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authorFam Zheng <famz@redhat.com>2016-03-25 18:10:28 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2016-05-23 16:53:44 +0200
commitb61359781958759317ee6fd1a45b59be0b7dbbe1 (patch)
tree312778a452b2f2004e4237e36c39b2e4e7a2eef7 /memory.c
parentab0a99560857302b60053c245d1231acbd976cd4 (diff)
memory: Remove code for mr->may_overlap
The collision check does nothing and hasn't been used. Remove the variable together with related code. Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <1458900629-2334-2-git-send-email-famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'memory.c')
-rw-r--r--memory.c35
1 files changed, 0 insertions, 35 deletions
diff --git a/memory.c b/memory.c
index 9daac5ea2d..ac5236b515 100644
--- a/memory.c
+++ b/memory.c
@@ -1057,13 +1057,6 @@ static void memory_region_get_priority(Object *obj, Visitor *v,
visit_type_int32(v, name, &value, errp);
}
-static bool memory_region_get_may_overlap(Object *obj, Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
-
- return mr->may_overlap;
-}
-
static void memory_region_get_size(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@@ -1101,10 +1094,6 @@ static void memory_region_initfn(Object *obj)
memory_region_get_priority,
NULL, /* memory_region_set_priority */
NULL, NULL, &error_abort);
- object_property_add_bool(OBJECT(mr), "may-overlap",
- memory_region_get_may_overlap,
- NULL, /* memory_region_set_may_overlap */
- &error_abort);
object_property_add(OBJECT(mr), "size", "uint64",
memory_region_get_size,
NULL, /* memory_region_set_size, */
@@ -1864,7 +1853,6 @@ void memory_region_del_eventfd(MemoryRegion *mr,
static void memory_region_update_container_subregions(MemoryRegion *subregion)
{
- hwaddr offset = subregion->addr;
MemoryRegion *mr = subregion->container;
MemoryRegion *other;
@@ -1872,27 +1860,6 @@ static void memory_region_update_container_subregions(MemoryRegion *subregion)
memory_region_ref(subregion);
QTAILQ_FOREACH(other, &mr->subregions, subregions_link) {
- if (subregion->may_overlap || other->may_overlap) {
- continue;
- }
- if (int128_ge(int128_make64(offset),
- int128_add(int128_make64(other->addr), other->size))
- || int128_le(int128_add(int128_make64(offset), subregion->size),
- int128_make64(other->addr))) {
- continue;
- }
-#if 0
- printf("warning: subregion collision %llx/%llx (%s) "
- "vs %llx/%llx (%s)\n",
- (unsigned long long)offset,
- (unsigned long long)int128_get64(subregion->size),
- subregion->name,
- (unsigned long long)other->addr,
- (unsigned long long)int128_get64(other->size),
- other->name);
-#endif
- }
- QTAILQ_FOREACH(other, &mr->subregions, subregions_link) {
if (subregion->priority >= other->priority) {
QTAILQ_INSERT_BEFORE(other, subregion, subregions_link);
goto done;
@@ -1918,7 +1885,6 @@ void memory_region_add_subregion(MemoryRegion *mr,
hwaddr offset,
MemoryRegion *subregion)
{
- subregion->may_overlap = false;
subregion->priority = 0;
memory_region_add_subregion_common(mr, offset, subregion);
}
@@ -1928,7 +1894,6 @@ void memory_region_add_subregion_overlap(MemoryRegion *mr,
MemoryRegion *subregion,
int priority)
{
- subregion->may_overlap = true;
subregion->priority = priority;
memory_region_add_subregion_common(mr, offset, subregion);
}