Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-24 Thread Xu, Quan
> On 25.12.2015 at 9:51am, wrote: > > From: Jan Beulich [mailto:jbeul...@suse.com] > > Sent: Wednesday, December 23, 2015 6:39 PM > > > > >>> Quan Xu 12/23/15 9:26 AM >>> > > >This patches are based on Kevin Tian's previous discussion 'Revisit > > >VT-d asynchronous > > flush issue'. > > >Fix cur

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-24 Thread Xu, Quan
> On 25.12.2015 at 9:54am, wrote: > > From: Xu, Quan > > Sent: Wednesday, December 23, 2015 4:26 PM > > > > This patches are based on Kevin Tian's previous discussion 'Revisit > > VT-d asynchronous flush issue'. > > Fix current timeout concern and also allow limited ATS support in a light > > way

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-24 Thread Tian, Kevin
> From: Xu, Quan > Sent: Wednesday, December 23, 2015 4:26 PM > > This patches are based on Kevin Tian's previous discussion 'Revisit VT-d > asynchronous > flush issue'. > Fix current timeout concern and also allow limited ATS support in a light way: > > 1. Check VT-d Device-TLB flush error. >

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-24 Thread Tian, Kevin
> From: Jan Beulich [mailto:jbeul...@suse.com] > Sent: Wednesday, December 23, 2015 6:39 PM > > >>> Quan Xu 12/23/15 9:26 AM >>> > >This patches are based on Kevin Tian's previous discussion 'Revisit VT-d > >asynchronous > flush issue'. > >Fix current timeout concern and also allow limited ATS s

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Xu, Quan
> On 23.12.2015 at 6:39pm, 'Jan Beulich' wrote: > >>> Quan Xu 12/23/15 9:26 AM >>> > >This patches are based on Kevin Tian's previous discussion 'Revisit VT-d > asynchronous flush issue'. > >Fix current timeout concern and also allow limited ATS support in a light > >way: > > > >1. Check VT-d Dev

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Xu, Quan
> On 23.12.2015 at 6:41pm, wrote: > >>> "Xu, Quan" 12/23/15 11:19 AM >>> > >> On 23.12.2015 at 4:26pm, wrote: > >> Subject: [PATCH v4 0/3] VT-d Device-TLB flush issue Quan Xu (3): > >> VT-d: Check VT-d Device-TLB flush error. > >> VT-d: Reduce spin timeout to 1ms, which can be boot-time chan

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Jan Beulich
>>> Quan Xu 12/23/15 9:26 AM >>> >This patches are based on Kevin Tian's previous discussion 'Revisit VT-d >asynchronous flush issue'. >Fix current timeout concern and also allow limited ATS support in a light way: > >1. Check VT-d Device-TLB flush error. >This patch checks all kinds of error and

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Jan Beulich
>>> "Xu, Quan" 12/23/15 11:19 AM >>> >> On 23.12.2015 at 4:26pm, wrote: >> Subject: [PATCH v4 0/3] VT-d Device-TLB flush issue >> Quan Xu (3): >> VT-d: Check VT-d Device-TLB flush error. >> VT-d: Reduce spin timeout to 1ms, which can be boot-time changed. >> VT-d: Fix vt-d Device-TLB flush

Re: [Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Xu, Quan
> On 23.12.2015 at 4:26pm, wrote: > Subject: [PATCH v4 0/3] VT-d Device-TLB flush issue > Quan Xu (3): > VT-d: Check VT-d Device-TLB flush error. > VT-d: Reduce spin timeout to 1ms, which can be boot-time changed. > VT-d: Fix vt-d Device-TLB flush timeout issue. Jan, If patch 1 is a hu

[Xen-devel] [PATCH v4 0/3] VT-d Device-TLB flush issue

2015-12-23 Thread Quan Xu
This patches are based on Kevin Tian's previous discussion 'Revisit VT-d asynchronous flush issue'. Fix current timeout concern and also allow limited ATS support in a light way: 1. Check VT-d Device-TLB flush error. This patch checks all kinds of error and all the way up the call trees of VT