- #Qemu vga passthrough xp guest install
- #Qemu vga passthrough xp guest drivers
- #Qemu vga passthrough xp guest pro
- #Qemu vga passthrough xp guest software
I don't think this makes a big difference for AMD passthrough but it would if you were using an Nvidia card, reason being is that from qemu v2.1.1 there is a feature to hide the fact that KVM is running from the virtual machine.this is needed to get the Nvidia drivers to work inside the guest. Just some further observations then till you're back with the box.ġ4.04 does support passthrough but the stock version of qemu isn't the latest, think its v2.0. Once you've done this and rebooted the host run the following and post back the results.ĭo you know if you have iommu group separation of your devices? If not I've attached a shell script which will output your devices by group, run this on your host and post back the results.
I'm a little confused by your setup though so if you could start with clarifying this first.ġ) what is your host hardware (mobo, gfx for host only+additional)Ģ) what hardware do you want to passthrough to the guest?ģ) are you using legacy Seabios in the guest or OVMF?Īs the audio hardware on both the cards is the same your pci_stub arguments would affect both cards but just only the audio portion on the 2nd card.I'd recommend you simplify this for the moment by making your stub only for the video adapter of the card you wish to pass through.i think from your post this is the 7870 which means your stub just needs to be for 1002:6818.
#Qemu vga passthrough xp guest software
Hi, 14.04 does support passthrough.kernel patching only becomes necessary if you experience certain issues that come about because of vendor hardware designs or the combination of hardware and software specific to your use case needs it. I also tried without the audio ID in the stub line. I can run dmesg | grep stub and it shows the 7870 beinging stubbed out but thats as it. Rather than before when the screens would turn on but not display anything, now the screens simply do not get any signal from the r7. The 7870 gets stubbed out but the r7 never gets initialized. GRUB_CMDLINE_LINUX_DEFAULT="quiet splash amd_iommu=on vfio_iommu_type1 pci_stub.ids=1002:6818,1002:aab0" I've also tried using the pci_stub.id in the /etc/default/grub: I just cant figure out why the R7 is not displaying anything when I stub out the 7870. Both screens are using DVI.SO I know they're both being utilized. I know both cards are being used right this moment because my right screen is DVI to the R7 and my Left screen is DVI to the 7870 and VGA to the R7. The upgrades seem to have made the issue worse. The 3.19 kernel see's the R7 in "additional drivers" and also sees an "unknown device" The 4.0.x kernels see the 7870 in "additional drivers" and sees the same "unknown device"
#Qemu vga passthrough xp guest pro
Oland PRO Ġ2:00.1 Audio device : Advanced Micro Devices, Inc. Cape Verde/Pitcairn HDMI Audio Ġ2:00.0 VGA compatible controller : Advanced Micro Devices, Inc. Pitcairn XT Ġ1:00.1 Audio device : Advanced Micro Devices, Inc. The R7 displays "activate" but are completely black and will not show anything.Ġ1:00.0 VGA compatible controller : Advanced Micro Devices, Inc. When I stub out the 7870 the thing boots and the 7870 just displays a flashing "_". I went ahead and tried out the 4.0.2 & 4.0.4 kernels as well. I can TTY and see items from the 7870 but no GUI. Now when I stub out the 7870 and reboot I get nothing from the r7 card.
#Qemu vga passthrough xp guest install
I did a fresh install of 15.04 as my attempted at an upgrade rendered my machine unusable. Qemu-system-x86_64: vfio_bar_write(,0xd2ef, 0x0, 1) failed: Device or resource busy Qemu-system-x86_64: vfio_bar_write(,0xd2e8, 0x0, 1) failed: Device or resource busy Qemu-system-x86_64: vfio_bar_write(,0xd2e9, 0x0, 1) failed: Device or resource busy Qemu-system-x86_64: vfio_bar_write(,0xd2ea, 0x0, 1) failed: Device or resource busy When using the 14.04(unpatched) version I was able to pci_stub my 7870 card but QEMU would throw errors when trying to use the device. The 7870 to be passed through to Win7, as well as a keyboard for initial setup(will use something else afterwards) I can not switch those 2 around as far as where on the Mobo they're being used as I have a water cooler on my 7870 and it does not fit on the second PCIe slot. GPU - AMD R7 240(Host OS/Linux) - Second PCIe Slot GPU - AMD HD7870(Guest OS/Windows) - First PCIe Slot My main question is does the 14.04 kernel work with GPU pass through without any kernel patches?
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