Displaying 1 result from an estimated 1 matches for "p2m_paging_nomin".
2011 Nov 01
2
xenpaing: one way to avoid paging out the page, when the corresponding mfn is in use.
...lways map domU’s page to its own space, during the mapping procedure, situations as follow may happen,
when mfn is obtained by gfn_to_mfn(), this mfn is likely to be paged out.
first case:
grant mapping xenpaing
mfn = gfn_to_mfn();
<----------- p2m_paging_nominate()
| |
Check type ok paged out;
|
try to map
What we want is:
When the page (mfn) is accessed by gfn_to_mfn(), this page should never be paged out until the mapping action is end.
second case:
grant mapp...