[Xen-users] Xen 4.2 Windows 8 Issues

[John Wargo <wargo.john25@xxxxxxxxx>]

I started with Fedora 19 (KDE) and have installed Xen 4.2 on it. I followed the install guide, with the exception of the network bridge, as my current wireless card doesn't support it (I'm working on getting a wired connection).

My (relevant) hardware setup:
    AMD FX6300
    ASUS m5a99x evo r2.0 (IOMMU & Virtualization enabled)
    Radeon 6670 (Dedicated Dom0)
    Radeon 7850 (Passthrough to windows)

As the title suggests, I've been trying to install Windows 8, and I've run into the following issue:

    - Install completes successfully (Until reboot)
    - Install process completes setting up devices
    - Install process fails (hangs) after that with no graphical output.

The VM will just hang there, and if I don't kill it in about 1 minute, will bring down my entire system. (Including Dom0)

Here is my configuration:
    # Name for the HVM
    name             = "win8"
    # Use HVM
    builder          = "hvm"
    # Create 4 cpus on physical cores 2-5
    vcpus            = 4
    cpus             = "2-5"
    # 8GB memory
    memory           = 8192
    # Use lvm for windows root, and pass in cdrom for install
    disk             = ['phy:/dev/fedora_hypervisor/windows,hda,w', 'phy:/dev/sr0,hdc:cdrom,r']
    # Uncomment and configure once br0 is created
    #vif
    # Boot cd rom
    boot             = "d" #"c"
    # Use vnc for display
    vnc              = 1
    # No vnc password
    vncpasswd        = ""
    # Emulate VGA
    vga              = "stdvga"
    # Provide graphics device
    nographic        = 1
    # Emulate usb bus
    usb              = 1
    # Use absolute coordinates for vnc
    usbdevice        = 'tablet'
    # Use graphics card (Radeon 7850) as secondary / optional
    gfx_passthrough  = 0
    # Pass through various PCI devices
    # 2:00.0 - Radeon 7850
    # 2:00.1 - Radeon 7850 (Sound)
    # 0:12.0 - USB Devices (Mouse / Keyboard)
    pci              = ['02:00.0', '02:00.1', '00:12.0']
    # Allow windows to see the local time
    localtime        = 1
    # Pass some PCI information to windows
    viridian=1
I've also tried using irqs=[18], but that did nothing...

Afterwards, I get a notification informing me that IRQ 18 was disabled..
    Message from syslogd@Hypervisor at Oct 21 20:28:19 ...
     kernel:[ 1312.294827] Disabling IRQ #18

xl dmesg output:
    ss = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
    (XEN) AMD-Vi: IO_PAGE_FAULT: domain = 0, device id = 0x0090, fault address = 0xffffffc0
[truncated output, only first 10 iterations are shown...]

What is the best way to go about solving this problem?

As always just ask for more info,
-John

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