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										 |  |  | #include "qemu/osdep.h"
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										 |  |  | #include "hw/pci/pci.h"
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										 |  |  | #include "hw/qdev-properties.h"
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										 |  |  | #include "hw/virtio/virtio-gpu.h"
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										 |  |  | #include "qapi/error.h"
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										 |  |  | #include "qemu/module.h"
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										 |  |  | #include "virtio-vga.h"
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										 |  |  | 
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										 |  |  | static void virtio_vga_base_invalidate_display(void *opaque) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = opaque; | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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										 |  |  | 
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										 |  |  |     if (g->enable) { | 
					
						
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										 |  |  |         virtio_gpu_ops.invalidate(g); | 
					
						
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										 |  |  |     } else { | 
					
						
							|  |  |  |         vvga->vga.hw_ops->invalidate(&vvga->vga); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | static void virtio_vga_base_update_display(void *opaque) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = opaque; | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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										 |  |  |     if (g->enable) { | 
					
						
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										 |  |  |         virtio_gpu_ops.gfx_update(g); | 
					
						
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										 |  |  |     } else { | 
					
						
							|  |  |  |         vvga->vga.hw_ops->gfx_update(&vvga->vga); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
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										 |  |  | static void virtio_vga_base_text_update(void *opaque, console_ch_t *chardata) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = opaque; | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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										 |  |  |     if (g->enable) { | 
					
						
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										 |  |  |         if (virtio_gpu_ops.text_update) { | 
					
						
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										 |  |  |             virtio_gpu_ops.text_update(g, chardata); | 
					
						
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										 |  |  |         } | 
					
						
							|  |  |  |     } 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_base_ui_info(void *opaque, uint32_t idx, QemuUIInfo *info) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = opaque; | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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										 |  |  | 
 | 
					
						
							|  |  |  |     if (virtio_gpu_ops.ui_info) { | 
					
						
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										 |  |  |         return virtio_gpu_ops.ui_info(g, idx, info); | 
					
						
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										 |  |  |     } | 
					
						
							|  |  |  |     return -1; | 
					
						
							|  |  |  | } | 
					
						
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										 |  |  | static void virtio_vga_base_gl_block(void *opaque, bool block) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = opaque; | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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							|  |  |  |     if (virtio_gpu_ops.gl_block) { | 
					
						
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										 |  |  |         virtio_gpu_ops.gl_block(g, block); | 
					
						
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										 |  |  |     } | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
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										 |  |  | static const GraphicHwOps virtio_vga_base_ops = { | 
					
						
							|  |  |  |     .invalidate = virtio_vga_base_invalidate_display, | 
					
						
							|  |  |  |     .gfx_update = virtio_vga_base_update_display, | 
					
						
							|  |  |  |     .text_update = virtio_vga_base_text_update, | 
					
						
							|  |  |  |     .ui_info = virtio_vga_base_ui_info, | 
					
						
							|  |  |  |     .gl_block = virtio_vga_base_gl_block, | 
					
						
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										 |  |  | }; | 
					
						
							|  |  |  | 
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										 |  |  | static const VMStateDescription vmstate_virtio_vga_base = { | 
					
						
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										 |  |  |     .name = "virtio-vga", | 
					
						
							|  |  |  |     .version_id = 2, | 
					
						
							|  |  |  |     .minimum_version_id = 2, | 
					
						
							|  |  |  |     .fields = (VMStateField[]) { | 
					
						
							|  |  |  |         /* no pci stuff here, saving the virtio device will handle that */ | 
					
						
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										 |  |  |         VMSTATE_STRUCT(vga, VirtIOVGABase, 0, | 
					
						
							|  |  |  |                        vmstate_vga_common, VGACommonState), | 
					
						
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										 |  |  |         VMSTATE_END_OF_LIST() | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
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										 |  |  | /* VGA device wrapper around PCI device around virtio GPU */ | 
					
						
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										 |  |  | static void virtio_vga_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | 
					
						
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										 |  |  | { | 
					
						
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										 |  |  |     VirtIOVGABase *vvga = VIRTIO_VGA_BASE(vpci_dev); | 
					
						
							|  |  |  |     VirtIOGPUBase *g = vvga->vgpu; | 
					
						
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										 |  |  |     VGACommonState *vga = &vvga->vga; | 
					
						
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										 |  |  |     Error *err = NULL; | 
					
						
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										 |  |  |     uint32_t offset; | 
					
						
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										 |  |  |     int i; | 
					
						
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										 |  |  | 
 | 
					
						
							|  |  |  |     /* init vga compat bits */ | 
					
						
							|  |  |  |     vga->vram_size_mb = 8; | 
					
						
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										 |  |  |     vga_common_init(vga, OBJECT(vpci_dev)); | 
					
