Displaying 1 result from an estimated 1 matches for "flush_grant_ref".
2006 Apr 21
4
[Xen-ia64-devel] flush_tlb_mask and grant_table on ia64
Hi,
on IA64 flushing the whole TLB is very expensive: this is a cpu tlb flush and
clearing 16MB of memory (virtual tlb).
However, flushing an address range is rather cheap. Flushing an address range
on every processors is also cheap (no IPI).
Unfortunatly Xen common code flushes the whole TLB after unmapping grant
reference.
Currently, this is not done on IA64 because domain_dirty_cpumask