4 * Copyright IBM, Corp. 2007
5 * Copyright (c) 2009 CodeSourcery
8 * Anthony Liguori <aliguori@us.ibm.com>
9 * Paul Brook <paul@codesourcery.com>
11 * This work is licensed under the terms of the GNU GPL, version 2. See
12 * the COPYING file in the top-level directory.
14 * Contributions after 2012-01-13 are licensed under the terms of the
15 * GNU GPL, version 2 or (at your option) any later version.
18 #include "qemu/osdep.h"
20 #include "standard-headers/linux/virtio_pci.h"
21 #include "hw/virtio/virtio.h"
22 #include "hw/virtio/virtio-blk.h"
23 #include "hw/virtio/virtio-net.h"
24 #include "hw/virtio/virtio-serial.h"
25 #include "hw/virtio/virtio-scsi.h"
26 #include "hw/virtio/virtio-balloon.h"
27 #include "hw/virtio/virtio-input.h"
28 #include "hw/pci/pci.h"
29 #include "qapi/error.h"
30 #include "qemu/error-report.h"
31 #include "hw/pci/msi.h"
32 #include "hw/pci/msix.h"
33 #include "hw/loader.h"
34 #include "sysemu/kvm.h"
35 #include "sysemu/block-backend.h"
36 #include "virtio-pci.h"
37 #include "qemu/range.h"
38 #include "hw/virtio/virtio-bus.h"
39 #include "qapi/visitor.h"
41 #define VIRTIO_PCI_REGION_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_present(dev))
43 #undef VIRTIO_PCI_CONFIG
45 /* The remaining space is defined by each driver as the per-driver
46 * configuration space */
47 #define VIRTIO_PCI_CONFIG_SIZE(dev) VIRTIO_PCI_CONFIG_OFF(msix_enabled(dev))
49 static void virtio_pci_bus_new(VirtioBusState
*bus
, size_t bus_size
,
51 static void virtio_pci_reset(DeviceState
*qdev
);
54 /* DeviceState to VirtIOPCIProxy. For use off data-path. TODO: use QOM. */
55 static inline VirtIOPCIProxy
*to_virtio_pci_proxy(DeviceState
*d
)
57 return container_of(d
, VirtIOPCIProxy
, pci_dev
.qdev
);
60 /* DeviceState to VirtIOPCIProxy. Note: used on datapath,
61 * be careful and test performance if you change this.
63 static inline VirtIOPCIProxy
*to_virtio_pci_proxy_fast(DeviceState
*d
)
65 return container_of(d
, VirtIOPCIProxy
, pci_dev
.qdev
);
68 static void virtio_pci_notify(DeviceState
*d
, uint16_t vector
)
70 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy_fast(d
);
72 if (msix_enabled(&proxy
->pci_dev
))
73 msix_notify(&proxy
->pci_dev
, vector
);
75 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
76 pci_set_irq(&proxy
->pci_dev
, vdev
->isr
& 1);
80 static void virtio_pci_save_config(DeviceState
*d
, QEMUFile
*f
)
82 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
83 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
85 pci_device_save(&proxy
->pci_dev
, f
);
86 msix_save(&proxy
->pci_dev
, f
);
87 if (msix_present(&proxy
->pci_dev
))
88 qemu_put_be16(f
, vdev
->config_vector
);
91 static void virtio_pci_load_modern_queue_state(VirtIOPCIQueue
*vq
,
94 vq
->num
= qemu_get_be16(f
);
95 vq
->enabled
= qemu_get_be16(f
);
96 vq
->desc
[0] = qemu_get_be32(f
);
97 vq
->desc
[1] = qemu_get_be32(f
);
98 vq
->avail
[0] = qemu_get_be32(f
);
99 vq
->avail
[1] = qemu_get_be32(f
);
100 vq
->used
[0] = qemu_get_be32(f
);
101 vq
->used
[1] = qemu_get_be32(f
);
104 static bool virtio_pci_has_extra_state(DeviceState
*d
)
106 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
108 return proxy
->flags
& VIRTIO_PCI_FLAG_MIGRATE_EXTRA
;
111 static int get_virtio_pci_modern_state(QEMUFile
*f
, void *pv
, size_t size
)
113 VirtIOPCIProxy
*proxy
= pv
;
116 proxy
->dfselect
= qemu_get_be32(f
);
117 proxy
->gfselect
= qemu_get_be32(f
);
118 proxy
->guest_features
[0] = qemu_get_be32(f
);
119 proxy
->guest_features
[1] = qemu_get_be32(f
);
120 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; i
++) {
121 virtio_pci_load_modern_queue_state(&proxy
->vqs
[i
], f
);
127 static void virtio_pci_save_modern_queue_state(VirtIOPCIQueue
*vq
,
130 qemu_put_be16(f
, vq
->num
);
131 qemu_put_be16(f
, vq
->enabled
);
132 qemu_put_be32(f
, vq
->desc
[0]);
133 qemu_put_be32(f
, vq
->desc
[1]);
134 qemu_put_be32(f
, vq
->avail
[0]);
135 qemu_put_be32(f
, vq
->avail
[1]);
136 qemu_put_be32(f
, vq
->used
[0]);
137 qemu_put_be32(f
, vq
->used
[1]);
140 static void put_virtio_pci_modern_state(QEMUFile
*f
, void *pv
, size_t size
)
142 VirtIOPCIProxy
*proxy
= pv
;
145 qemu_put_be32(f
, proxy
->dfselect
);
146 qemu_put_be32(f
, proxy
->gfselect
);
147 qemu_put_be32(f
, proxy
->guest_features
[0]);
148 qemu_put_be32(f
, proxy
->guest_features
[1]);
149 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; i
++) {
150 virtio_pci_save_modern_queue_state(&proxy
->vqs
[i
], f
);
154 static const VMStateInfo vmstate_info_virtio_pci_modern_state
= {
155 .name
= "virtqueue_state",
156 .get
= get_virtio_pci_modern_state
,
157 .put
= put_virtio_pci_modern_state
,
160 static bool virtio_pci_modern_state_needed(void *opaque
)
162 VirtIOPCIProxy
*proxy
= opaque
;
164 return !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_MODERN
);
167 static const VMStateDescription vmstate_virtio_pci_modern_state
= {
168 .name
= "virtio_pci/modern_state",
170 .minimum_version_id
= 1,
171 .needed
= &virtio_pci_modern_state_needed
,
172 .fields
= (VMStateField
[]) {
174 .name
= "modern_state",
176 .field_exists
= NULL
,
178 .info
= &vmstate_info_virtio_pci_modern_state
,
182 VMSTATE_END_OF_LIST()
186 static const VMStateDescription vmstate_virtio_pci
= {
187 .name
= "virtio_pci",
189 .minimum_version_id
= 1,
190 .minimum_version_id_old
= 1,
191 .fields
= (VMStateField
[]) {
192 VMSTATE_END_OF_LIST()
194 .subsections
= (const VMStateDescription
*[]) {
195 &vmstate_virtio_pci_modern_state
,
200 static void virtio_pci_save_extra_state(DeviceState
*d
, QEMUFile
*f
)
202 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
204 vmstate_save_state(f
, &vmstate_virtio_pci
, proxy
, NULL
);
207 static int virtio_pci_load_extra_state(DeviceState
*d
, QEMUFile
*f
)
209 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
211 return vmstate_load_state(f
, &vmstate_virtio_pci
, proxy
, 1);
214 static void virtio_pci_save_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
216 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
217 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
219 if (msix_present(&proxy
->pci_dev
))
220 qemu_put_be16(f
, virtio_queue_vector(vdev
, n
));
223 static int virtio_pci_load_config(DeviceState
*d
, QEMUFile
*f
)
225 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
226 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
229 ret
= pci_device_load(&proxy
->pci_dev
, f
);
233 msix_unuse_all_vectors(&proxy
->pci_dev
);
234 msix_load(&proxy
->pci_dev
, f
);
235 if (msix_present(&proxy
->pci_dev
)) {
236 qemu_get_be16s(f
, &vdev
->config_vector
);
238 vdev
->config_vector
= VIRTIO_NO_VECTOR
;
240 if (vdev
->config_vector
!= VIRTIO_NO_VECTOR
) {
241 return msix_vector_use(&proxy
->pci_dev
, vdev
->config_vector
);
246 static int virtio_pci_load_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
248 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
249 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
252 if (msix_present(&proxy
->pci_dev
)) {
253 qemu_get_be16s(f
, &vector
);
255 vector
= VIRTIO_NO_VECTOR
;
257 virtio_queue_set_vector(vdev
, n
, vector
);
258 if (vector
!= VIRTIO_NO_VECTOR
) {
259 return msix_vector_use(&proxy
->pci_dev
, vector
);
265 #define QEMU_VIRTIO_PCI_QUEUE_MEM_MULT 0x1000
267 static int virtio_pci_set_host_notifier_internal(VirtIOPCIProxy
*proxy
,
268 int n
, bool assign
, bool set_handler
)
270 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
271 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
272 EventNotifier
*notifier
= virtio_queue_get_host_notifier(vq
);
273 bool legacy
= !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_LEGACY
);
274 bool modern
= !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_MODERN
);
275 bool fast_mmio
= kvm_ioeventfd_any_length_enabled();
276 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
277 MemoryRegion
*modern_mr
= &proxy
->notify
.mr
;
278 MemoryRegion
*modern_notify_mr
= &proxy
->notify_pio