						
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										 |  |  |     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); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     /*
 | 
					
						
							|  |  |  |      * 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. | 
					
						
							|  |  |  |      */ | 
					
						
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											2016-09-29 12:04:40 +08:00
										 |  |  |     vpci_dev->modern_mem_bar_idx = 2; | 
					
						
							|  |  |  |     vpci_dev->msix_bar_idx = 4; | 
					
						
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											2020-04-22 23:54:54 +02:00
										 |  |  |     vpci_dev->modern_io_bar_idx = 5; | 
					
						
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										 |  |  | 
 | 
					
						
							|  |  |  |     if (!(vpci_dev->flags & VIRTIO_PCI_FLAG_PAGE_PER_VQ)) { | 
					
						
							|  |  |  |         /*
 | 
					
						
							|  |  |  |          * with page-per-vq=off there is no padding space we can use | 
					
						
							|  |  |  |          * for the stdvga registers.  Make the common and isr regions | 
					
						
							|  |  |  |          * smaller then. | 
					
						
							|  |  |  |          */ | 
					
						
							|  |  |  |         vpci_dev->common.size /= 2; | 
					
						
							|  |  |  |         vpci_dev->isr.size /= 2; | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | 
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										 |  |  |     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; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     /* init virtio bits */ | 
					
						
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										 |  |  |     virtio_pci_force_virtio_1(vpci_dev); | 
					
						
							| 
									
										
											  
											
												qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
In addition to the qdev_create() patterns converted so far, we have a
qdev_set_parent_bus() pattern.  Mostly when we embed a device in a
parent device rather than allocating it on the heap.
This pattern also puts devices in the dangerous "no QOM parent, but
plugged into bus" state I explained in recent commit "qdev: New
qdev_new(), qdev_realize(), etc."
Apply same solution: convert to qdev_realize().  Coccinelle script:
    @@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(DEVICE(dev), bus, errp);
    @ depends on !(file in "qdev-monitor.c") && !(file in "hw/core/qdev.c")@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(dev, bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(dev, bus, errp);
    @@
    expression dev, bus;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    qdev_init_nofail(DEVICE(dev));
    +    qdev_realize(DEVICE(dev), bus, &error_fatal);
Unconverted uses of qdev_set_parent_bus() remain.  They'll be
converted later in this series.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-12-armbru@redhat.com>
[Also convert new hw/virtio/vhost-user-vsock-pci.c]
											
										 
											2020-06-10 07:32:00 +02:00
										 |  |  |     qdev_realize(DEVICE(g), BUS(&vpci_dev->bus), &err); | 
					
						
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										 |  |  |     if (err) { | 
					
						
							|  |  |  |         error_propagate(errp, err); | 
					
						
							|  |  |  |         return; | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  | 
 | 
					
						
							|  |  |  |     /* add stdvga mmio regions */ | 
					
						
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											2018-06-26 08:09:41 +02:00
										 |  |  |     pci_std_vga_mmio_region_init(vga, OBJECT(vvga), &vpci_dev->modern_bar, | 
					
						
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										 |  |  |                                  vvga->vga_mrs, true, false); | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							|  |  |  |     vga->con = g->scanout[0].con; | 
					
						
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										 |  |  |     graphic_console_set_hwops(vga->con, &virtio_vga_base_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), | 
					
						
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												hw: Fix error API violation around object_property_set_link()
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL.  Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call.
virtio_gpu_pci_base_realize(), virtio_vga_base_realize(),
sparc32_ledma_device_realize(), sparc32_dma_realize(),
sparc32_dma_realize() xilinx_axidma_realize(), mips_cps_realize(),
macio_realize_ide(), xilinx_enet_realize(), and
virtio_iommu_pci_realize() are wrong that way: they reuse the argument
they pass to object_property_set_link() for another call.
Harmless, because object_property_set_link() can't actually fail for
them: it fails when the property doesn't exist, is not settable, or
its .check() method fails.  Fix by passing &error_abort instead.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Alistair Francis <alistair@alistair23.me>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org
Cc: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Cc: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200630090351.1247703-16-armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
											
										 
											2020-06-30 11:03:40 +02:00
										 |  |  |                                  "device", &error_abort); | 
					
						
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										 |  |  |     } | 
					
						
							| 
									
										
										
										
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										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
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										 |  |  | static void virtio_vga_base_reset(DeviceState *dev) | 
					
						
							| 
									
										
										
										
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										 |  |  | { | 
					
						
							| 
									
										
										
										
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										 |  |  |     VirtIOVGABaseClass *klass = VIRTIO_VGA_BASE_GET_CLASS(dev); | 
					
						
							|  |  |  |     VirtIOVGABase *vvga = VIRTIO_VGA_BASE(dev); | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
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											2018-08-21 13:13:12 +02:00
										 |  |  |     /* reset virtio-gpu */ | 
					
