Re: [Xen-devel] [PATCH v11 0/3] xen: better grant v2 support

2017-09-28 Thread Juergen Gross
On 28/09/17 21:02, Andrew Cooper wrote: > On 28/09/17 11:02, Juergen Gross wrote: >> Currently Linux has no support for grant v2 as this would reduce the >> maximum number of active grants by a factor of 2 compared to v1, >> because the number of possible grants are limited by the allowed number >>

Re: [Xen-devel] [PATCH v11 0/3] xen: better grant v2 support

2017-09-28 Thread Andrew Cooper
On 28/09/17 11:02, Juergen Gross wrote: > Currently Linux has no support for grant v2 as this would reduce the > maximum number of active grants by a factor of 2 compared to v1, > because the number of possible grants are limited by the allowed number > of grant frames and grant entries of v2 need

[Xen-devel] [PATCH v11 0/3] xen: better grant v2 support

2017-09-28 Thread Juergen Gross
Currently Linux has no support for grant v2 as this would reduce the maximum number of active grants by a factor of 2 compared to v1, because the number of possible grants are limited by the allowed number of grant frames and grant entries of v2 need twice as much bytes as those of v1. Unfortunate