.mr
;
279 MemoryRegion
*legacy_mr
= &proxy
->bar
;
280 hwaddr modern_addr
= QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
*
281 virtio_get_queue_index(vq
);
282 hwaddr legacy_addr
= VIRTIO_PCI_QUEUE_NOTIFY
;
286 r
= event_notifier_init(notifier
, 1);
288 error_report("%s: unable to init event notifier: %d",
292 virtio_queue_set_host_notifier_fd_handler(vq
, true, set_handler
);
295 memory_region_add_eventfd(modern_mr
, modern_addr
, 0,
298 memory_region_add_eventfd(modern_mr
, modern_addr
, 2,
302 memory_region_add_eventfd(modern_notify_mr
, 0, 2,
307 memory_region_add_eventfd(legacy_mr
, legacy_addr
, 2,
313 memory_region_del_eventfd(modern_mr
, modern_addr
, 0,
316 memory_region_del_eventfd(modern_mr
, modern_addr
, 2,
320 memory_region_del_eventfd(modern_notify_mr
, 0, 2,
325 memory_region_del_eventfd(legacy_mr
, legacy_addr
, 2,
328 virtio_queue_set_host_notifier_fd_handler(vq
, false, false);
329 event_notifier_cleanup(notifier
);
334 static void virtio_pci_start_ioeventfd(VirtIOPCIProxy
*proxy
)
336 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
339 if (!(proxy
->flags
& VIRTIO_PCI_FLAG_USE_IOEVENTFD
) ||
340 proxy
->ioeventfd_disabled
||
341 proxy
->ioeventfd_started
) {
345 for (n
= 0; n
< VIRTIO_QUEUE_MAX
; n
++) {
346 if (!virtio_queue_get_num(vdev
, n
)) {
350 r
= virtio_pci_set_host_notifier_internal(proxy
, n
, true, true);
355 proxy
->ioeventfd_started
= true;
360 if (!virtio_queue_get_num(vdev
, n
)) {
364 r
= virtio_pci_set_host_notifier_internal(proxy
, n
, false, false);
367 proxy
->ioeventfd_started
= false;
368 error_report("%s: failed. Fallback to a userspace (slower).", __func__
);
371 static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy
*proxy
)
373 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
377 if (!proxy
->ioeventfd_started
) {
381 for (n
= 0; n
< VIRTIO_QUEUE_MAX
; n
++) {
382 if (!virtio_queue_get_num(vdev
, n
)) {
386 r
= virtio_pci_set_host_notifier_internal(proxy
, n
, false, false);
389 proxy
->ioeventfd_started
= false;
392 static void virtio_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
)
394 VirtIOPCIProxy
*proxy
= opaque
;
395 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
399 case VIRTIO_PCI_GUEST_FEATURES
:
400 /* Guest does not negotiate properly? We have to assume nothing. */
401 if (val
& (1 << VIRTIO_F_BAD_FEATURE
)) {
402 val
= virtio_bus_get_vdev_bad_features(&proxy
->bus
);
404 virtio_set_features(vdev
, val
);
406 case VIRTIO_PCI_QUEUE_PFN
:
407 pa
= (hwaddr
)val
<< VIRTIO_PCI_QUEUE_ADDR_SHIFT
;
409 virtio_pci_reset(DEVICE(proxy
));
412 virtio_queue_set_addr(vdev
, vdev
->queue_sel
, pa
);
414 case VIRTIO_PCI_QUEUE_SEL
:
415 if (val
< VIRTIO_QUEUE_MAX
)
416 vdev
->queue_sel
= val
;
418 case VIRTIO_PCI_QUEUE_NOTIFY
:
419 if (val
< VIRTIO_QUEUE_MAX
) {
420 virtio_queue_notify(vdev
, val
);
423 case VIRTIO_PCI_STATUS
:
424 if (!(val
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
425 virtio_pci_stop_ioeventfd(proxy
);
428 virtio_set_status(vdev
, val
& 0xFF);
430 if (val
& VIRTIO_CONFIG_S_DRIVER_OK
) {
431 virtio_pci_start_ioeventfd(proxy
);
434 if (vdev
->status
== 0) {
435 virtio_pci_reset(DEVICE(proxy
));
438 /* Linux before 2.6.34 drives the device without enabling
439 the PCI device bus master bit. Enable it automatically
440 for the guest. This is a PCI spec violation but so is
441 initiating DMA with bus master bit clear. */
442 if (val
== (VIRTIO_CONFIG_S_ACKNOWLEDGE
| VIRTIO_CONFIG_S_DRIVER
)) {
443 pci_default_write_config(&proxy
->pci_dev
, PCI_COMMAND
,
444 proxy
->pci_dev
.config
[PCI_COMMAND
] |
445 PCI_COMMAND_MASTER
, 1);
448 case VIRTIO_MSI_CONFIG_VECTOR
:
449 msix_vector_unuse(&proxy
->pci_dev
, vdev
->config_vector
);
450 /* Make it possible for guest to discover an error took place. */
451 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0)
452 val
= VIRTIO_NO_VECTOR
;
453 vdev
->config_vector
= val
;
455 case VIRTIO_MSI_QUEUE_VECTOR
:
456 msix_vector_unuse(&proxy
->pci_dev
,
457 virtio_queue_vector(vdev
, vdev
->queue_sel
));
458 /* Make it possible for guest to discover an error took place. */
459 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0)
460 val
= VIRTIO_NO_VECTOR
;
461 virtio_queue_set_vector(vdev
, vdev
->queue_sel
, val
);
464 error_report("%s: unexpected address 0x%x value 0x%x",
465 __func__
, addr
, val
);
470 static uint32_t virtio_ioport_read(VirtIOPCIProxy
*proxy
, uint32_t addr
)
472 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
473 uint32_t ret
= 0xFFFFFFFF;
476 case VIRTIO_PCI_HOST_FEATURES
:
477 ret
= vdev
->host_features
;
479 case VIRTIO_PCI_GUEST_FEATURES
:
480 ret
= vdev
->guest_features
;
482 case VIRTIO_PCI_QUEUE_PFN
:
483 ret
= virtio_queue_get_addr(vdev
, vdev
->queue_sel
)
484 >> VIRTIO_PCI_QUEUE_ADDR_SHIFT
;
486 case VIRTIO_PCI_QUEUE_NUM
:
487 ret
= virtio_queue_get_num(vdev
, vdev
->queue_sel
);
489 case VIRTIO_PCI_QUEUE_SEL
:
490 ret
= vdev
->queue_sel
;
492 case VIRTIO_PCI_STATUS
:
496 /* reading from the ISR also clears it. */
499 pci_irq_deassert(&proxy
->pci_dev
);
501 case VIRTIO_MSI_CONFIG_VECTOR
:
502 ret
= vdev
->config_vector
;
504 case VIRTIO_MSI_QUEUE_VECTOR
:
505 ret
= virtio_queue_vector(vdev
, vdev
->queue_sel
);
514 static uint64_t virtio_pci_config_read(void *opaque
, hwaddr addr
,
517 VirtIOPCIProxy
*proxy
= opaque
;
518 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
519 uint32_t config
= VIRTIO_PCI_CONFIG_SIZE(&proxy
->pci_dev
);
522 return virtio_ioport_read(proxy
, addr
);
528 val
= virtio_config_readb(vdev
, addr
);
531 val
= virtio_config_readw(vdev
, addr
);
532 if (virtio_is_big_endian(vdev
)) {
537 val
= virtio_config_readl(vdev
, addr
);
538 if (virtio_is_big_endian(vdev
)) {
546 static void virtio_pci_config_write(void *opaque
, hwaddr addr
,
547 uint64_t val
, unsigned size
)
549 VirtIOPCIProxy
*proxy
= opaque
;
550 uint32_t config
= VIRTIO_PCI_CONFIG_SIZE(&proxy
->pci_dev
);
551 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
553 virtio_ioport_write(proxy
, addr
, val
);
558 * Virtio-PCI is odd. Ioports are LE but config space is target native
563 virtio_config_writeb(vdev
, addr
, val
);
566 if (virtio_is_big_endian(vdev
)) {
569 virtio_config_writew(vdev
, addr
, val
);
572 if (virtio_is_big_endian(vdev
)) {
575 virtio_config_writel(vdev
, addr
, val
);
580 static const MemoryRegionOps virtio_pci_config_ops
= {
581 .read
= virtio_pci_config_read
,
582 .write
= virtio_pci_config_write
,
584 .min_access_size
= 1,
585 .max_access_size
= 4,
587 .endianness
= DEVICE_LITTLE_ENDIAN
,
590 /* Below are generic functions to do memcpy from/to an address space,
591 * without byteswaps, with input validation.
593 * As regular address_space_* APIs all do some kind of byteswap at least for
594 * some host/target combinations, we are forced to explicitly convert to a
595 * known-endianness integer value.
596 * It doesn't really matter which endian format to go through, so the code
597 * below selects the endian that causes the least amount of work on the given
600 * Note: host pointer must be aligned.
603 void virtio_address_space_write(AddressSpace
*as
, hwaddr addr
,
604 const uint8_t *buf
, int len
)
608 /* address_space_* APIs assume an aligned address.
609 * As address is under guest control, handle illegal values.
613 /* Make sure caller aligned buf properly */
614 assert(!(((uintptr_t)buf
) & (len
- 1)));
618 val
= pci_get_byte(buf
);
619 address_space_stb(as
, addr
, val
, MEMTXATTRS_UNSPECIFIED
, NULL
);
622 val
= pci_get_word(buf
);
623 address_space_stw_le(as
, addr
, val
, MEMTXATTRS_UNSPECIFIED
, NULL
);
626 val
= pci_get_long(buf
);
627 address_space_stl_le(as
, addr
, val
, MEMTXATTRS_UNSPECIFIED
, NULL
);
630 /* As length is under guest control, handle illegal values. */
636 virtio_address_space_read(AddressSpace
*as
, hwaddr addr
, uint8_t *buf
, int len
)
640 /* address_space_* APIs assume an aligned address.
641 * As address is under guest control, handle illegal values.
