On 2019/9/24 上午10:02, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Friday, September 20, 2019 9:19 AM
On 2019/9/20 上午6:54, Tian, Kevin wrote:
From: Paolo Bonzini [mailto:pbonz...@redhat.com]
Sent: Thursday, September 19, 2019 7:14 PM
On 19/09/19 09:16, Tian, Kevin
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Friday, September 20, 2019 9:19 AM
>
> On 2019/9/20 上午6:54, Tian, Kevin wrote:
> >> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> >> Sent: Thursday, September 19, 2019 7:14 PM
> >>
> >> On 19/09/19 09:16, Tian, Kevin wrote:
> > why
On Fri, Sep 20, 2019 at 09:15:40AM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午10:06, Michael S. Tsirkin wrote:
> > On Thu, Sep 19, 2019 at 05:37:48PM +0800, Jason Wang wrote:
> > > On 2019/9/19 下午3:16, Tian, Kevin wrote:
> > > > +Paolo to help clarify here.
> > > >
> > > > > From: Jason Wang
On 2019/9/19 下午10:06, Michael S. Tsirkin wrote:
On Thu, Sep 19, 2019 at 05:37:48PM +0800, Jason Wang wrote:
On 2019/9/19 下午3:16, Tian, Kevin wrote:
+Paolo to help clarify here.
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Thursday, September 19, 2019 2:32 PM
On 2019/9/19 下午2:17,
On 2019/9/20 上午6:54, Tian, Kevin wrote:
From: Paolo Bonzini [mailto:pbonz...@redhat.com]
Sent: Thursday, September 19, 2019 7:14 PM
On 19/09/19 09:16, Tian, Kevin wrote:
why GPA1 and GPA2 should be both dirty?
even they have the same HVA due to overlaping virtual address space
in
two
> From: Paolo Bonzini [mailto:pbonz...@redhat.com]
> Sent: Thursday, September 19, 2019 7:14 PM
>
> On 19/09/19 09:16, Tian, Kevin wrote:
> >>> why GPA1 and GPA2 should be both dirty?
> >>> even they have the same HVA due to overlaping virtual address space
> in
> >>> two processes, they still
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Friday, September 20, 2019 1:21 AM
>
> On Wed, 18 Sep 2019 07:21:05 +
> "Tian, Kevin" wrote:
>
> > > From: Jason Wang [mailto:jasow...@redhat.com]
> > > Sent: Wednesday, September 18, 2019 2:04 PM
> > >
> > > On 2019/9/18
On Wed, 18 Sep 2019 07:21:05 +
"Tian, Kevin" wrote:
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Wednesday, September 18, 2019 2:04 PM
> >
> > On 2019/9/18 上午9:31, Tian, Kevin wrote:
> > >> From: Alex Williamson [mailto:alex.william...@redhat.com]
> > >> Sent: Tuesday,
On Thu, Sep 19, 2019 at 05:37:48PM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午3:16, Tian, Kevin wrote:
> > +Paolo to help clarify here.
> >
> > > From: Jason Wang [mailto:jasow...@redhat.com]
> > > Sent: Thursday, September 19, 2019 2:32 PM
> > >
> > >
> > > On 2019/9/19 下午2:17, Yan Zhao
On 2019/9/19 下午7:14, Paolo Bonzini wrote:
On 19/09/19 09:16, Tian, Kevin wrote:
why GPA1 and GPA2 should be both dirty?
even they have the same HVA due to overlaping virtual address space in
two processes, they still correspond to two physical pages.
don't get what's your meaning :)
The
On 19/09/19 14:39, Jason Wang wrote:
>> In general, userspace cannot assume that it's okay to sync just through
>> GPA1. It must sync the host page if *either* GPA1 or GPA2 are marked
>> dirty.
>
> Maybe we need document this somewhere.
Well, it's implicit but it should be kind of obvious. The
On 2019/9/19 下午6:16, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 06:06:52PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:29, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:17, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
On 19/09/19 09:16, Tian, Kevin wrote:
>>> why GPA1 and GPA2 should be both dirty?
