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										 |  |  | #include "qemu/osdep.h"
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										 |  |  | #include "hw/hw.h"
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							|  |  |  | #include "hw/pci/pci.h"
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							|  |  |  | #include "ui/console.h"
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							|  |  |  | #include "vga_int.h"
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							|  |  |  | #include "hw/virtio/virtio-pci.h"
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							|  |  |  | /*
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							|  |  |  |  * virtio-vga: This extends VirtioPCIProxy. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | #define TYPE_VIRTIO_VGA "virtio-vga"
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							|  |  |  | #define VIRTIO_VGA(obj) \
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							|  |  |  |         OBJECT_CHECK(VirtIOVGA, (obj), TYPE_VIRTIO_VGA) | 
					
						
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							|  |  |  | typedef struct VirtIOVGA { | 
					
						
							|  |  |  |     VirtIOPCIProxy parent_obj; | 
					
						
							|  |  |  |     VirtIOGPU      vdev; | 
					
						
							|  |  |  |     VGACommonState vga; | 
					
						
							|  |  |  |     MemoryRegion   vga_mrs[3]; | 
					
						
							|  |  |  | } VirtIOVGA; | 
					
						
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							|  |  |  | static void virtio_vga_invalidate_display(void *opaque) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = opaque; | 
					
						
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							|  |  |  |     if (vvga->vdev.enable) { | 
					
						
							|  |  |  |         virtio_gpu_ops.invalidate(&vvga->vdev); | 
					
						
							|  |  |  |     } else { | 
					
						
							|  |  |  |         vvga->vga.hw_ops->invalidate(&vvga->vga); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static void virtio_vga_update_display(void *opaque) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = opaque; | 
					
						
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							|  |  |  |     if (vvga->vdev.enable) { | 
					
						
							|  |  |  |         virtio_gpu_ops.gfx_update(&vvga->vdev); | 
					
						
							|  |  |  |     } else { | 
					
						
							|  |  |  |         vvga->vga.hw_ops->gfx_update(&vvga->vga); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static void virtio_vga_text_update(void *opaque, console_ch_t *chardata) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = opaque; | 
					
						
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							|  |  |  |     if (vvga->vdev.enable) { | 
					
						
							|  |  |  |         if (virtio_gpu_ops.text_update) { | 
					
						
							|  |  |  |             virtio_gpu_ops.text_update(&vvga->vdev, chardata); | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } else { | 
					
						
							|  |  |  |         if (vvga->vga.hw_ops->text_update) { | 
					
						
							|  |  |  |             vvga->vga.hw_ops->text_update(&vvga->vga, chardata); | 
					
						
							|  |  |  |         } | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static int virtio_vga_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = opaque; | 
					
						
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							|  |  |  |     if (virtio_gpu_ops.ui_info) { | 
					
						
							|  |  |  |         return virtio_gpu_ops.ui_info(&vvga->vdev, idx, info); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     return -1; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | static void virtio_vga_gl_block(void *opaque, bool block) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = opaque; | 
					
						
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							|  |  |  |     if (virtio_gpu_ops.gl_block) { | 
					
						
							|  |  |  |         virtio_gpu_ops.gl_block(&vvga->vdev, block); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | static const GraphicHwOps virtio_vga_ops = { | 
					
						
							|  |  |  |     .invalidate = virtio_vga_invalidate_display, | 
					
						
							|  |  |  |     .gfx_update = virtio_vga_update_display, | 
					
						
							|  |  |  |     .text_update = virtio_vga_text_update, | 
					
						
							|  |  |  |     .ui_info = virtio_vga_ui_info, | 
					
						
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										 |  |  |     .gl_block = virtio_vga_gl_block, | 
					
						
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										 |  |  | }; | 
					
						
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							|  |  |  | /* VGA device wrapper around PCI device around virtio GPU */ | 
					
						
							|  |  |  | static void virtio_vga_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = VIRTIO_VGA(vpci_dev); | 
					
						
							|  |  |  |     VirtIOGPU *g = &vvga->vdev; | 
					
						
							|  |  |  |     VGACommonState *vga = &vvga->vga; | 
					
						
							|  |  |  |     uint32_t offset; | 
					
						
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										 |  |  |     int i; | 
					
						
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							|  |  |  |     /* init vga compat bits */ | 
					
						
							|  |  |  |     vga->vram_size_mb = 8; | 
					
						
							|  |  |  |     vga_common_init(vga, OBJECT(vpci_dev), false); | 
					
						
							|  |  |  |     vga_init(vga, OBJECT(vpci_dev), pci_address_space(&vpci_dev->pci_dev), | 
					
						
							|  |  |  |              pci_address_space_io(&vpci_dev->pci_dev), true); | 
					
						
							|  |  |  |     pci_register_bar(&vpci_dev->pci_dev, 0, | 
					
						
							|  |  |  |                      PCI_BASE_ADDRESS_MEM_PREFETCH, &vga->vram); | 
					
						
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							|  |  |  |     /*
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							|  |  |  |      * Configure virtio bar and regions | 
					
