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.
15 #ifndef QEMU_VIRTIO_PCI_H
16 #define QEMU_VIRTIO_PCI_H
18 #include "hw/pci/msi.h"
19 #include "hw/virtio/virtio-blk.h"
20 #include "hw/virtio/virtio-net.h"
21 #include "hw/virtio/virtio-serial.h"
22 #include "hw/virtio/virtio-scsi.h"
23 #include "hw/virtio/virtio-bus.h"
24 #include "hw/virtio/virtio-gpu.h"
25 #include "hw/virtio/virtio-crypto.h"
27 #ifdef CONFIG_VHOST_SCSI
28 #include "hw/virtio/vhost-scsi.h"
31 typedef struct VirtIOPCIProxy VirtIOPCIProxy;
32 typedef struct VirtIOBlkPCI VirtIOBlkPCI;
33 typedef struct VirtIOSCSIPCI VirtIOSCSIPCI;
34 typedef struct VirtIOSerialPCI VirtIOSerialPCI;
35 typedef struct VirtIONetPCI VirtIONetPCI;
36 typedef struct VHostSCSIPCI VHostSCSIPCI;
37 typedef struct VirtIOGPUPCI VirtIOGPUPCI;
38 typedef struct VirtIOCryptoPCI VirtIOCryptoPCI;
42 typedef struct VirtioBusState VirtioPCIBusState;
43 typedef struct VirtioBusClass VirtioPCIBusClass;
45 #define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus"
46 #define VIRTIO_PCI_BUS(obj) \
47 OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS)
48 #define VIRTIO_PCI_BUS_GET_CLASS(obj) \
49 OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS)
50 #define VIRTIO_PCI_BUS_CLASS(klass) \
51 OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS)
54 VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT,
55 VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT,
56 VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT,
57 VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT,
58 VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT,
59 VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT,
60 VIRTIO_PCI_FLAG_ATS_BIT,
61 VIRTIO_PCI_FLAG_INIT_DEVERR_BIT,
62 VIRTIO_PCI_FLAG_INIT_LNKCTL_BIT,
63 VIRTIO_PCI_FLAG_INIT_PM_BIT,
66 /* Need to activate work-arounds for buggy guests at vmstate load. */
67 #define VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION \
68 (1 << VIRTIO_PCI_FLAG_BUS_MASTER_BUG_MIGRATION_BIT)
70 /* Performance improves when virtqueue kick processing is decoupled from the
71 * vcpu thread using ioeventfd for some devices. */
72 #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT)
74 /* virtio version flags */
75 #define VIRTIO_PCI_FLAG_DISABLE_PCIE (1 << VIRTIO_PCI_FLAG_DISABLE_PCIE_BIT)
77 /* migrate extra state */
78 #define VIRTIO_PCI_FLAG_MIGRATE_EXTRA (1 << VIRTIO_PCI_FLAG_MIGRATE_EXTRA_BIT)
80 /* have pio notification for modern device ? */
81 #define VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY \
82 (1 << VIRTIO_PCI_FLAG_MODERN_PIO_NOTIFY_BIT)
84 /* page per vq flag to be used by split drivers within guests */
85 #define VIRTIO_PCI_FLAG_PAGE_PER_VQ \
86 (1 << VIRTIO_PCI_FLAG_PAGE_PER_VQ_BIT)
88 /* address space translation service */
89 #define VIRTIO_PCI_FLAG_ATS (1 << VIRTIO_PCI_FLAG_ATS_BIT)
91 /* Init error enabling flags */
92 #define VIRTIO_PCI_FLAG_INIT_DEVERR (1 << VIRTIO_PCI_FLAG_INIT_DEVERR_BIT)
94 /* Init Link Control register */
95 #define VIRTIO_PCI_FLAG_INIT_LNKCTL (1 << VIRTIO_PCI_FLAG_INIT_LNKCTL_BIT)
97 /* Init Power Management */
98 #define VIRTIO_PCI_FLAG_INIT_PM (1 << VIRTIO_PCI_FLAG_INIT_PM_BIT)
107 * virtio-pci: This is the PCIDevice which has a virtio-pci-bus.
109 #define TYPE_VIRTIO_PCI "virtio-pci"
110 #define VIRTIO_PCI_GET_CLASS(obj) \
111 OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
112 #define VIRTIO_PCI_CLASS(klass) \
113 OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
114 #define VIRTIO_PCI(obj) \
115 OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
117 typedef struct VirtioPCIClass {
118 PCIDeviceClass parent_class;
119 DeviceRealize parent_dc_realize;
120 void (*realize)(VirtIOPCIProxy *vpci_dev, Error **errp);
123 typedef struct VirtIOPCIRegion {
130 typedef struct VirtIOPCIQueue {
138 struct VirtIOPCIProxy {
143 VirtIOPCIRegion common;
145 VirtIOPCIRegion device;
146 VirtIOPCIRegion notify;
147 VirtIOPCIRegion notify_pio;
149 VirtIOPCIRegion regs[5];
151 MemoryRegion modern_bar;
153 uint32_t legacy_io_bar_idx;
154 uint32_t msix_bar_idx;
155 uint32_t modern_io_bar_idx;
156 uint32_t modern_mem_bar_idx;
160 bool ignore_backend_features;
161 OnOffAuto disable_legacy;
166 uint32_t guest_features[2];
167 VirtIOPCIQueue vqs[VIRTIO_QUEUE_MAX];
169 VirtIOIRQFD *vector_irqfd;
170 int nvqs_with_notifiers;
174 static inline bool virtio_pci_modern(VirtIOPCIProxy *proxy)
176 return !proxy->disable_modern;
179 static inline bool virtio_pci_legacy(VirtIOPCIProxy *proxy)
181 return proxy->disable_legacy == ON_OFF_AUTO_OFF;
184 static inline void virtio_pci_force_virtio_1(VirtIOPCIProxy *proxy)
186 proxy->disable_modern = false;
187 proxy->disable_legacy = ON_OFF_AUTO_ON;
190 static inline void virtio_pci_disable_modern(VirtIOPCIProxy *proxy)
192 proxy->disable_modern = true;
196 * virtio-scsi-pci: This extends VirtioPCIProxy.
