diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/include/migration/migration.h | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/include/migration/migration.h')
-rw-r--r-- | qemu/include/migration/migration.h | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/qemu/include/migration/migration.h b/qemu/include/migration/migration.h deleted file mode 100644 index ac2c12c2a..000000000 --- a/qemu/include/migration/migration.h +++ /dev/null @@ -1,332 +0,0 @@ -/* - * QEMU live migration - * - * Copyright IBM, Corp. 2008 - * - * Authors: - * Anthony Liguori <aliguori@us.ibm.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. See - * the COPYING file in the top-level directory. - * - */ - -#ifndef QEMU_MIGRATION_H -#define QEMU_MIGRATION_H - -#include "qapi/qmp/qdict.h" -#include "qemu-common.h" -#include "qemu/thread.h" -#include "qemu/notify.h" -#include "migration/vmstate.h" -#include "qapi-types.h" -#include "exec/cpu-common.h" - -#define QEMU_VM_FILE_MAGIC 0x5145564d -#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002 -#define QEMU_VM_FILE_VERSION 0x00000003 - -#define QEMU_VM_EOF 0x00 -#define QEMU_VM_SECTION_START 0x01 -#define QEMU_VM_SECTION_PART 0x02 -#define QEMU_VM_SECTION_END 0x03 -#define QEMU_VM_SECTION_FULL 0x04 -#define QEMU_VM_SUBSECTION 0x05 -#define QEMU_VM_VMDESCRIPTION 0x06 -#define QEMU_VM_CONFIGURATION 0x07 -#define QEMU_VM_COMMAND 0x08 -#define QEMU_VM_SECTION_FOOTER 0x7e - -struct MigrationParams { - bool blk; - bool shared; -}; - -/* Messages sent on the return path from destination to source */ -enum mig_rp_message_type { - MIG_RP_MSG_INVALID = 0, /* Must be 0 */ - MIG_RP_MSG_SHUT, /* sibling will not send any more RP messages */ - MIG_RP_MSG_PONG, /* Response to a PING; data (seq: be32 ) */ - - MIG_RP_MSG_REQ_PAGES_ID, /* data (start: be64, len: be32, id: string) */ - MIG_RP_MSG_REQ_PAGES, /* data (start: be64, len: be32) */ - - MIG_RP_MSG_MAX -}; - -typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head; - -/* The current postcopy state is read/set by postcopy_state_get/set - * which update it atomically. - * The state is updated as postcopy messages are received, and - * in general only one thread should be writing to the state at any one - * time, initially the main thread and then the listen thread; - * Corner cases are where either thread finishes early and/or errors. - * The state is checked as messages are received to ensure that - * the source is sending us messages in the correct order. - * The state is also used by the RAM reception code to know if it - * has to place pages atomically, and the cleanup code at the end of - * the main thread to know if it has to delay cleanup until the end - * of postcopy. - */ -typedef enum { - POSTCOPY_INCOMING_NONE = 0, /* Initial state - no postcopy */ - POSTCOPY_INCOMING_ADVISE, - POSTCOPY_INCOMING_DISCARD, - POSTCOPY_INCOMING_LISTENING, - POSTCOPY_INCOMING_RUNNING, - POSTCOPY_INCOMING_END -} PostcopyState; - -/* State for the incoming migration */ -struct MigrationIncomingState { - QEMUFile *from_src_file; - - /* - * Free at the start of the main state load, set as the main thread finishes - * loading state. - */ - QemuEvent main_thread_load_event; - - bool have_fault_thread; - QemuThread fault_thread; - QemuSemaphore fault_thread_sem; - - bool have_listen_thread; - QemuThread listen_thread; - QemuSemaphore listen_thread_sem; - - /* For the kernel to send us notifications */ - int userfault_fd; - /* To tell the fault_thread to quit */ - int userfault_quit_fd; - QEMUFile *to_src_file; - QemuMutex rp_mutex; /* We send replies from multiple threads */ - void *postcopy_tmp_page; - - QEMUBH *bh; - - int state; - /* See