[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] xenpaging: start paging in the middle of gfn range
# HG changeset patch # User Olaf Hering <olaf@xxxxxxxxx> # Date 1307695643 -7200 # Node ID 1e44e75d889c736c602c4d7a62a7b6c259e3abe5 # Parent 4aaa90c1db4250964f7982fa7c59bf9518988e91 xenpaging: start paging in the middle of gfn range Set the starting gfn to somewhere in the middle of the gfn range to avoid paging during BIOS startup. This can speedup booting of a guest. Signed-off-by: Olaf Hering <olaf@xxxxxxxxx> Committed-by: Ian Jackson <ian.jackson.citrix.com> --- diff -r 4aaa90c1db42 -r 1e44e75d889c tools/xenpaging/policy_default.c --- a/tools/xenpaging/policy_default.c Fri Jun 10 10:47:22 2011 +0200 +++ b/tools/xenpaging/policy_default.c Fri Jun 10 10:47:23 2011 +0200 @@ -69,6 +69,10 @@ /* Don't page out page 0 */ set_bit(0, bitmap); + /* Start in the middle to avoid paging during BIOS startup */ + current_gfn = max_pages / 2; + current_gfn -= paging->num_pages / 2; + rc = 0; out: return rc; _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-changelog
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