198 #define TYPE_VIRTIO_SCSI_PCI "virtio-scsi-pci-base"
199 #define VIRTIO_SCSI_PCI(obj) \
200 OBJECT_CHECK(VirtIOSCSIPCI, (obj), TYPE_VIRTIO_SCSI_PCI)
202 struct VirtIOSCSIPCI {
203 VirtIOPCIProxy parent_obj;
207 #ifdef CONFIG_VHOST_SCSI
209 * vhost-scsi-pci: This extends VirtioPCIProxy.
211 #define TYPE_VHOST_SCSI_PCI "vhost-scsi-pci-base"
212 #define VHOST_SCSI_PCI(obj) \
213 OBJECT_CHECK(VHostSCSIPCI, (obj), TYPE_VHOST_SCSI_PCI)
215 struct VHostSCSIPCI {
216 VirtIOPCIProxy parent_obj;
222 * virtio-blk-pci: This extends VirtioPCIProxy.
224 #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base"
225 #define VIRTIO_BLK_PCI(obj) \
226 OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI)
228 struct VirtIOBlkPCI {
229 VirtIOPCIProxy parent_obj;
234 * virtio-serial-pci: This extends VirtioPCIProxy.
236 #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base"
237 #define VIRTIO_SERIAL_PCI(obj) \
238 OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI)
240 struct VirtIOSerialPCI {
241 VirtIOPCIProxy parent_obj;
246 * virtio-net-pci: This extends VirtioPCIProxy.
248 #define TYPE_VIRTIO_NET_PCI "virtio-net-pci-base"
249 #define VIRTIO_NET_PCI(obj) \
250 OBJECT_CHECK(VirtIONetPCI, (obj), TYPE_VIRTIO_NET_PCI)
252 struct VirtIONetPCI {
253 VirtIOPCIProxy parent_obj;
258 * virtio-input-pci: This extends VirtioPCIProxy.
260 #define TYPE_VIRTIO_INPUT_PCI "virtio-input-pci"
263 * virtio-gpu-pci: This extends VirtioPCIProxy.
265 #define TYPE_VIRTIO_GPU_PCI "virtio-gpu-pci"
266 #define VIRTIO_GPU_PCI(obj) \
267 OBJECT_CHECK(VirtIOGPUPCI, (obj), TYPE_VIRTIO_GPU_PCI)
269 struct VirtIOGPUPCI {
270 VirtIOPCIProxy parent_obj;
275 * virtio-crypto-pci: This extends VirtioPCIProxy.
277 #define TYPE_VIRTIO_CRYPTO_PCI "virtio-crypto-pci"
278 #define VIRTIO_CRYPTO_PCI(obj) \
279 OBJECT_CHECK(VirtIOCryptoPCI, (obj), TYPE_VIRTIO_CRYPTO_PCI)
281 struct VirtIOCryptoPCI {
282 VirtIOPCIProxy parent_obj;
286 /* Virtio ABI version, if we increment this, we break the guest driver. */
287 #define VIRTIO_PCI_ABI_VERSION 0
289 /* Input for virtio_pci_types_register() */
290 typedef struct VirtioPCIDeviceTypeInfo {
292 * Common base class for the subclasses below.
294 * Required only if transitional_name or non_transitional_name is set.
296 * We need a separate base type instead of making all types
297 * inherit from generic_name for two reasons:
298 * 1) generic_name implements INTERFACE_PCIE_DEVICE, but
299 * transitional_name does not.
300 * 2) generic_name has the "disable-legacy" and "disable-modern"
301 * properties, transitional_name and non_transitional name don't.
303 const char *base_name;
305 * Generic device type. Optional.
307 * Supports both transitional and non-transitional modes,
308 * using the disable-legacy and disable-modern properties.
309 * If disable-legacy=auto, (non-)transitional mode is selected
310 * depending on the bus where the device is plugged.
312 * Implements both INTERFACE_PCIE_DEVICE and INTERFACE_CONVENTIONAL_PCI_DEVICE,
313 * but PCI Express is supported only in non-transitional mode.
315 * The only type implemented by QEMU 3.1 and older.
317 const char *generic_name;
319 * The transitional device type. Optional.
321 * Implements both INTERFACE_PCIE_DEVICE and INTERFACE_CONVENTIONAL_PCI_DEVICE.
323 const char *transitional_name;
325 * The non-transitional device type. Optional.
327 * Implements INTERFACE_CONVENTIONAL_PCI_DEVICE only.
329 const char *non_transitional_name;
331 /* Parent type. If NULL, TYPE_VIRTIO_PCI is used */
334 /* Same as TypeInfo fields: */
335 size_t instance_size;
336 void (*instance_init)(Object *obj);
337 void (*class_init)(ObjectClass *klass, void *data);
338 } VirtioPCIDeviceTypeInfo;
340 /* Register virtio-pci type(s). @t must be static. */
341 void virtio_pci_types_register(const VirtioPCIDeviceTypeInfo *t);