Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-11 Thread Alex Williamson
redhat.com; h...@zytor.com; > > x...@kernel.org; g...@kernel.org; pbonz...@redhat.com; > > dw...@infradead.org; j...@8bytes.org; jiang@linux.intel.com; > > linux-kernel@vger.kernel.org; io...@lists.linux-foundation.org; > > k...@vger.kernel.org > > Subject: Re: [v2 17/25] KVM

RE: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-10 Thread Wu, Feng
; dw...@infradead.org; j...@8bytes.org; jiang@linux.intel.com; > linux-kernel@vger.kernel.org; io...@lists.linux-foundation.org; > k...@vger.kernel.org > Subject: Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts > > On Mon, 2014-12-08 at 04:58 +, Wu, Feng wr

RE: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-09 Thread Wu, Feng
; dw...@infradead.org; j...@8bytes.org; jiang@linux.intel.com; > linux-kernel@vger.kernel.org; io...@lists.linux-foundation.org; > k...@vger.kernel.org > Subject: Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts > > On Mon, 2014-12-08 at 04:58 +, Wu, Feng wr

Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-07 Thread Alex Williamson
> k...@vger.kernel.org > > Subject: Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts > > > > Hi Feng, > > On 12/03/2014 08:39 AM, Feng Wu wrote: > > > This patch adds and documents a new attribute > > > KVM_DEV_VFIO_DEVICE_POSTING_IRQ in

RE: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-07 Thread Wu, Feng
bonz...@redhat.com; > dw...@infradead.org; j...@8bytes.org; alex.william...@redhat.com; > jiang@linux.intel.com > Cc: linux-kernel@vger.kernel.org; io...@lists.linux-foundation.org; > k...@vger.kernel.org > Subject: Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

Re: [v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-04 Thread Eric Auger
Hi Feng, On 12/03/2014 08:39 AM, Feng Wu wrote: > This patch adds and documents a new attribute > KVM_DEV_VFIO_DEVICE_POSTING_IRQ in KVM_DEV_VFIO_DEVICE group. > This new attribute is used for VT-d Posted-Interrupts. > > When guest OS changes the interrupt configuration for an > assigned device, s

[v2 17/25] KVM: kvm-vfio: User API for VT-d Posted-Interrupts

2014-12-02 Thread Feng Wu
This patch adds and documents a new attribute KVM_DEV_VFIO_DEVICE_POSTING_IRQ in KVM_DEV_VFIO_DEVICE group. This new attribute is used for VT-d Posted-Interrupts. When guest OS changes the interrupt configuration for an assigned device, such as, MSI/MSIx data/address fields, QEMU will use this IRQ