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
, atomic_read(&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 const VMStateDescription vmstate_virtio_pci_modern_queue_state
= {
92 .name
= "virtio_pci/modern_queue_state",
94 .minimum_version_id
= 1,
95 .fields
= (VMStateField
[]) {
96 VMSTATE_UINT16(num
, VirtIOPCIQueue
),
97 VMSTATE_UNUSED(1), /* enabled was stored as be16 */
98 VMSTATE_BOOL(enabled
, VirtIOPCIQueue
),
99 VMSTATE_UINT32_ARRAY(desc
, VirtIOPCIQueue
, 2),
100 VMSTATE_UINT32_ARRAY(avail
, VirtIOPCIQueue
, 2),
101 VMSTATE_UINT32_ARRAY(used
, VirtIOPCIQueue
, 2),
102 VMSTATE_END_OF_LIST()
106 static bool virtio_pci_modern_state_needed(void *opaque
)
108 VirtIOPCIProxy
*proxy
= opaque
;
110 return virtio_pci_modern(proxy
);
113 static const VMStateDescription vmstate_virtio_pci_modern_state_sub
= {
114 .name
= "virtio_pci/modern_state",
116 .minimum_version_id
= 1,
117 .needed
= &virtio_pci_modern_state_needed
,
118 .fields
= (VMStateField
[]) {
119 VMSTATE_UINT32(dfselect
, VirtIOPCIProxy
),
120 VMSTATE_UINT32(gfselect
, VirtIOPCIProxy
),
121 VMSTATE_UINT32_ARRAY(guest_features
, VirtIOPCIProxy
, 2),
122 VMSTATE_STRUCT_ARRAY(vqs
, VirtIOPCIProxy
, VIRTIO_QUEUE_MAX
, 0,
123 vmstate_virtio_pci_modern_queue_state
,
125 VMSTATE_END_OF_LIST()
129 static const VMStateDescription vmstate_virtio_pci
= {
130 .name
= "virtio_pci",
132 .minimum_version_id
= 1,
133 .minimum_version_id_old
= 1,
134 .fields
= (VMStateField
[]) {
135 VMSTATE_END_OF_LIST()
137 .subsections
= (const VMStateDescription
*[]) {
138 &vmstate_virtio_pci_modern_state_sub
,
143 static bool virtio_pci_has_extra_state(DeviceState
*d
)
145 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
147 return proxy
->flags
& VIRTIO_PCI_FLAG_MIGRATE_EXTRA
;
150 static void virtio_pci_save_extra_state(DeviceState
*d
, QEMUFile
*f
)
152 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
154 vmstate_save_state(f
, &vmstate_virtio_pci
, proxy
, NULL
);
157 static int virtio_pci_load_extra_state(DeviceState
*d
, QEMUFile
*f
)
159 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
161 return vmstate_load_state(f
, &vmstate_virtio_pci
, proxy
, 1);
164 static void virtio_pci_save_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
166 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
167 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
169 if (msix_present(&proxy
->pci_dev
))
170 qemu_put_be16(f
, virtio_queue_vector(vdev
, n
));
173 static int virtio_pci_load_config(DeviceState
*d
, QEMUFile
*f
)
175 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
176 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
179 ret
= pci_device_load(&proxy
->pci_dev
, f
);
183 msix_unuse_all_vectors(&proxy
->pci_dev
);
184 msix_load(&proxy
->pci_dev
, f
);
185 if (msix_present(&proxy
->pci_dev
)) {
186 qemu_get_be16s(f
, &vdev
->config_vector
);
188 vdev
->config_vector
= VIRTIO_NO_VECTOR
;
190 if (vdev
->config_vector
!= VIRTIO_NO_VECTOR
) {
191 return msix_vector_use(&proxy
->pci_dev
, vdev
->config_vector
);
196 static int virtio_pci_load_queue(DeviceState
*d
, int n
, QEMUFile
*f
)
198 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
199 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
202 if (msix_present(&proxy
->pci_dev
)) {
203 qemu_get_be16s(f
, &vector
);
205 vector
= VIRTIO_NO_VECTOR
;
207 virtio_queue_set_vector(vdev
, n
, vector
);
208 if (vector
!= VIRTIO_NO_VECTOR
) {
209 return msix_vector_use(&proxy
->pci_dev
, vector
);
215 static bool virtio_pci_ioeventfd_enabled(DeviceState
*d
)
217 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
219 return (proxy
->flags
& VIRTIO_PCI_FLAG_USE_IOEVENTFD
) != 0;
222 #define QEMU_VIRTIO_PCI_QUEUE_MEM_MULT 0x1000
224 static inline int virtio_pci_queue_mem_mult(struct VirtIOPCIProxy
*proxy
)
226 return (proxy
->flags
& VIRTIO_PCI_FLAG_PAGE_PER_VQ
) ?
227 QEMU_VIRTIO_PCI_QUEUE_MEM_MULT
: 4;
230 static int virtio_pci_ioeventfd_assign(DeviceState
*d
, EventNotifier
*notifier
,
233 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
234 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
235 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
236 bool legacy
= virtio_pci_legacy(proxy
);
237 bool modern
= virtio_pci_modern(proxy
);
238 bool fast_mmio
= kvm_ioeventfd_any_length_enabled();
239 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
240 MemoryRegion
*modern_mr
= &proxy
->notify
.mr
;
241 MemoryRegion
*modern_notify_mr
= &proxy
->notify_pio
.mr
;
242 MemoryRegion
*legacy_mr
= &proxy
->bar
;
243 hwaddr modern_addr
= virtio_pci_queue_mem_mult(proxy
) *
244 virtio_get_queue_index(vq
);
245 hwaddr legacy_addr
= VIRTIO_PCI_QUEUE_NOTIFY
;
250 memory_region_add_eventfd(modern_mr
, modern_addr
, 0,
253 memory_region_add_eventfd(modern_mr
, modern_addr
, 2,
257 memory_region_add_eventfd(modern_notify_mr
, 0, 2,
262 memory_region_add_eventfd(legacy_mr
, legacy_addr
, 2,
268 memory_region_del_eventfd(modern_mr
, modern_addr
, 0,
271 memory_region_del_eventfd(modern_mr
, modern_addr
, 2,
275 memory_region_del_eventfd(modern_notify_mr
, 0, 2,
280 memory_region_del_eventfd(legacy_mr
, legacy_addr
, 2,
287 static void virtio_pci_start_ioeventfd(VirtIOPCIProxy
*proxy
)
289 virtio_bus_start_ioeventfd(&proxy
->bus
);
292 static void virtio_pci_stop_ioeventfd(VirtIOPCIProxy
*proxy
)
294 virtio_bus_stop_ioeventfd(&proxy
->bus
);
297 static void virtio_ioport_write(void *opaque
, uint32_t addr
, uint32_t val
)
299 VirtIOPCIProxy
*proxy
= opaque
;
300 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
304 case VIRTIO_PCI_GUEST_FEATURES
:
305 /* Guest does not negotiate properly? We have to assume nothing. */
306 if (val
& (1 << VIRTIO_F_BAD_FEATURE
)) {
307 val
= virtio_bus_get_vdev_bad_features(&proxy
->bus
);
309 virtio_set_features(vdev
, val
);
311 case VIRTIO_PCI_QUEUE_PFN
:
312 pa
= (hwaddr
)val
<< VIRTIO_PCI_QUEUE_ADDR_SHIFT
;
314 virtio_pci_reset(DEVICE(proxy
));
317 virtio_queue_set_addr(vdev
, vdev
->queue_sel
, pa
);
319 case VIRTIO_PCI_QUEUE_SEL
:
320 if (val
< VIRTIO_QUEUE_MAX
)
321 vdev
->queue_sel
= val
;
323 case VIRTIO_PCI_QUEUE_NOTIFY
:
324 if (val
< VIRTIO_QUEUE_MAX
) {
325 virtio_queue_notify(vdev
, val
);
328 case VIRTIO_PCI_STATUS
:
329 if (!(val
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
330 virtio_pci_stop_ioeventfd(proxy
);
333 virtio_set_status(vdev
, val
& 0xFF);
335 if (val
& VIRTIO_CONFIG_S_DRIVER_OK
) {
336 virtio_pci_start_ioeventfd(proxy
);
339 if (vdev
->status
== 0) {
340 virtio_pci_reset(DEVICE(proxy
));
343 /* Linux before 2.6.34 drives the device without enabling
344 the PCI device bus master bit. Enable it automatically
345 for the guest. This is a PCI spec violation but so is
346 initiating DMA with bus master bit clear. */
347 if (val
== (VIRTIO_CONFIG_S_ACKNOWLEDGE
| VIRTIO_CONFIG_S_DRIVER
)) {
348 pci_default_write_config(&proxy
->pci_dev
, PCI_COMMAND
,
349 proxy
->pci_dev
.config
[PCI_COMMAND
] |
350 PCI_COMMAND_MASTER
, 1);
353 case VIRTIO_MSI_CONFIG_VECTOR
:
354 msix_vector_unuse(&proxy
->pci_dev
, vdev
->config_vector
);
355 /* Make it possible for guest to discover an error took place. */
356 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0)
357 val
= VIRTIO_NO_VECTOR
;
358 vdev
->config_vector
= val
;
360 case VIRTIO_MSI_QUEUE_VECTOR
:
361 msix_vector_unuse(&proxy
->pci_dev
,
362 virtio_queue_vector(vdev
, vdev
->queue_sel
));
363 /* Make it possible for guest to discover an error took place. */
364 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0)
365 val
= VIRTIO_NO_VECTOR
;
366 virtio_queue_set_vector(vdev
, vdev
->queue_sel
, val
);
369 error_report("%s: unexpected address 0x%x value 0x%x",
370 __func__
, addr
, val
);
375 static uint32_t virtio_ioport_read(VirtIOPCIProxy
*proxy
, uint32_t addr
)
377 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
378 uint32_t ret
= 0xFFFFFFFF;
381 case VIRTIO_PCI_HOST_FEATURES
:
382 ret
= vdev
->host_features
;
384 case VIRTIO_PCI_GUEST_FEATURES
:
385 ret
= vdev
->guest_features
;
387 case VIRTIO_PCI_QUEUE_PFN
:
388 ret
= virtio_queue_get_addr(vdev
, vdev
->queue_sel
)
389 >> VIRTIO_PCI_QUEUE_ADDR_SHIFT
;
391 case VIRTIO_PCI_QUEUE_NUM
:
392 ret
= virtio_queue_get_num(vdev
, vdev
->queue_sel
);
394 case VIRTIO_PCI_QUEUE_SEL
:
395 ret
= vdev
->queue_sel
;
397 case VIRTIO_PCI_STATUS
:
401 /* reading from the ISR also clears it. */
402 ret
= atomic_xchg(&vdev
->isr
, 0);
403 pci_irq_deassert(&proxy
->pci_dev
);
405 case VIRTIO_MSI_CONFIG_VECTOR
:
406 ret
= vdev
->config_vector
;
408 case VIRTIO_MSI_QUEUE_VECTOR
:
409 ret
= virtio_queue_vector(vdev
, vdev
->queue_sel
);
418 static uint64_t virtio_pci_config_read(void *opaque
, hwaddr addr
,
421 VirtIOPCIProxy
*proxy
= opaque
;
422 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
423 uint32_t config
= VIRTIO_PCI_CONFIG_SIZE(&proxy
->pci_dev
);
426 return virtio_ioport_read(proxy
, addr
);
432 val
= virtio_config_readb(vdev
, addr
);
435 val
= virtio_config_readw(vdev
, addr
);
436 if (virtio_is_big_endian(vdev
)) {
441 val
= virtio_config_readl(vdev
, addr
);
442 if (virtio_is_big_endian(vdev
)) {
450 static void virtio_pci_config_write(void *opaque
, hwaddr addr
,
451 uint64_t val
, unsigned size
)
453 VirtIOPCIProxy
*proxy
= opaque
;
454 uint32_t config
= VIRTIO_PCI_CONFIG_SIZE(&proxy
->pci_dev
);
455 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
457 virtio_ioport_write(proxy
, addr
, val
);
462 * Virtio-PCI is odd. Ioports are LE but config space is target native
467 virtio_config_writeb(vdev
, addr
, val
);
470 if (virtio_is_big_endian(vdev
)) {
473 virtio_config_writew(vdev
, addr
, val
);
476 if (virtio_is_big_endian(vdev
)) {
479 virtio_config_writel(vdev
, addr
, val
);
484 static const MemoryRegionOps virtio_pci_config_ops
= {
485 .read
= virtio_pci_config_read
,
486 .write
= virtio_pci_config_write
,
488 .min_access_size
= 1,
489 .max_access_size
= 4,
491 .endianness
= DEVICE_LITTLE_ENDIAN
,
494 static MemoryRegion
*virtio_address_space_lookup(VirtIOPCIProxy
*proxy
,
495 hwaddr
*off
, int len
)
498 VirtIOPCIRegion
*reg
;
500 for (i
= 0; i
< ARRAY_SIZE(proxy
->regs
); ++i
) {
501 reg
= &proxy
->regs
[i
];
502 if (*off
>= reg
->offset
&&
503 *off
+ len
<= reg
->offset
+ reg
->size
) {
512 /* Below are generic functions to do memcpy from/to an address space,
513 * without byteswaps, with input validation.
