unicorn/qemu/include/exec/memory-internal.h
Lioncash 1591f208c0
memory: Move AddressSpaceDispatch from AddressSpace to FlatView
As we are going to share FlatView's between AddressSpace's,
and AddressSpaceDispatch is a structure to perform quick lookup
in FlatView, this moves ASD to FlatView.

After previosly open coded ASD rendering, we can also remove
as->next_dispatch as the new FlatView pointer is stored
on a stack and set to an AS atomically.

flatview_destroy() is executed under RCU instead of
address_space_dispatch_free() now.

This makes mem_begin/mem_commit to work with ASD and mem_add with FV
as later on mem_add will be taking FV as an argument anyway.

This should cause no behavioural change.

Backports commit 66a6df1dc6d5b28cc3e65db0d71683fbdddc6b62 from qemu
2018-03-11 20:40:24 -04:00

40 lines
1.1 KiB
C

/*
* Declarations for obsolete exec.c functions
*
* Copyright 2011 Red Hat, Inc. and/or its affiliates
*
* Authors:
* Avi Kivity <avi@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*
*/
/*
* This header is for use by exec.c and memory.c ONLY. Do not include it.
* The functions declared here will be removed soon.
*/
#ifndef MEMORY_INTERNAL_H
#define MEMORY_INTERNAL_H
#ifndef CONFIG_USER_ONLY
typedef struct AddressSpaceDispatch AddressSpaceDispatch;
extern const MemoryRegionOps unassigned_mem_ops;
bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr,
unsigned size, bool is_write);
void mem_add(AddressSpace *as, FlatView *fv, MemoryRegionSection *section);
AddressSpaceDispatch *mem_begin(AddressSpace *as);
void mem_commit(AddressSpaceDispatch *d);
AddressSpaceDispatch *address_space_to_dispatch(AddressSpace *as);
AddressSpaceDispatch *flatview_to_dispatch(FlatView *fv);
void address_space_dispatch_free(AddressSpaceDispatch *d);
#endif
#endif