We have verified VT-d2 features works with PCI passthrough on KVM. To enable
it, you need to turn on interrupt remapping in kernel config.
Interrupt remapping is a security/isolation feature where interrupt delivery is
qualified with device's bus/device/function in interrupt remapping table
)
improvement doing the remapping and checking in HW with a predefined table
rather than multiplexing this in software in the hypervisor layer?
-Original Message-
From: Kay, Allen M [mailto:allen.m@intel.com]
Sent: 14 May 2009 15:02
To: Fischer, Anna; kvm@vger.kernel.org
Subject: RE: KVM
, May 14, 2009 4:12 PM
To: Kay, Allen M
Cc: kvm@vger.kernel.org
Subject: RE: KVM VT-d2?
I thought that one use case of VT-d2 interrupt remapping was to be able to
safely and more efficiently deliver interrupts to the CPU that runs the
particular VCPU of the guest that owns the I/O device