645 /* Make sure caller aligned buf properly */
646 assert(!(((uintptr_t)buf
) & (len
- 1)));
650 val
= address_space_ldub(as
, addr
, MEMTXATTRS_UNSPECIFIED
, NULL
);
651 pci_set_byte(buf
, val
);
654 val
= address_space_lduw_le(as
, addr
, MEMTXATTRS_UNSPECIFIED
, NULL
);
655 pci_set_word(buf
, val
);
658 val
= address_space_ldl_le(as
, addr
, MEMTXATTRS_UNSPECIFIED
, NULL
);
659 pci_set_long(buf
, val
);
662 /* As length is under guest control, handle illegal values. */
667 static void virtio_write_config(PCIDevice
*pci_dev
, uint32_t address
,
668 uint32_t val
, int len
)
670 VirtIOPCIProxy
*proxy
= DO_UPCAST(VirtIOPCIProxy
, pci_dev
, pci_dev
);
671 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
672 struct virtio_pci_cfg_cap
*cfg
;
674 pci_default_write_config(pci_dev
, address
, val
, len
);
676 if (range_covers_byte(address
, len
, PCI_COMMAND
) &&
677 !(pci_dev
->config
[PCI_COMMAND
] & PCI_COMMAND_MASTER
)) {
678 virtio_pci_stop_ioeventfd(proxy
);
679 virtio_set_status(vdev
, vdev
->status
& ~VIRTIO_CONFIG_S_DRIVER_OK
);
682 if (proxy
->config_cap
&&
683 ranges_overlap(address
, len
, proxy
->config_cap
+ offsetof(struct virtio_pci_cfg_cap
,
685 sizeof cfg
->pci_cfg_data
)) {
689 cfg
= (void *)(proxy
->pci_dev
.config
+ proxy
->config_cap
);
690 off
= le32_to_cpu(cfg
->cap
.offset
);
691 len
= le32_to_cpu(cfg
->cap
.length
);
693 if (len
== 1 || len
== 2 || len
== 4) {
694 assert(len
<= sizeof cfg
->pci_cfg_data
);
695 virtio_address_space_write(&proxy
->modern_as
, off
,
696 cfg
->pci_cfg_data
, len
);
701 static uint32_t virtio_read_config(PCIDevice
*pci_dev
,
702 uint32_t address
, int len
)
704 VirtIOPCIProxy
*proxy
= DO_UPCAST(VirtIOPCIProxy
, pci_dev
, pci_dev
);
705 struct virtio_pci_cfg_cap
*cfg
;
707 if (proxy
->config_cap
&&
708 ranges_overlap(address
, len
, proxy
->config_cap
+ offsetof(struct virtio_pci_cfg_cap
,
710 sizeof cfg
->pci_cfg_data
)) {
714 cfg
= (void *)(proxy
->pci_dev
.config
+ proxy
->config_cap
);
715 off
= le32_to_cpu(cfg
->cap
.offset
);
716 len
= le32_to_cpu(cfg
->cap
.length
);
718 if (len
== 1 || len
== 2 || len
== 4) {
719 assert(len
<= sizeof cfg
->pci_cfg_data
);
720 virtio_address_space_read(&proxy
->modern_as
, off
,
721 cfg
->pci_cfg_data
, len
);
725 return pci_default_read_config(pci_dev
, address
, len
);
728 static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy
*proxy
,
729 unsigned int queue_no
,
733 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
736 if (irqfd
->users
== 0) {
737 ret
= kvm_irqchip_add_msi_route(kvm_state
, msg
, &proxy
->pci_dev
);
747 static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy
*proxy
,
750 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
751 if (--irqfd
->users
== 0) {
752 kvm_irqchip_release_virq(kvm_state
, irqfd
->virq
);
756 static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy
*proxy
,
757 unsigned int queue_no
,
760 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
761 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
762 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
763 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
765 ret
= kvm_irqchip_add_irqfd_notifier_gsi(kvm_state
, n
, NULL
, irqfd
->virq
);
769 static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy
*proxy
,
770 unsigned int queue_no
,
773 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
774 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
775 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
776 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
779 ret
= kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state
, n
, irqfd
->virq
);
783 static int kvm_virtio_pci_vector_use(VirtIOPCIProxy
*proxy
, int nvqs
)
785 PCIDevice
*dev
= &proxy
->pci_dev
;
786 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
787 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
792 for (queue_no
= 0; queue_no
< nvqs
; queue_no
++) {
793 if (!virtio_queue_get_num(vdev
, queue_no
)) {
796 vector
= virtio_queue_vector(vdev
, queue_no
);
797 if (vector
>= msix_nr_vectors_allocated(dev
)) {
800 msg
= msix_get_message(dev
, vector
);
801 ret
= kvm_virtio_pci_vq_vector_use(proxy
, queue_no
, vector
, msg
);
805 /* If guest supports masking, set up irqfd now.
806 * Otherwise, delay until unmasked in the frontend.
808 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
809 ret
= kvm_virtio_pci_irqfd_use(proxy
, queue_no
, vector
);
811 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
819 while (--queue_no
>= 0) {
820 vector
= virtio_queue_vector(vdev
, queue_no
);
821 if (vector
>= msix_nr_vectors_allocated(dev
)) {
824 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
825 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
827 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
832 static void kvm_virtio_pci_vector_release(VirtIOPCIProxy
*proxy
, int nvqs
)
834 PCIDevice
*dev
= &proxy
->pci_dev
;
835 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
838 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
840 for (queue_no
= 0; queue_no
< nvqs
; queue_no
++) {
841 if (!virtio_queue_get_num(vdev
, queue_no
)) {
844 vector
= virtio_queue_vector(vdev
, queue_no
);
845 if (vector
>= msix_nr_vectors_allocated(dev
)) {
848 /* If guest supports masking, clean up irqfd now.
849 * Otherwise, it was cleaned when masked in the frontend.
851 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
852 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
854 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
858 static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy
*proxy
,
859 unsigned int queue_no
,
863 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
864 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
865 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
866 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
870 if (proxy
->vector_irqfd
) {
871 irqfd
= &proxy
->vector_irqfd
[vector
];
872 if (irqfd
->msg
.data
!= msg
.data
|| irqfd
->msg
.address
!= msg
.address
) {
873 ret
= kvm_irqchip_update_msi_route(kvm_state
, irqfd
->virq
, msg
,
881 /* If guest supports masking, irqfd is already setup, unmask it.
882 * Otherwise, set it up now.
884 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
885 k
->guest_notifier_mask(vdev
, queue_no
, false);
886 /* Test after unmasking to avoid losing events. */
887 if (k
->guest_notifier_pending
&&
888 k
->guest_notifier_pending(vdev
, queue_no
)) {
889 event_notifier_set(n
);
892 ret
= kvm_virtio_pci_irqfd_use(proxy
, queue_no
, vector
);
897 static void virtio_pci_vq_vector_mask(VirtIOPCIProxy
*proxy
,
898 unsigned int queue_no
,
901 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
902 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
904 /* If guest supports masking, keep irqfd but mask it.
905 * Otherwise, clean it up now.
907 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
908 k
->guest_notifier_mask(vdev
, queue_no
, true);
910 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
914 static int virtio_pci_vector_unmask(PCIDevice
*dev
, unsigned vector
,
917 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
918 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
919 VirtQueue
*vq
= virtio_vector_first_queue(vdev
, vector
);
920 int ret
, index
, unmasked
= 0;
923 index
= virtio_get_queue_index(vq
);
924 if (!virtio_queue_get_num(vdev
, index
)) {
927 if (index
< proxy
->nvqs_with_notifiers
) {
928 ret
= virtio_pci_vq_vector_unmask(proxy
, index
, vector
, msg
);
934 vq
= virtio_vector_next_queue(vq
);
940 vq
= virtio_vector_first_queue(vdev
, vector
);
941 while (vq
&& unmasked
>= 0) {
942 index
= virtio_get_queue_index(vq
);
943 if (index
< proxy
->nvqs_with_notifiers
) {
944 virtio_pci_vq_vector_mask(proxy
, index
, vector
);
947 vq
= virtio_vector_next_queue(vq
);
952 static void virtio_pci_vector_mask(PCIDevice
*dev
, unsigned vector
)
954 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
955 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
956 VirtQueue
*vq
= virtio_vector_first_queue(vdev
, vector
);
960 index
= virtio_get_queue_index(vq
);
961 if (!virtio_queue_get_num(vdev
, index
)) {
964 if (index
< proxy
->nvqs_with_notifiers
) {
965 virtio_pci_vq_vector_mask(proxy
, index
, vector
);
967 vq
= virtio_vector_next_queue(vq
);
971 static void virtio_pci_vector_poll(PCIDevice
*dev
,
972 unsigned int vector_start
,
973 unsigned int vector_end
)
975 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
976 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
977 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
980 EventNotifier
*notifier
;
983 for (queue_no
= 0; queue_no
< proxy
->nvqs_with_notifiers
; queue_no
++) {
984 if (!virtio_queue_get_num(vdev
, queue_no
)) {
987 vector
= virtio_queue_vector(vdev
, queue_no
);
988 if (vector
< vector_start
|| vector
>= vector_end
||
989 !msix_is_masked(dev
, vector
)) {
992 vq
= virtio_get_queue(vdev
, queue_no
);
993 notifier
= virtio_queue_get_guest_notifier(vq
);
994 if (k
->guest_notifier_pending
) {
995 if (k
->guest_notifier_pending(vdev
, queue_no
)) {
996 msix_set_pending(dev
, vector
);
998 } else if (event_notifier_test_and_clear(notifier
)) {
999 msix_set_pending(dev
, vector
);
1004 static int virtio_pci_set_guest_notifier(DeviceState
*d
, int n
, bool assign
,
1007 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1008 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1009 VirtioDeviceClass
*vdc
= VIRTIO_DEVICE_GET_CLASS(vdev
);
1010 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
1011 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
1014 int r
= event_notifier_init(notifier
, 0);
1018 virtio_queue_set_guest_notifier_fd_handler(vq
, true, with_irqfd
);
1020 virtio_queue_set_guest_notifier_fd_handler(vq
, false, with_irqfd
);
1021 event_notifier_cleanup(notifier
);
1024 if (!msix_enabled(&proxy
->pci_dev
) &&
1025 vdev
->use_guest_notifier_mask
&&
1026 vdc
->guest_notifier_mask
) {
1027 vdc
->guest_notifier_mask(vdev
, n
, !assign
);
1033 static bool virtio_pci_query_guest_notifiers(DeviceState
*d
)
1035 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1036 return msix_enabled(&proxy
->pci_dev
);
1039 static int virtio_pci_set_guest_notifiers(DeviceState
*d
, int nvqs
, bool assign
)
1041 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1042 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1043 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
1045 bool with_irqfd
= msix_enabled(&proxy
->pci_dev
) &&
1046 kvm_msi_via_irqfd_enabled();
1048 nvqs
= MIN(nvqs
, VIRTIO_QUEUE_MAX
);
1050 /* When deassigning, pass a consistent nvqs value
1051 * to avoid leaking notifiers.