>>> even they have the same HVA due to overlaping virtual address space in
>>> two processes, they still correspond to two physical pages.
>>> don't get what's your meaning :)
>>
>> The point is not leave any corner
On Thu, Sep 19, 2019 at 06:06:52PM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午2:29, Yan Zhao wrote:
> > On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
> >> On 2019/9/19 下午2:17, Yan Zhao wrote:
> >>> On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
> On 2019/9/19
On 2019/9/19 下午5:36, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 05:35:05PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:32, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:29:54PM +0800, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:17, Yan Zhao wrote:
On 2019/9/19 下午2:29, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:17, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
On 2019/9/19 下午1:28, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
On Thu, Sep 19, 2019 at 05:35:05PM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午2:32, Yan Zhao wrote:
> > On Thu, Sep 19, 2019 at 02:29:54PM +0800, Yan Zhao wrote:
> >> On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
> >>> On 2019/9/19 下午2:17, Yan Zhao wrote:
> On Thu, Sep 19,
On 2019/9/19 下午3:16, Tian, Kevin wrote:
+Paolo to help clarify here.
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Thursday, September 19, 2019 2:32 PM
On 2019/9/19 下午2:17, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
On 2019/9/19 下午1:28, Yan Zhao
On 2019/9/19 下午2:32, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:29:54PM +0800, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
On 2019/9/19 下午2:17, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
On 2019/9/19 下午1:28, Yan Zhao wrote:
+Paolo to help clarify here.
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Thursday, September 19, 2019 2:32 PM
>
>
> On 2019/9/19 下午2:17, Yan Zhao wrote:
> > On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
> >> On 2019/9/19 下午1:28, Yan Zhao wrote:
> >>> On Thu, Sep 19,
On Thu, Sep 19, 2019 at 02:29:54PM +0800, Yan Zhao wrote:
> On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
> >
> > On 2019/9/19 下午2:17, Yan Zhao wrote:
> > > On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
> > >> On 2019/9/19 下午1:28, Yan Zhao wrote:
> > >>> On Thu, Sep
On Thu, Sep 19, 2019 at 02:32:03PM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午2:17, Yan Zhao wrote:
> > On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
> >> On 2019/9/19 下午1:28, Yan Zhao wrote:
> >>> On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
> On 2019/9/18
On 2019/9/19 下午2:17, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
On 2019/9/19 下午1:28, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
On 2019/9/18 下午4:37, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent:
On Thu, Sep 19, 2019 at 02:09:53PM +0800, Jason Wang wrote:
>
> On 2019/9/19 下午1:28, Yan Zhao wrote:
> > On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
> >> On 2019/9/18 下午4:37, Tian, Kevin wrote:
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Wednesday, September
On 2019/9/19 下午1:28, Yan Zhao wrote:
On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
On 2019/9/18 下午4:37, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Wednesday, September 18, 2019 2:10 PM
Note that the HVA to GPA mapping is not an 1:1 mapping. One HVA
On Thu, Sep 19, 2019 at 09:05:12AM +0800, Jason Wang wrote:
>
> On 2019/9/18 下午4:37, Tian, Kevin wrote:
> >> From: Jason Wang [mailto:jasow...@redhat.com]
> >> Sent: Wednesday, September 18, 2019 2:10 PM
> >>
> Note that the HVA to GPA mapping is not an 1:1 mapping. One HVA
> >> range
>
On 2019/9/18 下午4:37, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Wednesday, September 18, 2019 2:10 PM
Note that the HVA to GPA mapping is not an 1:1 mapping. One HVA
range
could be mapped to several GPA ranges.
This is fine. Currently vfio_dma maintains
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Wednesday, September 18, 2019 2:10 PM
>
> >>
> >> Note that the HVA to GPA mapping is not an 1:1 mapping. One HVA
> range
> >> could be mapped to several GPA ranges.
> > This is fine. Currently vfio_dma maintains IOVA->HVA mapping.
