diff options
author | Juan Quintela <quintela@redhat.com> | 2017-04-20 13:12:24 +0200 |
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committer | Juan Quintela <quintela@redhat.com> | 2017-05-04 10:40:30 +0200 |
commit | be07b0ace82b0f23bee194de9e4481c308645376 (patch) | |
tree | 214f94653990ac6d759b2bf5fd69e00f5d3addc2 /include/migration | |
parent | 6683061873095ad3f34f73bd32553c1d2c559e82 (diff) |
migration: Move postcopy-ram.h to migration/
It is internal to migration, not intended for other users.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Diffstat (limited to 'include/migration')
-rw-r--r-- | include/migration/postcopy-ram.h | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/include/migration/postcopy-ram.h b/include/migration/postcopy-ram.h deleted file mode 100644 index 4c25f03be2..0000000000 --- a/include/migration/postcopy-ram.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Postcopy migration for RAM - * - * Copyright 2013 Red Hat, Inc. and/or its affiliates - * - * Authors: - * Dave Gilbert <dgilbert@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. - * - */ -#ifndef QEMU_POSTCOPY_RAM_H -#define QEMU_POSTCOPY_RAM_H - -/* Return true if the host supports everything we need to do postcopy-ram */ -bool postcopy_ram_supported_by_host(void); - -/* - * Make all of RAM sensitive to accesses to areas that haven't yet been written - * and wire up anything necessary to deal with it. - */ -int postcopy_ram_enable_notify(MigrationIncomingState *mis); - -/* - * Initialise postcopy-ram, setting the RAM to a state where we can go into - * postcopy later; must be called prior to any precopy. - * called from ram.c's similarly named ram_postcopy_incoming_init - */ -int postcopy_ram_incoming_init(MigrationIncomingState *mis, size_t ram_pages); - -/* - * At the end of a migration where postcopy_ram_incoming_init was called. - */ -int postcopy_ram_incoming_cleanup(MigrationIncomingState *mis); - -/* - * Userfault requires us to mark RAM as NOHUGEPAGE prior to discard - * however leaving it until after precopy means that most of the precopy - * data is still THPd - */ -int postcopy_ram_prepare_discard(MigrationIncomingState *mis); - -/* - * Called at the start of each RAMBlock by the bitmap code. - * Returns a new PDS - */ -PostcopyDiscardState *postcopy_discard_send_init(MigrationState *ms, - const char *name); - -/* - * Called by the bitmap code for each chunk to discard. - * May send a discard message, may just leave it queued to - * be sent later. - * @start,@length: a range of pages in the migration bitmap in the - * RAM block passed to postcopy_discard_send_init() (length=1 is one page) - */ -void postcopy_discard_send_range(MigrationState *ms, PostcopyDiscardState *pds, - unsigned long start, unsigned long length); - -/* - * Called at the end of each RAMBlock by the bitmap code. - * Sends any outstanding discard messages, frees the PDS. - */ -void postcopy_discard_send_finish(MigrationState *ms, - PostcopyDiscardState *pds); - -/* - * Place a page (from) at (host) efficiently - * There are restrictions on how 'from' must be mapped, in general best - * to use other postcopy_ routines to allocate. - * returns 0 on success - */ -int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, - size_t pagesize); - -/* - * Place a zero page at (host) atomically - * returns 0 on success - */ -int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, - size_t pagesize); - -/* - * Allocate a page of memory that can be mapped at a later point in time - * using postcopy_place_page - * Returns: Pointer to allocated page - */ -void *postcopy_get_tmp_page(MigrationIncomingState *mis); - -#endif |