memory: make section size a 128-bit integer

So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes

An IOMMU however cannot be eliminated by the memory core, and may have
an artificial size, hence we may need 65 bits to represent its size.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/xen-all.c b/xen-all.c
index 1a1d7bbdcc..9b5735048d 100644
--- a/xen-all.c
+++ b/xen-all.c
@@ -418,7 +418,7 @@ static void xen_set_memory(struct MemoryListener *listener,
 {
     XenIOState *state = container_of(listener, XenIOState, memory_listener);
     hwaddr start_addr = section->offset_within_address_space;
-    ram_addr_t size = section->size;
+    ram_addr_t size = int128_get64(section->size);
     bool log_dirty = memory_region_is_logging(section->mr);
     hvmmem_type_t mem_type;
 
@@ -522,7 +522,7 @@ static void xen_log_start(MemoryListener *listener,
     XenIOState *state = container_of(listener, XenIOState, memory_listener);
 
     xen_sync_dirty_bitmap(state, section->offset_within_address_space,
-                          section->size);
+                          int128_get64(section->size));
 }
 
 static void xen_log_stop(MemoryListener *listener, MemoryRegionSection *section)
@@ -539,7 +539,7 @@ static void xen_log_sync(MemoryListener *listener, MemoryRegionSection *section)
     XenIOState *state = container_of(listener, XenIOState, memory_listener);
 
     xen_sync_dirty_bitmap(state, section->offset_within_address_space,
-                          section->size);
+                          int128_get64(section->size));
 }
 
 static void xen_log_global_start(MemoryListener *listener)