515 * As regular address_space_* APIs all do some kind of byteswap at least for
516 * some host/target combinations, we are forced to explicitly convert to a
517 * known-endianness integer value.
518 * It doesn't really matter which endian format to go through, so the code
519 * below selects the endian that causes the least amount of work on the given
522 * Note: host pointer must be aligned.
525 void virtio_address_space_write(VirtIOPCIProxy
*proxy
, hwaddr addr
,
526 const uint8_t *buf
, int len
)
531 /* address_space_* APIs assume an aligned address.
532 * As address is under guest control, handle illegal values.
536 mr
= virtio_address_space_lookup(proxy
, &addr
, len
);
541 /* Make sure caller aligned buf properly */
542 assert(!(((uintptr_t)buf
) & (len
- 1)));
546 val
= pci_get_byte(buf
);
549 val
= cpu_to_le16(pci_get_word(buf
));
552 val
= cpu_to_le32(pci_get_long(buf
));
555 /* As length is under guest control, handle illegal values. */
558 memory_region_dispatch_write(mr
, addr
, val
, len
, MEMTXATTRS_UNSPECIFIED
);
562 virtio_address_space_read(VirtIOPCIProxy
*proxy
, hwaddr addr
,
563 uint8_t *buf
, int len
)
568 /* address_space_* APIs assume an aligned address.
569 * As address is under guest control, handle illegal values.
573 mr
= virtio_address_space_lookup(proxy
, &addr
, len
);
578 /* Make sure caller aligned buf properly */
579 assert(!(((uintptr_t)buf
) & (len
- 1)));
581 memory_region_dispatch_read(mr
, addr
, &val
, len
, MEMTXATTRS_UNSPECIFIED
);
584 pci_set_byte(buf
, val
);
587 pci_set_word(buf
, le16_to_cpu(val
));
590 pci_set_long(buf
, le32_to_cpu(val
));
593 /* As length is under guest control, handle illegal values. */
598 static void virtio_write_config(PCIDevice
*pci_dev
, uint32_t address
,
599 uint32_t val
, int len
)
601 VirtIOPCIProxy
*proxy
= DO_UPCAST(VirtIOPCIProxy
, pci_dev
, pci_dev
);
602 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
603 struct virtio_pci_cfg_cap
*cfg
;
605 pci_default_write_config(pci_dev
, address
, val
, len
);
607 if (range_covers_byte(address
, len
, PCI_COMMAND
) &&
608 !(pci_dev
->config
[PCI_COMMAND
] & PCI_COMMAND_MASTER
)) {
609 virtio_pci_stop_ioeventfd(proxy
);
610 virtio_set_status(vdev
, vdev
->status
& ~VIRTIO_CONFIG_S_DRIVER_OK
);
613 if (proxy
->config_cap
&&
614 ranges_overlap(address
, len
, proxy
->config_cap
+ offsetof(struct virtio_pci_cfg_cap
,
616 sizeof cfg
->pci_cfg_data
)) {
620 cfg
= (void *)(proxy
->pci_dev
.config
+ proxy
->config_cap
);
621 off
= le32_to_cpu(cfg
->cap
.offset
);
622 len
= le32_to_cpu(cfg
->cap
.length
);
624 if (len
== 1 || len
== 2 || len
== 4) {
625 assert(len
<= sizeof cfg
->pci_cfg_data
);
626 virtio_address_space_write(proxy
, off
, cfg
->pci_cfg_data
, len
);
631 static uint32_t virtio_read_config(PCIDevice
*pci_dev
,
632 uint32_t address
, int len
)
634 VirtIOPCIProxy
*proxy
= DO_UPCAST(VirtIOPCIProxy
, pci_dev
, pci_dev
);
635 struct virtio_pci_cfg_cap
*cfg
;
637 if (proxy
->config_cap
&&
638 ranges_overlap(address
, len
, proxy
->config_cap
+ offsetof(struct virtio_pci_cfg_cap
,
640 sizeof cfg
->pci_cfg_data
)) {
644 cfg
= (void *)(proxy
->pci_dev
.config
+ proxy
->config_cap
);
645 off
= le32_to_cpu(cfg
->cap
.offset
);
646 len
= le32_to_cpu(cfg
->cap
.length
);
648 if (len
== 1 || len
== 2 || len
== 4) {
649 assert(len
<= sizeof cfg
->pci_cfg_data
);
650 virtio_address_space_read(proxy
, off
, cfg
->pci_cfg_data
, len
);
654 return pci_default_read_config(pci_dev
, address
, len
);
657 static int kvm_virtio_pci_vq_vector_use(VirtIOPCIProxy
*proxy
,
658 unsigned int queue_no
,
661 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
664 if (irqfd
->users
== 0) {
665 ret
= kvm_irqchip_add_msi_route(kvm_state
, vector
, &proxy
->pci_dev
);
675 static void kvm_virtio_pci_vq_vector_release(VirtIOPCIProxy
*proxy
,
678 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
679 if (--irqfd
->users
== 0) {
680 kvm_irqchip_release_virq(kvm_state
, irqfd
->virq
);
684 static int kvm_virtio_pci_irqfd_use(VirtIOPCIProxy
*proxy
,
685 unsigned int queue_no
,
688 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
689 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
690 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
691 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
692 return kvm_irqchip_add_irqfd_notifier_gsi(kvm_state
, n
, NULL
, irqfd
->virq
);
695 static void kvm_virtio_pci_irqfd_release(VirtIOPCIProxy
*proxy
,
696 unsigned int queue_no
,
699 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
700 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
701 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
702 VirtIOIRQFD
*irqfd
= &proxy
->vector_irqfd
[vector
];
705 ret
= kvm_irqchip_remove_irqfd_notifier_gsi(kvm_state
, n
, irqfd
->virq
);
709 static int kvm_virtio_pci_vector_use(VirtIOPCIProxy
*proxy
, int nvqs
)
711 PCIDevice
*dev
= &proxy
->pci_dev
;
712 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
713 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
717 for (queue_no
= 0; queue_no
< nvqs
; queue_no
++) {
718 if (!virtio_queue_get_num(vdev
, queue_no
)) {
721 vector
= virtio_queue_vector(vdev
, queue_no
);
722 if (vector
>= msix_nr_vectors_allocated(dev
)) {
725 ret
= kvm_virtio_pci_vq_vector_use(proxy
, queue_no
, vector
);
729 /* If guest supports masking, set up irqfd now.
730 * Otherwise, delay until unmasked in the frontend.
732 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
733 ret
= kvm_virtio_pci_irqfd_use(proxy
, queue_no
, vector
);
735 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
743 while (--queue_no
>= 0) {
744 vector
= virtio_queue_vector(vdev
, queue_no
);
745 if (vector
>= msix_nr_vectors_allocated(dev
)) {
748 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
749 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
751 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
756 static void kvm_virtio_pci_vector_release(VirtIOPCIProxy
*proxy
, int nvqs
)
758 PCIDevice
*dev
= &proxy
->pci_dev
;
759 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
762 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
764 for (queue_no
= 0; queue_no
< nvqs
; queue_no
++) {
765 if (!virtio_queue_get_num(vdev
, queue_no
)) {
768 vector
= virtio_queue_vector(vdev
, queue_no
);
769 if (vector
>= msix_nr_vectors_allocated(dev
)) {
772 /* If guest supports masking, clean up irqfd now.
773 * Otherwise, it was cleaned when masked in the frontend.
775 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
776 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
778 kvm_virtio_pci_vq_vector_release(proxy
, vector
);
782 static int virtio_pci_vq_vector_unmask(VirtIOPCIProxy
*proxy
,
783 unsigned int queue_no
,
787 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
788 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
789 VirtQueue
*vq
= virtio_get_queue(vdev
, queue_no
);
790 EventNotifier
*n
= virtio_queue_get_guest_notifier(vq
);
794 if (proxy
->vector_irqfd
) {
795 irqfd
= &proxy
->vector_irqfd
[vector
];
796 if (irqfd
->msg
.data
!= msg
.data
|| irqfd
->msg
.address
!= msg
.address
) {
797 ret
= kvm_irqchip_update_msi_route(kvm_state
, irqfd
->virq
, msg
,
802 kvm_irqchip_commit_routes(kvm_state
);
806 /* If guest supports masking, irqfd is already setup, unmask it.
807 * Otherwise, set it up now.
809 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
810 k
->guest_notifier_mask(vdev
, queue_no
, false);
811 /* Test after unmasking to avoid losing events. */
812 if (k
->guest_notifier_pending
&&
813 k
->guest_notifier_pending(vdev
, queue_no
)) {
814 event_notifier_set(n
);
817 ret
= kvm_virtio_pci_irqfd_use(proxy
, queue_no
, vector
);
822 static void virtio_pci_vq_vector_mask(VirtIOPCIProxy
*proxy
,
823 unsigned int queue_no
,
826 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
827 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
829 /* If guest supports masking, keep irqfd but mask it.
