Re: [Xen-devel] [PATCH v8 0/7] VMX: Properly handle pi descriptor and per-cpu blocking list

2017-02-21 Thread Chao Gao
Hi, everyone. Really sorry for digging out this thread. Because feng has left Intel, I will take over this work, address some problems in his v8 patch set and send out a v9 verson later such that VT-d PI can work properly on Xen. Thanks, Chao On Fri, Nov 18, 2016 at 09:57:17AM +0800, Wu, Feng

Re: [Xen-devel] [PATCH v8 0/7] VMX: Properly handle pi descriptor and per-cpu blocking list

2016-11-17 Thread Wu, Feng
> -Original Message- > From: Tian, Kevin > Sent: Friday, November 18, 2016 11:03 AM > To: Wu, Feng ; xen-devel@lists.xen.org > Cc: jbeul...@suse.com; andrew.coop...@citrix.com; > george.dun...@eu.citrix.com; dario.faggi...@citrix.com > Subject: RE: [PATCH v8 0/7] VMX:

Re: [Xen-devel] [PATCH v8 0/7] VMX: Properly handle pi descriptor and per-cpu blocking list

2016-11-17 Thread Tian, Kevin
> From: Wu, Feng > Sent: Friday, November 18, 2016 9:57 AM > > The current VT-d PI related code may operate incorrectly in the > following scenarios: > 1. When the last assigned device is dettached from the domain, all > the PI related hooks are removed then, however, the vCPU can be > blocked,

[Xen-devel] [PATCH v8 0/7] VMX: Properly handle pi descriptor and per-cpu blocking list

2016-11-17 Thread Feng Wu
The current VT-d PI related code may operate incorrectly in the following scenarios: 1. When the last assigned device is dettached from the domain, all the PI related hooks are removed then, however, the vCPU can be blocked, switched to another pCPU, etc, all without the aware of PI. After the