| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
RE: [Xen-devel] what happens when a PoD page is touched?
> The exception to this would be the case where you're allocating N
> pages, where N > (used_pages - total allocation).
>
> I guess try allocating fewer pages before returning them to Xen, and
> seeing if that helps at all.
I tried returning 64KB at a time (eg 16 pages) instead of 1MB but it
doesn't improve things. Xen should just repopulate every page I allocate
with the pages I just returned and things should fly along but it's not
working that way.
Just taking a step back for a sec, maybe I'm doing something else wrong.
My balloon down code allocates memory from Windows with
MmAllocatePagesForMdlEx then hands the pages to Xen with
XENMEM_decrease_reservation. Is that all I need to do? I notice that
Linux makes a call to set_phys_to_machine(INVALID_P2M_ENTRY) for each
page, even in the hvm case. Is that some function I need to mirror too
or is that just internal Linux housekeeping and not required under
Windows?
Thanks
James
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
|
|
| |
|
Home