this.
- */
-static inline VirtIOPCIProxy *to_virtio_pci_proxy_fast(DeviceState *d)
-{
- return container_of(d, VirtIOPCIProxy, pci_dev.qdev);
-}
-
-static void virtio_pci_notify(DeviceState *d, uint16_t vector)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy_fast(d);
-
- if (msix_enabled(&proxy->pci_dev))
- msix_notify(&proxy->pci_dev, vector);
- else {
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- pci_set_irq(&proxy->pci_dev, vdev->isr & 1);
- }
-}
-
-static void virtio_pci_save_config(DeviceState *d, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- pci_device_save(&proxy->pci_dev, f);
- msix_save(&proxy->pci_dev, f);
- if (msix_present(&proxy->pci_dev))
- qemu_put_be16(f, vdev->config_vector);
-}
-
-static void virtio_pci_load_modern_queue_state(VirtIOPCIQueue *vq,
- QEMUFile *f)
-{
- vq->num = qemu_get_be16(f);
- vq->enabled = qemu_get_be16(f);
- vq->desc[0] = qemu_get_be32(f);
- vq->desc[1] = qemu_get_be32(f);
- vq->avail[0] = qemu_get_be32(f);
- vq->avail[1] = qemu_get_be32(f);
- vq->used[0] = qemu_get_be32(f);
- vq->used[1] = qemu_get_be32(f);
-}
-
-static bool virtio_pci_has_extra_state(DeviceState *d)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-
- return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA;
-}
-
-static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size)
-{
- VirtIOPCIProxy *proxy = pv;
- int i;
-
- proxy->dfselect = qemu_get_be32(f);
- proxy->gfselect = qemu_get_be32(f);
- proxy->guest_features[0] = qemu_get_be32(f);
- proxy->guest_features[1] = qemu_get_be32(f);
- for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
- virtio_pci_load_modern_queue_state(&proxy->vqs[i], f);
- }
-
- return 0;
-}
-
-static void virtio_pci_save_modern_queue_state(VirtIOPCIQueue *vq,
- QEMUFile *f)
-{
- qemu_put_be16(f, vq->num);
- qemu_put_be16(f, vq->enabled);
- qemu_put_be32(f, vq->desc[0]);
- qemu_put_be32(f, vq->desc[1]);
- qemu_put_be32(f, vq->avail[0]);
- qemu_put_be32(f, vq->avail[1]);
- qemu_put_be32(f, vq->used[0]);
- qemu_put_be32(f, vq->used[1]);
-}
-
-static void put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size)
-{
- VirtIOPCIProxy *proxy = pv;
- int i;
-
- qemu_put_be32(f, proxy->dfselect);
- qemu_put_be32(f, proxy->gfselect);
- qemu_put_be32(f, proxy->guest_features[0]);
- qemu_put_be32(f, proxy->guest_features[1]);
- for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
- virtio_pci_save_modern_queue_state(&proxy->vqs[i], f);
- }
-}
-
-static const VMStateInfo vmstate_info_virtio_pci_modern_state = {
- .name = "virtqueue_state",
- .get = get_virtio_pci_modern_state,
- .put = put_virtio_pci_modern_state,
-};
-
-static bool virtio_pci_modern_state_needed(void *opaque)
-{
- VirtIOPCIProxy *proxy = opaque;
-
- return !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN);
-}
-
-static const VMStateDescription vmstate_virtio_pci_modern_state = {
- .name = "virtio_pci/modern_state",
- .version_id = 1,
- .minimum_version_id = 1,
- .needed = &virtio_pci_modern_state_needed,
- .fields = (VMStateField[]) {
- {
- .name = "modern_state",
- .version_id = 0,
- .field_exists = NULL,
- .size = 0,
- .info = &vmstate_info_virtio_pci_modern_state,
- .flags = VMS_SINGLE,
- .offset = 0,
- },
- VMSTATE_END_OF_LIST()
- }
-};
-
-static const VMStateDescription vmstate_virtio_pci = {
- .name = "virtio_pci",
- .version_id = 1,
- .minimum_version_id = 1,
- .minimum_version_id_old = 1,
- .fields = (VMStateField[]) {
- VMSTATE_END_OF_LIST()
- },
- .subsections = (const VMStateDescription*[]) {
- &vmstate_virtio_pci_modern_state,
- NULL
- }
-};
-
-static void virtio_pci_save_extra_state(DeviceState *d, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-
- vmstate_save_state(f, &vmstate_virtio_pci, proxy, NULL);
-}
-
-static int virtio_pci_load_extra_state(DeviceState *d, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-
- return vmstate_load_state(f, &vmstate_virtio_pci, proxy, 1);
-}
-
-static void virtio_pci_save_queue(DeviceState *d, int n, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- if (msix_present(&proxy->pci_dev))
- qemu_put_be16(f, virtio_queue_vector(vdev, n));
-}
-
-static int virtio_pci_load_config(DeviceState *d, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- int ret;
- ret = pci_device_load(&proxy->pci_dev, f);
- if (ret) {
- return ret;
- }
- msix_unuse_all_vectors(&proxy->pci_dev);
- msix_load(&proxy->pci_dev, f);
- if (msix_present(&proxy->pci_dev)) {
- qemu_get_be16s(f, &vdev->config_vector);
- } else {
- vdev->config_vector = VIRTIO_NO_VECTOR;
- }
- if (vdev->config_vector != VIRTIO_NO_VECTOR) {
- return msix_vector_use(&proxy->pci_dev, vdev->config_vector);
- }
- return 0;
-}
-
-static int virtio_pci_load_queue(DeviceState *d, int n, QEMUFile *f)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- uint16_t vector;
- if (msix_present(&proxy->pci_dev)) {
- qemu_get_be16s(f, &vector);
- } else {
- vector = VIRTIO_NO_VECTOR;
- }
- virtio_queue_set_vector(vdev, n, vector);
- if (vector != VIRTIO_NO_VECTOR) {
- return msix_vector_use(&proxy->pci_dev, vector);
- }
-
- return 0;
-}
-
-#define QEMU_VIRTIO_PCI_QUEUE_MEM_MULT 0x1000
-
-static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy *proxy,
- int n, bool assign, bool set_handler)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_get_queue(vdev, n);
- EventNotifier *notifier = virtio_queue_get_host_notifier(vq);
- bool legacy = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_LEGACY);
- bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN);
- bool fast_mmio = kvm_ioeventfd_any_length_enabled();
- bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
- MemoryRegion *modern_mr = &proxy->notify.mr;
- MemoryRegion *modern_notify_mr = &proxy->notify_pio.mr;
- MemoryRegion *legacy_mr = &proxy->bar;
- hwaddr modern_addr = QEMU_VIRTIO_PCI_QUEUE_MEM_MULT *
- virtio_get_queue_index(vq);
- hwaddr legacy_addr = VIRTIO_PCI_QUEUE_NOTIFY;
- int r = 0;
-
- if (assign) {
- r = event_notifier_init(notifier, 1);
- if (r < 0) {
- error_report("%s: unable to init event notifier: %d",
- __func__, r);
- return r;
- }
- virtio_queue_set_host_notifier_fd_handler(vq, true, set_handler);
- if (modern) {
- if (fast_mmio) {
- memory_region_add_eventfd(modern_mr, modern_addr, 0,
- false, n, notifier);
- } else {
- memory_region_add_eventfd(modern_mr, modern_addr, 2,
- false, n, notifier);
- }
- if (modern_pio) {
- memory_region_add_eventfd(modern_notify_mr, 0, 2,
- true, n, notifier);
- }
- }
- if (legacy) {
- memory_region_add_eventfd(legacy_mr, legacy_addr, 2,
- true, n, notifier);
- }
- } else {
- if (modern) {
- if (fast_mmio) {
- memory_region_del_eventfd(modern_mr, modern_addr, 0,
- false, n, notifier);
- } else {
- memory_region_del_eventfd(modern_mr, modern_addr, 2,
- false, n, notifier);
- }
- if (modern_pio) {
- memory_region_del_eventfd(modern_notify_mr, 0, 2,
- true, n, notifier);
- }
- }
- if (legacy) {
- memory_region_del_eventfd(legacy_mr, legacy_addr, 2,
- true, n, notifier);
- }
- virtio_queue_set_host_notifier_fd_handler(vq, false, false);
- event_notifier_cleanup(notifier);
- }
- return r;
-}
-
-static void virtio_pci_start_ioeventfd(VirtIOPCIProxy *proxy)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- int n, r;
-
- if (!(proxy->flags & VIRTIO_PCI_FLAG_USE_IOEVENTFD) ||
- proxy->ioeventfd_disabled ||
- proxy->ioeventfd_started) {
- return;
- }
-
