xen/xen - xen

	Commit message (Collapse)	Author	Age	Files	Lines
*	Update memshr API and tools	Andres Lagar-Cavilla	2012-01-26	1	-5/+7
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	This patch is the folded version of API updates, along with the associated tool changes to ensure that the build is always consistent. API updates: - The source domain in the sharing calls is no longer assumed to be dom0. - Previously, the mem sharing code would return an opaque handle to index shared pages (and nominees) in its global hash table. By removing the hash table, the handle becomes a version, to avoid sharing a stale version of a page. Thus, libxc wrappers and tools need to be updated to recall the share functions with the information needed to fetch the page (which they readily have). Tool updates: The only (in-tree, that we know of) consumer of the mem sharing API is the memshr tool. This is updated to use the new API. Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org> Signed-off-by: Adin Scannell <adin@scannell.ca> Acked-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Tim Deegan <tim@xen.org>
*	Make Citrix copyright strinsg consistent.	Keir Fraser	2009-12-18	1	-1/+1
\| \| \| \|	Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
*	Generic bi-directional map, and related initialisation functions. At the moment	Keir Fraser	2009-12-17	1	-0/+113
	a single map is used to store mappings between sharing handles and disk blocks. This is used to share pages which store data read of the same blocks on (virtual) disk. Note that the map is stored in a shared memory region, as it needs to be accessed by multiple tapdisk processes. This complicates memory allocation (malloc cannot be used), prevents poniters to be stored directly (as the shared memory region might and is mapped at different base address) and finally pthread locks need to be multi-process aware. Signed-off-by: Grzegorz Milos <Grzegorz.Milos@citrix.com>