On 2018年04月18日 12:51, Peter Xu wrote:
During IOVA page table walk, there is a special case when:
- notify_unmap is set, meanwhile
- entry is invalid
In the past, we skip the entry always. This is not correct. We should
send UNMAP notification to registered notifiers in this case. Otherwise
On 2018年04月20日 13:11, Peter Xu wrote:
On Fri, Apr 20, 2018 at 12:57:13PM +0800, Jason Wang wrote:
On 2018年04月18日 12:51, Peter Xu wrote:
During IOVA page table walk, there is a special case when:
- notify_unmap is set, meanwhile
- entry is invalid
In the past, we skip the entry always. This
On Fri, Apr 20, 2018 at 12:57:13PM +0800, Jason Wang wrote:
>
>
> On 2018年04月18日 12:51, Peter Xu wrote:
> > During IOVA page table walk, there is a special case when:
> >
> > - notify_unmap is set, meanwhile
> > - entry is invalid
> >
> > In the past, we skip the entry always. This is not corr
On 2018年04月18日 12:51, Peter Xu wrote:
During IOVA page table walk, there is a special case when:
- notify_unmap is set, meanwhile
- entry is invalid
In the past, we skip the entry always. This is not correct. We should
send UNMAP notification to registered notifiers in this case. Otherwise
On Wed, Apr 18, 2018 at 05:29:56AM +, Liu, Yi L wrote:
> > Sent: Wednesday, April 18, 2018 12:51 PM
> > Subject: [Qemu-devel] [PATCH] intel-iommu: send PSI always when notify_unmap
> > set
> >
> > During IOVA page table walk, there is a special case when:
> Sent: Wednesday, April 18, 2018 12:51 PM
> Subject: [Qemu-devel] [PATCH] intel-iommu: send PSI always when notify_unmap
> set
>
> During IOVA page table walk, there is a special case when:
>
> - notify_unmap is set, meanwhile
> - entry is invalid
This is very brief des
On Wed, Apr 18, 2018 at 12:51:21PM +0800, Peter Xu wrote:
> During IOVA page table walk, there is a special case when:
>
> - notify_unmap is set, meanwhile
> - entry is invalid
>
> In the past, we skip the entry always. This is not correct. We should
> send UNMAP notification to registered noti
During IOVA page table walk, there is a special case when:
- notify_unmap is set, meanwhile
- entry is invalid
In the past, we skip the entry always. This is not correct. We should
send UNMAP notification to registered notifiers in this case. Otherwise
some stall pages will still be mapped in