						
							|  |  |  |      * | 
					
						
							|  |  |  |      * We use bar #2 for the mmio regions, to be compatible with stdvga. | 
					
						
							|  |  |  |      * virtio regions are moved to the end of bar #2, to make room for | 
					
						
							|  |  |  |      * the stdvga mmio registers at the start of bar #2. | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     vpci_dev->modern_mem_bar = 2; | 
					
						
							|  |  |  |     vpci_dev->msix_bar = 4; | 
					
						
							|  |  |  |     offset = memory_region_size(&vpci_dev->modern_bar); | 
					
						
							|  |  |  |     offset -= vpci_dev->notify.size; | 
					
						
							|  |  |  |     vpci_dev->notify.offset = offset; | 
					
						
							|  |  |  |     offset -= vpci_dev->device.size; | 
					
						
							|  |  |  |     vpci_dev->device.offset = offset; | 
					
						
							|  |  |  |     offset -= vpci_dev->isr.size; | 
					
						
							|  |  |  |     vpci_dev->isr.offset = offset; | 
					
						
							|  |  |  |     offset -= vpci_dev->common.size; | 
					
						
							|  |  |  |     vpci_dev->common.offset = offset; | 
					
						
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							|  |  |  |     /* init virtio bits */ | 
					
						
							|  |  |  |     qdev_set_parent_bus(DEVICE(g), BUS(&vpci_dev->bus)); | 
					
						
							|  |  |  |     /* force virtio-1.0 */ | 
					
						
							|  |  |  |     vpci_dev->flags &= ~VIRTIO_PCI_FLAG_DISABLE_MODERN; | 
					
						
							|  |  |  |     vpci_dev->flags |= VIRTIO_PCI_FLAG_DISABLE_LEGACY; | 
					
						
							|  |  |  |     object_property_set_bool(OBJECT(g), true, "realized", errp); | 
					
						
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							|  |  |  |     /* add stdvga mmio regions */ | 
					
						
							|  |  |  |     pci_std_vga_mmio_region_init(vga, &vpci_dev->modern_bar, | 
					
						
							|  |  |  |                                  vvga->vga_mrs, true); | 
					
						
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							|  |  |  |     vga->con = g->scanout[0].con; | 
					
						
							|  |  |  |     graphic_console_set_hwops(vga->con, &virtio_vga_ops, vvga); | 
					
						
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							|  |  |  |     for (i = 0; i < g->conf.max_outputs; i++) { | 
					
						
							|  |  |  |         object_property_set_link(OBJECT(g->scanout[i].con), | 
					
						
							|  |  |  |                                  OBJECT(vpci_dev), | 
					
						
							|  |  |  |                                  "device", errp); | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  | } | 
					
						
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							|  |  |  | static void virtio_vga_reset(DeviceState *dev) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *vvga = VIRTIO_VGA(dev); | 
					
						
							|  |  |  |     vvga->vdev.enable = 0; | 
					
						
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							|  |  |  |     vga_dirty_log_start(&vvga->vga); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static Property virtio_vga_properties[] = { | 
					
						
							|  |  |  |     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy), | 
					
						
							|  |  |  |     DEFINE_PROP_END_OF_LIST(), | 
					
						
							|  |  |  | }; | 
					
						
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							|  |  |  | static void virtio_vga_class_init(ObjectClass *klass, void *data) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     DeviceClass *dc = DEVICE_CLASS(klass); | 
					
						
							|  |  |  |     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | 
					
						
							|  |  |  |     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | 
					
						
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							|  |  |  |     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); | 
					
						
							|  |  |  |     dc->props = virtio_vga_properties; | 
					
						
							|  |  |  |     dc->reset = virtio_vga_reset; | 
					
						
							|  |  |  |     dc->hotpluggable = false; | 
					
						
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							|  |  |  |     k->realize = virtio_vga_realize; | 
					
						
							|  |  |  |     pcidev_k->romfile = "vgabios-virtio.bin"; | 
					
						
							|  |  |  |     pcidev_k->class_id = PCI_CLASS_DISPLAY_VGA; | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | static void virtio_vga_inst_initfn(Object *obj) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     VirtIOVGA *dev = VIRTIO_VGA(obj); | 
					
						
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							|  |  |  |     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | 
					
						
							|  |  |  |                                 TYPE_VIRTIO_GPU); | 
					
						
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										 |  |  | } | 
					
						
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							|  |  |  | static TypeInfo virtio_vga_info = { | 
					
						
							|  |  |  |     .name          = TYPE_VIRTIO_VGA, | 
					
						
							|  |  |  |     .parent        = TYPE_VIRTIO_PCI, | 
					
						
							|  |  |  |     .instance_size = sizeof(struct VirtIOVGA), | 
					
						
							|  |  |  |     .instance_init = virtio_vga_inst_initfn, | 
					
						
							|  |  |  |     .class_init    = virtio_vga_class_init, | 
					
						
							|  |  |  | }; | 
					
						
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							|  |  |  | static void virtio_vga_register_types(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     type_register_static(&virtio_vga_info); | 
					
						
							|  |  |  | } | 
					
						
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							|  |  |  | type_init(virtio_vga_register_types) |