34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
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changeset: 23592:1e44e75d889c
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user: Olaf Hering <olaf@aepfle.de>
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date: Fri Jun 10 10:47:23 2011 +0200
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files: tools/xenpaging/policy_default.c
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description:
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xenpaging: start paging in the middle of gfn range
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Set the starting gfn to somewhere in the middle of the gfn range to
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avoid paging during BIOS startup. This can speedup booting of a guest.
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Signed-off-by: Olaf Hering <olaf@aepfle.de>
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Committed-by: Ian Jackson <ian.jackson.citrix.com>
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---
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tools/xenpaging/policy_default.c | 4 ++++
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1 file changed, 4 insertions(+)
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Index: xen-4.1.2-testing/tools/xenpaging/policy_default.c
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===================================================================
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--- xen-4.1.2-testing.orig/tools/xenpaging/policy_default.c
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+++ xen-4.1.2-testing/tools/xenpaging/policy_default.c
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@@ -69,6 +69,10 @@ int policy_init(xenpaging_t *paging)
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/* Don't page out page 0 */
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set_bit(0, bitmap);
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+ /* Start in the middle to avoid paging during BIOS startup */
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+ current_gfn = max_pages / 2;
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+ current_gfn -= paging->num_pages / 2;
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+
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rc = 0;
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out:
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return rc;
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