Hi Peter,
On 05/18/2018 08:06 AM, Peter Xu wrote:
> On Thu, May 17, 2018 at 07:23:33PM +0200, Auger Eric wrote:
>> Hi Peter,
>>
>> On 05/04/2018 05:08 AM, Peter Xu wrote:
>>> IOMMU replay was carried out before in many use cases, e.g., context
>>> cache invalidations, domain flushes. We used this
On Thu, May 17, 2018 at 07:23:33PM +0200, Auger Eric wrote:
> Hi Peter,
>
> On 05/04/2018 05:08 AM, Peter Xu wrote:
> > IOMMU replay was carried out before in many use cases, e.g., context
> > cache invalidations, domain flushes. We used this mechanism to sync the
> > shadow page table by firstly
Hi Peter,
On 05/04/2018 05:08 AM, Peter Xu wrote:
> IOMMU replay was carried out before in many use cases, e.g., context
> cache invalidations, domain flushes. We used this mechanism to sync the
> shadow page table by firstly (1) unmap the whole address space, then
> (2) walk the page table to re
IOMMU replay was carried out before in many use cases, e.g., context
cache invalidations, domain flushes. We used this mechanism to sync the
shadow page table by firstly (1) unmap the whole address space, then
(2) walk the page table to remap what's in the table.
This is very dangerous.
The prob