savevm.c */ - LoadStateEntry_Head loadvm_handlers; -}; - -MigrationIncomingState *migration_incoming_get_current(void); -MigrationIncomingState *migration_incoming_state_new(QEMUFile *f); -void migration_incoming_state_destroy(void); - -/* - * An outstanding page request, on the source, having been received - * and queued - */ -struct MigrationSrcPageRequest { - RAMBlock *rb; - hwaddr offset; - hwaddr len; - - QSIMPLEQ_ENTRY(MigrationSrcPageRequest) next_req; -}; - -struct MigrationState -{ - int64_t bandwidth_limit; - size_t bytes_xfer; - size_t xfer_limit; - QemuThread thread; - QEMUBH *cleanup_bh; - QEMUFile *to_dst_file; - int parameters[MIGRATION_PARAMETER__MAX]; - - int state; - MigrationParams params; - - /* State related to return path */ - struct { - QEMUFile *from_dst_file; - QemuThread rp_thread; - bool error; - } rp_state; - - double mbps; - int64_t total_time; - int64_t downtime; - int64_t expected_downtime; - int64_t dirty_pages_rate; - int64_t dirty_bytes_rate; - bool enabled_capabilities[MIGRATION_CAPABILITY__MAX]; - int64_t xbzrle_cache_size; - int64_t setup_time; - int64_t dirty_sync_count; - - /* Flag set once the migration has been asked to enter postcopy */ - bool start_postcopy; - /* Flag set after postcopy has sent the device state */ - bool postcopy_after_devices; - - /* Flag set once the migration thread is running (and needs joining) */ - bool migration_thread_running; - - /* Queue of outstanding page requests from the destination */ - QemuMutex src_page_req_mutex; - QSIMPLEQ_HEAD(src_page_requests, MigrationSrcPageRequest) src_page_requests; - /* The RAMBlock used in the last src_page_request */ - RAMBlock *last_req_rb; -}; - -void migrate_set_state(int *state, int old_state, int new_state); - -void process_incoming_migration(QEMUFile *f); - -void qemu_start_incoming_migration(const char *uri, Error **errp); - -uint64_t migrate_max_downtime(void); - -void exec_start_incoming_migration(const char *host_port, Error **errp); - -void exec_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp); - -void tcp_start_incoming_migration(const char *host_port, Error **errp); - -void tcp_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp); - -void unix_start_incoming_migration(const char *path, Error **errp); - -void unix_start_outgoing_migration(MigrationState *s, const char *path, Error **errp); - -void fd_start_incoming_migration(const char *path, Error **errp); - -void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp); - -void rdma_start_outgoing_migration(void *opaque, const char *host_port, Error **errp); - -void rdma_start_incoming_migration(const char *host_port, Error **errp); - -void migrate_fd_error(MigrationState *s); - -void migrate_fd_connect(MigrationState *s); - -int migrate_fd_close(MigrationState *s); - -void add_migration_state_change_notifier(Notifier *notify); -void remove_migration_state_change_notifier(Notifier *notify); -MigrationState *migrate_init(const MigrationParams *params); -bool migration_in_setup(MigrationState *); -bool migration_has_finished(MigrationState *); -bool migration_has_failed(MigrationState *); -/* True if outgoing migration has entered postcopy phase */ -bool migration_in_postcopy(MigrationState *); -/* ...and after the device transmission */ -bool migration_in_postcopy_after_devices(MigrationState *); -MigrationState *migrate_get_current(void); - -void migrate_compress_threads_create(void); -void migrate_compress_threads_join(void); -void migrate_decompress_threads_create(void); -void migrate_decompress_threads_join(void); -uint64_t ram_bytes_remaining(void); -uint64_t ram_bytes_transferred(void); -uint64_t ram_bytes_total(void); -void