1053 assert(assign
|| nvqs
== proxy
->nvqs_with_notifiers
);
1055 proxy
->nvqs_with_notifiers
= nvqs
;
1057 /* Must unset vector notifier while guest notifier is still assigned */
1058 if ((proxy
->vector_irqfd
|| k
->guest_notifier_mask
) && !assign
) {
1059 msix_unset_vector_notifiers(&proxy
->pci_dev
);
1060 if (proxy
->vector_irqfd
) {
1061 kvm_virtio_pci_vector_release(proxy
, nvqs
);
1062 g_free(proxy
->vector_irqfd
);
1063 proxy
->vector_irqfd
= NULL
;
1067 for (n
= 0; n
< nvqs
; n
++) {
1068 if (!virtio_queue_get_num(vdev
, n
)) {
1072 r
= virtio_pci_set_guest_notifier(d
, n
, assign
, with_irqfd
);
1078 /* Must set vector notifier after guest notifier has been assigned */
1079 if ((with_irqfd
|| k
->guest_notifier_mask
) && assign
) {
1081 proxy
->vector_irqfd
=
1082 g_malloc0(sizeof(*proxy
->vector_irqfd
) *
1083 msix_nr_vectors_allocated(&proxy
->pci_dev
));
1084 r
= kvm_virtio_pci_vector_use(proxy
, nvqs
);
1089 r
= msix_set_vector_notifiers(&proxy
->pci_dev
,
1090 virtio_pci_vector_unmask
,
1091 virtio_pci_vector_mask
,
1092 virtio_pci_vector_poll
);
1094 goto notifiers_error
;
1103 kvm_virtio_pci_vector_release(proxy
, nvqs
);
1107 /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */
1110 virtio_pci_set_guest_notifier(d
, n
, !assign
, with_irqfd
);
1115 static int virtio_pci_set_host_notifier(DeviceState
*d
, int n
, bool assign
)
1117 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1119 /* Stop using ioeventfd for virtqueue kick if the device starts using host
1120 * notifiers. This makes it easy to avoid stepping on each others' toes.
1122 proxy
->ioeventfd_disabled
= assign
;
1124 virtio_pci_stop_ioeventfd(proxy
);
1126 /* We don't need to start here: it's not needed because backend
1127 * currently only stops on status change away from ok,
1128 * reset, vmstop and such. If we do add code to start here,
1129 * need to check vmstate, device state etc. */
1130 return virtio_pci_set_host_notifier_internal(proxy
, n
, assign
, false);
1133 static void virtio_pci_vmstate_change(DeviceState
*d
, bool running
)
1135 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1136 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1139 /* Old QEMU versions did not set bus master enable on status write.
1140 * Detect DRIVER set and enable it.
1142 if ((proxy
->flags
& VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION
) &&
1143 (vdev
->status
& VIRTIO_CONFIG_S_DRIVER
) &&
1144 !(proxy
->pci_dev
.config
[PCI_COMMAND
] & PCI_COMMAND_MASTER
)) {
1145 pci_default_write_config(&proxy
->pci_dev
, PCI_COMMAND
,
1146 proxy
->pci_dev
.config
[PCI_COMMAND
] |
1147 PCI_COMMAND_MASTER
, 1);
1149 virtio_pci_start_ioeventfd(proxy
);
1151 virtio_pci_stop_ioeventfd(proxy
);
1155 #ifdef CONFIG_VIRTFS
1156 static void virtio_9p_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1158 V9fsPCIState
*dev
= VIRTIO_9P_PCI(vpci_dev
);
1159 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1161 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
1162 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1165 static Property virtio_9p_pci_properties
[] = {
1166 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
1167 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
1168 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
1169 DEFINE_PROP_END_OF_LIST(),
1172 static void virtio_9p_pci_class_init(ObjectClass
*klass
, void *data
)
1174 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1175 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
1176 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
1178 k
->realize
= virtio_9p_pci_realize
;
1179 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1180 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_9P
;
1181 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1182 pcidev_k
->class_id
= 0x2;
1183 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1184 dc
->props
= virtio_9p_pci_properties
;
1187 static void virtio_9p_pci_instance_init(Object
*obj
)
1189 V9fsPCIState
*dev
= VIRTIO_9P_PCI(obj
);
1191 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1195 static const TypeInfo virtio_9p_pci_info
= {
1196 .name
= TYPE_VIRTIO_9P_PCI
,
1197 .parent
= TYPE_VIRTIO_PCI
,
1198 .instance_size
= sizeof(V9fsPCIState
),
1199 .instance_init
= virtio_9p_pci_instance_init
,
1200 .class_init
= virtio_9p_pci_class_init
,
1202 #endif /* CONFIG_VIRTFS */
1205 * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
1208 static int virtio_pci_query_nvectors(DeviceState
*d
)
1210 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1212 return proxy
->nvectors
;
1215 static int virtio_pci_add_mem_cap(VirtIOPCIProxy
*proxy
,
1216 struct virtio_pci_cap
*cap
)
1218 PCIDevice
*dev
= &proxy
->pci_dev
;
1221 offset
= pci_add_capability(dev
, PCI_CAP_ID_VNDR
, 0, cap
->cap_len
);
1224 assert(cap
->cap_len
>= sizeof *cap
);
1225 memcpy(dev
->config
+ offset
+ PCI_CAP_FLAGS
, &cap
->cap_len
,
1226 cap
->cap_len
- PCI_CAP_FLAGS
);
1231 static uint64_t virtio_pci_common_read(void *opaque
, hwaddr addr
,
1234 VirtIOPCIProxy
*proxy
= opaque
;
1235 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1240 case VIRTIO_PCI_COMMON_DFSELECT
:
1241 val
= proxy
->dfselect
;
1243 case VIRTIO_PCI_COMMON_DF
:
1244 if (proxy
->dfselect
<= 1) {
1245 val
= (vdev
->host_features
& ~VIRTIO_LEGACY_FEATURES
) >>
1246 (32 * proxy
->dfselect
);
1249 case VIRTIO_PCI_COMMON_GFSELECT
:
1250 val
= proxy
->gfselect
;
1252 case VIRTIO_PCI_COMMON_GF
:
1253 if (proxy
->gfselect
< ARRAY_SIZE(proxy
->guest_features
)) {
1254 val
= proxy
->guest_features
[proxy
->gfselect
];
1257 case VIRTIO_PCI_COMMON_MSIX
:
1258 val
= vdev
->config_vector
;
1260 case VIRTIO_PCI_COMMON_NUMQ
:
1261 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; ++i
) {
1262 if (virtio_queue_get_num(vdev
, i
)) {
1267 case VIRTIO_PCI_COMMON_STATUS
:
1270 case VIRTIO_PCI_COMMON_CFGGENERATION
:
1271 val
= vdev
->generation
;
1273 case VIRTIO_PCI_COMMON_Q_SELECT
:
1274 val
= vdev
->queue_sel
;
1276 case VIRTIO_PCI_COMMON_Q_SIZE
:
1277 val
= virtio_queue_get_num(vdev
, vdev
->queue_sel
);
1279 case VIRTIO_PCI_COMMON_Q_MSIX
:
1280 val
= virtio_queue_vector(vdev
, vdev
->queue_sel
);
1282 case VIRTIO_PCI_COMMON_Q_ENABLE
:
1283 val
= proxy
->vqs
[vdev
->queue_sel
].enabled
;
1285 case VIRTIO_PCI_COMMON_Q_NOFF
:
1286 /* Simply map queues in order */
1287 val
= vdev
->queue_sel
;
1289 case VIRTIO_PCI_COMMON_Q_DESCLO
:
1290 val
= proxy
->vqs
[vdev
->queue_sel
].desc
[0];
1292 case VIRTIO_PCI_COMMON_Q_DESCHI
:
1293 val
= proxy
->vqs
[vdev
->queue_sel
].desc
[1];
1295 case VIRTIO_PCI_COMMON_Q_AVAILLO
:
1296 val
= proxy
->vqs
[vdev
->queue_sel
].avail
[0];
1298 case VIRTIO_PCI_COMMON_Q_AVAILHI
:
1299 val
= proxy
->vqs
[vdev
->queue_sel
].avail
[1];
1301 case VIRTIO_PCI_COMMON_Q_USEDLO
:
1302 val
= proxy
->vqs
[vdev
->queue_sel
].used
[0];
1304 case VIRTIO_PCI_COMMON_Q_USEDHI
:
1305 val
= proxy
->vqs
[vdev
->queue_sel
].used
[1];
1314 static void virtio_pci_common_write(void *opaque
, hwaddr addr
,
1315 uint64_t val
, unsigned size
)
1317 VirtIOPCIProxy
*proxy
= opaque
;
