I saw already some discussions about interrupt remapping and support in Xen or KVM.
I understood that it really depends on processor and board if vt-d is fully supported including interrupt remapping or not.
I have a DX79TO motherboard and a intel core-I7 3820. For what i can find int he documentation interrupt remapping should work but it isn't.
In XEN or KVM i have allways the message interrupt remapping not enabled
Does anyone has an idea? I know i can get it to work with allow_assign_unsafe_interrupt but that was not the basic idea when i bought the hardware.
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