Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Xu, Quan
On June 15, 2016 4:42 PM, Jan Beulich wrote: > >>> On 15.06.16 at 10:35, wrote: > > On June 15, 2016 4:22 PM, Tian, Kevin wrote: > >> > From: Xu, Quan > >> > Sent: Wednesday, June 15, 2016 4:16 PM > >> > > >> > On June 15, 2016 3:45

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Jan Beulich
>>> On 15.06.16 at 10:35, wrote: > On June 15, 2016 4:22 PM, Tian, Kevin wrote: >> > From: Xu, Quan >> > Sent: Wednesday, June 15, 2016 4:16 PM >> > >> > On June 15, 2016 3:45 PM, Jan Beulich wrote: >> > > >>> On 15.06.16 at 03:54,

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Xu, Quan
On June 15, 2016 4:22 PM, Tian, Kevin wrote: > > From: Xu, Quan > > Sent: Wednesday, June 15, 2016 4:16 PM > > > > On June 15, 2016 3:45 PM, Jan Beulich wrote: > > > >>> On 15.06.16 at 03:54, wrote: > > > > Jan, > > > > Could you help

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Tian, Kevin
> From: Xu, Quan > Sent: Wednesday, June 15, 2016 4:16 PM > > On June 15, 2016 3:45 PM, Jan Beulich wrote: > > >>> On 15.06.16 at 03:54, wrote: > > > Jan, > > > Could you help me review patch 7? Thanks. > > > Then, I can send out next v9 soon and get

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Xu, Quan
On June 15, 2016 3:45 PM, Jan Beulich wrote: > >>> On 15.06.16 at 03:54, wrote: > > Jan, > > Could you help me review patch 7? Thanks. > > Then, I can send out next v9 soon and get started to focus on next > > patch set. > > That patch is fine now from my

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-15 Thread Jan Beulich
>>> On 15.06.16 at 03:54, wrote: > Jan, > Could you help me review patch 7? Thanks. > Then, I can send out next v9 soon and get started to focus on next patch > set. That patch is fine now from my pov, feel free to stick my R-b on it. I actually have it queued for

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-14 Thread Xu, Quan
On June 14, 2016 12:37 AM, George Dunlap wrote: > On Mon, Jun 13, 2016 at 4:17 PM, Xu, Quan wrote: > > From: Quan Xu > > > > When IOMMU mapping is failed, we issue a best effort rollback, > > stopping IOMMU mapping, unmapping

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-13 Thread George Dunlap
On Mon, Jun 13, 2016 at 4:17 PM, Xu, Quan wrote: > From: Quan Xu > > When IOMMU mapping is failed, we issue a best effort rollback, stopping > IOMMU mapping, unmapping the previous IOMMU maps and then reporting the > error up to the call trees. When rollback

Re: [Xen-devel] [PATCH v8 02/11] IOMMU/MMU: enhance the call trees of IOMMU unmapping and mapping

2016-06-13 Thread Jan Beulich
>>> "Xu, Quan" 06/13/16 5:22 PM >>> >From: Quan Xu > >When IOMMU mapping is failed, we issue a best effort rollback, stopping >IOMMU mapping, unmapping the previous IOMMU maps and then reporting the >error up to the call trees. When rollback is not feasible