28 lines
904 B
Diff
28 lines
904 B
Diff
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# HG changeset patch
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# User Wei Liu <wei.liu2@citrix.com>
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# Date 1330619838 0
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# Node ID 9ef985f5e6a57d2e78d27c5f0f64e6a049d8d1ff
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# Parent ce5ef8a192c1050d85580305921d2e5caf220461
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Grant table: fix a bug when grant copying a previous grant mapped page.
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In grant table version 2, when we create a non-transitive mapping from
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DomU to Dom0, we need to set active entry's trans_domain and
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trans_ref. Otherwise when we grant copy from this previous mapped
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ref, preemption count will get messed up.
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See changeset 22994:299ed79acecf for more information.
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Signed-off-by: Wei Liu <wei.liu2@citrix.com>
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--- a/xen/common/grant_table.c
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+++ b/xen/common/grant_table.c
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@@ -574,6 +574,8 @@ __gnttab_map_grant_ref(
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act->start = 0;
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act->length = PAGE_SIZE;
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act->is_sub_page = 0;
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+ act->trans_dom = op->dom;
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+ act->trans_gref = op->ref;
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}
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}
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