1318 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1321 case VIRTIO_PCI_COMMON_DFSELECT
:
1322 proxy
->dfselect
= val
;
1324 case VIRTIO_PCI_COMMON_GFSELECT
:
1325 proxy
->gfselect
= val
;
1327 case VIRTIO_PCI_COMMON_GF
:
1328 if (proxy
->gfselect
< ARRAY_SIZE(proxy
->guest_features
)) {
1329 proxy
->guest_features
[proxy
->gfselect
] = val
;
1330 virtio_set_features(vdev
,
1331 (((uint64_t)proxy
->guest_features
[1]) << 32) |
1332 proxy
->guest_features
[0]);
1335 case VIRTIO_PCI_COMMON_MSIX
:
1336 msix_vector_unuse(&proxy
->pci_dev
, vdev
->config_vector
);
1337 /* Make it possible for guest to discover an error took place. */
1338 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0) {
1339 val
= VIRTIO_NO_VECTOR
;
1341 vdev
->config_vector
= val
;
1343 case VIRTIO_PCI_COMMON_STATUS
:
1344 if (!(val
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
1345 virtio_pci_stop_ioeventfd(proxy
);
1348 virtio_set_status(vdev
, val
& 0xFF);
1350 if (val
& VIRTIO_CONFIG_S_DRIVER_OK
) {
1351 virtio_pci_start_ioeventfd(proxy
);
1354 if (vdev
->status
== 0) {
1355 virtio_pci_reset(DEVICE(proxy
));
1359 case VIRTIO_PCI_COMMON_Q_SELECT
:
1360 if (val
< VIRTIO_QUEUE_MAX
) {
1361 vdev
->queue_sel
= val
;
1364 case VIRTIO_PCI_COMMON_Q_SIZE
:
1365 proxy
->vqs
[vdev
->queue_sel
].num
= val
;
1367 case VIRTIO_PCI_COMMON_Q_MSIX
:
1368 msix_vector_unuse(&proxy
->pci_dev
,
1369 virtio_queue_vector(vdev
, vdev
->queue_sel
));
1370 /* Make it possible for guest to discover an error took place. */
1371 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0) {
1372 val
= VIRTIO_NO_VECTOR
;
1374 virtio_queue_set_vector(vdev
, vdev
->queue_sel
, val
);
1376 case VIRTIO_PCI_COMMON_Q_ENABLE
:
1377 /* TODO: need a way to put num back on reset. */
1378 virtio_queue_set_num(vdev
, vdev
->queue_sel
,
1379 proxy
->vqs
[vdev
->queue_sel
].num
);
1380 virtio_queue_set_rings(vdev
, vdev
->queue_sel
,
1381 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].desc
[1]) << 32 |
1382 proxy
->vqs
[vdev
->queue_sel
].desc
[0],
1383 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].avail
[1]) << 32 |
1384 proxy
->vqs
[vdev
->queue_sel
].avail
[0],
1385 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].used
[1]) << 32 |
1386 proxy
->vqs
[vdev
->queue_sel
].used
[0]);
1387 proxy
->vqs
[vdev
->queue_sel
].enabled
= 1;
1389 case VIRTIO_PCI_COMMON_Q_DESCLO
:
1390 proxy
->vqs
[vdev
->queue_sel
].desc
[0] = val
;
1392 case VIRTIO_PCI_COMMON_Q_DESCHI
:
1393 proxy
->vqs
[vdev
->queue_sel
].desc
[1] = val
;
1395 case VIRTIO_PCI_COMMON_Q_AVAILLO
:
1396 proxy
->vqs
[vdev
->queue_sel
].avail
[0] = val
;
1398 case VIRTIO_PCI_COMMON_Q_AVAILHI
:
1399 proxy
->vqs
[vdev
->queue_sel
].avail
[1] = val
;
1401 case VIRTIO_PCI_COMMON_Q_USEDLO
:
1402 proxy
->vqs
[vdev
->queue_sel
].used
[0] = val
;
1404 case VIRTIO_PCI_COMMON_Q_USEDHI
:
1405 proxy
->vqs
[vdev
->queue_sel
].used
[1] = val
;
1413 static uint64_t virtio_pci_notify_read(void *opaque
, hwaddr addr
,
1419 static void virtio_pci_notify_write(void *opaque
, hwaddr addr
,
1420 uint64_t val
, unsigned size
)
1422 VirtIODevice
*vdev
= opaque
;
1423 unsigned queue
= addr
/ QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
;
1425 if (queue
< VIRTIO_QUEUE_MAX
) {
1426 virtio_queue_notify(vdev
, queue
);
1430 static void virtio_pci_notify_write_pio(void *opaque
, hwaddr addr
,
1431 uint64_t val
, unsigned size
)
1433 VirtIODevice
*vdev
= opaque
;
1434 unsigned queue
= val
;
1436 if (queue
< VIRTIO_QUEUE_MAX
) {
1437 virtio_queue_notify(vdev
, queue
);
1441 static uint64_t virtio_pci_isr_read(void *opaque
, hwaddr addr
,
1444 VirtIOPCIProxy
*proxy
= opaque
;
1445 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1446 uint64_t val
= vdev
->isr
;
1449 pci_irq_deassert(&proxy
->pci_dev
);
1454 static void virtio_pci_isr_write(void *opaque
, hwaddr addr
,
1455 uint64_t val
, unsigned size
)
1459 static uint64_t virtio_pci_device_read(void *opaque
, hwaddr addr
,
1462 VirtIODevice
*vdev
= opaque
;
1467 val
= virtio_config_modern_readb(vdev
, addr
);
1470 val
= virtio_config_modern_readw(vdev
, addr
);
1473 val
= virtio_config_modern_readl(vdev
, addr
);
1479 static void virtio_pci_device_write(void *opaque
, hwaddr addr
,
1480 uint64_t val
, unsigned size
)
1482 VirtIODevice
*vdev
= opaque
;
1485 virtio_config_modern_writeb(vdev
, addr
, val
);
1488 virtio_config_modern_writew(vdev
, addr
, val
);
1491 virtio_config_modern_writel(vdev
, addr
, val
);
1496 static void virtio_pci_modern_regions_init(VirtIOPCIProxy
*proxy
)
1498 static const MemoryRegionOps common_ops
= {
1499 .read
= virtio_pci_common_read
,
1500 .write
= virtio_pci_common_write
,
1502 .min_access_size
= 1,
1503 .max_access_size
= 4,
1505 .endianness
= DEVICE_LITTLE_ENDIAN
,
1507 static const MemoryRegionOps isr_ops
= {
1508 .read
= virtio_pci_isr_read
,
1509 .write
= virtio_pci_isr_write
,
1511 .min_access_size
= 1,
1512 .max_access_size
= 4,
1514 .endianness
= DEVICE_LITTLE_ENDIAN
,
1516 static const MemoryRegionOps device_ops
= {
1517 .read
= virtio_pci_device_read
,
1518 .write
= virtio_pci_device_write
,
1520 .min_access_size
= 1,
1521 .max_access_size
= 4,
1523 .endianness
= DEVICE_LITTLE_ENDIAN
,
1525 static const MemoryRegionOps notify_ops
= {
1526 .read
= virtio_pci_notify_read
,
1527 .write
= virtio_pci_notify_write
,
1529 .min_access_size
= 1,
1530 .max_access_size
= 4,
1532 .endianness
= DEVICE_LITTLE_ENDIAN
,
1534 static const MemoryRegionOps notify_pio_ops
= {
1535 .read
= virtio_pci_notify_read
,
1536 .write
= virtio_pci_notify_write_pio
,
1538 .min_access_size
= 1,
1539 .max_access_size
= 4,
1541 .endianness
= DEVICE_LITTLE_ENDIAN
,
1545 memory_region_init_io(&proxy
->common
.mr
, OBJECT(proxy
),
1548 "virtio-pci-common",
1549 proxy
->common
.size
);
1551 memory_region_init_io(&proxy
->isr
.mr
, OBJECT(proxy
),
1557 memory_region_init_io(&proxy
->device
.mr
, OBJECT(proxy
),
1559 virtio_bus_get_device(&proxy
->bus
),
1560 "virtio-pci-device",
1561 proxy
->device
.size
);
1563 memory_region_init_io(&proxy
->notify
.mr
, OBJECT(proxy
),
1565 virtio_bus_get_device(&proxy
->bus
),
1566 "virtio-pci-notify",
1567 proxy
->notify
.size
);
1569 memory_region_init_io(&proxy
->notify_pio
.mr
, OBJECT(proxy
),
1571 virtio_bus_get_device(&proxy
->bus
),
1572 "virtio-pci-notify-pio",
1573 proxy
->notify
.size
);
1576 static void virtio_pci_modern_region_map(VirtIOPCIProxy
*proxy
,
1577 VirtIOPCIRegion
*region
,
1578 struct virtio_pci_cap
*cap
,
1582 memory_region_add_subregion(mr
, region
->offset
, ®ion
->mr
);
1584 cap
->cfg_type
= region
->type
;
1586 cap
->offset
= cpu_to_le32(region
->offset
);
1587 cap
->length
= cpu_to_le32(region
->size
);
1588 virtio_pci_add_mem_cap(proxy
, cap
);
1592 static void virtio_pci_modern_mem_region_map(VirtIOPCIProxy
*proxy
,
1593 VirtIOPCIRegion
*region
,
1594 struct virtio_pci_cap
*cap
)
1596 virtio_pci_modern_region_map(proxy
, region
, cap
,
1597 &proxy
->modern_bar
, proxy
->modern_mem_bar
);
1600 static void virtio_pci_modern_io_region_map(VirtIOPCIProxy
*proxy
,
1601 VirtIOPCIRegion
*region
,
1602 struct virtio_pci_cap
*cap
)
1604 virtio_pci_modern_region_map(proxy
, region
, cap
,
1605 &proxy
->io_bar
