[PATCH 09/10] xen/mmu: Be aware of p2m_[mid_|]missing when saving/restore.
From: Konrad Rzeszutek Wilk
Date: Tue Dec 21 2010 - 16:39:53 EST
We did not consider the 1-1 mapping and during restore would
not properly deal with them.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
arch/x86/xen/mmu.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index a917439..b2b8733 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -329,14 +329,13 @@ void xen_build_mfn_list_list(void)
* they're just missing, just update the stored mfn,
* since all could have changed over a migrate.
*/
- if (mid == p2m_mid_identity) {
+ if (mid == p2m_mid_identity || mid == p2m_mid_missing) {
BUG_ON(mididx);
BUG_ON(mid_mfn_p != p2m_mid_identity_mfn);
p2m_top_mfn[topidx] = virt_to_mfn(p2m_mid_identity_mfn);
pfn += (P2M_MID_PER_PAGE - 1) * P2M_PER_PAGE;
continue;
}
-
if (mid_mfn_p == p2m_mid_identity_mfn) {
/*
* XXX boot-time only! We should never find
--
1.7.1
--
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