#include "loader.h"
#include "kvm.h"
#include "blockdev.h"
+#include "virtio-pci.h"
/* from Linux's linux/virtio_pci.h */
VIRTIO_PCI_CONFIG_MSI : \
VIRTIO_PCI_CONFIG_NOMSI)
-/* Virtio ABI version, if we increment this, we break the guest driver. */
-#define VIRTIO_PCI_ABI_VERSION 0
-
/* How many bits to shift physical queue address written to QUEUE_PFN.
* 12 is historical, and due to x86 page size. */
#define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12
*/
#define wmb() do { } while (0)
-/* PCI bindings. */
-
-typedef struct {
- PCIDevice pci_dev;
- VirtIODevice *vdev;
- uint32_t flags;
- uint32_t addr;
- uint32_t class_code;
- uint32_t nvectors;
- BlockConf block;
- NICConf nic;
- uint32_t host_features;
-#ifdef CONFIG_LINUX
- V9fsConf fsconf;
-#endif
- virtio_serial_conf serial;
- virtio_net_conf net;
- bool ioeventfd_disabled;
- bool ioeventfd_started;
-} VirtIOPCIProxy;
-
/* virtio device */
static void virtio_pci_notify(void *opaque, uint16_t vector)
vdev->queue_sel = val;
break;
case VIRTIO_PCI_QUEUE_NOTIFY:
- virtio_queue_notify(vdev, val);
+ if (val < VIRTIO_PCI_QUEUE_MAX) {
+ virtio_queue_notify(vdev, val);
+ }
break;
case VIRTIO_PCI_STATUS:
if (!(val & VIRTIO_CONFIG_S_DRIVER_OK)) {
.vmstate_change = virtio_pci_vmstate_change,
};
-static void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev,
- uint16_t vendor, uint16_t device,
- uint16_t class_code, uint8_t pif)
+void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev)
{
uint8_t *config;
uint32_t size;
proxy->vdev = vdev;
config = proxy->pci_dev.config;
- pci_config_set_vendor_id(config, vendor);
- pci_config_set_device_id(config, device);
-
- config[0x08] = VIRTIO_PCI_ABI_VERSION;
-
- config[0x09] = pif;
- pci_config_set_class(config, class_code);
-
- config[0x2c] = vendor & 0xFF;
- config[0x2d] = (vendor >> 8) & 0xFF;
- config[0x2e] = vdev->device_id & 0xFF;
- config[0x2f] = (vdev->device_id >> 8) & 0xFF;
+ if (proxy->class_code) {
+ pci_config_set_class(config, proxy->class_code);
+ }
+ pci_set_word(config + 0x2c, pci_get_word(config + PCI_VENDOR_ID));
+ pci_set_word(config + 0x2e, vdev->device_id);
config[0x3d] = 1;
if (vdev->nvectors && !msix_init(&proxy->pci_dev, vdev->nvectors, 1, 0)) {
proxy->class_code != PCI_CLASS_STORAGE_OTHER)
proxy->class_code = PCI_CLASS_STORAGE_SCSI;
- vdev = virtio_blk_init(&pci_dev->qdev, &proxy->block);
+ vdev = virtio_blk_init(&pci_dev->qdev, &proxy->block,
+ &proxy->block_serial);
if (!vdev) {
return -1;
}
vdev->nvectors = proxy->nvectors;
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- PCI_DEVICE_ID_VIRTIO_BLOCK,
- proxy->class_code, 0x00);
+ virtio_init_pci(proxy, vdev);
/* make the actual value visible */
proxy->nvectors = vdev->nvectors;
return 0;
vdev->nvectors = proxy->nvectors == DEV_NVECTORS_UNSPECIFIED
? proxy->serial.max_virtserial_ports + 1
: proxy->nvectors;
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- PCI_DEVICE_ID_VIRTIO_CONSOLE,
- proxy->class_code, 0x00);
+ virtio_init_pci(proxy, vdev);
proxy->nvectors = vdev->nvectors;
return 0;
}
vdev = virtio_net_init(&pci_dev->qdev, &proxy->nic, &proxy->net);
vdev->nvectors = proxy->nvectors;
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- PCI_DEVICE_ID_VIRTIO_NET,
- PCI_CLASS_NETWORK_ETHERNET,
- 0x00);
+ virtio_init_pci(proxy, vdev);