- for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
-
- r = virtio_pci_set_host_notifier_internal(proxy, n, true, true);
- if (r < 0) {
- goto assign_error;
- }
- }
- proxy->ioeventfd_started = true;
- return;
-
-assign_error:
- while (--n >= 0) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
-
- r = virtio_pci_set_host_notifier_internal(proxy, n, false, false);
- assert(r >= 0);
- }
- proxy->ioeventfd_started = false;
- error_report("%s: failed. Fallback to a userspace (slower).", __func__);
-}
-
-static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy *proxy)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- int r;
- int n;
-
- if (!proxy->ioeventfd_started) {
- return;
- }
-
- for (n = 0; n < VIRTIO_QUEUE_MAX; n++) {
- if (!virtio_queue_get_num(vdev, n)) {
- continue;
- }
-
- r = virtio_pci_set_host_notifier_internal(proxy, n, false, false);
- assert(r >= 0);
- }
- proxy->ioeventfd_started = false;
-}
-
-static void virtio_ioport_write(void *opaque, uint32_t addr, uint32_t val)
-{
- VirtIOPCIProxy *proxy = opaque;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- hwaddr pa;
-
- switch (addr) {
- case VIRTIO_PCI_GUEST_FEATURES:
- /* Guest does not negotiate properly? We have to assume nothing. */
- if (val & (1 << VIRTIO_F_BAD_FEATURE)) {
- val = virtio_bus_get_vdev_bad_features(&proxy->bus);
- }
- virtio_set_features(vdev, val);
- break;
- case VIRTIO_PCI_QUEUE_PFN:
- pa = (hwaddr)val << VIRTIO_PCI_QUEUE_ADDR_SHIFT;
- if (pa == 0) {
- virtio_pci_reset(DEVICE(proxy));
- }
- else
- virtio_queue_set_addr(vdev, vdev->queue_sel, pa);
- break;
- case VIRTIO_PCI_QUEUE_SEL:
- if (val < VIRTIO_QUEUE_MAX)
- vdev->queue_sel = val;
- break;
- case VIRTIO_PCI_QUEUE_NOTIFY:
- if (val < VIRTIO_QUEUE_MAX) {
- virtio_queue_notify(vdev, val);
- }
- break;
- case VIRTIO_PCI_STATUS:
- if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) {
- virtio_pci_stop_ioeventfd(proxy);
- }
-
- virtio_set_status(vdev, val & 0xFF);
-
- if (val & VIRTIO_CONFIG_S_DRIVER_OK) {
- virtio_pci_start_ioeventfd(proxy);
- }
-
- if (vdev->status == 0) {
- virtio_pci_reset(DEVICE(proxy));
- }
-
- /* Linux before 2.6.34 drives the device without enabling
- the PCI device bus master bit. Enable it automatically
- for the guest. This is a PCI spec violation but so is
- initiating DMA with bus master bit clear. */
- if (val == (VIRTIO_CONFIG_S_ACKNOWLEDGE | VIRTIO_CONFIG_S_DRIVER)) {
- pci_default_write_config(&proxy->pci_dev, PCI_COMMAND,
- proxy->pci_dev.config[PCI_COMMAND] |
- PCI_COMMAND_MASTER, 1);
- }
- break;
- case VIRTIO_MSI_CONFIG_VECTOR:
- msix_vector_unuse(&proxy->pci_dev, vdev->config_vector);
- /* Make it possible for guest to discover an error took place. */
- if (msix_vector_use(&proxy->pci_dev, val) < 0)
- val = VIRTIO_NO_VECTOR;
- vdev->config_vector = val;
- break;
- case VIRTIO_MSI_QUEUE_VECTOR:
- msix_vector_unuse(&proxy->pci_dev,
- virtio_queue_vector(vdev, vdev->queue_sel));
- /* Make it possible for guest to discover an error took place. */
- if (msix_vector_use(&proxy->pci_dev, val) < 0)
- val = VIRTIO_NO_VECTOR;
- virtio_queue_set_vector(vdev, vdev->queue_sel, val);
- break;
- default:
- error_report("%s: unexpected address 0x%x value 0x%x",
- __func__, addr, val);
- break;
- }
-}
-
-static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- uint32_t ret = 0xFFFFFFFF;
-
- switch (addr) {
- case VIRTIO_PCI_HOST_FEATURES:
- ret = vdev->host_features;
- break;
- case VIRTIO_PCI_GUEST_FEATURES:
- ret = vdev->guest_features;
- break;
- case VIRTIO_PCI_QUEUE_PFN:
- ret = virtio_queue_get_addr(vdev, vdev->queue_sel)
- >> VIRTIO_PCI_QUEUE_ADDR_SHIFT;
- break;
- case VIRTIO_PCI_QUEUE_NUM:
- ret = virtio_queue_get_num(vdev, vdev->queue_sel);
- break;
- case VIRTIO_PCI_QUEUE_SEL:
- ret = vdev->queue_sel;
- break;
- case VIRTIO_PCI_STATUS:
- ret = vdev->status;
- break;
- case VIRTIO_PCI_ISR:
- /* reading from the ISR also clears it. */
- ret = vdev->isr;
- vdev->isr = 0;
- pci_irq_deassert(&proxy->pci_dev);
- break;
- case VIRTIO_MSI_CONFIG_VECTOR:
- ret = vdev->config_vector;
- break;
- case VIRTIO_MSI_QUEUE_VECTOR:
- ret = virtio_queue_vector(vdev, vdev->queue_sel);
- break;
- default:
- break;
- }
-
- return ret;
-}
-
-static uint64_t virtio_pci_config_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- VirtIOPCIProxy *proxy = opaque;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev);
- uint64_t val = 0;
- if (addr < config) {
- return virtio_ioport_read(proxy, addr);
- }
- addr -= config;
-
- switch (size) {
- case 1:
- val = virtio_config_readb(vdev, addr);
- break;
- case 2:
- val = virtio_config_readw(vdev, addr);
- if (virtio_is_big_endian(vdev)) {
- val = bswap16(val);
- }
- break;
- case 4:
- val = virtio_config_readl(vdev, addr);
- if (virtio_is_big_endian(vdev)) {
- val = bswap32(val);
- }
- break;
- }
- return val;
-}
-
-static void virtio_pci_config_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- VirtIOPCIProxy *proxy = opaque;
- uint32_t config = VIRTIO_PCI_CONFIG_SIZE(&proxy->pci_dev);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- if (addr < config) {
- virtio_ioport_write(proxy, addr, val);
- return;
- }
- addr -= config;
- /*
- * Virtio-PCI is odd. Ioports are LE but config space is target native
- * endian.
- */
- switch (size) {
- case 1:
- virtio_config_writeb(vdev, addr, val);
- break;
- case 2:
- if (virtio_is_big_endian(vdev)) {
- val = bswap16(val);
- }
- virtio_config_writew(vdev, addr, val);
- break;
- case 4:
- if (virtio_is_big_endian(vdev)) {
- val = bswap32(val);
- }
- virtio_config_writel(vdev, addr, val);
- break;
- }
-}
-
-static const MemoryRegionOps virtio_pci_config_ops = {
- .read = virtio_pci_config_read,
- .write = virtio_pci_config_write,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-/* Below are generic functions to do memcpy from/to an address space,
- * without byteswaps, with input validation.
- *
- * As regular address_space_* APIs all do some kind of byteswap at least for
- * some host/target combinations, we are forced to explicitly convert to a
- * known-endianness integer value.
- * It doesn't really matter which endian format to go through, so the code
- * below selects the endian that causes the least amount of work on the given
- * host.
- *
- * Note: host pointer must be aligned.
- */
-static
-void virtio_address_space_write(AddressSpace *as, hwaddr addr,
- const uint8_t *buf, int len)
-{
- uint32_t val;
-
- /* address_space_* APIs assume an aligned address.
- * As address is under guest control, handle illegal values.
- */
- addr &= ~(len - 1);
-
- /* Make sure caller aligned buf properly */
- assert(!(((uintptr_t)buf) & (len - 1)));
-
- switch (len) {
- case 1:
- val = pci_get_byte(buf);
- address_space_stb(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL);
- break;
- case 2:
- val = pci_get_word(buf);
- address_space_stw_le(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL);
- break;
- case 4:
- val = pci_get_long(buf);
- address_space_stl_le(as, addr, val, MEMTXATTRS_UNSPECIFIED, NULL);
- break;
- default:
- /* As length is under guest control, handle illegal values. */
- break;
- }
-}
-
-static void
-virtio_address_space_read(AddressSpace *as, hwaddr addr, uint8_t *buf, int len)
-{
- uint32_t val;
-
- /* address_space_* APIs assume an aligned address.
- * As address is under guest control, handle illegal values.
