On 11/16/2017 03:19 PM, Julien Grall wrote: > Hi George, > > On 13/11/17 15:41, George Dunlap wrote: >> Superpage support and PVHVM. >> >> Signed-off-by: George Dunlap <george.dun...@citrix.com> >> --- >> CC: Ian Jackson <ian.jack...@citrix.com> >> CC: Wei Liu <wei.l...@citrix.com> >> CC: Andrew Cooper <andrew.coop...@citrix.com> >> CC: Jan Beulich <jbeul...@suse.com> >> CC: Stefano Stabellini <sstabell...@kernel.org> >> CC: Konrad Wilk <konrad.w...@oracle.com> >> CC: Tim Deegan <t...@xen.org> >> CC: Julien Grall <julien.gr...@arm.com> >> --- >> SUPPORT.md | 21 +++++++++++++++++++++ >> 1 file changed, 21 insertions(+) >> >> diff --git a/SUPPORT.md b/SUPPORT.md >> index c884fac7f5..a8c56d13dd 100644 >> --- a/SUPPORT.md >> +++ b/SUPPORT.md >> @@ -195,6 +195,27 @@ on embedded platforms. >> Enables NUMA aware scheduling in Xen >> +## Scalability >> + >> +### 1GB/2MB super page support >> + >> + Status, x86 HVM/PVH: : Supported >> + Status, ARM: Supported >> + >> +NB that this refers to the ability of guests >> +to have higher-level page table entries point directly to memory, >> +improving TLB performance. >> +This is independent of the ARM "page granularity" feature (see below). > > I am not entirely sure about this paragraph for Arm. I understood this > section as support for stage-2 page-table (aka EPT on x86) but the > paragraph lead me to believe to it is for guest.
Hmm, yes likely there was some confusion when this was listed. We probably should make separate entries for HAP / stage 2 superpage support and guest PT superpage support. -George _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
