[PATCH] x86: Update VT-d Posted-Interrupts related information

2014-11-09 Thread Feng Wu
VT-d Posted-Interrupts(PI) is an enhancement to CPU side Posted-Interrupt. With VT-d Posted-Interrupts enabled, external interrupts from direct-assigned devices can be delivered to guests without VMM involvement when guest is running in non-root mode. If VT-d PI is supported by KVM, we need to upd

Re: [PATCH] x86: Update VT-d Posted-Interrupts related information

2014-11-10 Thread Alex Williamson
On Mon, 2014-11-10 at 14:31 +0800, Feng Wu wrote: > VT-d Posted-Interrupts(PI) is an enhancement to CPU side Posted-Interrupt. > With VT-d Posted-Interrupts enabled, external interrupts from > direct-assigned devices can be delivered to guests without VMM > involvement when guest is running in non-

RE: [PATCH] x86: Update VT-d Posted-Interrupts related information

2014-11-11 Thread Wu, Feng
PATCH] x86: Update VT-d Posted-Interrupts related information > > On Mon, 2014-11-10 at 14:31 +0800, Feng Wu wrote: > > VT-d Posted-Interrupts(PI) is an enhancement to CPU side Posted-Interrupt. > > With VT-d Posted-Interrupts enabled, external interrupts from > > direc