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vfio/pci: Consolidate VGA setup 

Combine VGA discovery and registration.  Quirks can have dependencies
on BARs, so the quirks push out until after we've scanned the BARs.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Alex Williamson 2016-05-26 09:43:21 -06:00
parent 4225f2b670
commit 182bca4592
1 changed files with 26 additions and 23 deletions
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49
hw/vfio/pci.c
View File

@ -1452,29 +1452,6 @@ static void vfio_bars_setup(VFIOPCIDevice *vdev)
for (i = 0; i < PCI_ROM_SLOT; i++) {
vfio_bar_setup(vdev, i);
}
if (vdev->vga) {
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_MEM],
"vfio-vga-mmio@0xa0000",
QEMU_PCI_VGA_MEM_SIZE);
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_IO_LO],
"vfio-vga-io@0x3b0",
QEMU_PCI_VGA_IO_LO_SIZE);
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
"vfio-vga-io@0x3c0",
QEMU_PCI_VGA_IO_HI_SIZE);
pci_register_vga(&vdev->pdev, &vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem);
vfio_vga_quirk_setup(vdev);
}
}
static void vfio_bars_exit(VFIOPCIDevice *vdev)
@ -2087,14 +2064,36 @@ int vfio_populate_vga(VFIOPCIDevice *vdev)
vdev->vga->region[QEMU_PCI_VGA_MEM].nr = QEMU_PCI_VGA_MEM;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_MEM].quirks);
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_MEM],
"vfio-vga-mmio@0xa0000",
QEMU_PCI_VGA_MEM_SIZE);
vdev->vga->region[QEMU_PCI_VGA_IO_LO].offset = QEMU_PCI_VGA_IO_LO_BASE;
vdev->vga->region[QEMU_PCI_VGA_IO_LO].nr = QEMU_PCI_VGA_IO_LO;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].quirks);
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_IO_LO],
"vfio-vga-io@0x3b0",
QEMU_PCI_VGA_IO_LO_SIZE);
vdev->vga->region[QEMU_PCI_VGA_IO_HI].offset = QEMU_PCI_VGA_IO_HI_BASE;
vdev->vga->region[QEMU_PCI_VGA_IO_HI].nr = QEMU_PCI_VGA_IO_HI;
QLIST_INIT(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].quirks);
memory_region_init_io(&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem,
OBJECT(vdev), &vfio_vga_ops,
&vdev->vga->region[QEMU_PCI_VGA_IO_HI],
"vfio-vga-io@0x3c0",
QEMU_PCI_VGA_IO_HI_SIZE);
pci_register_vga(&vdev->pdev, &vdev->vga->region[QEMU_PCI_VGA_MEM].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_LO].mem,
&vdev->vga->region[QEMU_PCI_VGA_IO_HI].mem);
return 0;
}
@ -2557,6 +2556,10 @@ static int vfio_initfn(PCIDevice *pdev)
goto out_teardown;
}
if (vdev->vga) {
vfio_vga_quirk_setup(vdev);
}
/* QEMU emulates all of MSI & MSIX */
if (pdev->cap_present & QEMU_PCI_CAP_MSIX) {
memset(vdev->emulated_config_bits + pdev->msix_cap, 0xff,