[Qemu-devel] [RfC PATCH 10/15] virtio-vga: virtio-1.0 adaptions [fixup]

[Gerd Hoffmann <kraxel@redhat.com>]

[root@fedora ~]# bin/lspci -vvs2
00:02.0 VGA compatible controller: Red Hat, Inc Device 1050 (rev 01)
(prog-if 00 [VGA controller])
	Subsystem: Red Hat, Inc Device 1100
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 10
	Region 0: Memory at fe800000 (64-bit, prefetchable) [size=512K]
	Region 2: Memory at fe000000 (32-bit, prefetchable) [size=8M]
	Region 4: Memory at febd0000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at febc0000 [disabled] [size=64K]
	Capabilities: [84] MSI-X: Enable+ Count=3 Masked-
		Vector table: BAR=4 offset=00000000
		PBA: BAR=4 offset=00000800
	Capabilities: [70] Vendor Specific Information: VirtIO: Notify
		BAR=0 offset=00003000 size=00040000 multiplier=00001000
	Capabilities: [60] Vendor Specific Information: VirtIO: DeviceCfg
		BAR=0 offset=00002000 size=00001000
	Capabilities: [50] Vendor Specific Information: VirtIO: ISR
		BAR=0 offset=00001000 size=00001000
	Capabilities: [40] Vendor Specific Information: VirtIO: CommonCfg
		BAR=0 offset=00000000 size=00001000
	Kernel driver in use: virtio-pci

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/display/virtio-vga.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index 176821b..0e48ba9 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -79,6 +79,12 @@ static int virtio_vga_init(VirtIOPCIProxy *vpci_dev)
     VGACommonState *vga = &vvga->vga;
 
     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;
+    /* avoid conflicts with vga framebuffer @ bar 2 */
+    vpci_dev->modern_mem_bar = 0;
+    vpci_dev->msix_bar = 4;
     if (qdev_init(DEVICE(g)) < 0) {
         return -1;
     }
@@ -124,9 +130,6 @@ static void virtio_vga_class_init(ObjectClass *klass, void *data)
 
     k->init = virtio_vga_init;
     pcidev_k->romfile = "vgabios-virtio.bin";
-    pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
-    pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_GPU;
-    pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
     pcidev_k->class_id = PCI_CLASS_DISPLAY_VGA;
 }
 
-- 
1.8.3.1