830 * Otherwise, clean it up now.
832 if (vdev
->use_guest_notifier_mask
&& k
->guest_notifier_mask
) {
833 k
->guest_notifier_mask(vdev
, queue_no
, true);
835 kvm_virtio_pci_irqfd_release(proxy
, queue_no
, vector
);
839 static int virtio_pci_vector_unmask(PCIDevice
*dev
, unsigned vector
,
842 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
843 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
844 VirtQueue
*vq
= virtio_vector_first_queue(vdev
, vector
);
845 int ret
, index
, unmasked
= 0;
848 index
= virtio_get_queue_index(vq
);
849 if (!virtio_queue_get_num(vdev
, index
)) {
852 if (index
< proxy
->nvqs_with_notifiers
) {
853 ret
= virtio_pci_vq_vector_unmask(proxy
, index
, vector
, msg
);
859 vq
= virtio_vector_next_queue(vq
);
865 vq
= virtio_vector_first_queue(vdev
, vector
);
866 while (vq
&& unmasked
>= 0) {
867 index
= virtio_get_queue_index(vq
);
868 if (index
< proxy
->nvqs_with_notifiers
) {
869 virtio_pci_vq_vector_mask(proxy
, index
, vector
);
872 vq
= virtio_vector_next_queue(vq
);
877 static void virtio_pci_vector_mask(PCIDevice
*dev
, unsigned vector
)
879 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
880 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
881 VirtQueue
*vq
= virtio_vector_first_queue(vdev
, vector
);
885 index
= virtio_get_queue_index(vq
);
886 if (!virtio_queue_get_num(vdev
, index
)) {
889 if (index
< proxy
->nvqs_with_notifiers
) {
890 virtio_pci_vq_vector_mask(proxy
, index
, vector
);
892 vq
= virtio_vector_next_queue(vq
);
896 static void virtio_pci_vector_poll(PCIDevice
*dev
,
897 unsigned int vector_start
,
898 unsigned int vector_end
)
900 VirtIOPCIProxy
*proxy
= container_of(dev
, VirtIOPCIProxy
, pci_dev
);
901 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
902 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
905 EventNotifier
*notifier
;
908 for (queue_no
= 0; queue_no
< proxy
->nvqs_with_notifiers
; queue_no
++) {
909 if (!virtio_queue_get_num(vdev
, queue_no
)) {
912 vector
= virtio_queue_vector(vdev
, queue_no
);
913 if (vector
< vector_start
|| vector
>= vector_end
||
914 !msix_is_masked(dev
, vector
)) {
917 vq
= virtio_get_queue(vdev
, queue_no
);
918 notifier
= virtio_queue_get_guest_notifier(vq
);
919 if (k
->guest_notifier_pending
) {
920 if (k
->guest_notifier_pending(vdev
, queue_no
)) {
921 msix_set_pending(dev
, vector
);
923 } else if (event_notifier_test_and_clear(notifier
)) {
924 msix_set_pending(dev
, vector
);
929 static int virtio_pci_set_guest_notifier(DeviceState
*d
, int n
, bool assign
,
932 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
933 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
934 VirtioDeviceClass
*vdc
= VIRTIO_DEVICE_GET_CLASS(vdev
);
935 VirtQueue
*vq
= virtio_get_queue(vdev
, n
);
936 EventNotifier
*notifier
= virtio_queue_get_guest_notifier(vq
);
939 int r
= event_notifier_init(notifier
, 0);
943 virtio_queue_set_guest_notifier_fd_handler(vq
, true, with_irqfd
);
945 virtio_queue_set_guest_notifier_fd_handler(vq
, false, with_irqfd
);
946 event_notifier_cleanup(notifier
);
949 if (!msix_enabled(&proxy
->pci_dev
) &&
950 vdev
->use_guest_notifier_mask
&&
951 vdc
->guest_notifier_mask
) {
952 vdc
->guest_notifier_mask(vdev
, n
, !assign
);
958 static bool virtio_pci_query_guest_notifiers(DeviceState
*d
)
960 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
961 return msix_enabled(&proxy
->pci_dev
);
964 static int virtio_pci_set_guest_notifiers(DeviceState
*d
, int nvqs
, bool assign
)
966 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
967 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
968 VirtioDeviceClass
*k
= VIRTIO_DEVICE_GET_CLASS(vdev
);
970 bool with_irqfd
= msix_enabled(&proxy
->pci_dev
) &&
971 kvm_msi_via_irqfd_enabled();
973 nvqs
= MIN(nvqs
, VIRTIO_QUEUE_MAX
);
975 /* When deassigning, pass a consistent nvqs value
976 * to avoid leaking notifiers.
978 assert(assign
|| nvqs
== proxy
->nvqs_with_notifiers
);
980 proxy
->nvqs_with_notifiers
= nvqs
;
982 /* Must unset vector notifier while guest notifier is still assigned */
983 if ((proxy
->vector_irqfd
|| k
->guest_notifier_mask
) && !assign
) {
984 msix_unset_vector_notifiers(&proxy
->pci_dev
);
985 if (proxy
->vector_irqfd
) {
986 kvm_virtio_pci_vector_release(proxy
, nvqs
);
987 g_free(proxy
->vector_irqfd
);
988 proxy
->vector_irqfd
= NULL
;
992 for (n
= 0; n
< nvqs
; n
++) {
993 if (!virtio_queue_get_num(vdev
, n
)) {
997 r
= virtio_pci_set_guest_notifier(d
, n
, assign
, with_irqfd
);
1003 /* Must set vector notifier after guest notifier has been assigned */
1004 if ((with_irqfd
|| k
->guest_notifier_mask
) && assign
) {
1006 proxy
->vector_irqfd
=
1007 g_malloc0(sizeof(*proxy
->vector_irqfd
) *
1008 msix_nr_vectors_allocated(&proxy
->pci_dev
));
1009 r
= kvm_virtio_pci_vector_use(proxy
, nvqs
);
1014 r
= msix_set_vector_notifiers(&proxy
->pci_dev
,
1015 virtio_pci_vector_unmask
,
1016 virtio_pci_vector_mask
,
1017 virtio_pci_vector_poll
);
1019 goto notifiers_error
;
1028 kvm_virtio_pci_vector_release(proxy
, nvqs
);
1032 /* We get here on assignment failure. Recover by undoing for VQs 0 .. n. */
1035 virtio_pci_set_guest_notifier(d
, n
, !assign
, with_irqfd
);
1040 static void virtio_pci_vmstate_change(DeviceState
*d
, bool running
)
1042 VirtIOPCIProxy
*proxy
= to_virtio_pci_proxy(d
);
1043 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1046 /* Old QEMU versions did not set bus master enable on status write.
1047 * Detect DRIVER set and enable it.
1049 if ((proxy
->flags
& VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION
) &&
1050 (vdev
->status
& VIRTIO_CONFIG_S_DRIVER
) &&
1051 !(proxy
->pci_dev
.config
[PCI_COMMAND
] & PCI_COMMAND_MASTER
)) {
1052 pci_default_write_config(&proxy
->pci_dev
, PCI_COMMAND
,
1053 proxy
->pci_dev
.config
[PCI_COMMAND
] |
1054 PCI_COMMAND_MASTER
, 1);
1056 virtio_pci_start_ioeventfd(proxy
);
1058 virtio_pci_stop_ioeventfd(proxy
);
1062 #ifdef CONFIG_VIRTFS
1063 static void virtio_9p_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1065 V9fsPCIState
*dev
= VIRTIO_9P_PCI(vpci_dev
);
1066 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1068 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
1069 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1072 static Property virtio_9p_pci_properties
[] = {
1073 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
1074 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
1075 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
1076 DEFINE_PROP_END_OF_LIST(),
1079 static void virtio_9p_pci_class_init(ObjectClass
*klass
, void *data
)
1081 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1082 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
1083 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
1085 k
->realize
= virtio_9p_pci_realize
;
1086 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1087 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_9P
;
1088 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1089 pcidev_k
->class_id
= 0x2;
1090 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1091 dc
->props
= virtio_9p_pci_properties
;
1094 static void virtio_9p_pci_instance_init(Object
*obj
)
1096 V9fsPCIState
*dev
= VIRTIO_9P_PCI(obj
);
1098 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1102 static const TypeInfo virtio_9p_pci_info
= {
1103 .name
= TYPE_VIRTIO_9P_PCI
,
1104 .parent
= TYPE_VIRTIO_PCI
,
1105 .instance_size
= sizeof(V9fsPCIState
),
1106 .instance_init
= virtio_9p_pci_instance_init
,
1107 .class_init
= virtio_9p_pci_class_init
,
1109 #endif /* CONFIG_VIRTFS */
1112 * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
1115 static int virtio_pci_query_nvectors(DeviceState
*d
)
1117 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1119 return proxy
->nvectors
;
1122 static AddressSpace
*virtio_pci_get_dma_as(DeviceState
*d
)
1124 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1125 PCIDevice
*dev
= &proxy
->pci_dev
;
1127 return pci_get_address_space(dev
);
1130 static int virtio_pci_add_mem_cap(VirtIOPCIProxy
*proxy
,
1131 struct virtio_pci_cap
*cap
)
1133 PCIDevice
*dev
= &proxy
->pci_dev
;
1136 offset
= pci_add_capability(dev
, PCI_CAP_ID_VNDR
, 0,
1137 cap
->cap_len
, &error_abort
);
1139 assert(cap
->cap_len
>= sizeof *cap
);
1140 memcpy(dev
->config
+ offset
+ PCI_CAP_FLAGS
, &cap
->cap_len
,
1141 cap
->cap_len
- PCI_CAP_FLAGS
);
1146 static uint64_t virtio_pci_common_read(void *opaque
, hwaddr addr
,
1149 VirtIOPCIProxy
*proxy
= opaque
;
1150 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1155 case VIRTIO_PCI_COMMON_DFSELECT
:
1156 val
= proxy
->dfselect
;
1158 case VIRTIO_PCI_COMMON_DF
:
1159 if (proxy
->dfselect
<= 1) {
1160 VirtioDeviceClass
*vdc
= VIRTIO_DEVICE_GET_CLASS(vdev
);
1162 val
= (vdev
->host_features
& ~vdc
->legacy_features
) >>
1163 (32 * proxy
->dfselect
);
1166 case VIRTIO_PCI_COMMON_GFSELECT
:
1167 val
= proxy
->gfselect
;
1169 case VIRTIO_PCI_COMMON_GF
:
1170 if (proxy
->gfselect
< ARRAY_SIZE(proxy
->guest_features
)) {
1171 val
= proxy
->guest_features
[proxy
->gfselect
];
1174 case VIRTIO_PCI_COMMON_MSIX
:
1175 val
= vdev
->config_vector
;
1177 case VIRTIO_PCI_COMMON_NUMQ
:
1178 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; ++i
) {
1179 if (virtio_queue_get_num(vdev
, i
)) {
1184 case VIRTIO_PCI_COMMON_STATUS
:
1187 case VIRTIO_PCI_COMMON_CFGGENERATION
:
1188 val
= vdev
->generation
;
1190 case VIRTIO_PCI_COMMON_Q_SELECT
:
1191 val
= vdev
->queue_sel
;
1193 case VIRTIO_PCI_COMMON_Q_SIZE
:
1194 val
= virtio_queue_get_num(vdev
, vdev
->queue_sel
);
1196 case VIRTIO_PCI_COMMON_Q_MSIX
:
1197 val
= virtio_queue_vector(vdev
, vdev
->queue_sel
);
1199 case VIRTIO_PCI_COMMON_Q_ENABLE
:
1200 val
= proxy
->vqs
[vdev
->queue_sel
].enabled
;
1202 case VIRTIO_PCI_COMMON_Q_NOFF
:
1203 /* Simply map queues in order */
1204 val
= vdev
->queue_sel
