diff options
| author | David Hildenbrand <david@redhat.com> | 2021-04-13 11:55:20 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2021-07-08 15:54:45 -0400 |
| commit | 228438384e64407949671e0b8b07258afb206ac2 (patch) | |
| tree | 37ff1e56f59154dbe3e97998beb83d3a2337cd69 /include | |
| parent | 8947d7fc4e77d36fae44411b1b63c513863f89a7 (diff) | |
memory: Helpers to copy/free a MemoryRegionSection
In case one wants to create a permanent copy of a MemoryRegionSections,
one needs access to flatview_ref()/flatview_unref(). Instead of exposing
these, let's just add helpers to copy/free a MemoryRegionSection and
properly adjust references.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Auger Eric <eric.auger@redhat.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: teawater <teawaterz@linux.alibaba.com>
Cc: Marek Kedzierski <mkedzier@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210413095531.25603-3-david@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/exec/memory.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index 6574e46b93..27a8833173 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -1067,6 +1067,26 @@ static inline bool MemoryRegionSection_eq(MemoryRegionSection *a, } /** + * memory_region_section_new_copy: Copy a memory region section + * + * Allocate memory for a new copy, copy the memory region section, and + * properly take a reference on all relevant members. + * + * @s: the #MemoryRegionSection to copy + */ +MemoryRegionSection *memory_region_section_new_copy(MemoryRegionSection *s); + +/** + * memory_region_section_new_copy: Free a copied memory region section + * + * Free a copy of a memory section created via memory_region_section_new_copy(). + * properly dropping references on all relevant members. + * + * @s: the #MemoryRegionSection to copy + */ +void memory_region_section_free_copy(MemoryRegionSection *s); + +/** * memory_region_init: Initialize a memory region * * The region typically acts as a container for other memory regions. Use |