Messages in this thread | | | Date | Mon, 01 Dec 2014 13:54:11 +0100 | From | Juergen Gross <> | Subject | Re: [PATCH V4 00/10] xen: Switch to virtual mapped linear p2m list |
| |
On 12/01/2014 12:31 PM, David Vrabel wrote: > On 28/11/14 10:53, Juergen Gross wrote: >> Paravirtualized kernels running on Xen use a three level tree for >> translation of guest specific physical addresses to machine global >> addresses. This p2m tree is used for construction of page table >> entries, so the p2m tree walk is performance critical. >> >> By using a linear virtual mapped p2m list accesses to p2m elements >> can be sped up while even simplifying code. To achieve this goal >> some p2m related initializations have to be performed later in the >> boot process, as the final p2m list can be set up only after basic >> memory management functions are available. > > What are the results of the testing I asked for?
You asked for those replying to the patch introducing the linear mapping. So I added the description of the tested scenarios in the patch description of that patch.
> If Konrad or Boris are happy with this series I think it can go into 3.19.
Great, thanks!
Juergen
| |