;
1206 case VIRTIO_PCI_COMMON_Q_DESCLO
:
1207 val
= proxy
->vqs
[vdev
->queue_sel
].desc
[0];
1209 case VIRTIO_PCI_COMMON_Q_DESCHI
:
1210 val
= proxy
->vqs
[vdev
->queue_sel
].desc
[1];
1212 case VIRTIO_PCI_COMMON_Q_AVAILLO
:
1213 val
= proxy
->vqs
[vdev
->queue_sel
].avail
[0];
1215 case VIRTIO_PCI_COMMON_Q_AVAILHI
:
1216 val
= proxy
->vqs
[vdev
->queue_sel
].avail
[1];
1218 case VIRTIO_PCI_COMMON_Q_USEDLO
:
1219 val
= proxy
->vqs
[vdev
->queue_sel
].used
[0];
1221 case VIRTIO_PCI_COMMON_Q_USEDHI
:
1222 val
= proxy
->vqs
[vdev
->queue_sel
].used
[1];
1231 static void virtio_pci_common_write(void *opaque
, hwaddr addr
,
1232 uint64_t val
, unsigned size
)
1234 VirtIOPCIProxy
*proxy
= opaque
;
1235 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1238 case VIRTIO_PCI_COMMON_DFSELECT
:
1239 proxy
->dfselect
= val
;
1241 case VIRTIO_PCI_COMMON_GFSELECT
:
1242 proxy
->gfselect
= val
;
1244 case VIRTIO_PCI_COMMON_GF
:
1245 if (proxy
->gfselect
< ARRAY_SIZE(proxy
->guest_features
)) {
1246 proxy
->guest_features
[proxy
->gfselect
] = val
;
1247 virtio_set_features(vdev
,
1248 (((uint64_t)proxy
->guest_features
[1]) << 32) |
1249 proxy
->guest_features
[0]);
1252 case VIRTIO_PCI_COMMON_MSIX
:
1253 msix_vector_unuse(&proxy
->pci_dev
, vdev
->config_vector
);
1254 /* Make it possible for guest to discover an error took place. */
1255 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0) {
1256 val
= VIRTIO_NO_VECTOR
;
1258 vdev
->config_vector
= val
;
1260 case VIRTIO_PCI_COMMON_STATUS
:
1261 if (!(val
& VIRTIO_CONFIG_S_DRIVER_OK
)) {
1262 virtio_pci_stop_ioeventfd(proxy
);
1265 virtio_set_status(vdev
, val
& 0xFF);
1267 if (val
& VIRTIO_CONFIG_S_DRIVER_OK
) {
1268 virtio_pci_start_ioeventfd(proxy
);
1271 if (vdev
->status
== 0) {
1272 virtio_pci_reset(DEVICE(proxy
));
1276 case VIRTIO_PCI_COMMON_Q_SELECT
:
1277 if (val
< VIRTIO_QUEUE_MAX
) {
1278 vdev
->queue_sel
= val
;
1281 case VIRTIO_PCI_COMMON_Q_SIZE
:
1282 proxy
->vqs
[vdev
->queue_sel
].num
= val
;
1284 case VIRTIO_PCI_COMMON_Q_MSIX
:
1285 msix_vector_unuse(&proxy
->pci_dev
,
1286 virtio_queue_vector(vdev
, vdev
->queue_sel
));
1287 /* Make it possible for guest to discover an error took place. */
1288 if (msix_vector_use(&proxy
->pci_dev
, val
) < 0) {
1289 val
= VIRTIO_NO_VECTOR
;
1291 virtio_queue_set_vector(vdev
, vdev
->queue_sel
, val
);
1293 case VIRTIO_PCI_COMMON_Q_ENABLE
:
1294 virtio_queue_set_num(vdev
, vdev
->queue_sel
,
1295 proxy
->vqs
[vdev
->queue_sel
].num
);
1296 virtio_queue_set_rings(vdev
, vdev
->queue_sel
,
1297 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].desc
[1]) << 32 |
1298 proxy
->vqs
[vdev
->queue_sel
].desc
[0],
1299 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].avail
[1]) << 32 |
1300 proxy
->vqs
[vdev
->queue_sel
].avail
[0],
1301 ((uint64_t)proxy
->vqs
[vdev
->queue_sel
].used
[1]) << 32 |
1302 proxy
->vqs
[vdev
->queue_sel
].used
[0]);
1303 proxy
->vqs
[vdev
->queue_sel
].enabled
= 1;
1305 case VIRTIO_PCI_COMMON_Q_DESCLO
:
1306 proxy
->vqs
[vdev
->queue_sel
].desc
[0] = val
;
1308 case VIRTIO_PCI_COMMON_Q_DESCHI
:
1309 proxy
->vqs
[vdev
->queue_sel
].desc
[1] = val
;
1311 case VIRTIO_PCI_COMMON_Q_AVAILLO
:
1312 proxy
->vqs
[vdev
->queue_sel
].avail
[0] = val
;
1314 case VIRTIO_PCI_COMMON_Q_AVAILHI
:
1315 proxy
->vqs
[vdev
->queue_sel
].avail
[1] = val
;
1317 case VIRTIO_PCI_COMMON_Q_USEDLO
:
1318 proxy
->vqs
[vdev
->queue_sel
].used
[0] = val
;
1320 case VIRTIO_PCI_COMMON_Q_USEDHI
:
1321 proxy
->vqs
[vdev
->queue_sel
].used
[1] = val
;
1329 static uint64_t virtio_pci_notify_read(void *opaque
, hwaddr addr
,
1335 static void virtio_pci_notify_write(void *opaque
, hwaddr addr
,
1336 uint64_t val
, unsigned size
)
1338 VirtIODevice
*vdev
= opaque
;
1339 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(DEVICE(vdev
)->parent_bus
->parent
);
1340 unsigned queue
= addr
/ virtio_pci_queue_mem_mult(proxy
);
1342 if (queue
< VIRTIO_QUEUE_MAX
) {
1343 virtio_queue_notify(vdev
, queue
);
1347 static void virtio_pci_notify_write_pio(void *opaque
, hwaddr addr
,
1348 uint64_t val
, unsigned size
)
1350 VirtIODevice
*vdev
= opaque
;
1351 unsigned queue
= val
;
1353 if (queue
< VIRTIO_QUEUE_MAX
) {
1354 virtio_queue_notify(vdev
, queue
);
1358 static uint64_t virtio_pci_isr_read(void *opaque
, hwaddr addr
,
1361 VirtIOPCIProxy
*proxy
= opaque
;
1362 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1363 uint64_t val
= atomic_xchg(&vdev
->isr
, 0);
1364 pci_irq_deassert(&proxy
->pci_dev
);
1369 static void virtio_pci_isr_write(void *opaque
, hwaddr addr
,
1370 uint64_t val
, unsigned size
)
1374 static uint64_t virtio_pci_device_read(void *opaque
, hwaddr addr
,
1377 VirtIODevice
*vdev
= opaque
;
1382 val
= virtio_config_modern_readb(vdev
, addr
);
1385 val
= virtio_config_modern_readw(vdev
, addr
);
1388 val
= virtio_config_modern_readl(vdev
, addr
);
1394 static void virtio_pci_device_write(void *opaque
, hwaddr addr
,
1395 uint64_t val
, unsigned size
)
1397 VirtIODevice
*vdev
= opaque
;
1400 virtio_config_modern_writeb(vdev
, addr
, val
);
1403 virtio_config_modern_writew(vdev
, addr
, val
);
1406 virtio_config_modern_writel(vdev
, addr
, val
);
1411 static void virtio_pci_modern_regions_init(VirtIOPCIProxy
*proxy
)
1413 static const MemoryRegionOps common_ops
= {
1414 .read
= virtio_pci_common_read
,
1415 .write
= virtio_pci_common_write
,
1417 .min_access_size
= 1,
1418 .max_access_size
= 4,
1420 .endianness
= DEVICE_LITTLE_ENDIAN
,
1422 static const MemoryRegionOps isr_ops
= {
1423 .read
= virtio_pci_isr_read
,
1424 .write
= virtio_pci_isr_write
,
1426 .min_access_size
= 1,
1427 .max_access_size
= 4,
1429 .endianness
= DEVICE_LITTLE_ENDIAN
,
1431 static const MemoryRegionOps device_ops
= {
1432 .read
= virtio_pci_device_read
,
1433 .write
= virtio_pci_device_write
,
1435 .min_access_size
= 1,
1436 .max_access_size
= 4,
1438 .endianness
= DEVICE_LITTLE_ENDIAN
,
1440 static const MemoryRegionOps notify_ops
= {
1441 .read
= virtio_pci_notify_read
,
1442 .write
= virtio_pci_notify_write
,
1444 .min_access_size
= 1,
1445 .max_access_size
= 4,
1447 .endianness
= DEVICE_LITTLE_ENDIAN
,
1449 static const MemoryRegionOps notify_pio_ops
= {
1450 .read
= virtio_pci_notify_read
,
1451 .write
= virtio_pci_notify_write_pio
,
1453 .min_access_size
= 1,
1454 .max_access_size
= 4,
1456 .endianness
= DEVICE_LITTLE_ENDIAN
,
1460 memory_region_init_io(&proxy
->common
.mr
, OBJECT(proxy
),
1463 "virtio-pci-common",
1464 proxy
->common
.size
);
1466 memory_region_init_io(&proxy
->isr
.mr
, OBJECT(proxy
),
1472 memory_region_init_io(&proxy
->device
.mr
, OBJECT(proxy
),
1474 virtio_bus_get_device(&proxy
->bus
),
1475 "virtio-pci-device",
1476 proxy
->device
.size
);
1478 memory_region_init_io(&proxy
->notify
.mr
, OBJECT(proxy
),
1480 virtio_bus_get_device(&proxy
->bus
),
1481 "virtio-pci-notify",
1482 proxy
->notify
.size
);
1484 memory_region_init_io(&proxy
->notify_pio
.mr
, OBJECT(proxy
),
1486 virtio_bus_get_device(&proxy
->bus
),
1487 "virtio-pci-notify-pio",
1488 proxy
->notify_pio
.size
);
1491 static void virtio_pci_modern_region_map(VirtIOPCIProxy
*proxy
,
1492 VirtIOPCIRegion
*region
,
1493 struct virtio_pci_cap
*cap
,
1497 memory_region_add_subregion(mr
, region
->offset
, ®ion
->mr
);
1499 cap
->cfg_type
= region
->type
;
1501 cap
->offset
= cpu_to_le32(region
->offset
);
1502 cap
->length
= cpu_to_le32(region
->size
);
1503 virtio_pci_add_mem_cap(proxy
, cap
);
1507 static void virtio_pci_modern_mem_region_map(VirtIOPCIProxy
*proxy
,
1508 VirtIOPCIRegion
*region
,
1509 struct virtio_pci_cap
*cap
)
1511 virtio_pci_modern_region_map(proxy
, region
, cap
,
1512 &proxy
->modern_bar
, proxy
->modern_mem_bar_idx
);
1515 static void virtio_pci_modern_io_region_map(VirtIOPCIProxy
*proxy
,
1516 VirtIOPCIRegion
*region
,
1517 struct virtio_pci_cap
*cap
)
1519 virtio_pci_modern_region_map(proxy
, region
, cap
,
1520 &proxy
->io_bar
, proxy
->modern_io_bar_idx
);
1523 static void virtio_pci_modern_mem_region_unmap(VirtIOPCIProxy
*proxy
,
1524 VirtIOPCIRegion
*region
)
1526 memory_region_del_subregion(&proxy
->modern_bar
,
1530 static void virtio_pci_modern_io_region_unmap(VirtIOPCIProxy
*proxy
,
1531 VirtIOPCIRegion
*region
)
1533 memory_region_del_subregion(&proxy
->io_bar
,
1537 static void virtio_pci_pre_plugged(DeviceState
*d
, Error
**errp
)
1539 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1540 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1542 if (virtio_pci_modern(proxy
)) {
1543 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_VERSION_1
);
1546 virtio_add_feature(&vdev
->host_features
, VIRTIO_F_BAD_FEATURE
);
1549 /* This is called by virtio-bus just after the device is plugged. */
1550 static void virtio_pci_device_plugged(DeviceState
*d
, Error
**errp
)
1552 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1553 VirtioBusState
*bus
= &proxy
->bus
;
1554 bool legacy
= virtio_pci_legacy(proxy
);
1556 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
1559 VirtIODevice
*vdev
= virtio_bus_get_device(&proxy
->bus
);
1562 * Virtio capabilities present without
1563 * VIRTIO_F_VERSION_1 confuses guests
1565 if (!proxy
->ignore_backend_features
&&
1566 !virtio_has_feature(vdev
->host_features
, VIRTIO_F_VERSION_1
)) {
1567 virtio_pci_disable_modern(proxy
);
1570 error_setg(errp
, "Device doesn't support modern mode, and legacy"
1571 " mode is disabled");
1572 error_append_hint(errp
, "Set disable-legacy to off\n");
1578 modern
= virtio_pci_modern(proxy
);
1580 config
= proxy
->pci_dev
.config
;
1581 if (proxy
->class_code
) {
1582 pci_config_set_class(config
, proxy
->class_code
);
1586 if (virtio_host_has_feature(vdev
, VIRTIO_F_IOMMU_PLATFORM
)) {
1587 error_setg(errp
, "VIRTIO_F_IOMMU_PLATFORM was supported by"
1588 " neither legacy nor transitional device");
1592 * Legacy and transitional devices use specific subsystem IDs.
