Hi Zhi,
Thanks for your reply and suggestion about fix. I am a little bit busy now.
I will review the code as soon as possible. Also thanks
Joonas for the reminding. We'll try to think out the new fix.
Best regards,
Zheng Wang
On 12/15/2022 12:47 PM, Joonas Lahtinen wrote:
> (+ Tvrtko as FYI)
>
> Zhenyu, can you take a look at the patch ASAP.
>
> Regards, Joonas
Thanks so much for the reminding and patch.
Actually I don't think it is proper fix as:
split_2MB_gtt_entry() is going to allocate a new spt structure, which
(+ Tvrtko as FYI)
Zhenyu, can you take a look at the patch ASAP.
Regards, Joonas
Quoting Dave Airlie (2022-10-27 08:12:31)
> On Thu, 27 Oct 2022 at 13:26, Zheng Hacker wrote:
> >
> > Dave Airlie 于2022年10月27日周四 08:01写道：
> > >
> > > On Fri, 7 Oct 2022 at 11:38, Zheng Wang wrote:
> > > >
> > > >
Dave Airlie 于2022年10月27日周四 13:12写道：
> I'll add some more people who can probably look at it.
>
> Dave.
Got it, Thanks Dave.
Regards,
Zheng Wang
On Thu, 27 Oct 2022 at 13:26, Zheng Hacker wrote:
>
> Dave Airlie 于2022年10月27日周四 08:01写道：
> >
> > On Fri, 7 Oct 2022 at 11:38, Zheng Wang wrote:
> > >
> > > If intel_gvt_dma_map_guest_page failed, it will call
> > > ppgtt_invalidate_spt, which will finally free the spt.
> > > But the caller does
Dave Airlie 于2022年10月27日周四 08:01写道：
>
> On Fri, 7 Oct 2022 at 11:38, Zheng Wang wrote:
> >
> > If intel_gvt_dma_map_guest_page failed, it will call
> > ppgtt_invalidate_spt, which will finally free the spt.
> > But the caller does not notice that, it will free spt again in error path.
> >
> > Fix
On Fri, 7 Oct 2022 at 11:38, Zheng Wang wrote:
>
> If intel_gvt_dma_map_guest_page failed, it will call
> ppgtt_invalidate_spt, which will finally free the spt.
> But the caller does not notice that, it will free spt again in error path.
>
> Fix this by spliting invalidate and free in ppgtt_invali
