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authorPaolo Bonzini <pbonzini@redhat.com>2013-05-06 10:46:11 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2013-07-04 17:42:45 +0200
commitdfde4e6e1a868f60033ece0590b1f75e6c57fa16 (patch)
treea84c1cddd96c6dc60fd7a5d35949b4fcaf9a32ed /kvm-all.c
parent3ce10901ca8da9142dcdcde198fda1a4c290934c (diff)
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memory: add ref/unref calls
Add ref/unref calls at the following places: - places where memory regions are stashed by a listener and used outside the BQL (including in Xen or KVM). - memory_region_find callsites - creation of aliases and containers (only the aliased/contained region gets a reference to avoid loops) - around calls to del_subregion/add_subregion, where the region could disappear after the first call Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'kvm-all.c')
-rw-r--r--kvm-all.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kvm-all.c b/kvm-all.c
index c757dd2..66a86c2 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -789,6 +789,7 @@ static void kvm_set_phys_mem(MemoryRegionSection *section, bool add)
static void kvm_region_add(MemoryListener *listener,
MemoryRegionSection *section)
{
+ memory_region_ref(section->mr);
kvm_set_phys_mem(section, true);
}
@@ -796,6 +797,7 @@ static void kvm_region_del(MemoryListener *listener,
MemoryRegionSection *section)
{
kvm_set_phys_mem(section, false);
+ memory_region_unref(section->mr);
}
static void kvm_log_sync(MemoryListener *listener,