2 #include "hw/pci/pci.h"
3 #include "ui/console.h"
5 #include "hw/virtio/virtio-pci.h"
8 * virtio-vga: This extends VirtioPCIProxy.
10 #define TYPE_VIRTIO_VGA "virtio-vga"
11 #define VIRTIO_VGA(obj) \
12 OBJECT_CHECK(VirtIOVGA, (obj), TYPE_VIRTIO_VGA)
14 typedef struct VirtIOVGA
{
15 VirtIOPCIProxy parent_obj
;
18 MemoryRegion vga_mrs
[3];
21 static void virtio_vga_invalidate_display(void *opaque
)
23 VirtIOVGA
*vvga
= opaque
;
25 if (vvga
->vdev
.enable
) {
26 virtio_gpu_ops
.invalidate(&vvga
->vdev
);
28 vvga
->vga
.hw_ops
->invalidate(&vvga
->vga
);
32 static void virtio_vga_update_display(void *opaque
)
34 VirtIOVGA
*vvga
= opaque
;
36 if (vvga
->vdev
.enable
) {
37 virtio_gpu_ops
.gfx_update(&vvga
->vdev
);
39 vvga
->vga
.hw_ops
->gfx_update(&vvga
->vga
);
43 static void virtio_vga_text_update(void *opaque
, console_ch_t
*chardata
)
45 VirtIOVGA
*vvga
= opaque
;
47 if (vvga
->vdev
.enable
) {
48 if (virtio_gpu_ops
.text_update
) {
49 virtio_gpu_ops
.text_update(&vvga
->vdev
, chardata
);
52 if (vvga
->vga
.hw_ops
->text_update
) {
53 vvga
->vga
.hw_ops
->text_update(&vvga
->vga
, chardata
);
58 static int virtio_vga_ui_info(void *opaque
, uint32_t idx
, QemuUIInfo
*info
)
60 VirtIOVGA
*vvga
= opaque
;
62 if (virtio_gpu_ops
.ui_info
) {
63 return virtio_gpu_ops
.ui_info(&vvga
->vdev
, idx
, info
);
68 static const GraphicHwOps virtio_vga_ops
= {
69 .invalidate
= virtio_vga_invalidate_display
,
70 .gfx_update
= virtio_vga_update_display
,
71 .text_update
= virtio_vga_text_update
,
72 .ui_info
= virtio_vga_ui_info
,
75 /* VGA device wrapper around PCI device around virtio GPU */
76 static void virtio_vga_realize(VirtIOPCIProxy
*vpci_dev
, Error
**errp
)
78 VirtIOVGA
*vvga
= VIRTIO_VGA(vpci_dev
);
79 VirtIOGPU
*g
= &vvga
->vdev
;
80 VGACommonState
*vga
= &vvga
->vga
;
84 /* init vga compat bits */
85 vga
->vram_size_mb
= 8;
86 vga_common_init(vga
, OBJECT(vpci_dev
), false);
87 vga_init(vga
, OBJECT(vpci_dev
), pci_address_space(&vpci_dev
->pci_dev
),
88 pci_address_space_io(&vpci_dev
->pci_dev
), true);
89 pci_register_bar(&vpci_dev
->pci_dev
, 0,
90 PCI_BASE_ADDRESS_MEM_PREFETCH
, &vga
->vram
);
93 * Configure virtio bar and regions
95 * We use bar #2 for the mmio regions, to be compatible with stdvga.
96 * virtio regions are moved to the end of bar #2, to make room for
97 * the stdvga mmio registers at the start of bar #2.
99 vpci_dev
->modern_mem_bar
= 2;
100 vpci_dev
->msix_bar
= 4;
101 offset
= memory_region_size(&vpci_dev
->modern_bar
);
102 offset
-= vpci_dev
->notify
.size
;
103 vpci_dev
->notify
.offset
= offset
;
104 offset
-= vpci_dev
->device
.size
;
105 vpci_dev
->device
.offset
= offset
;
106 offset
-= vpci_dev
->isr
.size
;
107 vpci_dev
->isr
.offset
= offset
;
108 offset
-= vpci_dev
->common
.size
;
109 vpci_dev
->common
.offset
= offset
;
111 /* init virtio bits */
112 qdev_set_parent_bus(DEVICE(g
), BUS(&vpci_dev
->bus
));
113 /* force virtio-1.0 */
114 vpci_dev
->flags
&= ~VIRTIO_PCI_FLAG_DISABLE_MODERN
;
115 vpci_dev
->flags
|= VIRTIO_PCI_FLAG_DISABLE_LEGACY
;
116 object_property_set_bool(OBJECT(g
), true, "realized", errp
);
118 /* add stdvga mmio regions */
119 pci_std_vga_mmio_region_init(vga
, &vpci_dev
->modern_bar
,
120 vvga
->vga_mrs
, true);
122 vga
->con
= g
->scanout
[0].con
;
123 graphic_console_set_hwops(vga
->con
, &virtio_vga_ops
, vvga
);
125 for (i
= 0; i
< g
->conf
.max_outputs
; i
++) {
126 object_property_set_link(OBJECT(g
->scanout
[i
].con
),
132 static void virtio_vga_reset(DeviceState
*dev
)
134 VirtIOVGA
*vvga
= VIRTIO_VGA(dev
);
135 vvga
->vdev
.enable
= 0;
137 vga_dirty_log_start(&vvga
->vga
);
140 static Property virtio_vga_properties
[] = {
141 DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy
),
142 DEFINE_PROP_END_OF_LIST(),
145 static void virtio_vga_class_init(ObjectClass
*klass
, void *data
)
147 DeviceClass
*dc
= DEVICE_CLASS(klass
);
148 VirtioPCIClass
*k
= VIRTIO_PCI_CLASS(klass
);
149 PCIDeviceClass
*pcidev_k
= PCI_DEVICE_CLASS(klass
);
151 set_bit(DEVICE_CATEGORY_DISPLAY
, dc
->categories
);
152 dc
->props
= virtio_vga_properties
;
153 dc
->reset
= virtio_vga_reset
;
154 dc
->hotpluggable
= false;
156 k
->realize
= virtio_vga_realize
;
157 pcidev_k
->romfile
= "vgabios-virtio.bin";
158 pcidev_k
->class_id
= PCI_CLASS_DISPLAY_VGA
;
161 static void virtio_vga_inst_initfn(Object
*obj
)
163 VirtIOVGA
*dev
= VIRTIO_VGA(obj
);
165 virtio_instance_init_common(obj
, &dev
->vdev
, sizeof(dev
->vdev
),
169 static TypeInfo virtio_vga_info
= {
170 .name
= TYPE_VIRTIO_VGA
,
171 .parent
= TYPE_VIRTIO_PCI
,
172 .instance_size
= sizeof(struct VirtIOVGA
),
173 .instance_init
= virtio_vga_inst_initfn
,
174 .class_init
= virtio_vga_class_init
,
177 static void virtio_vga_register_types(void)
179 type_register_static(&virtio_vga_info
);
182 type_init(virtio_vga_register_types
)