From dfde4e6e1a868f60033ece0590b1f75e6c57fa16 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Mon, 6 May 2013 10:46:11 +0200 Subject: 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 --- kvm-all.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kvm-all.c') diff --git a/kvm-all.c b/kvm-all.c index c757dd262e..66a86c2a56 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, -- cgit v1.2.1