, proxy
->modern_io_bar
);
1608 static void virtio_pci_modern_mem_region_unmap(VirtIOPCIProxy
*proxy
,
1609 VirtIOPCIRegion
*region
)
1611 memory_region_del_subregion(&proxy
->modern_bar
,
1615 static void virtio_pci_modern_io_region_unmap(VirtIOPCIProxy
*proxy
,
1616 VirtIOPCIRegion
*region
)
1618 memory_region_del_subregion(&proxy
->io_bar
,
1622 /* This is called by virtio-bus just after the device is plugged. */
1623 static void virtio_pci_device_plugged(DeviceState
*d
, Error
**errp
)
1625 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1626 VirtioBusState
*bus
= &proxy
->bus
;
1627 bool legacy
= !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_LEGACY
);
1628 bool modern
= !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_MODERN
);
1629 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
1632 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1634 config
= proxy
->pci_dev
.config
;
1635 if (proxy
->class_code
) {
1636 pci_config_set_class(config
, proxy
->class_code
);
1640 /* legacy and transitional */
1641 pci_set_word(config
+ PCI_SUBSYSTEM_VENDOR_ID
,
1642 pci_get_word(config
+ PCI_VENDOR_ID
));
1643 pci_set_word(config
+ PCI_SUBSYSTEM_ID
, virtio_bus_get_vdev_id(bus
));
1645 /* pure virtio-1.0 */
1646 pci_set_word(config
+ PCI_VENDOR_ID
,
1647 PCI_VENDOR_ID_REDHAT_QUMRANET
);
1648 pci_set_word(config
+ PCI_DEVICE_ID
,
1649 0x1040 + virtio_bus_get_vdev_id(bus
));
1650 pci_config_set_revision(config
, 1);
1652 config
[PCI_INTERRUPT_PIN
] = 1;
1656 struct virtio_pci_cap cap
= {
1657 .cap_len
= sizeof cap
,
1659 struct virtio_pci_notify_cap notify
= {
1660 .cap
.cap_len
= sizeof notify
,
1661 .notify_off_multiplier
=
1662 cpu_to_le32(QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
),
1664 struct virtio_pci_cfg_cap cfg
= {
1665 .cap
.cap_len
= sizeof cfg
,
1666 .cap
.cfg_type
= VIRTIO_PCI_CAP_PCI_CFG
,
1668 struct virtio_pci_notify_cap notify_pio
= {
1669 .cap
.cap_len
= sizeof notify
,
1670 .notify_off_multiplier
= cpu_to_le32(0x0),
1673 struct virtio_pci_cfg_cap
*cfg_mask
;
1675 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_VERSION_1
);
1676 virtio_pci_modern_regions_init(proxy
);
1678 virtio_pci_modern_mem_region_map(proxy
, &proxy
->common
, &cap
);
1679 virtio_pci_modern_mem_region_map(proxy
, &proxy
->isr
, &cap
);
1680 virtio_pci_modern_mem_region_map(proxy
, &proxy
->device
, &cap
);
1681 virtio_pci_modern_mem_region_map(proxy
, &proxy
->notify
, ¬ify
.cap
);
1684 memory_region_init(&proxy
->io_bar
, OBJECT(proxy
),
1685 "virtio-pci-io", 0x4);
1687 pci_register_bar(&proxy
->pci_dev
, proxy
->modern_io_bar
,
1688 PCI_BASE_ADDRESS_SPACE_IO
, &proxy
->io_bar
);
1690 virtio_pci_modern_io_region_map(proxy
, &proxy
->notify_pio
,
1694 pci_register_bar(&proxy
->pci_dev
, proxy
->modern_mem_bar
,
1695 PCI_BASE_ADDRESS_SPACE_MEMORY
|
1696 PCI_BASE_ADDRESS_MEM_PREFETCH
|
1697 PCI_BASE_ADDRESS_MEM_TYPE_64
,
1698 &proxy
->modern_bar
);
1700 proxy
->config_cap
= virtio_pci_add_mem_cap(proxy
, &cfg
.cap
);
1701 cfg_mask
= (void *)(proxy
->pci_dev
.wmask
+ proxy
->config_cap
);
1702 pci_set_byte(&cfg_mask
->cap
.bar
, ~0x0);
1703 pci_set_long((uint8_t *)&cfg_mask
->cap
.offset
, ~0x0);
1704 pci_set_long((uint8_t *)&cfg_mask
->cap
.length
, ~0x0);
1705 pci_set_long(cfg_mask
->pci_cfg_data
, ~0x0);
1708 if (proxy
->nvectors
) {
1709 int err
= msix_init_exclusive_bar(&proxy
->pci_dev
, proxy
->nvectors
,
1712 /* Notice when a system that supports MSIx can't initialize it. */
1713 if (err
!= -ENOTSUP
) {
1714 error_report("unable to init msix vectors to %" PRIu32
,
1717 proxy
->nvectors
= 0;
1721 proxy
->pci_dev
.config_write
= virtio_write_config
;
1722 proxy
->pci_dev
.config_read
= virtio_read_config
;
1725 size
= VIRTIO_PCI_REGION_SIZE(&proxy
->pci_dev
)
1726 + virtio_bus_get_vdev_config_len(bus
);
1727 size
= pow2ceil(size
);
1729 memory_region_init_io(&proxy
->bar
, OBJECT(proxy
),
1730 &virtio_pci_config_ops
,
1731 proxy
, "virtio-pci", size
);
1733 pci_register_bar(&proxy
->pci_dev
, proxy
->legacy_io_bar
,
1734 PCI_BASE_ADDRESS_SPACE_IO
, &proxy
->bar
);
1737 if (!kvm_has_many_ioeventfds()) {
1738 proxy
->flags
&= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD
;
1741 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_BAD_FEATURE
);
1744 static void virtio_pci_device_unplugged(DeviceState
*d
)
1746 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1747 bool modern
= !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_MODERN
);
1748 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
1750 virtio_pci_stop_ioeventfd(proxy
);
1753 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->common
);
1754 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->isr
);
1755 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->device
);
1756 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->notify
);
1758 virtio_pci_modern_io_region_unmap(proxy
, &proxy
->notify_pio
);
1763 static void virtio_pci_realize(PCIDevice
*pci_dev
, Error
**errp
)
1765 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(pci_dev
);
1766 VirtioPCIClass
*k
= VIRTIO_PCI_GET_CLASS(pci_dev
);
1769 * virtio pci bar layout used by default.
1770 * subclasses can re-arrange things if needed.
1772 * region 0 -- virtio legacy io bar
1773 * region 1 -- msi-x bar
1774 * region 4+5 -- virtio modern memory (64bit) bar
1777 proxy
->legacy_io_bar
= 0;
1778 proxy
->msix_bar
= 1;
1779 proxy
->modern_io_bar
= 2;
1780 proxy
->modern_mem_bar
= 4;
1782 proxy
->common
.offset
= 0x0;
1783 proxy
->common
.size
= 0x1000;
1784 proxy
->common
.type
= VIRTIO_PCI_CAP_COMMON_CFG
;
1786 proxy
->isr
.offset
= 0x1000;
1787 proxy
->isr
.size
= 0x1000;
1788 proxy
->isr
.type
= VIRTIO_PCI_CAP_ISR_CFG
;
1790 proxy
->device
.offset
= 0x2000;
1791 proxy
->device
.size
= 0x1000;
1792 proxy
->device
.type
= VIRTIO_PCI_CAP_DEVICE_CFG
;
1794 proxy
->notify
.offset
= 0x3000;
1795 proxy
->notify
.size
=
1796 QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
* VIRTIO_QUEUE_MAX
;
1797 proxy
->notify
.type
= VIRTIO_PCI_CAP_NOTIFY_CFG
;
1799 proxy
->notify_pio
.offset
= 0x0;
1800 proxy
->notify_pio
.size
= 0x4;
1801 proxy
->notify_pio
.type
= VIRTIO_PCI_CAP_NOTIFY_CFG
;
1803 /* subclasses can enforce modern, so do this unconditionally */
1804 memory_region_init(&proxy
->modern_bar
, OBJECT(proxy
), "virtio-pci",
1805 2 * QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
*
1808 memory_region_init_alias(&proxy
->modern_cfg
,
1813 memory_region_size(&proxy
->modern_bar
));
1815 address_space_init(&proxy
->modern_as
, &proxy
->modern_cfg
, "virtio-pci-cfg-as");
1817 if (pci_is_express(pci_dev
) && pci_bus_is_express(pci_dev
->bus
) &&
1818 !pci_bus_is_root(pci_dev
->bus
)) {
1821 pos
= pcie_endpoint_cap_init(pci_dev
, 0);
1824 pos
= pci_add_capability(pci_dev
, PCI_CAP_ID_PM
, 0, PCI_PM_SIZEOF
);
1828 * Indicates that this function complies with revision 1.2 of the
1829 * PCI Power Management Interface Specification.
1831 pci_set_word(pci_dev
->config
+ pos
+ PCI_PM_PMC
, 0x3);
1834 * make future invocations of pci_is_express() return false
1835 * and pci_config_size() return PCI_CONFIG_SPACE_SIZE.
