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[Qemu-devel] [PATCH] kvm: Don't walk memory_size == 0 slots in kvm_clien
From: |
Alex Williamson |
Subject: |
[Qemu-devel] [PATCH] kvm: Don't walk memory_size == 0 slots in kvm_client_migration_log |
Date: |
Wed, 14 Jul 2010 13:36:49 -0600 |
User-agent: |
StGIT/0.14.3 |
If we've unregistered a memory area, we should avoid calling
qemu_get_ram_ptr() on the left over phys_offset cruft in the
slot array. Now that we support removing ramblocks, the
phys_offset ram_addr_t can go away and cause a lookup fault
and abort.
Signed-off-by: Alex Williamson <address@hidden>
---
kvm-all.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index fec6d05..2922292 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -282,6 +282,9 @@ static int kvm_set_migration_log(int enable)
for (i = 0; i < ARRAY_SIZE(s->slots); i++) {
mem = &s->slots[i];
+ if (!mem->memory_size) {
+ continue;
+ }
if (!!(mem->flags & KVM_MEM_LOG_DIRTY_PAGES) == enable) {
continue;
}
- [Qemu-devel] [PATCH] kvm: Don't walk memory_size == 0 slots in kvm_client_migration_log,
Alex Williamson <=