diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/ramblock.h | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/include/exec/ramblock.h b/include/exec/ramblock.h deleted file mode 100644 index 64484cd821..0000000000 --- a/include/exec/ramblock.h +++ /dev/null @@ -1,95 +0,0 @@ -/* - * Declarations for cpu physical memory 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 QEMU_EXEC_RAMBLOCK_H -#define QEMU_EXEC_RAMBLOCK_H - -#ifndef CONFIG_USER_ONLY -#include "cpu-common.h" -#include "qemu/rcu.h" -#include "exec/ramlist.h" - -struct RAMBlock { - struct rcu_head rcu; - struct MemoryRegion *mr; - uint8_t *host; - uint8_t *colo_cache; /* For colo, VM's ram cache */ - ram_addr_t offset; - ram_addr_t used_length; - ram_addr_t max_length; - void (*resized)(const char*, uint64_t length, void *host); - uint32_t flags; - /* Protected by the BQL. */ - char idstr[256]; - /* RCU-enabled, writes protected by the ramlist lock */ - QLIST_ENTRY(RAMBlock) next; - QLIST_HEAD(, RAMBlockNotifier) ramblock_notifiers; - Error *cpr_blocker; - int fd; - uint64_t fd_offset; - int guest_memfd; - size_t page_size; - /* dirty bitmap used during migration */ - unsigned long *bmap; - - /* - * Below fields are only used by mapped-ram migration - */ - /* bitmap of pages present in the migration file */ - unsigned long *file_bmap; - /* - * offset in the file pages belonging to this ramblock are saved, - * used only during migration to a file. - */ - off_t bitmap_offset; - uint64_t pages_offset; - - /* Bitmap of already received pages. Only used on destination side. */ - unsigned long *receivedmap; - - /* - * bitmap to track already cleared dirty bitmap. When the bit is - * set, it means the corresponding memory chunk needs a log-clear. - * Set this up to non-NULL to enable the capability to postpone - * and split clearing of dirty bitmap on the remote node (e.g., - * KVM). The bitmap will be set only when doing global sync. - * - * It is only used during src side of ram migration, and it is - * protected by the global ram_state.bitmap_mutex. - * - * NOTE: this bitmap is different comparing to the other bitmaps - * in that one bit can represent multiple guest pages (which is - * decided by the `clear_bmap_shift' variable below). On - * destination side, this should always be NULL, and the variable - * `clear_bmap_shift' is meaningless. - */ - unsigned long *clear_bmap; - uint8_t clear_bmap_shift; - - /* - * RAM block length that corresponds to the used_length on the migration - * source (after RAM block sizes were synchronized). Especially, after - * starting to run the guest, used_length and postcopy_length can differ. - * Used to register/unregister uffd handlers and as the size of the received - * bitmap. Receiving any page beyond this length will bail out, as it - * could not have been valid on the source. - */ - ram_addr_t postcopy_length; -}; -#endif -#endif |