free_xbzrle_decoded_buf(void); - -void acct_update_position(QEMUFile *f, size_t size, bool zero); - -uint64_t dup_mig_bytes_transferred(void); -uint64_t dup_mig_pages_transferred(void); -uint64_t skipped_mig_bytes_transferred(void); -uint64_t skipped_mig_pages_transferred(void); -uint64_t norm_mig_bytes_transferred(void); -uint64_t norm_mig_pages_transferred(void); -uint64_t xbzrle_mig_bytes_transferred(void); -uint64_t xbzrle_mig_pages_transferred(void); -uint64_t xbzrle_mig_pages_overflow(void); -uint64_t xbzrle_mig_pages_cache_miss(void); -double xbzrle_mig_cache_miss_rate(void); - -void ram_handle_compressed(void *host, uint8_t ch, uint64_t size); -void ram_debug_dump_bitmap(unsigned long *todump, bool expected); -/* For outgoing discard bitmap */ -int ram_postcopy_send_discard_bitmap(MigrationState *ms); -/* For incoming postcopy discard */ -int ram_discard_range(MigrationIncomingState *mis, const char *block_name, - uint64_t start, size_t length); -int ram_postcopy_incoming_init(MigrationIncomingState *mis); - -/** - * @migrate_add_blocker - prevent migration from proceeding - * - * @reason - an error to be returned whenever migration is attempted - */ -void migrate_add_blocker(Error *reason); - -/** - * @migrate_del_blocker - remove a blocking error from migration - * - * @reason - the error blocking migration - */ -void migrate_del_blocker(Error *reason); - -bool migrate_postcopy_ram(void); -bool migrate_zero_blocks(void); - -bool migrate_auto_converge(void); - -int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen, - uint8_t *dst, int dlen); -int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen); - -int migrate_use_xbzrle(void); -int64_t migrate_xbzrle_cache_size(void); - -int64_t xbzrle_cache_resize(int64_t new_size); - -bool migrate_use_compression(void); -int migrate_compress_level(void); -int migrate_compress_threads(void); -int migrate_decompress_threads(void); -bool migrate_use_events(void); - -/* Sending on the return path - generic and then for each message type */ -void migrate_send_rp_message(MigrationIncomingState *mis, - enum mig_rp_message_type message_type, - uint16_t len, void *data); -void migrate_send_rp_shut(MigrationIncomingState *mis, - uint32_t value); -void migrate_send_rp_pong(MigrationIncomingState *mis, - uint32_t value); -void migrate_send_rp_req_pages(MigrationIncomingState *mis, const char* rbname, - ram_addr_t start, size_t len); - -void ram_control_before_iterate(QEMUFile *f, uint64_t flags); -void ram_control_after_iterate(QEMUFile *f, uint64_t flags); -void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data); - -/* Whenever this is found in the data stream, the flags - * will be passed to ram_control_load_hook in the incoming-migration - * side. This lets before_ram_iterate/after_ram_iterate add - * transport-specific sections to the RAM migration data. - */ -#define RAM_SAVE_FLAG_HOOK 0x80 - -#define RAM_SAVE_CONTROL_NOT_SUPP -1000 -#define RAM_SAVE_CONTROL_DELAYED -2000 - -size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset, - ram_addr_t offset, size_t size, - uint64_t *bytes_sent); - -void ram_mig_init(void); -void savevm_skip_section_footers(void); -void register_global_state(void); -void global_state_set_optional(void); -void savevm_skip_configuration(void); -int global_state_store(void); -void global_state_store_running(void); - -void flush_page_queue(MigrationState *ms); -int ram_save_queue_pages(MigrationState *ms, const char *rbname, - ram_addr_t start, ram_addr_t len); - -PostcopyState postcopy_state_get(void); -/* Set the state and return the old state */ -PostcopyState postcopy_state_set(PostcopyState new_state); -#endif |