Re: [Xen-devel] [PATCH RFC 2/4] xen: grant_table: implement grant_table_soft_reset()

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 04/06/15 15:11, Tim Deegan wrote:
> 
> There has been talk before of an operation along the lines of "revoke
> this grant entry and wait for all users to release it" but that would
> only help with backends that are guaranteed to release grants in a
> reasonable time.

Are you talking about my idea? This would be immediate because the grant
mapper would provide a local page to atomically switch the foreign
mapping to when the grant is revoked.

But, this isn't something that would be generally applicable to all grants.

David

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel