1fbeff72c2
If "detach" is provided, one thread is created to do the dump work, while main thread will return immediately. For each GuestPhysBlock, adding one more field "mr" to points to MemoryRegion that it belongs, also ref the mr before use. Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-Id: <1455772616-8668-8-git-send-email-peterx@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
87 lines
2.5 KiB
C
87 lines
2.5 KiB
C
/*
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* QEMU memory mapping
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*
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* Copyright Fujitsu, Corp. 2011, 2012
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*
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* Authors:
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* Wen Congyang <wency@cn.fujitsu.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef MEMORY_MAPPING_H
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#define MEMORY_MAPPING_H
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#include "qemu/queue.h"
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#include "qemu/typedefs.h"
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#include "exec/memory.h"
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typedef struct GuestPhysBlock {
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/* visible to guest, reflects PCI hole, etc */
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hwaddr target_start;
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/* implies size */
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hwaddr target_end;
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/* points into host memory */
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uint8_t *host_addr;
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/* points to the MemoryRegion that this block belongs to */
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MemoryRegion *mr;
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QTAILQ_ENTRY(GuestPhysBlock) next;
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} GuestPhysBlock;
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/* point-in-time snapshot of guest-visible physical mappings */
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typedef struct GuestPhysBlockList {
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unsigned num;
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QTAILQ_HEAD(GuestPhysBlockHead, GuestPhysBlock) head;
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} GuestPhysBlockList;
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/* The physical and virtual address in the memory mapping are contiguous. */
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typedef struct MemoryMapping {
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hwaddr phys_addr;
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target_ulong virt_addr;
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ram_addr_t length;
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QTAILQ_ENTRY(MemoryMapping) next;
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} MemoryMapping;
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struct MemoryMappingList {
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unsigned int num;
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MemoryMapping *last_mapping;
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QTAILQ_HEAD(, MemoryMapping) head;
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};
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/*
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* add or merge the memory region [phys_addr, phys_addr + length) into the
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* memory mapping's list. The region's virtual address starts with virt_addr,
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* and is contiguous. The list is sorted by phys_addr.
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*/
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void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
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hwaddr phys_addr,
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hwaddr virt_addr,
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ram_addr_t length);
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void memory_mapping_list_free(MemoryMappingList *list);
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void memory_mapping_list_init(MemoryMappingList *list);
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void guest_phys_blocks_free(GuestPhysBlockList *list);
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void guest_phys_blocks_init(GuestPhysBlockList *list);
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void guest_phys_blocks_append(GuestPhysBlockList *list);
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void qemu_get_guest_memory_mapping(MemoryMappingList *list,
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const GuestPhysBlockList *guest_phys_blocks,
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Error **errp);
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/* get guest's memory mapping without do paging(virtual address is 0). */
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void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list,
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const GuestPhysBlockList *guest_phys_blocks);
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void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
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int64_t length);
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#endif
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