- */
- addr &= ~(len - 1);
-
- /* Make sure caller aligned buf properly */
- assert(!(((uintptr_t)buf) & (len - 1)));
-
- switch (len) {
- case 1:
- val = address_space_ldub(as, addr, MEMTXATTRS_UNSPECIFIED, NULL);
- pci_set_byte(buf, val);
- break;
- case 2:
- val = address_space_lduw_le(as, addr, MEMTXATTRS_UNSPECIFIED, NULL);
- pci_set_word(buf, val);
- break;
- case 4:
- val = address_space_ldl_le(as, addr, MEMTXATTRS_UNSPECIFIED, NULL);
- pci_set_long(buf, val);
- break;
- default:
- /* As length is under guest control, handle illegal values. */
- break;
- }
-}
-
-static void virtio_write_config(PCIDevice *pci_dev, uint32_t address,
- uint32_t val, int len)
-{
- VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- struct virtio_pci_cfg_cap *cfg;
-
- pci_default_write_config(pci_dev, address, val, len);
-
- if (range_covers_byte(address, len, PCI_COMMAND) &&
- !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) {
- virtio_pci_stop_ioeventfd(proxy);
- virtio_set_status(vdev, vdev->status & ~VIRTIO_CONFIG_S_DRIVER_OK);
- }
-
- if (proxy->config_cap &&
- ranges_overlap(address, len, proxy->config_cap + offsetof(struct virtio_pci_cfg_cap,
- pci_cfg_data),
- sizeof cfg->pci_cfg_data)) {
- uint32_t off;
- uint32_t len;
-
- cfg = (void *)(proxy->pci_dev.config + proxy->config_cap);
- off = le32_to_cpu(cfg->cap.offset);
- len = le32_to_cpu(cfg->cap.length);
-
- if (len == 1 || len == 2 || len == 4) {
- assert(len <= sizeof cfg->pci_cfg_data);
- virtio_address_space_write(&proxy->modern_as, off,
- cfg->pci_cfg_data, len);
- }
- }
-}
-
-static uint32_t virtio_read_config(PCIDevice *pci_dev,
- uint32_t address, int len)
-{
- VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
- struct virtio_pci_cfg_cap *cfg;
-
- if (proxy->config_cap &&
- ranges_overlap(address, len, proxy->config_cap + offsetof(struct virtio_pci_cfg_cap,
- pci_cfg_data),
- sizeof cfg->pci_cfg_data)) {
- uint32_t off;
- uint32_t len;
-
- cfg = (void *)(proxy->pci_dev.config + proxy->config_cap);
- off = le32_to_cpu(cfg->cap.offset);
- len = le32_to_cpu(cfg->cap.length);
-
- if (len == 1 || len == 2 || len == 4) {
- assert(len <= sizeof cfg->pci_cfg_data);
- virtio_address_space_read(&proxy->modern_as, off,
- cfg->pci_cfg_data, len);
- }
- }
-
- return pci_default_read_config(pci_dev, address, len);
-}
-
-static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
- unsigned int vector,
- MSIMessage msg)
-{
- VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
- int ret;
-
- if (irqfd->users == 0) {
- ret = kvm_irqchip_add_msi_route(kvm_state, msg, &proxy->pci_dev);
- if (ret < 0) {
- return ret;
- }
- irqfd->virq = ret;
- }
- irqfd->users++;
- return 0;
-}
-
-static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy *proxy,
- unsigned int vector)
-{
- VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
- if (--irqfd->users == 0) {
- kvm_irqchip_release_virq(kvm_state, irqfd->virq);
- }
-}
-
-static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
- unsigned int vector)
-{
- VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_get_queue(vdev, queue_no);
- EventNotifier *n = virtio_queue_get_guest_notifier(vq);
- int ret;
- ret = kvm_irqchip_add_irqfd_notifier_gsi(kvm_state, n, NULL, irqfd->virq);
- return ret;
-}
-
-static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
- unsigned int vector)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_get_queue(vdev, queue_no);
- EventNotifier *n = virtio_queue_get_guest_notifier(vq);
- VirtIOIRQFD *irqfd = &proxy->vector_irqfd[vector];
- int ret;
-
- ret = kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state, n, irqfd->virq);
- assert(ret == 0);
-}
-
-static int kvm_virtio_pci_vector_use(VirtIOPCIProxy *proxy, int nvqs)
-{
- PCIDevice *dev = &proxy->pci_dev;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- unsigned int vector;
- int ret, queue_no;
- MSIMessage msg;
-
- for (queue_no = 0; queue_no < nvqs; queue_no++) {
- if (!virtio_queue_get_num(vdev, queue_no)) {
- break;
- }
- vector = virtio_queue_vector(vdev, queue_no);
- if (vector >= msix_nr_vectors_allocated(dev)) {
- continue;
- }
- msg = msix_get_message(dev, vector);
- ret = kvm_virtio_pci_vq_vector_use(proxy, queue_no, vector, msg);
- if (ret < 0) {
- goto undo;
- }
- /* If guest supports masking, set up irqfd now.
- * Otherwise, delay until unmasked in the frontend.
- */
- if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector);
- if (ret < 0) {
- kvm_virtio_pci_vq_vector_release(proxy, vector);
- goto undo;
- }
- }
- }
- return 0;
-
-undo:
- while (--queue_no >= 0) {
- vector = virtio_queue_vector(vdev, queue_no);
- if (vector >= msix_nr_vectors_allocated(dev)) {
- continue;
- }
- if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
- }
- kvm_virtio_pci_vq_vector_release(proxy, vector);
- }
- return ret;
-}
-
-static void kvm_virtio_pci_vector_release(VirtIOPCIProxy *proxy, int nvqs)
-{
- PCIDevice *dev = &proxy->pci_dev;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- unsigned int vector;
- int queue_no;
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
-
- for (queue_no = 0; queue_no < nvqs; queue_no++) {
- if (!virtio_queue_get_num(vdev, queue_no)) {
- break;
- }
- vector = virtio_queue_vector(vdev, queue_no);
- if (vector >= msix_nr_vectors_allocated(dev)) {
- continue;
- }
- /* If guest supports masking, clean up irqfd now.
- * Otherwise, it was cleaned when masked in the frontend.
- */
- if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
- }
- kvm_virtio_pci_vq_vector_release(proxy, vector);
- }
-}
-
-static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
- unsigned int vector,
- MSIMessage msg)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- VirtQueue *vq = virtio_get_queue(vdev, queue_no);
- EventNotifier *n = virtio_queue_get_guest_notifier(vq);
- VirtIOIRQFD *irqfd;
- int ret = 0;
-
- if (proxy->vector_irqfd) {
- irqfd = &proxy->vector_irqfd[vector];
- if (irqfd->msg.data != msg.data || irqfd->msg.address != msg.address) {
- ret = kvm_irqchip_update_msi_route(kvm_state, irqfd->virq, msg,
- &proxy->pci_dev);
- if (ret < 0) {
- return ret;
- }
- }
- }
-
- /* If guest supports masking, irqfd is already setup, unmask it.
- * Otherwise, set it up now.
- */
- if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- k->guest_notifier_mask(vdev, queue_no, false);
- /* Test after unmasking to avoid losing events. */
- if (k->guest_notifier_pending &&
- k->guest_notifier_pending(vdev, queue_no)) {
- event_notifier_set(n);
- }
- } else {
- ret = kvm_virtio_pci_irqfd_use(proxy, queue_no, vector);
- }
- return ret;
-}
-
-static void virtio_pci_vq_vector_mask(VirtIOPCIProxy *proxy,
- unsigned int queue_no,
- unsigned int vector)
-{
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
-
- /* If guest supports masking, keep irqfd but mask it.
- * Otherwise, clean it up now.
- */
- if (vdev->use_guest_notifier_mask && k->guest_notifier_mask) {
- k->guest_notifier_mask(vdev, queue_no, true);
- } else {
- kvm_virtio_pci_irqfd_release(proxy, queue_no, vector);
- }
-}
-
-static int virtio_pci_vector_unmask(PCIDevice *dev, unsigned vector,
- MSIMessage msg)
-{
- VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_vector_first_queue(vdev, vector);
- int ret, index, unmasked = 0;
-
- while (vq) {
- index = virtio_get_queue_index(vq);
- if (!virtio_queue_get_num(vdev, index)) {
- break;
- }
- if (index < proxy->nvqs_with_notifiers) {
- ret = virtio_pci_vq_vector_unmask(proxy, index, vector, msg);
- if (ret < 0) {
- goto undo;
- }
- ++unmasked;
- }
- vq = virtio_vector_next_queue(vq);
- }
-
- return 0;
-
-undo:
- vq = virtio_vector_first_queue(vdev, vector);
- while (vq && unmasked >= 0) {
- index = virtio_get_queue_index(vq);
- if (index < proxy->nvqs_with_notifiers) {
- virtio_pci_vq_vector_mask(proxy, index, vector);
- --unmasked;
- }
- vq = virtio_vector_next_queue(vq);
- }
- return ret;
-}
-
-static void virtio_pci_vector_mask(PCIDevice *dev, unsigned vector)
-{
- VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtQueue *vq = virtio_vector_first_queue(vdev, vector);
- int index;
-
- while (vq) {
- index = virtio_get_queue_index(vq);
- if (!virtio_queue_get_num(vdev, index)) {
- break;
- }
- if (index < proxy->nvqs_with_notifiers) {
- virtio_pci_vq_vector_mask(proxy, index, vector);
- }
- vq = virtio_vector_next_queue(vq);
- }
-}
-
-static void virtio_pci_vector_poll(PCIDevice *dev,
- unsigned int vector_start,
- unsigned int vector_end)
-{
- VirtIOPCIProxy *proxy = container_of(dev, VirtIOPCIProxy, pci_dev);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- int queue_no;
- unsigned int vector;
- EventNotifier *notifier;
- VirtQueue *vq;
-
- for (queue_no = 0; queue_no < proxy->nvqs_with_notifiers; queue_no++) {
- if (!virtio_queue_get_num(vdev, queue_no)) {
- break;
- }
- vector = virtio_queue_vector(vdev, queue_no);
- if (vector < vector_start || vector >= vector_end ||
- !msix_is_masked(dev, vector)) {
- continue;
- }
- vq = virtio_get_queue(vdev, queue_no);
- notifier = virtio_queue_get_guest_notifier(vq);
- if (k->guest_notifier_pending) {
- if (k->guest_notifier_pending(vdev, queue_no)) {
- msix_set_pending(dev, vector);
- }
- } else if (event_notifier_test_and_clear(notifier)) {
- msix_set_pending(dev, vector);
- }
- }
-}
-
-static int virtio_pci_set_guest_notifier(DeviceState *d, int n, bool assign,
- bool with_irqfd)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(vdev);
- VirtQueue *vq = virtio_get_queue(vdev, n);
- EventNotifier *notifier = virtio_queue_get_guest_notifier(vq);
-
- if (assign) {
- int r = event_notifier_init(notifier, 0);
- if (r < 0) {
- return r;
- }
- virtio_queue_set_guest_notifier_fd_handler(vq, true, with_irqfd);
- } else {
- virtio_queue_set_guest_notifier_fd_handler(vq, false, with_irqfd);
- event_notifier_cleanup(notifier);
- }
-
- if (!msix_enabled(&proxy->pci_dev) &&
- vdev->use_guest_notifier_mask &&
- vdc->guest_notifier_mask) {
- vdc->guest_notifier_mask(vdev, n, !assign);
- }
-
- return 0;
-}
-
-static bool virtio_pci_query_guest_notifiers(DeviceState *d)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- return msix_enabled(&proxy->pci_dev);
-}
-
-static int virtio_pci_set_guest_notifiers(DeviceState *d, int nvqs, bool assign)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
- int r, n;
- bool with_irqfd = msix_enabled(&proxy->pci_dev) &&
- kvm_msi_via_irqfd_enabled();
-
- nvqs = MIN(nvqs, VIRTIO_QUEUE_MAX);
-
- /* When deassigning, pass a consistent nvqs value
- * to avoid leaking notifiers.