						
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										 |  |  |     klass->parent_reset(dev); | 
					
						
							| 
									
										
										
										
											2018-08-21 13:13:12 +02:00
										 |  |  | 
 | 
					
						
							|  |  |  |     /* reset vga */ | 
					
						
							|  |  |  |     vga_common_reset(&vvga->vga); | 
					
						
							| 
									
										
										
										
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										 |  |  |     vga_dirty_log_start(&vvga->vga); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  | static Property virtio_vga_base_properties[] = { | 
					
						
							| 
									
										
										
										
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										 |  |  |     DEFINE_VIRTIO_GPU_PCI_PROPERTIES(VirtIOPCIProxy), | 
					
						
							|  |  |  |     DEFINE_PROP_END_OF_LIST(), | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  | static void virtio_vga_base_class_init(ObjectClass *klass, void *data) | 
					
						
							| 
									
										
										
										
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										 |  |  | { | 
					
						
							|  |  |  |     DeviceClass *dc = DEVICE_CLASS(klass); | 
					
						
							|  |  |  |     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | 
					
						
							| 
									
										
										
										
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										 |  |  |     VirtIOVGABaseClass *v = VIRTIO_VGA_BASE_CLASS(klass); | 
					
						
							| 
									
										
										
										
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										 |  |  |     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); | 
					
						
							| 
									
										
										
										
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										 |  |  |     device_class_set_props(dc, virtio_vga_base_properties); | 
					
						
							| 
									
										
										
										
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										 |  |  |     dc->vmsd = &vmstate_virtio_vga_base; | 
					
						
							| 
									
										
										
										
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										 |  |  |     dc->hotpluggable = false; | 
					
						
							| 
									
										
										
										
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										 |  |  |     device_class_set_parent_reset(dc, virtio_vga_base_reset, | 
					
						
							| 
									
										
										
										
											2019-03-07 09:02:43 +01:00
										 |  |  |                                   &v->parent_reset); | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  |     k->realize = virtio_vga_base_realize; | 
					
						
							| 
									
										
										
										
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										 |  |  |     pcidev_k->romfile = "vgabios-virtio.bin"; | 
					
						
							|  |  |  |     pcidev_k->class_id = PCI_CLASS_DISPLAY_VGA; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  | static TypeInfo virtio_vga_base_info = { | 
					
						
							|  |  |  |     .name          = TYPE_VIRTIO_VGA_BASE, | 
					
						
							|  |  |  |     .parent        = TYPE_VIRTIO_PCI, | 
					
						
							|  |  |  |     .instance_size = sizeof(struct VirtIOVGABase), | 
					
						
							|  |  |  |     .class_size    = sizeof(struct VirtIOVGABaseClass), | 
					
						
							|  |  |  |     .class_init    = virtio_vga_base_class_init, | 
					
						
							|  |  |  |     .abstract      = true, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define TYPE_VIRTIO_VGA "virtio-vga"
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define VIRTIO_VGA(obj)                             \
 | 
					
						
							|  |  |  |     OBJECT_CHECK(VirtIOVGA, (obj), TYPE_VIRTIO_VGA) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | typedef struct VirtIOVGA { | 
					
						
							|  |  |  |     VirtIOVGABase parent_obj; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     VirtIOGPU     vdev; | 
					
						
							|  |  |  | } VirtIOVGA; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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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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										 |  |  |     VIRTIO_VGA_BASE(dev)->vgpu = VIRTIO_GPU_BASE(&dev->vdev); | 
					
						
							| 
									
										
										
										
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										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
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										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-12-05 17:57:03 -02:00
										 |  |  | static VirtioPCIDeviceTypeInfo virtio_vga_info = { | 
					
						
							|  |  |  |     .generic_name  = TYPE_VIRTIO_VGA, | 
					
						
							| 
									
										
										
										
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										 |  |  |     .parent        = TYPE_VIRTIO_VGA_BASE, | 
					
						
							| 
									
										
										
										
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										 |  |  |     .instance_size = sizeof(struct VirtIOVGA), | 
					
						
							|  |  |  |     .instance_init = virtio_vga_inst_initfn, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void virtio_vga_register_types(void) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
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										 |  |  |     type_register_static(&virtio_vga_base_info); | 
					
						
							| 
									
										
										
										
											2018-12-05 17:57:03 -02:00
										 |  |  |     virtio_pci_types_register(&virtio_vga_info); | 
					
						
							| 
									
										
										
										
											2014-09-10 14:25:45 +02:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | type_init(virtio_vga_register_types) |