Re: [virtio-dev] Re: [PATCH v5] virtio-pmem: PMEM device spec

[Cornelia Huck <cohuck@redhat.com>]

On Wed, Oct 06 2021, Pankaj Gupta <pankaj.gupta.linux@gmail.com> wrote:

>> > +\subsubsection{ Workload specific mapping}\label{sec:Device Types / PMEM Device / Possible Security Implications / Countermeasures / Workload}
>> > +For SHARED mappings, for the workload is a single application inside
>> > +the driver and there is no risk in sharing data. Device sharing
>>
>> Sorry for noticing this only now, but I have trouble parsing this
>> sentence. Does it mean that you can use SHARED mapping if the workload
>> is a single application?
>
> yes and if risk in sharing data is very less or acceptable.
>
>>
>> > +same backing region with SHARED mapping can be used as a valid configuration.

Hm... maybe rephrase this paragraph as:

"When using SHARED mappings with a workload that is a single application
inside the driver where the risk in sharing data is very low or
nonexisting, the device sharing the same backing region with a SHARED
mapping can be used as a valid configuration."

(I hope I caught the intention correctly!)