1593 * Note that the subsystem vendor ID (config + PCI_SUBSYSTEM_VENDOR_ID)
1594 * is set to PCI_SUBVENDOR_ID_REDHAT_QUMRANET by default.
1596 pci_set_word(config
+ PCI_SUBSYSTEM_ID
, virtio_bus_get_vdev_id(bus
));
1598 /* pure virtio-1.0 */
1599 pci_set_word(config
+ PCI_VENDOR_ID
,
1600 PCI_VENDOR_ID_REDHAT_QUMRANET
);
1601 pci_set_word(config
+ PCI_DEVICE_ID
,
1602 0x1040 + virtio_bus_get_vdev_id(bus
));
1603 pci_config_set_revision(config
, 1);
1605 config
[PCI_INTERRUPT_PIN
] = 1;
1609 struct virtio_pci_cap cap
= {
1610 .cap_len
= sizeof cap
,
1612 struct virtio_pci_notify_cap notify
= {
1613 .cap
.cap_len
= sizeof notify
,
1614 .notify_off_multiplier
=
1615 cpu_to_le32(virtio_pci_queue_mem_mult(proxy
)),
1617 struct virtio_pci_cfg_cap cfg
= {
1618 .cap
.cap_len
= sizeof cfg
,
1619 .cap
.cfg_type
= VIRTIO_PCI_CAP_PCI_CFG
,
1621 struct virtio_pci_notify_cap notify_pio
= {
1622 .cap
.cap_len
= sizeof notify
,
1623 .notify_off_multiplier
= cpu_to_le32(0x0),
1626 struct virtio_pci_cfg_cap
*cfg_mask
;
1628 virtio_pci_modern_regions_init(proxy
);
1630 virtio_pci_modern_mem_region_map(proxy
, &proxy
->common
, &cap
);
1631 virtio_pci_modern_mem_region_map(proxy
, &proxy
->isr
, &cap
);
1632 virtio_pci_modern_mem_region_map(proxy
, &proxy
->device
, &cap
);
1633 virtio_pci_modern_mem_region_map(proxy
, &proxy
->notify
, ¬ify
.cap
);
1636 memory_region_init(&proxy
->io_bar
, OBJECT(proxy
),
1637 "virtio-pci-io", 0x4);
1639 pci_register_bar(&proxy
->pci_dev
, proxy
->modern_io_bar_idx
,
1640 PCI_BASE_ADDRESS_SPACE_IO
, &proxy
->io_bar
);
1642 virtio_pci_modern_io_region_map(proxy
, &proxy
->notify_pio
,
1646 pci_register_bar(&proxy
->pci_dev
, proxy
->modern_mem_bar_idx
,
1647 PCI_BASE_ADDRESS_SPACE_MEMORY
|
1648 PCI_BASE_ADDRESS_MEM_PREFETCH
|
1649 PCI_BASE_ADDRESS_MEM_TYPE_64
,
1650 &proxy
->modern_bar
);
1652 proxy
->config_cap
= virtio_pci_add_mem_cap(proxy
, &cfg
.cap
);
1653 cfg_mask
= (void *)(proxy
->pci_dev
.wmask
+ proxy
->config_cap
);
1654 pci_set_byte(&cfg_mask
->cap
.bar
, ~0x0);
1655 pci_set_long((uint8_t *)&cfg_mask
->cap
.offset
, ~0x0);
1656 pci_set_long((uint8_t *)&cfg_mask
->cap
.length
, ~0x0);
1657 pci_set_long(cfg_mask
->pci_cfg_data
, ~0x0);
1660 if (proxy
->nvectors
) {
1661 int err
= msix_init_exclusive_bar(&proxy
->pci_dev
, proxy
->nvectors
,
1662 proxy
->msix_bar_idx
, NULL
);
1664 /* Notice when a system that supports MSIx can't initialize it */
1665 if (err
!= -ENOTSUP
) {
1666 error_report("unable to init msix vectors to %" PRIu32
,
1669 proxy
->nvectors
= 0;
1673 proxy
->pci_dev
.config_write
= virtio_write_config
;
1674 proxy
->pci_dev
.config_read
= virtio_read_config
;
1677 size
= VIRTIO_PCI_REGION_SIZE(&proxy
->pci_dev
)
1678 + virtio_bus_get_vdev_config_len(bus
);
1679 size
= pow2ceil(size
);
1681 memory_region_init_io(&proxy
->bar
, OBJECT(proxy
),
1682 &virtio_pci_config_ops
,
1683 proxy
, "virtio-pci", size
);
1685 pci_register_bar(&proxy
->pci_dev
, proxy
->legacy_io_bar_idx
,
1686 PCI_BASE_ADDRESS_SPACE_IO
, &proxy
->bar
);
1690 static void virtio_pci_device_unplugged(DeviceState
*d
)
1692 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(d
);
1693 bool modern
= virtio_pci_modern(proxy
);
1694 bool modern_pio
= proxy
->flags
& VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY
;
1696 virtio_pci_stop_ioeventfd(proxy
);
1699 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->common
);
1700 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->isr
);
1701 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->device
);
1702 virtio_pci_modern_mem_region_unmap(proxy
, &proxy
->notify
);
1704 virtio_pci_modern_io_region_unmap(proxy
, &proxy
->notify_pio
);
1709 static void virtio_pci_realize(PCIDevice
*pci_dev
, Error
**errp
)
1711 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(pci_dev
);
1712 VirtioPCIClass
*k
= VIRTIO_PCI_GET_CLASS(pci_dev
);
1713 bool pcie_port
= pci_bus_is_express(pci_get_bus(pci_dev
)) &&
1714 !pci_bus_is_root(pci_get_bus(pci_dev
));
1716 if (kvm_enabled() && !kvm_has_many_ioeventfds()) {
1717 proxy
->flags
&= ~VIRTIO_PCI_FLAG_USE_IOEVENTFD
;
1721 * virtio pci bar layout used by default.
1722 * subclasses can re-arrange things if needed.
1724 * region 0 -- virtio legacy io bar
1725 * region 1 -- msi-x bar
1726 * region 4+5 -- virtio modern memory (64bit) bar
1729 proxy
->legacy_io_bar_idx
= 0;
1730 proxy
->msix_bar_idx
= 1;
1731 proxy
->modern_io_bar_idx
= 2;
1732 proxy
->modern_mem_bar_idx
= 4;
1734 proxy
->common
.offset
= 0x0;
1735 proxy
->common
.size
= 0x1000;
1736 proxy
->common
.type
= VIRTIO_PCI_CAP_COMMON_CFG
;
1738 proxy
->isr
.offset
= 0x1000;
1739 proxy
->isr
.size
= 0x1000;
1740 proxy
->isr
.type
= VIRTIO_PCI_CAP_ISR_CFG
;
1742 proxy
->device
.offset
= 0x2000;
1743 proxy
->device
.size
= 0x1000;
1744 proxy
->device
.type
= VIRTIO_PCI_CAP_DEVICE_CFG
;
1746 proxy
->notify
.offset
= 0x3000;
1747 proxy
->notify
.size
= virtio_pci_queue_mem_mult(proxy
) * VIRTIO_QUEUE_MAX
;
1748 proxy
->notify
.type
= VIRTIO_PCI_CAP_NOTIFY_CFG
;
1750 proxy
->notify_pio
.offset
= 0x0;
1751 proxy
->notify_pio
.size
= 0x4;
1752 proxy
->notify_pio
.type
= VIRTIO_PCI_CAP_NOTIFY_CFG
;
1754 /* subclasses can enforce modern, so do this unconditionally */
1755 memory_region_init(&proxy
->modern_bar
, OBJECT(proxy
), "virtio-pci",
1756 /* PCI BAR regions must be powers of 2 */
1757 pow2ceil(proxy
->notify
.offset
+ proxy
->notify
.size
));
1759 if (proxy
->disable_legacy
== ON_OFF_AUTO_AUTO
) {
1760 proxy
->disable_legacy
= pcie_port
? ON_OFF_AUTO_ON
: ON_OFF_AUTO_OFF
;
1763 if (!virtio_pci_modern(proxy
) && !virtio_pci_legacy(proxy
)) {
1764 error_setg(errp
, "device cannot work as neither modern nor legacy mode"
1766 error_append_hint(errp
, "Set either disable-modern or disable-legacy"
1771 if (pcie_port
&& pci_is_express(pci_dev
)) {
1774 pos
= pcie_endpoint_cap_init(pci_dev
, 0);
1777 pos
= pci_add_capability(pci_dev
, PCI_CAP_ID_PM
, 0,
1778 PCI_PM_SIZEOF
, errp
);
1783 pci_dev
->exp
.pm_cap
= pos
;
1786 * Indicates that this function complies with revision 1.2 of the
1787 * PCI Power Management Interface Specification.