- */
- assert(assign || nvqs == proxy->nvqs_with_notifiers);
-
- proxy->nvqs_with_notifiers = nvqs;
-
- /* Must unset vector notifier while guest notifier is still assigned */
- if ((proxy->vector_irqfd || k->guest_notifier_mask) && !assign) {
- msix_unset_vector_notifiers(&proxy->pci_dev);
- if (proxy->vector_irqfd) {
- kvm_virtio_pci_vector_release(proxy, nvqs);
- g_free(proxy->vector_irqfd);
- proxy->vector_irqfd = NULL;
- }
- }
-
- for (n = 0; n < nvqs; n++) {
- if (!virtio_queue_get_num(vdev, n)) {
- break;
- }
-
- r = virtio_pci_set_guest_notifier(d, n, assign, with_irqfd);
- if (r < 0) {
- goto assign_error;
- }
- }
-
- /* Must set vector notifier after guest notifier has been assigned */
- if ((with_irqfd || k->guest_notifier_mask) && assign) {
- if (with_irqfd) {
- proxy->vector_irqfd =
- g_malloc0(sizeof(*proxy->vector_irqfd) *
- msix_nr_vectors_allocated(&proxy->pci_dev));
- r = kvm_virtio_pci_vector_use(proxy, nvqs);
- if (r < 0) {
- goto assign_error;
- }
- }
- r = msix_set_vector_notifiers(&proxy->pci_dev,
- virtio_pci_vector_unmask,
- virtio_pci_vector_mask,
- virtio_pci_vector_poll);
- if (r < 0) {
- goto notifiers_error;
- }
- }
-
- return 0;
-
-notifiers_error:
- if (with_irqfd) {
- assert(assign);
- kvm_virtio_pci_vector_release(proxy, nvqs);
- }
-
-assign_error:
- /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */
- assert(assign);
- while (--n >= 0) {
- virtio_pci_set_guest_notifier(d, n, !assign, with_irqfd);
- }
- return r;
-}
-
-static int virtio_pci_set_host_notifier(DeviceState *d, int n, bool assign)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
-
- /* Stop using ioeventfd for virtqueue kick if the device starts using host
- * notifiers. This makes it easy to avoid stepping on each others' toes.
- */
- proxy->ioeventfd_disabled = assign;
- if (assign) {
- virtio_pci_stop_ioeventfd(proxy);
- }
- /* We don't need to start here: it's not needed because backend
- * currently only stops on status change away from ok,
- * reset, vmstop and such. If we do add code to start here,
- * need to check vmstate, device state etc. */
- return virtio_pci_set_host_notifier_internal(proxy, n, assign, false);
-}
-
-static void virtio_pci_vmstate_change(DeviceState *d, bool running)
-{
- VirtIOPCIProxy *proxy = to_virtio_pci_proxy(d);
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- if (running) {
- /* Old QEMU versions did not set bus master enable on status write.
- * Detect DRIVER set and enable it.
- */
- if ((proxy->flags & VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION) &&
- (vdev->status & VIRTIO_CONFIG_S_DRIVER) &&
- !(proxy->pci_dev.config[PCI_COMMAND] & PCI_COMMAND_MASTER)) {
- pci_default_write_config(&proxy->pci_dev, PCI_COMMAND,
- proxy->pci_dev.config[PCI_COMMAND] |
- PCI_COMMAND_MASTER, 1);
- }
- virtio_pci_start_ioeventfd(proxy);
- } else {
- virtio_pci_stop_ioeventfd(proxy);
- }
-}
-
-#ifdef CONFIG_VIRTFS
-static void virtio_9p_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- V9fsPCIState *dev = VIRTIO_9P_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static Property virtio_9p_pci_properties[] = {
- DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_9p_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
-
- k->realize = virtio_9p_pci_realize;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_9P;
- pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
- pcidev_k->class_id = 0x2;
- set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->props = virtio_9p_pci_properties;
-}
-
-static void virtio_9p_pci_instance_init(Object *obj)
-{
- V9fsPCIState *dev = VIRTIO_9P_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_9P);
-}
-
-static const TypeInfo virtio_9p_pci_info = {
- .name = TYPE_VIRTIO_9P_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(V9fsPCIState),
- .instance_init = virtio_9p_pci_instance_init,
- .class_init = virtio_9p_pci_class_init,
-};
-#endif /* CONFIG_VIRTFS */
-
-/*
- * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
- */
-
-static int virtio_pci_query_nvectors(DeviceState *d)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(d);
-
- return proxy->nvectors;
-}
-
-static int virtio_pci_add_mem_cap(VirtIOPCIProxy *proxy,
- struct virtio_pci_cap *cap)
-{
- PCIDevice *dev = &proxy->pci_dev;
- int offset;
-
- offset = pci_add_capability(dev, PCI_CAP_ID_VNDR, 0, cap->cap_len);
- assert(offset > 0);
-
- assert(cap->cap_len >= sizeof *cap);
- memcpy(dev->config + offset + PCI_CAP_FLAGS, &cap->cap_len,
- cap->cap_len - PCI_CAP_FLAGS);
-
- return offset;
-}
-
-static uint64_t virtio_pci_common_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- VirtIOPCIProxy *proxy = opaque;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- uint32_t val = 0;
- int i;
-
- switch (addr) {
- case VIRTIO_PCI_COMMON_DFSELECT:
- val = proxy->dfselect;
- break;
- case VIRTIO_PCI_COMMON_DF:
- if (proxy->dfselect <= 1) {
- val = (vdev->host_features & ~VIRTIO_LEGACY_FEATURES) >>
- (32 * proxy->dfselect);
- }
- break;
- case VIRTIO_PCI_COMMON_GFSELECT:
- val = proxy->gfselect;
- break;
- case VIRTIO_PCI_COMMON_GF:
- if (proxy->gfselect < ARRAY_SIZE(proxy->guest_features)) {
- val = proxy->guest_features[proxy->gfselect];
- }
- break;
- case VIRTIO_PCI_COMMON_MSIX:
- val = vdev->config_vector;
- break;
- case VIRTIO_PCI_COMMON_NUMQ:
- for (i = 0; i < VIRTIO_QUEUE_MAX; ++i) {
- if (virtio_queue_get_num(vdev, i)) {
- val = i + 1;
- }
- }
- break;
- case VIRTIO_PCI_COMMON_STATUS:
- val = vdev->status;
- break;
- case VIRTIO_PCI_COMMON_CFGGENERATION:
- val = vdev->generation;
- break;
- case VIRTIO_PCI_COMMON_Q_SELECT:
- val = vdev->queue_sel;
- break;
- case VIRTIO_PCI_COMMON_Q_SIZE:
- val = virtio_queue_get_num(vdev, vdev->queue_sel);
- break;
- case VIRTIO_PCI_COMMON_Q_MSIX:
- val = virtio_queue_vector(vdev, vdev->queue_sel);
- break;
- case VIRTIO_PCI_COMMON_Q_ENABLE:
- val = proxy->vqs[vdev->queue_sel].enabled;
- break;
- case VIRTIO_PCI_COMMON_Q_NOFF:
- /* Simply map queues in order */
- val = vdev->queue_sel;
- break;
- case VIRTIO_PCI_COMMON_Q_DESCLO:
- val = proxy->vqs[vdev->queue_sel].desc[0];
- break;
- case VIRTIO_PCI_COMMON_Q_DESCHI:
- val = proxy->vqs[vdev->queue_sel].desc[1];
- break;
- case VIRTIO_PCI_COMMON_Q_AVAILLO:
- val = proxy->vqs[vdev->queue_sel].avail[0];
- break;
- case VIRTIO_PCI_COMMON_Q_AVAILHI:
- val = proxy->vqs[vdev->queue_sel].avail[1];
- break;
- case VIRTIO_PCI_COMMON_Q_USEDLO:
- val = proxy->vqs[vdev->queue_sel].used[0];
- break;
- case VIRTIO_PCI_COMMON_Q_USEDHI:
- val = proxy->vqs[vdev->queue_sel].used[1];
- break;
- default:
- val = 0;
- }
-
- return val;
-}
-
-static void virtio_pci_common_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- VirtIOPCIProxy *proxy = opaque;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- switch (addr) {
- case VIRTIO_PCI_COMMON_DFSELECT:
- proxy->dfselect = val;
- break;
- case VIRTIO_PCI_COMMON_GFSELECT:
- proxy->gfselect = val;
- break;
- case VIRTIO_PCI_COMMON_GF:
- if (proxy->gfselect < ARRAY_SIZE(proxy->guest_features)) {
- proxy->guest_features[proxy->gfselect] = val;
- virtio_set_features(vdev,
- (((uint64_t)proxy->guest_features[1]) << 32) |
- proxy->guest_features[0]);
- }
- break;
- case VIRTIO_PCI_COMMON_MSIX:
- msix_vector_unuse(&proxy->pci_dev, vdev->config_vector);
- /* Make it possible for guest to discover an error took place. */
- if (msix_vector_use(&proxy->pci_dev, val) < 0) {
- val = VIRTIO_NO_VECTOR;
- }
- vdev->config_vector = val;
- break;
- case VIRTIO_PCI_COMMON_STATUS:
- if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) {
- virtio_pci_stop_ioeventfd(proxy);
- }
-
- virtio_set_status(vdev, val & 0xFF);
-
- if (val & VIRTIO_CONFIG_S_DRIVER_OK) {
- virtio_pci_start_ioeventfd(proxy);
- }
-
- if (vdev->status == 0) {
- virtio_pci_reset(DEVICE(proxy));
- }
-
- break;
- case VIRTIO_PCI_COMMON_Q_SELECT:
- if (val < VIRTIO_QUEUE_MAX) {
- vdev->queue_sel = val;
- }
- break;
- case VIRTIO_PCI_COMMON_Q_SIZE:
- proxy->vqs[vdev->queue_sel].num = val;
- break;
- case VIRTIO_PCI_COMMON_Q_MSIX:
- msix_vector_unuse(&proxy->pci_dev,
- virtio_queue_vector(vdev, vdev->queue_sel));
- /* Make it possible for guest to discover an error took place. */
- if (msix_vector_use(&proxy->pci_dev, val) < 0) {
- val = VIRTIO_NO_VECTOR;
- }
- virtio_queue_set_vector(vdev, vdev->queue_sel, val);
- break;
- case VIRTIO_PCI_COMMON_Q_ENABLE:
- /* TODO: need a way to put num back on reset. */
- virtio_queue_set_num(vdev, vdev->queue_sel,
- proxy->vqs[vdev->queue_sel].num);
- virtio_queue_set_rings(vdev, vdev->queue_sel,
- ((uint64_t)proxy->vqs[vdev->queue_sel].desc[1]) << 32 |
- proxy->vqs[vdev->queue_sel].desc[0],
- ((uint64_t)proxy->vqs[vdev->queue_sel].avail[1]) << 32 |
- proxy->vqs[vdev->queue_sel].avail[0],
- ((uint64_t)proxy->vqs[vdev->queue_sel].used[1]) << 32 |
- proxy->vqs[vdev->queue_sel].used[0]);
- proxy->vqs[vdev->queue_sel].enabled = 1;
- break;
- case VIRTIO_PCI_COMMON_Q_DESCLO:
- proxy->vqs[vdev->queue_sel].desc[0] = val;
- break;
- case VIRTIO_PCI_COMMON_Q_DESCHI:
- proxy->vqs[vdev->queue_sel].desc[1] = val;
- break;
- case VIRTIO_PCI_COMMON_Q_AVAILLO:
- proxy->vqs[vdev->queue_sel].avail[0] = val;
- break;
- case VIRTIO_PCI_COMMON_Q_AVAILHI:
- proxy->vqs[vdev->queue_sel].avail[1] = val;
- break;
- case VIRTIO_PCI_COMMON_Q_USEDLO:
- proxy->vqs[vdev->queue_sel].used[0] = val;
- break;
- case VIRTIO_PCI_COMMON_Q_USEDHI:
- proxy->vqs[vdev->queue_sel].used[1] = val;
- break;
- default:
- break;
- }
-}
-
-
-static uint64_t virtio_pci_notify_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- return 0;
-}
-
-static void virtio_pci_notify_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- VirtIODevice *vdev = opaque;
- unsigned queue = addr / QEMU_VIRTIO_PCI_QUEUE_MEM_MULT;
-
- if (queue < VIRTIO_QUEUE_MAX) {
- virtio_queue_notify(vdev, queue);
- }
-}
-
-static void virtio_pci_notify_write_pio(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- VirtIODevice *vdev = opaque;
- unsigned queue = val;
-
- if (queue < VIRTIO_QUEUE_MAX) {
- virtio_queue_notify(vdev, queue);
- }
-}
-
-static uint64_t virtio_pci_isr_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- VirtIOPCIProxy *proxy = opaque;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
- uint64_t val = vdev->isr;
-
- vdev->isr = 0;
- pci_irq_deassert(&proxy->pci_dev);
-
- return val;
-}
-
-static void virtio_pci_isr_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
-}
-
-static uint64_t virtio_pci_device_read(void *opaque, hwaddr addr,
- unsigned size)
-{
- VirtIODevice *vdev = opaque;
- uint64_t val = 0;
-
- switch (size) {
- case 1:
- val = virtio_config_modern_readb(vdev, addr);
- break;
- case 2:
- val = virtio_config_modern_readw(vdev, addr);
- break;
- case 4:
- val = virtio_config_modern_readl(vdev, addr);
- break;
- }
- return val;
-}
-
-static void virtio_pci_device_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
- VirtIODevice *vdev = opaque;
- switch (size) {
- case 1:
- virtio_config_modern_writeb(vdev, addr, val);
- break;
- case 2:
- virtio_config_modern_writew(vdev, addr, val);
- break;
- case 4:
- virtio_config_modern_writel(vdev, addr, val);
- break;
- }
-}
-
-static void virtio_pci_modern_regions_init(VirtIOPCIProxy *proxy)
-{
- static const MemoryRegionOps common_ops = {
- .read = virtio_pci_common_read,
- .write = virtio_pci_common_write,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
- };
- static const MemoryRegionOps isr_ops = {
- .read = virtio_pci_isr_read,
- .write = virtio_pci_isr_write,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
- };
- static const MemoryRegionOps device_ops = {
- .read = virtio_pci_device_read,
- .write = virtio_pci_device_write,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
- };
- static const MemoryRegionOps notify_ops = {
- .read = virtio_pci_notify_read,
- .write = virtio_pci_notify_write,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
- };
- static const MemoryRegionOps notify_pio_ops = {
- .read = virtio_pci_notify_read,
- .write = virtio_pci_notify_write_pio,
- .impl = {
- .min_access_size = 1,
- .max_access_size = 4,
- },
- .endianness = DEVICE_LITTLE_ENDIAN,
- };
-
-
- memory_region_init_io(&proxy->common.mr, OBJECT(proxy),
- &common_ops,
- proxy,
- "virtio-pci-common",
- proxy->common.size);
-
- memory_region_init_io(&proxy->isr.mr, OBJECT(proxy),
- &isr_ops,
- proxy,
- "virtio-pci-isr",
- proxy->isr.size);
-
- memory_region_init_io(&proxy->device.mr, OBJECT(proxy),
- &device_ops,
- virtio_bus_get_device(&proxy->bus),
- "virtio-pci-device",
- proxy->device.size);
-
- memory_region_init_io(&proxy->notify.mr, OBJECT(proxy),
- &notify_ops,
- virtio_bus_get_device(&proxy->bus),
- "virtio-pci-notify",
- proxy->notify.size);
-
- memory_region_init_io(&proxy->notify_pio.mr, OBJECT(proxy),
- &notify_pio_ops,
- virtio_bus_get_device(&proxy->bus),
- "virtio-pci-notify-pio",
- proxy->notify.size);
-}
-
-static void virtio_pci_modern_region_map(VirtIOPCIProxy *proxy,
- VirtIOPCIRegion *region,
- struct virtio_pci_cap *cap,
- MemoryRegion *mr,
- uint8_t bar)
-{
- memory_region_add_subregion(mr, region->offset, &region->mr);
-
- cap->cfg_type = region->type;
- cap->bar = bar;
- cap->offset = cpu_to_le32(region->offset);
- cap->length = cpu_to_le32(region->size);
- virtio_pci_add_mem_cap(proxy, cap);
-
-}
-
-static void virtio_pci_modern_mem_region_map(VirtIOPCIProxy *proxy,
- VirtIOPCIRegion *region,
- struct virtio_pci_cap *cap)
-{
- virtio_pci_modern_region_map(proxy, region, cap,
- &proxy->modern_bar, proxy->modern_mem_bar);
-}
-
-static void virtio_pci_modern_io_region_map(VirtIOPCIProxy *proxy,
- VirtIOPCIRegion *region,
- struct virtio_pci_cap *cap)
-{