1837 pci_dev
->cap_present
&= ~QEMU_PCI_CAP_EXPRESS
;
1840 virtio_pci_bus_new(&proxy
->bus
, sizeof(proxy
->bus
), proxy
);
1842 k
->realize(proxy
, errp
);
1846 static void virtio_pci_exit(PCIDevice
*pci_dev
)
1848 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(pci_dev
);
1850 msix_uninit_exclusive_bar(pci_dev
);
1851 address_space_destroy(&proxy
->modern_as
);
1854 static void virtio_pci_reset(DeviceState
*qdev
)
1856 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(qdev
);
1857 VirtioBusState
*bus
= VIRTIO_BUS(&proxy
->bus
);
1860 virtio_pci_stop_ioeventfd(proxy
);
1861 virtio_bus_reset(bus
);
1862 msix_unuse_all_vectors(&proxy
->pci_dev
);
1864 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; i
++) {
1865 proxy
->vqs
[i
].enabled
= 0;
1869 static Property virtio_pci_properties
[] = {
1870 DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy
, flags
,
1871 VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT
, false),
1872 DEFINE_PROP_BIT("disable-legacy", VirtIOPCIProxy
, flags
,
1873 VIRTIO_PCI_FLAG_DISABLE_LEGACY_BIT
, false),
1874 DEFINE_PROP_BIT("disable-modern", VirtIOPCIProxy
, flags
,
1875 VIRTIO_PCI_FLAG_DISABLE_MODERN_BIT
, true),
1876 DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy
, flags
,
1877 VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT
, true),
1878 DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy
, flags
,
1879 VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT
, false),
1880 DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy
, flags
,
1881 VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT
, false),
1882 DEFINE_PROP_END_OF_LIST(),
1885 static void virtio_pci_dc_realize(DeviceState
*qdev
, Error
**errp
)
1887 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_GET_CLASS(qdev
);
1888 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(qdev
);
1889 PCIDevice
*pci_dev
= &proxy
->pci_dev
;
1891 if (!(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_PCIE
) &&
1892 !(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_MODERN
)) {
1893 pci_dev
->cap_present
|= QEMU_PCI_CAP_EXPRESS
;
1896 vpciklass
->parent_dc_realize(qdev
, errp
);
1899 static void virtio_pci_class_init(ObjectClass
*klass
, void *data
)
1901 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1902 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
1903 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_CLASS(klass
);
1905 dc
->props
= virtio_pci_properties
;
1906 k
->realize
= virtio_pci_realize
;
1907 k
->exit
= virtio_pci_exit
;
1908 k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1909 k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1910 k
->class_id
= PCI_CLASS_OTHERS
;
1911 vpciklass
->parent_dc_realize
= dc
->realize
;
1912 dc
->realize
= virtio_pci_dc_realize
;
1913 dc
->reset
= virtio_pci_reset
;
1916 static const TypeInfo virtio_pci_info
= {
1917 .name
= TYPE_VIRTIO_PCI
,
1918 .parent
= TYPE_PCI_DEVICE
,
1919 .instance_size
= sizeof(VirtIOPCIProxy
),
1920 .class_init
= virtio_pci_class_init
,
1921 .class_size
= sizeof(VirtioPCIClass
),
1925 /* virtio-blk-pci */
1927 static Property virtio_blk_pci_properties
[] = {
1928 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
1929 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
1930 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
1931 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
1932 DEFINE_PROP_END_OF_LIST(),
1935 static void virtio_blk_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1937 VirtIOBlkPCI
*dev
= VIRTIO_BLK_PCI(vpci_dev
);
1938 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1940 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
1941 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1944 static void virtio_blk_pci_class_init(ObjectClass
*klass
, void *data
)
1946 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1947 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
1948 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
1950 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1951 dc
->props
= virtio_blk_pci_properties
;
1952 k
->realize
= virtio_blk_pci_realize
;
1953 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1954 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_BLOCK
;
1955 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1956 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
1959 static void virtio_blk_pci_instance_init(Object
*obj
)
1961 VirtIOBlkPCI
*dev
= VIRTIO_BLK_PCI(obj
);
1963 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1965 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
),"iothread",
1967 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
1968 "bootindex", &error_abort
);
1971 static const TypeInfo virtio_blk_pci_info
= {
1972 .name
= TYPE_VIRTIO_BLK_PCI
,
1973 .parent
= TYPE_VIRTIO_PCI
,
1974 .instance_size
= sizeof(VirtIOBlkPCI
),
1975 .instance_init
= virtio_blk_pci_instance_init
,
1976 .class_init
= virtio_blk_pci_class_init
,
1979 /* virtio-scsi-pci */
1981 static Property virtio_scsi_pci_properties
[] = {
1982 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
1983 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
1984 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
1985 DEV_NVECTORS_UNSPECIFIED
),
1986 DEFINE_PROP_END_OF_LIST(),
1989 static void virtio_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1991 VirtIOSCSIPCI
*dev
= VIRTIO_SCSI_PCI(vpci_dev
);
1992 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1993 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
1994 DeviceState
*proxy
= DEVICE(vpci_dev
);
1997 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
1998 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
2002 * For command line compatibility, this sets the virtio-scsi-device bus
2006 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
2007 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
2011 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2012 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2015 static void virtio_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
2017 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2018 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2019 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2021 k
->realize
= virtio_scsi_pci_realize
;
2022 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2023 dc
->props
= virtio_scsi_pci_properties
;
2024 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2025 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
2026 pcidev_k
->revision
= 0x00;
2027 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2030 static void virtio_scsi_pci_instance_init(Object
*obj
)
2032 VirtIOSCSIPCI
*dev
= VIRTIO_SCSI_PCI(obj
);
2034 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2036 object_property_add_alias(obj
, "iothread", OBJECT(&dev
->vdev
), "iothread",
2040 static const TypeInfo virtio_scsi_pci_info
= {
2041 .name
= TYPE_VIRTIO_SCSI_PCI
,
2042 .parent
= TYPE_VIRTIO_PCI
,
2043 .instance_size
= sizeof(VirtIOSCSIPCI
),
2044 .instance_init
= virtio_scsi_pci_instance_init
,
2045 .class_init
= virtio_scsi_pci_class_init
,
2048 /* vhost-scsi-pci */
2050 #ifdef CONFIG_VHOST_SCSI
2051 static Property vhost_scsi_pci_properties
[] = {
2052 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
2053 DEV_NVECTORS_UNSPECIFIED
),
2054 DEFINE_PROP_END_OF_LIST(),
2057 static void vhost_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2059 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(vpci_dev
);
2060 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2061 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
2063 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2064 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
2067 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2068 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2071 static void vhost_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
2073 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2074 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2075 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2076 k
->realize
= vhost_scsi_pci_realize
;
2077 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2078 dc
->props
= vhost_scsi_pci_properties
;
2079 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2080 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
2081 pcidev_k
->revision
= 0x00;
2082 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2085 static void vhost_scsi_pci_instance_init(Object
*obj
)
2087 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(obj
);
2089 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2091 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2092 "bootindex", &error_abort
);
2095 static const TypeInfo vhost_scsi_pci_info
= {
2096 .name
= TYPE_VHOST_SCSI_PCI
,
2097 .parent
= TYPE_VIRTIO_PCI
,
2098 .instance_size
= sizeof(VHostSCSIPCI
),
2099 .instance_init
= vhost_scsi_pci_instance_init
,
2100 .class_init
= vhost_scsi_pci_class_init
,
2104 /* virtio-balloon-pci */
2106 static Property virtio_balloon_pci_properties
[] = {
2107 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
2108 DEFINE_PROP_END_OF_LIST(),
2111 static void virtio_balloon_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2113 VirtIOBalloonPCI
*dev
= VIRTIO_BALLOON_PCI(vpci_dev
);
2114 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2116 if (vpci_dev
->class_code
!= PCI_CLASS_OTHERS
&&
2117 vpci_dev
->class_code
!= PCI_CLASS_MEMORY_RAM
) { /* qemu < 1.1 */
2118 vpci_dev
->class_code
= PCI_CLASS_OTHERS
;
2121 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2122 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2125 static void virtio_balloon_pci_class_init(ObjectClass
*klass
, void *data
)
2127 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2128 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2129 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2130 k
->realize
= virtio_balloon_pci_realize
;
2131 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
2132 dc
->props
= virtio_balloon_pci_properties
;
2133 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2134 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_BALLOON
;
2135 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2136 pcidev_k
->class_id
= PCI_CLASS_OTHERS
;
2139 static void virtio_balloon_pci_instance_init(Object
*obj
)
2141 VirtIOBalloonPCI
*dev
= VIRTIO_BALLOON_PCI(obj
);
2143 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2144 TYPE_VIRTIO_BALLOON
);
2145 object_property_add_alias(obj
, "guest-stats", OBJECT(&dev
->vdev
),
2146 "guest-stats", &error_abort
);
2147 object_property_add_alias(obj
, "guest-stats-polling-interval",
2149 "guest-stats-polling-interval", &error_abort
);
2152 static const TypeInfo virtio_balloon_pci_info
= {
2153 .name
= TYPE_VIRTIO_BALLOON_PCI
,
2154 .parent
= TYPE_VIRTIO_PCI
,
2155 .instance_size
= sizeof(VirtIOBalloonPCI
),
2156 .instance_init
= virtio_balloon_pci_instance_init
,
2157 .class_init
= virtio_balloon_pci_class_init
,
2160 /* virtio-serial-pci */
2162 static void virtio_serial_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2164 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(vpci_dev
);
2165 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2166 DeviceState
*proxy
= DEVICE(vpci_dev
);
2169 if (vpci_dev
->class_code
!= PCI_CLASS_COMMUNICATION_OTHER
&&
2170 vpci_dev
->class_code
!= PCI_CLASS_DISPLAY_OTHER
&& /* qemu 0.10 */
2171 vpci_dev
->class_code
!= PCI_CLASS_OTHERS
) { /* qemu-kvm */
2172 vpci_dev
->class_code
= PCI_CLASS_COMMUNICATION_OTHER
;
2175 /* backwards-compatibility with machines that were created with
