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postcopy: Plumb pagesize down into place helpers

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Now we deal with normal size pages and huge pages we need
to tell the place handlers the size we're dealing with
and make sure the temporary page is large enough.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20170224182844.32452-8-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Dr. David Alan Gilbert 2017-02-24 18:28:35 +00:00
parent 67f11b5c23
commit df9ff5e1e3
3 changed files with 40 additions and 28 deletions
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6
include/migration/postcopy-ram.h
View file

@ -74,13 +74,15 @@ void postcopy_discard_send_finish(MigrationState *ms,
* to use other postcopy_ routines to allocate.
* returns 0 on success
*/
int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from);
int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from,
size_t pagesize);
/*
* Place a zero page at (host) atomically
* returns 0 on success
*/
int postcopy_place_page_zero(MigrationIncomingState *mis, void *host);
int postcopy_place_page_zero(MigrationIncomingState *mis, void *host,
size_t pagesize);
/*
* Allocate a page of memory that can be mapped at a later point in time