- virtio_pci_modern_region_map(proxy, region, cap,
- &proxy->io_bar, proxy->modern_io_bar);
-}
-
-static void virtio_pci_modern_mem_region_unmap(VirtIOPCIProxy *proxy,
- VirtIOPCIRegion *region)
-{
- memory_region_del_subregion(&proxy->modern_bar,
- &region->mr);
-}
-
-static void virtio_pci_modern_io_region_unmap(VirtIOPCIProxy *proxy,
- VirtIOPCIRegion *region)
-{
- memory_region_del_subregion(&proxy->io_bar,
- &region->mr);
-}
-
-/* This is called by virtio-bus just after the device is plugged. */
-static void virtio_pci_device_plugged(DeviceState *d, Error **errp)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(d);
- VirtioBusState *bus = &proxy->bus;
- bool legacy = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_LEGACY);
- bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN);
- bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
- uint8_t *config;
- uint32_t size;
- VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus);
-
- config = proxy->pci_dev.config;
- if (proxy->class_code) {
- pci_config_set_class(config, proxy->class_code);
- }
-
- if (legacy) {
- /* legacy and transitional */
- pci_set_word(config + PCI_SUBSYSTEM_VENDOR_ID,
- pci_get_word(config + PCI_VENDOR_ID));
- pci_set_word(config + PCI_SUBSYSTEM_ID, virtio_bus_get_vdev_id(bus));
- } else {
- /* pure virtio-1.0 */
- pci_set_word(config + PCI_VENDOR_ID,
- PCI_VENDOR_ID_REDHAT_QUMRANET);
- pci_set_word(config + PCI_DEVICE_ID,
- 0x1040 + virtio_bus_get_vdev_id(bus));
- pci_config_set_revision(config, 1);
- }
- config[PCI_INTERRUPT_PIN] = 1;
-
-
- if (modern) {
- struct virtio_pci_cap cap = {
- .cap_len = sizeof cap,
- };
- struct virtio_pci_notify_cap notify = {
- .cap.cap_len = sizeof notify,
- .notify_off_multiplier =
- cpu_to_le32(QEMU_VIRTIO_PCI_QUEUE_MEM_MULT),
- };
- struct virtio_pci_cfg_cap cfg = {
- .cap.cap_len = sizeof cfg,
- .cap.cfg_type = VIRTIO_PCI_CAP_PCI_CFG,
- };
- struct virtio_pci_notify_cap notify_pio = {
- .cap.cap_len = sizeof notify,
- .notify_off_multiplier = cpu_to_le32(0x0),
- };
-
- struct virtio_pci_cfg_cap *cfg_mask;
-
- virtio_add_feature(&vdev->host_features, VIRTIO_F_VERSION_1);
- virtio_pci_modern_regions_init(proxy);
-
- virtio_pci_modern_mem_region_map(proxy, &proxy->common, &cap);
- virtio_pci_modern_mem_region_map(proxy, &proxy->isr, &cap);
- virtio_pci_modern_mem_region_map(proxy, &proxy->device, &cap);
- virtio_pci_modern_mem_region_map(proxy, &proxy->notify, &notify.cap);
-
- if (modern_pio) {
- memory_region_init(&proxy->io_bar, OBJECT(proxy),
- "virtio-pci-io", 0x4);
-
- pci_register_bar(&proxy->pci_dev, proxy->modern_io_bar,
- PCI_BASE_ADDRESS_SPACE_IO, &proxy->io_bar);
-
- virtio_pci_modern_io_region_map(proxy, &proxy->notify_pio,
- &notify_pio.cap);
- }
-
- pci_register_bar(&proxy->pci_dev, proxy->modern_mem_bar,
- PCI_BASE_ADDRESS_SPACE_MEMORY |
- PCI_BASE_ADDRESS_MEM_PREFETCH |
- PCI_BASE_ADDRESS_MEM_TYPE_64,
- &proxy->modern_bar);
-
- proxy->config_cap = virtio_pci_add_mem_cap(proxy, &cfg.cap);
- cfg_mask = (void *)(proxy->pci_dev.wmask + proxy->config_cap);
- pci_set_byte(&cfg_mask->cap.bar, ~0x0);
- pci_set_long((uint8_t *)&cfg_mask->cap.offset, ~0x0);
- pci_set_long((uint8_t *)&cfg_mask->cap.length, ~0x0);
- pci_set_long(cfg_mask->pci_cfg_data, ~0x0);
- }
-
- if (proxy->nvectors) {
- int err = msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors,
- proxy->msix_bar);
- if (err) {
- /* Notice when a system that supports MSIx can't initialize it. */
- if (err != -ENOTSUP) {
- error_report("unable to init msix vectors to %" PRIu32,
- proxy->nvectors);
- }
- proxy->nvectors = 0;
- }
- }
-
- proxy->pci_dev.config_write = virtio_write_config;
- proxy->pci_dev.config_read = virtio_read_config;
-
- if (legacy) {
- size = VIRTIO_PCI_REGION_SIZE(&proxy->pci_dev)
- + virtio_bus_get_vdev_config_len(bus);
- size = pow2ceil(size);
-
- memory_region_init_io(&proxy->bar, OBJECT(proxy),
- &virtio_pci_config_ops,
- proxy, "virtio-pci", size);
-
- pci_register_bar(&proxy->pci_dev, proxy->legacy_io_bar,
- PCI_BASE_ADDRESS_SPACE_IO, &proxy->bar);
- }
-
- if (!kvm_has_many_ioeventfds()) {
- proxy->flags &= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD;
- }
-
- virtio_add_feature(&vdev->host_features, VIRTIO_F_BAD_FEATURE);
-}
-
-static void virtio_pci_device_unplugged(DeviceState *d)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(d);
- bool modern = !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN);
- bool modern_pio = proxy->flags & VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY;
-
- virtio_pci_stop_ioeventfd(proxy);
-
- if (modern) {
- virtio_pci_modern_mem_region_unmap(proxy, &proxy->common);
- virtio_pci_modern_mem_region_unmap(proxy, &proxy->isr);
- virtio_pci_modern_mem_region_unmap(proxy, &proxy->device);
- virtio_pci_modern_mem_region_unmap(proxy, &proxy->notify);
- if (modern_pio) {
- virtio_pci_modern_io_region_unmap(proxy, &proxy->notify_pio);
- }
- }
-}
-
-static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev);
- VirtioPCIClass *k = VIRTIO_PCI_GET_CLASS(pci_dev);
-
- /*
- * virtio pci bar layout used by default.
- * subclasses can re-arrange things if needed.
- *
- * region 0 -- virtio legacy io bar
- * region 1 -- msi-x bar
- * region 4+5 -- virtio modern memory (64bit) bar
- *
- */
- proxy->legacy_io_bar = 0;
- proxy->msix_bar = 1;
- proxy->modern_io_bar = 2;
- proxy->modern_mem_bar = 4;
-
- proxy->common.offset = 0x0;
- proxy->common.size = 0x1000;
- proxy->common.type = VIRTIO_PCI_CAP_COMMON_CFG;
-
- proxy->isr.offset = 0x1000;
- proxy->isr.size = 0x1000;
- proxy->isr.type = VIRTIO_PCI_CAP_ISR_CFG;
-
- proxy->device.offset = 0x2000;
- proxy->device.size = 0x1000;
- proxy->device.type = VIRTIO_PCI_CAP_DEVICE_CFG;
-
- proxy->notify.offset = 0x3000;
- proxy->notify.size =
- QEMU_VIRTIO_PCI_QUEUE_MEM_MULT * VIRTIO_QUEUE_MAX;
- proxy->notify.type = VIRTIO_PCI_CAP_NOTIFY_CFG;
-
- proxy->notify_pio.offset = 0x0;
- proxy->notify_pio.size = 0x4;
- proxy->notify_pio.type = VIRTIO_PCI_CAP_NOTIFY_CFG;
-
- /* subclasses can enforce modern, so do this unconditionally */
- memory_region_init(&proxy->modern_bar, OBJECT(proxy), "virtio-pci",
- 2 * QEMU_VIRTIO_PCI_QUEUE_MEM_MULT *
- VIRTIO_QUEUE_MAX);
-
- memory_region_init_alias(&proxy->modern_cfg,
- OBJECT(proxy),
- "virtio-pci-cfg",
- &proxy->modern_bar,
- 0,
- memory_region_size(&proxy->modern_bar));
-
- address_space_init(&proxy->modern_as, &proxy->modern_cfg, "virtio-pci-cfg-as");
-
- if (pci_is_express(pci_dev) && pci_bus_is_express(pci_dev->bus) &&
- !pci_bus_is_root(pci_dev->bus)) {
- int pos;
-
- pos = pcie_endpoint_cap_init(pci_dev, 0);
- assert(pos > 0);
-
- pos = pci_add_capability(pci_dev, PCI_CAP_ID_PM, 0, PCI_PM_SIZEOF);
- assert(pos > 0);
-
- /*
- * Indicates that this function complies with revision 1.2 of the
- * PCI Power Management Interface Specification.