/* make the actual value visible */
proxy->nvectors = vdev->nvectors;
VirtIODevice *vdev;
vdev = virtio_balloon_init(&pci_dev->qdev);
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- PCI_DEVICE_ID_VIRTIO_BALLOON,
- PCI_CLASS_MEMORY_RAM,
- 0x00);
+ if (!vdev) {
+ return -1;
+ }
+ virtio_init_pci(proxy, vdev);
return 0;
}
-#ifdef CONFIG_VIRTFS
-static int virtio_9p_init_pci(PCIDevice *pci_dev)
+static int virtio_balloon_exit_pci(PCIDevice *pci_dev)
{
VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
- VirtIODevice *vdev;
- vdev = virtio_9p_init(&pci_dev->qdev, &proxy->fsconf);
- vdev->nvectors = proxy->nvectors;
- virtio_init_pci(proxy, vdev,
- PCI_VENDOR_ID_REDHAT_QUMRANET,
- 0x1009,
- 0x2,
- 0x00);
- /* make the actual value visible */
- proxy->nvectors = vdev->nvectors;
- return 0;
+ virtio_pci_stop_ioeventfd(proxy);
+ virtio_balloon_exit(proxy->vdev);
+ return virtio_exit_pci(pci_dev);
}
-#endif
static PCIDeviceInfo virtio_info[] = {
{
.qdev.size = sizeof(VirtIOPCIProxy),
.init = virtio_blk_init_pci,
.exit = virtio_blk_exit_pci,
+ .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
+ .device_id = PCI_DEVICE_ID_VIRTIO_BLOCK,
+ .revision = VIRTIO_PCI_ABI_VERSION,
+ .class_id = PCI_CLASS_STORAGE_SCSI,
.qdev.props = (Property[]) {
DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0),
DEFINE_BLOCK_PROPERTIES(VirtIOPCIProxy, block),
+ DEFINE_PROP_STRING("serial", VirtIOPCIProxy, block_serial),
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
.init = virtio_net_init_pci,
.exit = virtio_net_exit_pci,
.romfile = "pxe-virtio.rom",
+ .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
+ .device_id = PCI_DEVICE_ID_VIRTIO_NET,
+ .revision = VIRTIO_PCI_ABI_VERSION,
+ .class_id = PCI_CLASS_NETWORK_ETHERNET,
.qdev.props = (Property[]) {
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, false),
.qdev.size = sizeof(VirtIOPCIProxy),
.init = virtio_serial_init_pci,
.exit = virtio_serial_exit_pci,
+ .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
+ .device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE,
+ .revision = VIRTIO_PCI_ABI_VERSION,
+ .class_id = PCI_CLASS_COMMUNICATION_OTHER,
.qdev.props = (Property[]) {
DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags,
VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true),
.qdev.alias = "virtio-balloon",
.qdev.size = sizeof(VirtIOPCIProxy),
.init = virtio_balloon_init_pci,
- .exit = virtio_exit_pci,
+ .exit = virtio_balloon_exit_pci,
+ .vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET,
+ .device_id = PCI_DEVICE_ID_VIRTIO_BALLOON,
+ .revision = VIRTIO_PCI_ABI_VERSION,
+ .class_id = PCI_CLASS_MEMORY_RAM,
.qdev.props = (Property[]) {
DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
DEFINE_PROP_END_OF_LIST(),
},
.qdev.reset = virtio_pci_reset,
},{
-#ifdef CONFIG_VIRTFS
- .qdev.name = "virtio-9p-pci",
- .qdev.alias = "virtio-9p",
- .qdev.size = sizeof(VirtIOPCIProxy),
- .init = virtio_9p_init_pci,
- .qdev.props = (Property[]) {
- DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
- DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
- DEFINE_PROP_STRING("mount_tag", VirtIOPCIProxy, fsconf.tag),
- DEFINE_PROP_STRING("fsdev", VirtIOPCIProxy, fsconf.fsdev_id),
- DEFINE_PROP_END_OF_LIST(),
- },
- }, {
-#endif
/* end of list */
}
};
projects / qemu.git / blobdiff