1789 pci_set_word(pci_dev
->config
+ pos
+ PCI_PM_PMC
, 0x3);
1791 if (proxy
->flags
& VIRTIO_PCI_FLAG_INIT_DEVERR
) {
1792 /* Init error enabling flags */
1793 pcie_cap_deverr_init(pci_dev
);
1796 if (proxy
->flags
& VIRTIO_PCI_FLAG_INIT_LNKCTL
) {
1797 /* Init Link Control Register */
1798 pcie_cap_lnkctl_init(pci_dev
);
1801 if (proxy
->flags
& VIRTIO_PCI_FLAG_INIT_PM
) {
1802 /* Init Power Management Control Register */
1803 pci_set_word(pci_dev
->wmask
+ pos
+ PCI_PM_CTRL
,
1804 PCI_PM_CTRL_STATE_MASK
);
1807 if (proxy
->flags
& VIRTIO_PCI_FLAG_ATS
) {
1808 pcie_ats_init(pci_dev
, 256);
1813 * make future invocations of pci_is_express() return false
1814 * and pci_config_size() return PCI_CONFIG_SPACE_SIZE.
1816 pci_dev
->cap_present
&= ~QEMU_PCI_CAP_EXPRESS
;
1819 virtio_pci_bus_new(&proxy
->bus
, sizeof(proxy
->bus
), proxy
);
1821 k
->realize(proxy
, errp
);
1825 static void virtio_pci_exit(PCIDevice
*pci_dev
)
1827 msix_uninit_exclusive_bar(pci_dev
);
1830 static void virtio_pci_reset(DeviceState
*qdev
)
1832 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(qdev
);
1833 VirtioBusState
*bus
= VIRTIO_BUS(&proxy
->bus
);
1834 PCIDevice
*dev
= PCI_DEVICE(qdev
);
1837 virtio_pci_stop_ioeventfd(proxy
);
1838 virtio_bus_reset(bus
);
1839 msix_unuse_all_vectors(&proxy
->pci_dev
);
1841 for (i
= 0; i
< VIRTIO_QUEUE_MAX
; i
++) {
1842 proxy
->vqs
[i
].enabled
= 0;
1843 proxy
->vqs
[i
].num
= 0;
1844 proxy
->vqs
[i
].desc
[0] = proxy
->vqs
[i
].desc
[1] = 0;
1845 proxy
->vqs
[i
].avail
[0] = proxy
->vqs
[i
].avail
[1] = 0;
1846 proxy
->vqs
[i
].used
[0] = proxy
->vqs
[i
].used
[1] = 0;
1849 if (pci_is_express(dev
)) {
1850 pcie_cap_deverr_reset(dev
);
1851 pcie_cap_lnkctl_reset(dev
);
1853 pci_set_word(dev
->config
+ dev
->exp
.pm_cap
+ PCI_PM_CTRL
, 0);
1857 static Property virtio_pci_properties
[] = {
1858 DEFINE_PROP_BIT("virtio-pci-bus-master-bug-migration", VirtIOPCIProxy
, flags
,
1859 VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT
, false),
1860 DEFINE_PROP_ON_OFF_AUTO("disable-legacy", VirtIOPCIProxy
, disable_legacy
,
1862 DEFINE_PROP_BOOL("disable-modern", VirtIOPCIProxy
, disable_modern
, false),
1863 DEFINE_PROP_BIT("migrate-extra", VirtIOPCIProxy
, flags
,
1864 VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT
, true),
1865 DEFINE_PROP_BIT("modern-pio-notify", VirtIOPCIProxy
, flags
,
1866 VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT
, false),
1867 DEFINE_PROP_BIT("x-disable-pcie", VirtIOPCIProxy
, flags
,
1868 VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT
, false),
1869 DEFINE_PROP_BIT("page-per-vq", VirtIOPCIProxy
, flags
,
1870 VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT
, false),
1871 DEFINE_PROP_BOOL("x-ignore-backend-features", VirtIOPCIProxy
,
1872 ignore_backend_features
, false),
1873 DEFINE_PROP_BIT("ats", VirtIOPCIProxy
, flags
,
1874 VIRTIO_PCI_FLAG_ATS_BIT
, false),
1875 DEFINE_PROP_BIT("x-pcie-deverr-init", VirtIOPCIProxy
, flags
,
1876 VIRTIO_PCI_FLAG_INIT_DEVERR_BIT
, true),
1877 DEFINE_PROP_BIT("x-pcie-lnkctl-init", VirtIOPCIProxy
, flags
,
1878 VIRTIO_PCI_FLAG_INIT_LNKCTL_BIT
, true),
1879 DEFINE_PROP_BIT("x-pcie-pm-init", VirtIOPCIProxy
, flags
,
1880 VIRTIO_PCI_FLAG_INIT_PM_BIT
, true),
1881 DEFINE_PROP_END_OF_LIST(),
1884 static void virtio_pci_dc_realize(DeviceState
*qdev
, Error
**errp
)
1886 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_GET_CLASS(qdev
);
1887 VirtIOPCIProxy
*proxy
= VIRTIO_PCI(qdev
);
1888 PCIDevice
*pci_dev
= &proxy
->pci_dev
;
1890 if (!(proxy
->flags
& VIRTIO_PCI_FLAG_DISABLE_PCIE
) &&
1891 virtio_pci_modern(proxy
)) {
1892 pci_dev
->cap_present
|= QEMU_PCI_CAP_EXPRESS
;
1895 vpciklass
->parent_dc_realize(qdev
, errp
);
1898 static void virtio_pci_class_init(ObjectClass
*klass
, void *data
)
1900 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1901 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
1902 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_CLASS(klass
);
1904 dc
->props
= virtio_pci_properties
;
1905 k
->realize
= virtio_pci_realize
;
1906 k
->exit
= virtio_pci_exit
;
1907 k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1908 k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1909 k
->class_id
= PCI_CLASS_OTHERS
;
1910 device_class_set_parent_realize(dc
, virtio_pci_dc_realize
,
1911 &vpciklass
->parent_dc_realize
);
1912 dc
->reset
= virtio_pci_reset
;
1915 static const TypeInfo virtio_pci_info
= {
1916 .name
= TYPE_VIRTIO_PCI
,
1917 .parent
= TYPE_PCI_DEVICE
,
1918 .instance_size
= sizeof(VirtIOPCIProxy
),
1919 .class_init
= virtio_pci_class_init
,
1920 .class_size
= sizeof(VirtioPCIClass
),
1922 .interfaces
= (InterfaceInfo
[]) {
1923 { INTERFACE_PCIE_DEVICE
},
1924 { INTERFACE_CONVENTIONAL_PCI_DEVICE
},
1929 /* virtio-blk-pci */
1931 static Property virtio_blk_pci_properties
[] = {
1932 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
1933 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
1934 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
1935 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
1936 DEV_NVECTORS_UNSPECIFIED
),
1937 DEFINE_PROP_END_OF_LIST(),
1940 static void virtio_blk_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1942 VirtIOBlkPCI
*dev
= VIRTIO_BLK_PCI(vpci_dev
);
1943 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
1945 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
1946 vpci_dev
->nvectors
= dev
->vdev
.conf
.num_queues
+ 1;
1949 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
1950 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
1953 static void virtio_blk_pci_class_init(ObjectClass
*klass
, void *data
)
1955 DeviceClass
*dc
= DEVICE_CLASS(klass
);
1956 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
1957 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
1959 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
1960 dc
->props
= virtio_blk_pci_properties
;
1961 k
->realize
= virtio_blk_pci_realize
;
1962 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
1963 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_BLOCK
;
1964 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
1965 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
1968 static void virtio_blk_pci_instance_init(Object
*obj
)
1970 VirtIOBlkPCI
*dev
= VIRTIO_BLK_PCI(obj
);
1972 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
1974 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
1975 "bootindex", &error_abort
);
1978 static const TypeInfo virtio_blk_pci_info
= {
1979 .name
= TYPE_VIRTIO_BLK_PCI
,
1980 .parent
= TYPE_VIRTIO_PCI
,
1981 .instance_size
= sizeof(VirtIOBlkPCI
),
1982 .instance_init
= virtio_blk_pci_instance_init
,
1983 .class_init
= virtio_blk_pci_class_init
,
1986 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
1987 /* vhost-user-blk */
1989 static Property vhost_user_blk_pci_properties
[] = {
1990 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
1991 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
1992 DEV_NVECTORS_UNSPECIFIED
),
1993 DEFINE_PROP_END_OF_LIST(),
1996 static void vhost_user_blk_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
1998 VHostUserBlkPCI
*dev
= VHOST_USER_BLK_PCI(vpci_dev
);
1999 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2001 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2002 vpci_dev
->nvectors
= dev
->vdev
.num_queues
+ 1;
2005 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2006 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2009 static void vhost_user_blk_pci_class_init(ObjectClass
*klass
, void *data
)
2011 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2012 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2013 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2015 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2016 dc
->props
= vhost_user_blk_pci_properties
;
2017 k
->realize
= vhost_user_blk_pci_realize
;
2018 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2019 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_BLOCK
;
2020 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2021 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2024 static void vhost_user_blk_pci_instance_init(Object
*obj
)
2026 VHostUserBlkPCI
*dev
= VHOST_USER_BLK_PCI(obj
);
2028 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2029 TYPE_VHOST_USER_BLK
);
2030 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2031 "bootindex", &error_abort
);
2034 static const TypeInfo vhost_user_blk_pci_info
= {
2035 .name
= TYPE_VHOST_USER_BLK_PCI
,
2036 .parent
= TYPE_VIRTIO_PCI
,
2037 .instance_size
= sizeof(VHostUserBlkPCI
),
2038 .instance_init
= vhost_user_blk_pci_instance_init
,
2039 .class_init
= vhost_user_blk_pci_class_init
,
2043 /* virtio-scsi-pci */
2045 static Property virtio_scsi_pci_properties
[] = {
2046 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
2047 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
2048 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
2049 DEV_NVECTORS_UNSPECIFIED
),
2050 DEFINE_PROP_END_OF_LIST(),
2053 static void virtio_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2055 VirtIOSCSIPCI
*dev
= VIRTIO_SCSI_PCI(vpci_dev
);
2056 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2057 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
2058 DeviceState
*proxy
= DEVICE(vpci_dev
);
2061 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2062 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
2066 * For command line compatibility, this sets the virtio-scsi-device bus
2070 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
2071 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
2075 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2076 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2079 static void virtio_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
2081 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2082 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2083 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2085 k
->realize
= virtio_scsi_pci_realize
;
2086 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2087 dc
->props
= virtio_scsi_pci_properties
;
2088 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2089 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