- */
- pci_set_word(pci_dev->config + pos + PCI_PM_PMC, 0x3);
- } else {
- /*
- * make future invocations of pci_is_express() return false
- * and pci_config_size() return PCI_CONFIG_SPACE_SIZE.
- */
- pci_dev->cap_present &= ~QEMU_PCI_CAP_EXPRESS;
- }
-
- virtio_pci_bus_new(&proxy->bus, sizeof(proxy->bus), proxy);
- if (k->realize) {
- k->realize(proxy, errp);
- }
-}
-
-static void virtio_pci_exit(PCIDevice *pci_dev)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(pci_dev);
-
- msix_uninit_exclusive_bar(pci_dev);
- address_space_destroy(&proxy->modern_as);
-}
-
-static void virtio_pci_reset(DeviceState *qdev)
-{
- VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev);
- VirtioBusState *bus = VIRTIO_BUS(&proxy->bus);
- int i;
-
- virtio_pci_stop_ioeventfd(proxy);
- virtio_bus_reset(bus);
- msix_unuse_all_vectors(&proxy->pci_dev);
-
- for (i = 0; i < VIRTIO_QUEUE_MAX; i++) {
- proxy->vqs[i].enabled = 0;
- }
-}
-
-static Property virtio_pci_properties[] = {
- DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT, false),
- DEFINE_PROP_BIT("disable-legacy", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT, false),
- DEFINE_PROP_BIT("disable-modern", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT, true),
- DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT, true),
- DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT, false),
- DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT, false),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_pci_dc_realize(DeviceState *qdev, Error **errp)
-{
- VirtioPCIClass *vpciklass = VIRTIO_PCI_GET_CLASS(qdev);
- VirtIOPCIProxy *proxy = VIRTIO_PCI(qdev);
- PCIDevice *pci_dev = &proxy->pci_dev;
-
- if (!(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_PCIE) &&
- !(proxy->flags & VIRTIO_PCI_FLAG_DISABLE_MODERN)) {
- pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS;
- }
-
- vpciklass->parent_dc_realize(qdev, errp);
-}
-
-static void virtio_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
- VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
-
- dc->props = virtio_pci_properties;
- k->realize = virtio_pci_realize;
- k->exit = virtio_pci_exit;
- k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- k->revision = VIRTIO_PCI_ABI_VERSION;
- k->class_id = PCI_CLASS_OTHERS;
- vpciklass->parent_dc_realize = dc->realize;
- dc->realize = virtio_pci_dc_realize;
- dc->reset = virtio_pci_reset;
-}
-
-static const TypeInfo virtio_pci_info = {
- .name = TYPE_VIRTIO_PCI,
- .parent = TYPE_PCI_DEVICE,
- .instance_size = sizeof(VirtIOPCIProxy),
- .class_init = virtio_pci_class_init,
- .class_size = sizeof(VirtioPCIClass),
- .abstract = true,
-};
-
-/* virtio-blk-pci */
-
-static Property virtio_blk_pci_properties[] = {
- DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
- DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void virtio_blk_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->props = virtio_blk_pci_properties;
- k->realize = virtio_blk_pci_realize;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK;
- pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
- pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
-}
-
-static void virtio_blk_pci_instance_init(Object *obj)
-{
- VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_BLK);
- object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
- &error_abort);
- object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
- "bootindex", &error_abort);
-}
-
-static const TypeInfo virtio_blk_pci_info = {
- .name = TYPE_VIRTIO_BLK_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIOBlkPCI),
- .instance_init = virtio_blk_pci_instance_init,
- .class_init = virtio_blk_pci_class_init,
-};
-
-/* virtio-scsi-pci */
-
-static Property virtio_scsi_pci_properties[] = {
- DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
- DEV_NVECTORS_UNSPECIFIED),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
- VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
- DeviceState *proxy = DEVICE(vpci_dev);
- char *bus_name;
-
- if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
- vpci_dev->nvectors = vs->conf.num_queues + 3;
- }
-
- /*
- * For command line compatibility, this sets the virtio-scsi-device bus
- * name as before.
- */
- if (proxy->id) {
- bus_name = g_strdup_printf("%s.0", proxy->id);
- virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
- g_free(bus_name);
- }
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void virtio_scsi_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- k->realize = virtio_scsi_pci_realize;
- set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->props = virtio_scsi_pci_properties;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
- pcidev_k->revision = 0x00;
- pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
-}
-
-static void virtio_scsi_pci_instance_init(Object *obj)
-{
- VirtIOSCSIPCI *dev = VIRTIO_SCSI_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_SCSI);
- object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev), "iothread",
- &error_abort);
-}
-
-static const TypeInfo virtio_scsi_pci_info = {
- .name = TYPE_VIRTIO_SCSI_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIOSCSIPCI),
- .instance_init = virtio_scsi_pci_instance_init,
- .class_init = virtio_scsi_pci_class_init,
-};
-
-/* vhost-scsi-pci */
-
-#ifdef CONFIG_VHOST_SCSI
-static Property vhost_scsi_pci_properties[] = {
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
- DEV_NVECTORS_UNSPECIFIED),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void vhost_scsi_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VHostSCSIPCI *dev = VHOST_SCSI_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
- VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
-
- if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
- vpci_dev->nvectors = vs->conf.num_queues + 3;
- }
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void vhost_scsi_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
- k->realize = vhost_scsi_pci_realize;
- set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->props = vhost_scsi_pci_properties;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
- pcidev_k->revision = 0x00;
- pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI;
-}
-
-static void vhost_scsi_pci_instance_init(Object *obj)
-{
- VHostSCSIPCI *dev = VHOST_SCSI_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VHOST_SCSI);
- object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
- "bootindex", &error_abort);
-}
-
-static const TypeInfo vhost_scsi_pci_info = {
- .name = TYPE_VHOST_SCSI_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VHostSCSIPCI),
- .instance_init = vhost_scsi_pci_instance_init,
- .class_init = vhost_scsi_pci_class_init,
-};
-#endif
-
-/* virtio-balloon-pci */
-
-static Property virtio_balloon_pci_properties[] = {
- DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
-
- if (vpci_dev->class_code != PCI_CLASS_OTHERS &&
- vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */
- vpci_dev->class_code = PCI_CLASS_OTHERS;
- }
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
- k->realize = virtio_balloon_pci_realize;
- set_bit(DEVICE_CATEGORY_MISC, dc->categories);
- dc->props = virtio_balloon_pci_properties;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON;
- pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
- pcidev_k->class_id = PCI_CLASS_OTHERS;
-}
-
-static void virtio_balloon_pci_instance_init(Object *obj)
-{
- VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_BALLOON);
- object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev),
- "guest-stats", &error_abort);
- object_property_add_alias(obj, "guest-stats-polling-interval",
- OBJECT(&dev->vdev),
- "guest-stats-polling-interval", &error_abort);
-}
-
-static const TypeInfo virtio_balloon_pci_info = {
- .name = TYPE_VIRTIO_BALLOON_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIOBalloonPCI),
- .instance_init = virtio_balloon_pci_instance_init,
- .class_init = virtio_balloon_pci_class_init,
-};
-
-/* virtio-serial-pci */
-
-static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
- DeviceState *proxy = DEVICE(vpci_dev);
- char *bus_name;
-
- if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
- vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
- vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */
- vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER;
- }
-
- /* backwards-compatibility with machines that were created with
- DEV_NVECTORS_UNSPECIFIED */
- if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
- vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1;
- }
-
- /*
- * For command line compatibility, this sets the virtio-serial-device bus
- * name as before.
