Displaying 2 results from an estimated 2 matches for "remove_override".
2012 Apr 10
7
[PATCH v3 1/2] xen: enter/exit lazy_mmu_mode around m2p_override calls
This patch is a significant performance improvement for the
m2p_override: about 6% using the gntdev device.
Each m2p_add/remove_override call issues a MULTI_grant_table_op and a
__flush_tlb_single if kmap_op != NULL. Batching all the calls together
is a great performance benefit because it means issuing one hypercall
total rather than two hypercall per page.
If paravirt_lazy_mode is set PARAVIRT_LAZY_MMU, all these calls are
going...
2013 Nov 20
6
[PATCH] xen/gnttab: leave lazy MMU mode in the case of a m2p override failure
From: Matt Wilson <msw@amazon.com>
Commit f62805f1 introduced a bug where lazy MMU mode isn''t exited if a
m2p_add/remove_override call fails.
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Anthony Liguori <aliguori@amazon.com>
Cc: xen-devel...