> >
> >
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Wednesday, September 18, 2019 2:10 PM
>
> On 2019/9/18 上午9:44, Tian, Kevin wrote:
> >> From: Jason Wang [mailto:jasow...@redhat.com]
> >> Sent: Tuesday, September 17, 2019 6:36 PM
> >>
> >> On 2019/9/17 下午4:48, Tian, Kevin wrote:
>
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Wednesday, September 18, 2019 2:04 PM
>
> On 2019/9/18 上午9:31, Tian, Kevin wrote:
> >> From: Alex Williamson [mailto:alex.william...@redhat.com]
> >> Sent: Tuesday, September 17, 2019 10:54 PM
> >>
> >> On Tue, 17 Sep 2019 08:48:36 +
>
On 2019/9/18 上午9:44, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Tuesday, September 17, 2019 6:36 PM
On 2019/9/17 下午4:48, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Monday, September 16, 2019 4:33 PM
On 2019/9/16 上午9:51, Tian, Kevin
On 2019/9/18 上午9:31, Tian, Kevin wrote:
From: Alex Williamson [mailto:alex.william...@redhat.com]
Sent: Tuesday, September 17, 2019 10:54 PM
On Tue, 17 Sep 2019 08:48:36 +
"Tian, Kevin" wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Monday, September 16, 2019 4:33 PM
On
> From: Tian, Kevin
> Sent: Wednesday, September 18, 2019 9:32 AM
>
> > From: Alex Williamson [mailto:alex.william...@redhat.com]
> > Sent: Tuesday, September 17, 2019 10:54 PM
> >
> > On Tue, 17 Sep 2019 08:48:36 +
> > "Tian, Kevin" wrote:
> >
> > > > From: Jason Wang
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Tuesday, September 17, 2019 6:36 PM
>
> On 2019/9/17 下午4:48, Tian, Kevin wrote:
> >> From: Jason Wang [mailto:jasow...@redhat.com]
> >> Sent: Monday, September 16, 2019 4:33 PM
> >>
> >>
> >> On 2019/9/16 上午9:51, Tian, Kevin wrote:
> >>> Hi,
> From: Alex Williamson [mailto:alex.william...@redhat.com]
> Sent: Tuesday, September 17, 2019 10:54 PM
>
> On Tue, 17 Sep 2019 08:48:36 +
> "Tian, Kevin" wrote:
>
> > > From: Jason Wang [mailto:jasow...@redhat.com]
> > > Sent: Monday, September 16, 2019 4:33 PM
> > >
> > >
> > > On
On Tue, 17 Sep 2019 08:48:36 +
"Tian, Kevin" wrote:
> > From: Jason Wang [mailto:jasow...@redhat.com]
> > Sent: Monday, September 16, 2019 4:33 PM
> >
> >
> > On 2019/9/16 上午9:51, Tian, Kevin wrote:
> > > Hi, Jason
> > >
> > > We had a discussion about dirty page tracking in VFIO, when
On 2019/9/17 下午4:48, Tian, Kevin wrote:
From: Jason Wang [mailto:jasow...@redhat.com]
Sent: Monday, September 16, 2019 4:33 PM
On 2019/9/16 上午9:51, Tian, Kevin wrote:
Hi, Jason
We had a discussion about dirty page tracking in VFIO, when vIOMMU
is enabled:
> From: Jason Wang [mailto:jasow...@redhat.com]
> Sent: Monday, September 16, 2019 4:33 PM
>
>
> On 2019/9/16 上午9:51, Tian, Kevin wrote:
> > Hi, Jason
> >
> > We had a discussion about dirty page tracking in VFIO, when vIOMMU
> > is enabled:
> >
> >
On 2019/9/16 上午9:51, Tian, Kevin wrote:
Hi, Jason
We had a discussion about dirty page tracking in VFIO, when vIOMMU
is enabled:
https://lists.nongnu.org/archive/html/qemu-devel/2019-09/msg02690.html
It's actually a similar model as vhost - Qemu cannot interpose the fast-path
DMAs thus
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