- */
- if (proxy->id) {
- bus_name = g_strdup_printf("%s.0", proxy->id);
- virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name);
- g_free(bus_name);
- }
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static Property virtio_serial_pci_properties[] = {
- DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
- DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_serial_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
- k->realize = virtio_serial_pci_realize;
- set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
- dc->props = virtio_serial_pci_properties;
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE;
- pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
- pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
-}
-
-static void virtio_serial_pci_instance_init(Object *obj)
-{
- VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_SERIAL);
-}
-
-static const TypeInfo virtio_serial_pci_info = {
- .name = TYPE_VIRTIO_SERIAL_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIOSerialPCI),
- .instance_init = virtio_serial_pci_instance_init,
- .class_init = virtio_serial_pci_class_init,
-};
-
-/* virtio-net-pci */
-
-static Property virtio_net_properties[] = {
- DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
- VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_net_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- DeviceState *qdev = DEVICE(vpci_dev);
- VirtIONetPCI *dev = VIRTIO_NET_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&dev->vdev);
-
- virtio_net_set_netclient_name(&dev->vdev, qdev->id,
- object_get_typename(OBJECT(qdev)));
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void virtio_net_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
- VirtioPCIClass *vpciklass = VIRTIO_PCI_CLASS(klass);
-
- k->romfile = "efi-virtio.rom";
- k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- k->device_id = PCI_DEVICE_ID_VIRTIO_NET;
- k->revision = VIRTIO_PCI_ABI_VERSION;
- k->class_id = PCI_CLASS_NETWORK_ETHERNET;
- set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
- dc->props = virtio_net_properties;
- vpciklass->realize = virtio_net_pci_realize;
-}
-
-static void virtio_net_pci_instance_init(Object *obj)
-{
- VirtIONetPCI *dev = VIRTIO_NET_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_NET);
- object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev),
- "bootindex", &error_abort);
-}
-
-static const TypeInfo virtio_net_pci_info = {
- .name = TYPE_VIRTIO_NET_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIONetPCI),
- .instance_init = virtio_net_pci_instance_init,
- .class_init = virtio_net_pci_class_init,
-};
-
-/* virtio-rng-pci */
-
-static void virtio_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIORngPCI *vrng = VIRTIO_RNG_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&vrng->vdev);
- Error *err = NULL;
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- object_property_set_bool(OBJECT(vdev), true, "realized", &err);
- if (err) {
- error_propagate(errp, err);
- return;
- }
-
- object_property_set_link(OBJECT(vrng),
- OBJECT(vrng->vdev.conf.rng), "rng",
- NULL);
-}
-
-static void virtio_rng_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- k->realize = virtio_rng_pci_realize;
- set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-
- pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_RNG;
- pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
- pcidev_k->class_id = PCI_CLASS_OTHERS;
-}
-
-static void virtio_rng_initfn(Object *obj)
-{
- VirtIORngPCI *dev = VIRTIO_RNG_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_RNG);
- object_property_add_alias(obj, "rng", OBJECT(&dev->vdev), "rng",
- &error_abort);
-}
-
-static const TypeInfo virtio_rng_pci_info = {
- .name = TYPE_VIRTIO_RNG_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIORngPCI),
- .instance_init = virtio_rng_initfn,
- .class_init = virtio_rng_pci_class_init,
-};
-
-/* virtio-input-pci */
-
-static Property virtio_input_pci_properties[] = {
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void virtio_input_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
-{
- VirtIOInputPCI *vinput = VIRTIO_INPUT_PCI(vpci_dev);
- DeviceState *vdev = DEVICE(&vinput->vdev);
-
- qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- /* force virtio-1.0 */
- vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN;
- vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY;
- object_property_set_bool(OBJECT(vdev), true, "realized", errp);
-}
-
-static void virtio_input_pci_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- dc->props = virtio_input_pci_properties;
- k->realize = virtio_input_pci_realize;
- set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
-
- pcidev_k->class_id = PCI_CLASS_INPUT_OTHER;
-}
-
-static void virtio_input_hid_kbd_pci_class_init(ObjectClass *klass, void *data)
-{
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- pcidev_k->class_id = PCI_CLASS_INPUT_KEYBOARD;
-}
-
-static void virtio_input_hid_mouse_pci_class_init(ObjectClass *klass,
- void *data)
-{
- PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
-
- pcidev_k->class_id = PCI_CLASS_INPUT_MOUSE;
-}
-
-static void virtio_keyboard_initfn(Object *obj)
-{
- VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_KEYBOARD);
-}
-
-static void virtio_mouse_initfn(Object *obj)
-{
- VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_MOUSE);
-}
-
-static void virtio_tablet_initfn(Object *obj)
-{
- VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_TABLET);
-}
-
-static const TypeInfo virtio_input_pci_info = {
- .name = TYPE_VIRTIO_INPUT_PCI,
- .parent = TYPE_VIRTIO_PCI,
- .instance_size = sizeof(VirtIOInputPCI),
- .class_init = virtio_input_pci_class_init,
- .abstract = true,
-};
-
-static const TypeInfo virtio_input_hid_pci_info = {
- .name = TYPE_VIRTIO_INPUT_HID_PCI,
- .parent = TYPE_VIRTIO_INPUT_PCI,
- .instance_size = sizeof(VirtIOInputHIDPCI),
- .abstract = true,
-};
-
-static const TypeInfo virtio_keyboard_pci_info = {
- .name = TYPE_VIRTIO_KEYBOARD_PCI,
- .parent = TYPE_VIRTIO_INPUT_HID_PCI,
- .class_init = virtio_input_hid_kbd_pci_class_init,
- .instance_size = sizeof(VirtIOInputHIDPCI),
- .instance_init = virtio_keyboard_initfn,
-};
-
-static const TypeInfo virtio_mouse_pci_info = {
- .name = TYPE_VIRTIO_MOUSE_PCI,
- .parent = TYPE_VIRTIO_INPUT_HID_PCI,
- .class_init = virtio_input_hid_mouse_pci_class_init,
- .instance_size = sizeof(VirtIOInputHIDPCI),
- .instance_init = virtio_mouse_initfn,
-};
-
-static const TypeInfo virtio_tablet_pci_info = {
- .name = TYPE_VIRTIO_TABLET_PCI,
- .parent = TYPE_VIRTIO_INPUT_HID_PCI,
- .instance_size = sizeof(VirtIOInputHIDPCI),
- .instance_init = virtio_tablet_initfn,
-};
-
-#ifdef CONFIG_LINUX
-static void virtio_host_initfn(Object *obj)
-{
- VirtIOInputHostPCI *dev = VIRTIO_INPUT_HOST_PCI(obj);
-
- virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
- TYPE_VIRTIO_INPUT_HOST);
-}
-
-static const TypeInfo virtio_host_pci_info = {
- .name = TYPE_VIRTIO_INPUT_HOST_PCI,
- .parent = TYPE_VIRTIO_INPUT_PCI,
- .instance_size = sizeof(VirtIOInputHostPCI),
- .instance_init = virtio_host_initfn,
-};
-#endif
-
-/* virtio-pci-bus */
-
-static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size,
- VirtIOPCIProxy *dev)
-{
- DeviceState *qdev = DEVICE(dev);
- char virtio_bus_name[] = "virtio-bus";
-
- qbus_create_inplace(bus, bus_size, TYPE_VIRTIO_PCI_BUS, qdev,
- virtio_bus_name);
-}
-
-static void virtio_pci_bus_class_init(ObjectClass *klass, void *data)
-{
- BusClass *bus_class = BUS_CLASS(klass);
- VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
- bus_class->max_dev = 1;
- k->notify = virtio_pci_notify;
- k->save_config = virtio_pci_save_config;
- k->load_config = virtio_pci_load_config;
- k->save_queue = virtio_pci_save_queue;
- k->load_queue = virtio_pci_load_queue;
- k->save_extra_state = virtio_pci_save_extra_state;
- k->load_extra_state = virtio_pci_load_extra_state;
- k->has_extra_state = virtio_pci_has_extra_state;
- k->query_guest_notifiers = virtio_pci_query_guest_notifiers;
- k->set_host_notifier = virtio_pci_set_host_notifier;
- k->set_guest_notifiers = virtio_pci_set_guest_notifiers;
- k->vmstate_change = virtio_pci_vmstate_change;
- k->device_plugged = virtio_pci_device_plugged;
- k->device_unplugged = virtio_pci_device_unplugged;
- k->query_nvectors = virtio_pci_query_nvectors;
-}
-
-static const TypeInfo virtio_pci_bus_info = {
- .name = TYPE_VIRTIO_PCI_BUS,
- .parent = TYPE_VIRTIO_BUS,
- .instance_size = sizeof(VirtioPCIBusState),
- .class_init = virtio_pci_bus_class_init,
-};
-
-static void virtio_pci_register_types(void)
-{
- type_register_static(&virtio_rng_pci_info);
- type_register_static(&virtio_input_pci_info);
- type_register_static(&virtio_input_hid_pci_info);
- type_register_static(&virtio_keyboard_pci_info);
- type_register_static(&virtio_mouse_pci_info);
- type_register_static(&virtio_tablet_pci_info);
-#ifdef CONFIG_LINUX
- type_register_static(&virtio_host_pci_info);
-#endif
- type_register_static(&virtio_pci_bus_info);
- type_register_static(&virtio_pci_info);
-#ifdef CONFIG_VIRTFS
- type_register_static(&virtio_9p_pci_info);
-#endif
- type_register_static(&virtio_blk_pci_info);
- type_register_static(&virtio_scsi_pci_info);
- type_register_static(&virtio_balloon_pci_info);
- type_register_static(&virtio_serial_pci_info);
- type_register_static(&virtio_net_pci_info);
-#ifdef CONFIG_VHOST_SCSI
- type_register_static(&vhost_scsi_pci_info);
-#endif
-}
-
-type_init(virtio_pci_register_types)