2176 DEV_NVECTORS_UNSPECIFIED */
2177 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2178 vpci_dev
->nvectors
= dev
->vdev
.serial
.max_virtserial_ports
+ 1;
2182 * For command line compatibility, this sets the virtio-serial-device bus
2186 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
2187 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
2191 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2192 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2195 static Property virtio_serial_pci_properties
[] = {
2196 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
2197 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
2198 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
2199 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
2200 DEFINE_PROP_END_OF_LIST(),
2203 static void virtio_serial_pci_class_init(ObjectClass
*klass
, void *data
)
2205 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2206 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2207 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2208 k
->realize
= virtio_serial_pci_realize
;
2209 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
2210 dc
->props
= virtio_serial_pci_properties
;
2211 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2212 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_CONSOLE
;
2213 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2214 pcidev_k
->class_id
= PCI_CLASS_COMMUNICATION_OTHER
;
2217 static void virtio_serial_pci_instance_init(Object
*obj
)
2219 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(obj
);
2221 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2222 TYPE_VIRTIO_SERIAL
);
2225 static const TypeInfo virtio_serial_pci_info
= {
2226 .name
= TYPE_VIRTIO_SERIAL_PCI
,
2227 .parent
= TYPE_VIRTIO_PCI
,
2228 .instance_size
= sizeof(VirtIOSerialPCI
),
2229 .instance_init
= virtio_serial_pci_instance_init
,
2230 .class_init
= virtio_serial_pci_class_init
,
2233 /* virtio-net-pci */
2235 static Property virtio_net_properties
[] = {
2236 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
2237 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, false),
2238 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 3),
2239 DEFINE_PROP_END_OF_LIST(),
2242 static void virtio_net_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2244 DeviceState
*qdev
= DEVICE(vpci_dev
);
2245 VirtIONetPCI
*dev
= VIRTIO_NET_PCI(vpci_dev
);
2246 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2248 virtio_net_set_netclient_name(&dev
->vdev
, qdev
->id
,
2249 object_get_typename(OBJECT(qdev
)));
2250 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2251 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2254 static void virtio_net_pci_class_init(ObjectClass
*klass
, void *data
)
2256 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2257 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
2258 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_CLASS(klass
);
2260 k
->romfile
= "efi-virtio.rom";
2261 k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2262 k
->device_id
= PCI_DEVICE_ID_VIRTIO_NET
;
2263 k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2264 k
->class_id
= PCI_CLASS_NETWORK_ETHERNET
;
2265 set_bit(DEVICE_CATEGORY_NETWORK
, dc
->categories
);
2266 dc
->props
= virtio_net_properties
;
2267 vpciklass
->realize
= virtio_net_pci_realize
;
2270 static void virtio_net_pci_instance_init(Object
*obj
)
2272 VirtIONetPCI
*dev
= VIRTIO_NET_PCI(obj
);
2274 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2276 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2277 "bootindex", &error_abort
);
2280 static const TypeInfo virtio_net_pci_info
= {
2281 .name
= TYPE_VIRTIO_NET_PCI
,
2282 .parent
= TYPE_VIRTIO_PCI
,
2283 .instance_size
= sizeof(VirtIONetPCI
),
2284 .instance_init
= virtio_net_pci_instance_init
,
2285 .class_init
= virtio_net_pci_class_init
,
2288 /* virtio-rng-pci */
2290 static void virtio_rng_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2292 VirtIORngPCI
*vrng
= VIRTIO_RNG_PCI(vpci_dev
);
2293 DeviceState
*vdev
= DEVICE(&vrng
->vdev
);
2296 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2297 object_property_set_bool(OBJECT(vdev
), true, "realized", &err
);
2299 error_propagate(errp
, err
);
2303 object_property_set_link(OBJECT(vrng
),
2304 OBJECT(vrng
->vdev
.conf
.rng
), "rng",
2308 static void virtio_rng_pci_class_init(ObjectClass
*klass
, void *data
)
2310 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2311 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2312 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2314 k
->realize
= virtio_rng_pci_realize
;
2315 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
2317 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2318 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_RNG
;
2319 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2320 pcidev_k
->class_id
= PCI_CLASS_OTHERS
;
2323 static void virtio_rng_initfn(Object
*obj
)
2325 VirtIORngPCI
*dev
= VIRTIO_RNG_PCI(obj
);
2327 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2329 object_property_add_alias(obj
, "rng", OBJECT(&dev
->vdev
), "rng",
2333 static const TypeInfo virtio_rng_pci_info
= {
2334 .name
= TYPE_VIRTIO_RNG_PCI
,
2335 .parent
= TYPE_VIRTIO_PCI
,
2336 .instance_size
= sizeof(VirtIORngPCI
),
2337 .instance_init
= virtio_rng_initfn
,
2338 .class_init
= virtio_rng_pci_class_init
,
2341 /* virtio-input-pci */
2343 static Property virtio_input_pci_properties
[] = {
2344 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
2345 DEFINE_PROP_END_OF_LIST(),
2348 static void virtio_input_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2350 VirtIOInputPCI
*vinput
= VIRTIO_INPUT_PCI(vpci_dev
);
2351 DeviceState
*vdev
= DEVICE(&vinput
->vdev
);
2353 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2354 /* force virtio-1.0 */
2355 vpci_dev
->flags
&= ~VIRTIO_PCI_FLAG_DISABLE_MODERN
;
2356 vpci_dev
->flags
|= VIRTIO_PCI_FLAG_DISABLE_LEGACY
;
2357 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2360 static void virtio_input_pci_class_init(ObjectClass
*klass
, void *data
)
2362 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2363 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2364 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2366 dc
->props
= virtio_input_pci_properties
;
2367 k
->realize
= virtio_input_pci_realize
;
2368 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
2370 pcidev_k
->class_id
= PCI_CLASS_INPUT_OTHER
;
2373 static void virtio_input_hid_kbd_pci_class_init(ObjectClass
*klass
, void *data
)
2375 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2377 pcidev_k
->class_id
= PCI_CLASS_INPUT_KEYBOARD
;
2380 static void virtio_input_hid_mouse_pci_class_init(ObjectClass
*klass
,
2383 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2385 pcidev_k
->class_id
= PCI_CLASS_INPUT_MOUSE
;
2388 static void virtio_keyboard_initfn(Object
*obj
)
2390 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2392 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2393 TYPE_VIRTIO_KEYBOARD
);
2396 static void virtio_mouse_initfn(Object
*obj
)
2398 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2400 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2404 static void virtio_tablet_initfn(Object
*obj
)
2406 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2408 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2409 TYPE_VIRTIO_TABLET
);
2412 static const TypeInfo virtio_input_pci_info
= {
2413 .name
= TYPE_VIRTIO_INPUT_PCI
,
2414 .parent
= TYPE_VIRTIO_PCI
,
2415 .instance_size
= sizeof(VirtIOInputPCI
),
2416 .class_init
= virtio_input_pci_class_init
,
2420 static const TypeInfo virtio_input_hid_pci_info
= {
2421 .name
= TYPE_VIRTIO_INPUT_HID_PCI
,
2422 .parent
= TYPE_VIRTIO_INPUT_PCI
,
2423 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2427 static const TypeInfo virtio_keyboard_pci_info
= {
2428 .name
= TYPE_VIRTIO_KEYBOARD_PCI
,
2429 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2430 .class_init
= virtio_input_hid_kbd_pci_class_init
,
2431 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2432 .instance_init
= virtio_keyboard_initfn
,
2435 static const TypeInfo virtio_mouse_pci_info
= {
2436 .name
= TYPE_VIRTIO_MOUSE_PCI
,
2437 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2438 .class_init
= virtio_input_hid_mouse_pci_class_init
,
2439 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2440 .instance_init
= virtio_mouse_initfn
,
2443 static const TypeInfo virtio_tablet_pci_info
= {
2444 .name
= TYPE_VIRTIO_TABLET_PCI
,
2445 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2446 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2447 .instance_init
= virtio_tablet_initfn
,
2451 static void virtio_host_initfn(Object
*obj
)
2453 VirtIOInputHostPCI
*dev
= VIRTIO_INPUT_HOST_PCI(obj
);
2455 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2456 TYPE_VIRTIO_INPUT_HOST
);
2459 static const TypeInfo virtio_host_pci_info
= {
2460 .name
= TYPE_VIRTIO_INPUT_HOST_PCI
,
2461 .parent
= TYPE_VIRTIO_INPUT_PCI
,
2462 .instance_size
= sizeof(VirtIOInputHostPCI
),
2463 .instance_init
= virtio_host_initfn
,
2467 /* virtio-pci-bus */
2469 static void virtio_pci_bus_new(VirtioBusState
*bus
, size_t bus_size
,
2470 VirtIOPCIProxy
*dev
)
2472 DeviceState
*qdev
= DEVICE(dev
);
2473 char virtio_bus_name
[] = "virtio-bus";
2475 qbus_create_inplace(bus
, bus_size
, TYPE_VIRTIO_PCI_BUS
, qdev
,
2479 static void virtio_pci_bus_class_init(ObjectClass
*klass
, void *data
)
2481 BusClass
*bus_class
= BUS_CLASS(klass
);
2482 VirtioBusClass
*k
= VIRTIO_BUS_CLASS(klass
);
2483 bus_class
->max_dev
= 1;
2484 k
->notify
= virtio_pci_notify
;
2485 k
->save_config
= virtio_pci_save_config
;
2486 k
->load_config
= virtio_pci_load_config
;
2487 k
->save_queue
= virtio_pci_save_queue
;
2488 k
->load_queue
= virtio_pci_load_queue
;
2489 k
->save_extra_state
= virtio_pci_save_extra_state
;
2490 k
->load_extra_state
= virtio_pci_load_extra_state
;
2491 k
->has_extra_state
= virtio_pci_has_extra_state
;
2492 k
->query_guest_notifiers
= virtio_pci_query_guest_notifiers
;
2493 k
->set_host_notifier
= virtio_pci_set_host_notifier
;
2494 k
->set_guest_notifiers
= virtio_pci_set_guest_notifiers
;
2495 k
->vmstate_change
= virtio_pci_vmstate_change
;
2496 k
->device_plugged
= virtio_pci_device_plugged
;
2497 k
->device_unplugged
= virtio_pci_device_unplugged
;
2498 k
->query_nvectors
= virtio_pci_query_nvectors
;
2501 static const TypeInfo virtio_pci_bus_info
= {
2502 .name
= TYPE_VIRTIO_PCI_BUS
,
2503 .parent
= TYPE_VIRTIO_BUS
,
2504 .instance_size
= sizeof(VirtioPCIBusState
),
2505 .class_init
= virtio_pci_bus_class_init
,
2508 static void virtio_pci_register_types(void)
2510 type_register_static(&virtio_rng_pci_info
);
2511 type_register_static(&virtio_input_pci_info
);
2512 type_register_static(&virtio_input_hid_pci_info
);
2513 type_register_static(&virtio_keyboard_pci_info
);
2514 type_register_static(&virtio_mouse_pci_info
);
2515 type_register_static(&virtio_tablet_pci_info
);
2517 type_register_static(&virtio_host_pci_info
);
2519 type_register_static(&virtio_pci_bus_info
);
2520 type_register_static(&virtio_pci_info
);
2521 #ifdef CONFIG_VIRTFS
2522 type_register_static(&virtio_9p_pci_info
);
2524 type_register_static(&virtio_blk_pci_info
);
2525 type_register_static(&virtio_scsi_pci_info
);
2526 type_register_static(&virtio_balloon_pci_info
);
2527 type_register_static(&virtio_serial_pci_info
);
2528 type_register_static(&virtio_net_pci_info
);
2529 #ifdef CONFIG_VHOST_SCSI
2530 type_register_static(&vhost_scsi_pci_info
);
2534 type_init(virtio_pci_register_types
)