From 3ce10901ca8da9142dcdcde198fda1a4c290934c Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 2 Jul 2013 13:40:48 +0200 Subject: memory: introduce memory_region_present This new API will avoid having too many memory_region_ref/unref in paths that currently use memory_region_find. Signed-off-by: Paolo Bonzini --- include/exec/memory.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include/exec') diff --git a/include/exec/memory.h b/include/exec/memory.h index d2466a7a97..c8d0bf445d 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -836,6 +836,18 @@ void memory_region_set_address(MemoryRegion *mr, hwaddr addr); void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset); +/** + * memory_region_present: translate an address/size relative to a + * MemoryRegion into a #MemoryRegionSection. + * + * Answer whether a #MemoryRegion within @parent covers the address + * @addr. + * + * @parent: a MemoryRegion within which @addr is a relative address + * @addr: the area within @parent to be searched + */ +bool memory_region_present(MemoryRegion *parent, hwaddr addr); + /** * memory_region_find: translate an address/size relative to a * MemoryRegion into a #MemoryRegionSection. -- cgit 1.4.1