2090 pcidev_k
->revision
= 0x00;
2091 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2094 static void virtio_scsi_pci_instance_init(Object
*obj
)
2096 VirtIOSCSIPCI
*dev
= VIRTIO_SCSI_PCI(obj
);
2098 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2102 static const TypeInfo virtio_scsi_pci_info
= {
2103 .name
= TYPE_VIRTIO_SCSI_PCI
,
2104 .parent
= TYPE_VIRTIO_PCI
,
2105 .instance_size
= sizeof(VirtIOSCSIPCI
),
2106 .instance_init
= virtio_scsi_pci_instance_init
,
2107 .class_init
= virtio_scsi_pci_class_init
,
2110 /* vhost-scsi-pci */
2112 #ifdef CONFIG_VHOST_SCSI
2113 static Property vhost_scsi_pci_properties
[] = {
2114 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
2115 DEV_NVECTORS_UNSPECIFIED
),
2116 DEFINE_PROP_END_OF_LIST(),
2119 static void vhost_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2121 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(vpci_dev
);
2122 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2123 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
2125 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2126 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
2129 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2130 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2133 static void vhost_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
2135 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2136 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2137 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2138 k
->realize
= vhost_scsi_pci_realize
;
2139 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2140 dc
->props
= vhost_scsi_pci_properties
;
2141 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2142 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
2143 pcidev_k
->revision
= 0x00;
2144 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2147 static void vhost_scsi_pci_instance_init(Object
*obj
)
2149 VHostSCSIPCI
*dev
= VHOST_SCSI_PCI(obj
);
2151 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2153 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2154 "bootindex", &error_abort
);
2157 static const TypeInfo vhost_scsi_pci_info
= {
2158 .name
= TYPE_VHOST_SCSI_PCI
,
2159 .parent
= TYPE_VIRTIO_PCI
,
2160 .instance_size
= sizeof(VHostSCSIPCI
),
2161 .instance_init
= vhost_scsi_pci_instance_init
,
2162 .class_init
= vhost_scsi_pci_class_init
,
2166 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2167 /* vhost-user-scsi-pci */
2168 static Property vhost_user_scsi_pci_properties
[] = {
2169 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
,
2170 DEV_NVECTORS_UNSPECIFIED
),
2171 DEFINE_PROP_END_OF_LIST(),
2174 static void vhost_user_scsi_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2176 VHostUserSCSIPCI
*dev
= VHOST_USER_SCSI_PCI(vpci_dev
);
2177 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2178 VirtIOSCSICommon
*vs
= VIRTIO_SCSI_COMMON(vdev
);
2180 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2181 vpci_dev
->nvectors
= vs
->conf
.num_queues
+ 3;
2184 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2185 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2188 static void vhost_user_scsi_pci_class_init(ObjectClass
*klass
, void *data
)
2190 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2191 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2192 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2193 k
->realize
= vhost_user_scsi_pci_realize
;
2194 set_bit(DEVICE_CATEGORY_STORAGE
, dc
->categories
);
2195 dc
->props
= vhost_user_scsi_pci_properties
;
2196 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2197 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_SCSI
;
2198 pcidev_k
->revision
= 0x00;
2199 pcidev_k
->class_id
= PCI_CLASS_STORAGE_SCSI
;
2202 static void vhost_user_scsi_pci_instance_init(Object
*obj
)
2204 VHostUserSCSIPCI
*dev
= VHOST_USER_SCSI_PCI(obj
);
2206 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2207 TYPE_VHOST_USER_SCSI
);
2208 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2209 "bootindex", &error_abort
);
2212 static const TypeInfo vhost_user_scsi_pci_info
= {
2213 .name
= TYPE_VHOST_USER_SCSI_PCI
,
2214 .parent
= TYPE_VIRTIO_PCI
,
2215 .instance_size
= sizeof(VHostUserSCSIPCI
),
2216 .instance_init
= vhost_user_scsi_pci_instance_init
,
2217 .class_init
= vhost_user_scsi_pci_class_init
,
2221 /* vhost-vsock-pci */
2223 #ifdef CONFIG_VHOST_VSOCK
2224 static Property vhost_vsock_pci_properties
[] = {
2225 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 3),
2226 DEFINE_PROP_END_OF_LIST(),
2229 static void vhost_vsock_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2231 VHostVSockPCI
*dev
= VHOST_VSOCK_PCI(vpci_dev
);
2232 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2234 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2235 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2238 static void vhost_vsock_pci_class_init(ObjectClass
*klass
, void *data
)
2240 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2241 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2242 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2243 k
->realize
= vhost_vsock_pci_realize
;
2244 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
2245 dc
->props
= vhost_vsock_pci_properties
;
2246 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2247 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_VSOCK
;
2248 pcidev_k
->revision
= 0x00;
2249 pcidev_k
->class_id
= PCI_CLASS_COMMUNICATION_OTHER
;
2252 static void vhost_vsock_pci_instance_init(Object
*obj
)
2254 VHostVSockPCI
*dev
= VHOST_VSOCK_PCI(obj
);
2256 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2260 static const TypeInfo vhost_vsock_pci_info
= {
2261 .name
= TYPE_VHOST_VSOCK_PCI
,
2262 .parent
= TYPE_VIRTIO_PCI
,
2263 .instance_size
= sizeof(VHostVSockPCI
),
2264 .instance_init
= vhost_vsock_pci_instance_init
,
2265 .class_init
= vhost_vsock_pci_class_init
,
2269 /* virtio-balloon-pci */
2271 static Property virtio_balloon_pci_properties
[] = {
2272 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
2273 DEFINE_PROP_END_OF_LIST(),
2276 static void virtio_balloon_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2278 VirtIOBalloonPCI
*dev
= VIRTIO_BALLOON_PCI(vpci_dev
);
2279 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2281 if (vpci_dev
->class_code
!= PCI_CLASS_OTHERS
&&
2282 vpci_dev
->class_code
!= PCI_CLASS_MEMORY_RAM
) { /* qemu < 1.1 */
2283 vpci_dev
->class_code
= PCI_CLASS_OTHERS
;
2286 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2287 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2290 static void virtio_balloon_pci_class_init(ObjectClass
*klass
, void *data
)
2292 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2293 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2294 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2295 k
->realize
= virtio_balloon_pci_realize
;
2296 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
2297 dc
->props
= virtio_balloon_pci_properties
;
2298 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2299 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_BALLOON
;
2300 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2301 pcidev_k
->class_id
= PCI_CLASS_OTHERS
;
2304 static void virtio_balloon_pci_instance_init(Object
*obj
)
2306 VirtIOBalloonPCI
*dev
= VIRTIO_BALLOON_PCI(obj
);
2308 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2309 TYPE_VIRTIO_BALLOON
);
2310 object_property_add_alias(obj
, "guest-stats", OBJECT(&dev
->vdev
),
2311 "guest-stats", &error_abort
);
2312 object_property_add_alias(obj
, "guest-stats-polling-interval",
2314 "guest-stats-polling-interval", &error_abort
);
2317 static const TypeInfo virtio_balloon_pci_info
= {
2318 .name
= TYPE_VIRTIO_BALLOON_PCI
,
2319 .parent
= TYPE_VIRTIO_PCI
,
2320 .instance_size
= sizeof(VirtIOBalloonPCI
),
2321 .instance_init
= virtio_balloon_pci_instance_init
,
2322 .class_init
= virtio_balloon_pci_class_init
,
2325 /* virtio-serial-pci */
2327 static void virtio_serial_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2329 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(vpci_dev
);
2330 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2331 DeviceState
*proxy
= DEVICE(vpci_dev
);
2334 if (vpci_dev
->class_code
!= PCI_CLASS_COMMUNICATION_OTHER
&&
2335 vpci_dev
->class_code
!= PCI_CLASS_DISPLAY_OTHER
&& /* qemu 0.10 */
2336 vpci_dev
->class_code
!= PCI_CLASS_OTHERS
) { /* qemu-kvm */
2337 vpci_dev
->class_code
= PCI_CLASS_COMMUNICATION_OTHER
;
2340 /* backwards-compatibility with machines that were created with
2341 DEV_NVECTORS_UNSPECIFIED */
2342 if (vpci_dev
->nvectors
== DEV_NVECTORS_UNSPECIFIED
) {
2343 vpci_dev
->nvectors
= dev
->vdev
.serial
.max_virtserial_ports
+ 1;
2347 * For command line compatibility, this sets the virtio-serial-device bus
2351 bus_name
= g_strdup_printf("%s.0", proxy
->id
);
2352 virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev
), bus_name
);
2356 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2357 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2360 static Property virtio_serial_pci_properties
[] = {
2361 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
2362 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
2363 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
2364 DEFINE_PROP_UINT32("class", VirtIOPCIProxy
, class_code
, 0),
2365 DEFINE_PROP_END_OF_LIST(),
2368 static void virtio_serial_pci_class_init(ObjectClass
*klass
, void *data
)
2370 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2371 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2372 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2373 k
->realize
= virtio_serial_pci_realize
;
2374 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
2375 dc
->props
= virtio_serial_pci_properties
;
2376 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2377 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_CONSOLE
;
2378 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2379 pcidev_k
->class_id
= PCI_CLASS_COMMUNICATION_OTHER
;
2382 static void virtio_serial_pci_instance_init(Object
*obj
)
2384 VirtIOSerialPCI
*dev
= VIRTIO_SERIAL_PCI(obj
);
2386 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2387 TYPE_VIRTIO_SERIAL
