Hi all
I can't seem to find any information on vga-passthrough when booting through xen.efi, so I assume it should work. But I encounter a problem on a windows 7 HVM that boots fine when dom0 is booted through MBR but fails
when dom0 is booted through UEFI.
My system is:
DQ77KB motherboard with bios version 44
Core i7-3779T with VT-d
Intel HD graphics 4000
In the qemu log it seem like xen cannot reach the vga-bios. Is this a known problem when booting through xen.efi or is it a bug?
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:02.0 ...
register_real_device: Disable MSI translation via per device option
register_real_device: Disable power management
pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: No such file or directory: 0x0:0x2.0x0
pt_register_regions: IO region registered (size=0x00400000 base_addr=0xf7000004)
pt_register_regions: IO region registered (size=0x10000000 base_addr=0xe000000c)
pt_register_regions: IO region registered (size=0x00000040 base_addr=0x0000f001)
setup_vga_pt: vga bios size (0x0) is invalid!
register_real_device: Setup VGA BIOS of passthroughed gfx failed!
Log file is attached.
Kind regards Kristian Hagsted Rasmussen
