file_ram_alloc: propagate error to caller instead of terminating QEMU
[qemu/ar7.git] / hw / display / virtio-vga.c
blobf7e539fe93e79cc28372df425c9140aa02db23bc
1 #include "hw/hw.h"
2 #include "hw/pci/pci.h"
3 #include "ui/console.h"
4 #include "vga_int.h"
5 #include "hw/virtio/virtio-pci.h"
7 /*
8 * virtio-vga: This extends VirtioPCIProxy.
9 */
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;
16 VirtIOGPU vdev;
17 VGACommonState vga;
18 MemoryRegion vga_mrs[3];
19 } VirtIOVGA;
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);
27 } else {
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);
38 } else {
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);
51 } else {
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);
65 return -1;
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;
81 uint32_t offset;
82 int i;
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),
127 OBJECT(vpci_dev),
128 "device", errp);
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),
166 TYPE_VIRTIO_GPU);
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)