);
2390 static const TypeInfo virtio_serial_pci_info
= {
2391 .name
= TYPE_VIRTIO_SERIAL_PCI
,
2392 .parent
= TYPE_VIRTIO_PCI
,
2393 .instance_size
= sizeof(VirtIOSerialPCI
),
2394 .instance_init
= virtio_serial_pci_instance_init
,
2395 .class_init
= virtio_serial_pci_class_init
,
2398 /* virtio-net-pci */
2400 static Property virtio_net_properties
[] = {
2401 DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy
, flags
,
2402 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT
, true),
2403 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 3),
2404 DEFINE_PROP_END_OF_LIST(),
2407 static void virtio_net_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2409 DeviceState
*qdev
= DEVICE(vpci_dev
);
2410 VirtIONetPCI
*dev
= VIRTIO_NET_PCI(vpci_dev
);
2411 DeviceState
*vdev
= DEVICE(&dev
->vdev
);
2413 virtio_net_set_netclient_name(&dev
->vdev
, qdev
->id
,
2414 object_get_typename(OBJECT(qdev
)));
2415 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2416 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2419 static void virtio_net_pci_class_init(ObjectClass
*klass
, void *data
)
2421 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2422 PCIDeviceClass
*k
= PCI_DEVICE_CLASS(klass
);
2423 VirtioPCIClass
*vpciklass
= VIRTIO_PCI_CLASS(klass
);
2425 k
->romfile
= "efi-virtio.rom";
2426 k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2427 k
->device_id
= PCI_DEVICE_ID_VIRTIO_NET
;
2428 k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2429 k
->class_id
= PCI_CLASS_NETWORK_ETHERNET
;
2430 set_bit(DEVICE_CATEGORY_NETWORK
, dc
->categories
);
2431 dc
->props
= virtio_net_properties
;
2432 vpciklass
->realize
= virtio_net_pci_realize
;
2435 static void virtio_net_pci_instance_init(Object
*obj
)
2437 VirtIONetPCI
*dev
= VIRTIO_NET_PCI(obj
);
2439 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2441 object_property_add_alias(obj
, "bootindex", OBJECT(&dev
->vdev
),
2442 "bootindex", &error_abort
);
2445 static const TypeInfo virtio_net_pci_info
= {
2446 .name
= TYPE_VIRTIO_NET_PCI
,
2447 .parent
= TYPE_VIRTIO_PCI
,
2448 .instance_size
= sizeof(VirtIONetPCI
),
2449 .instance_init
= virtio_net_pci_instance_init
,
2450 .class_init
= virtio_net_pci_class_init
,
2453 /* virtio-rng-pci */
2455 static void virtio_rng_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2457 VirtIORngPCI
*vrng
= VIRTIO_RNG_PCI(vpci_dev
);
2458 DeviceState
*vdev
= DEVICE(&vrng
->vdev
);
2461 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2462 object_property_set_bool(OBJECT(vdev
), true, "realized", &err
);
2464 error_propagate(errp
, err
);
2468 object_property_set_link(OBJECT(vrng
),
2469 OBJECT(vrng
->vdev
.conf
.rng
), "rng",
2473 static void virtio_rng_pci_class_init(ObjectClass
*klass
, void *data
)
2475 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2476 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2477 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2479 k
->realize
= virtio_rng_pci_realize
;
2480 set_bit(DEVICE_CATEGORY_MISC
, dc
->categories
);
2482 pcidev_k
->vendor_id
= PCI_VENDOR_ID_REDHAT_QUMRANET
;
2483 pcidev_k
->device_id
= PCI_DEVICE_ID_VIRTIO_RNG
;
2484 pcidev_k
->revision
= VIRTIO_PCI_ABI_VERSION
;
2485 pcidev_k
->class_id
= PCI_CLASS_OTHERS
;
2488 static void virtio_rng_initfn(Object
*obj
)
2490 VirtIORngPCI
*dev
= VIRTIO_RNG_PCI(obj
);
2492 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2496 static const TypeInfo virtio_rng_pci_info
= {
2497 .name
= TYPE_VIRTIO_RNG_PCI
,
2498 .parent
= TYPE_VIRTIO_PCI
,
2499 .instance_size
= sizeof(VirtIORngPCI
),
2500 .instance_init
= virtio_rng_initfn
,
2501 .class_init
= virtio_rng_pci_class_init
,
2504 /* virtio-input-pci */
2506 static Property virtio_input_pci_properties
[] = {
2507 DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy
, nvectors
, 2),
2508 DEFINE_PROP_END_OF_LIST(),
2511 static void virtio_input_pci_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
2513 VirtIOInputPCI
*vinput
= VIRTIO_INPUT_PCI(vpci_dev
);
2514 DeviceState
*vdev
= DEVICE(&vinput
->vdev
);
2516 qdev_set_parent_bus(vdev
, BUS(&vpci_dev
->bus
));
2517 virtio_pci_force_virtio_1(vpci_dev
);
2518 object_property_set_bool(OBJECT(vdev
), true, "realized", errp
);
2521 static void virtio_input_pci_class_init(ObjectClass
*klass
, void *data
)
2523 DeviceClass
*dc
= DEVICE_CLASS(klass
);
2524 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
2525 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2527 dc
->props
= virtio_input_pci_properties
;
2528 k
->realize
= virtio_input_pci_realize
;
2529 set_bit(DEVICE_CATEGORY_INPUT
, dc
->categories
);
2531 pcidev_k
->class_id
= PCI_CLASS_INPUT_OTHER
;
2534 static void virtio_input_hid_kbd_pci_class_init(ObjectClass
*klass
, void *data
)
2536 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2538 pcidev_k
->class_id
= PCI_CLASS_INPUT_KEYBOARD
;
2541 static void virtio_input_hid_mouse_pci_class_init(ObjectClass
*klass
,
2544 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
2546 pcidev_k
->class_id
= PCI_CLASS_INPUT_MOUSE
;
2549 static void virtio_keyboard_initfn(Object
*obj
)
2551 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2553 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2554 TYPE_VIRTIO_KEYBOARD
);
2557 static void virtio_mouse_initfn(Object
*obj
)
2559 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2561 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2565 static void virtio_tablet_initfn(Object
*obj
)
2567 VirtIOInputHIDPCI
*dev
= VIRTIO_INPUT_HID_PCI(obj
);
2569 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2570 TYPE_VIRTIO_TABLET
);
2573 static const TypeInfo virtio_input_pci_info
= {
2574 .name
= TYPE_VIRTIO_INPUT_PCI
,
2575 .parent
= TYPE_VIRTIO_PCI
,
2576 .instance_size
= sizeof(VirtIOInputPCI
),
2577 .class_init
= virtio_input_pci_class_init
,
2581 static const TypeInfo virtio_input_hid_pci_info
= {
2582 .name
= TYPE_VIRTIO_INPUT_HID_PCI
,
2583 .parent
= TYPE_VIRTIO_INPUT_PCI
,
2584 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2588 static const TypeInfo virtio_keyboard_pci_info
= {
2589 .name
= TYPE_VIRTIO_KEYBOARD_PCI
,
2590 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2591 .class_init
= virtio_input_hid_kbd_pci_class_init
,
2592 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2593 .instance_init
= virtio_keyboard_initfn
,
2596 static const TypeInfo virtio_mouse_pci_info
= {
2597 .name
= TYPE_VIRTIO_MOUSE_PCI
,
2598 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2599 .class_init
= virtio_input_hid_mouse_pci_class_init
,
2600 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2601 .instance_init
= virtio_mouse_initfn
,
2604 static const TypeInfo virtio_tablet_pci_info
= {
2605 .name
= TYPE_VIRTIO_TABLET_PCI
,
2606 .parent
= TYPE_VIRTIO_INPUT_HID_PCI
,
2607 .instance_size
= sizeof(VirtIOInputHIDPCI
),
2608 .instance_init
= virtio_tablet_initfn
,
2612 static void virtio_host_initfn(Object
*obj
)
2614 VirtIOInputHostPCI
*dev
= VIRTIO_INPUT_HOST_PCI(obj
);
2616 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
2617 TYPE_VIRTIO_INPUT_HOST
);
2620 static const TypeInfo virtio_host_pci_info
= {
2621 .name
= TYPE_VIRTIO_INPUT_HOST_PCI
,
2622 .parent
= TYPE_VIRTIO_INPUT_PCI
,
2623 .instance_size
= sizeof(VirtIOInputHostPCI
),
2624 .instance_init
= virtio_host_initfn
,
2628 /* virtio-pci-bus */
2630 static void virtio_pci_bus_new(VirtioBusState
*bus
, size_t bus_size
,
2631 VirtIOPCIProxy
*dev
)
2633 DeviceState
*qdev
= DEVICE(dev
);
2634 char virtio_bus_name
[] = "virtio-bus";
2636 qbus_create_inplace(bus
, bus_size
, TYPE_VIRTIO_PCI_BUS
, qdev
,
2640 static void virtio_pci_bus_class_init(ObjectClass
*klass
, void *data
)
2642 BusClass
*bus_class
= BUS_CLASS(klass
);
2643 VirtioBusClass
*k
= VIRTIO_BUS_CLASS(klass
);
2644 bus_class
->max_dev
= 1;
2645 k
->notify
= virtio_pci_notify
;
2646 k
->save_config
= virtio_pci_save_config
;
2647 k
->load_config
= virtio_pci_load_config
;
2648 k
->save_queue
= virtio_pci_save_queue
;
2649 k
->load_queue
= virtio_pci_load_queue
;
2650 k
->save_extra_state
= virtio_pci_save_extra_state
;
2651 k
->load_extra_state
= virtio_pci_load_extra_state
;
2652 k
->has_extra_state
= virtio_pci_has_extra_state
;
2653 k
->query_guest_notifiers
= virtio_pci_query_guest_notifiers
;
2654 k
->set_guest_notifiers
= virtio_pci_set_guest_notifiers
;
2655 k
->vmstate_change
= virtio_pci_vmstate_change
;
2656 k
->pre_plugged
= virtio_pci_pre_plugged
;
2657 k
->device_plugged
= virtio_pci_device_plugged
;
2658 k
->device_unplugged
= virtio_pci_device_unplugged
;
2659 k
->query_nvectors
= virtio_pci_query_nvectors
;
2660 k
->ioeventfd_enabled
= virtio_pci_ioeventfd_enabled
;
2661 k
->ioeventfd_assign
= virtio_pci_ioeventfd_assign
;
2662 k
->get_dma_as
= virtio_pci_get_dma_as
;
2665 static const TypeInfo virtio_pci_bus_info
= {
2666 .name
= TYPE_VIRTIO_PCI_BUS
,
2667 .parent
= TYPE_VIRTIO_BUS
,
2668 .instance_size
= sizeof(VirtioPCIBusState
),
2669 .class_init
= virtio_pci_bus_class_init
,
2672 static void virtio_pci_register_types(void)
2674 type_register_static(&virtio_rng_pci_info
);
2675 type_register_static(&virtio_input_pci_info
);
2676 type_register_static(&virtio_input_hid_pci_info
);
2677 type_register_static(&virtio_keyboard_pci_info
);
2678 type_register_static(&virtio_mouse_pci_info
);
2679 type_register_static(&virtio_tablet_pci_info
);
2681 type_register_static(&virtio_host_pci_info
);
2683 type_register_static(&virtio_pci_bus_info
);
2684 type_register_static(&virtio_pci_info
);
2685 #ifdef CONFIG_VIRTFS
2686 type_register_static(&virtio_9p_pci_info
);
2688 type_register_static(&virtio_blk_pci_info
);
2689 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2690 type_register_static(&vhost_user_blk_pci_info
);
2692 type_register_static(&virtio_scsi_pci_info
);
2693 type_register_static(&virtio_balloon_pci_info
);
2694 type_register_static(&virtio_serial_pci_info
);
2695 type_register_static(&virtio_net_pci_info
);
2696 #ifdef CONFIG_VHOST_SCSI
2697 type_register_static(&vhost_scsi_pci_info
);
2699 #if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX)
2700 type_register_static(&vhost_user_scsi_pci_info
);
2702 #ifdef CONFIG_VHOST_VSOCK
2703 type_register_static(&vhost_vsock_pci_info
);
2707 type_init(virtio_pci_register_types
)