diff options
| author | Michael R. Hines <mrhines@us.ibm.com> | 2013-06-25 21:35:35 -0400 |
|---|---|---|
| committer | Juan Quintela <quintela@redhat.com> | 2013-06-27 02:38:36 +0200 |
| commit | 43487c678d6e4e7182bfa70d2bc75422578782aa (patch) | |
| tree | 3472507c7cfacdd6c61a3b0725b28a474993d97e /include/migration/migration.h | |
| parent | bd2fa51fcdba3408f308df1b08fae04053ecdee5 (diff) | |
rdma: new QEMUFileOps hooks
These are the prototypes and implementation of new hooks that
RDMA takes advantage of to perform dynamic page registration.
An optional hook is also introduced for a custom function
to be able to override the default save_page function.
Also included are the prototypes and accessor methods used by
arch_init.c which invoke funtions inside savevm.c to call out
to the hooks that may or may not have been overridden
inside of QEMUFileOps.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Chegu Vinod <chegu_vinod@hp.com>
Tested-by: Chegu Vinod <chegu_vinod@hp.com>
Tested-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Michael R. Hines <mrhines@us.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Diffstat (limited to 'include/migration/migration.h')
| -rw-r--r-- | include/migration/migration.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/migration/migration.h b/include/migration/migration.h index 535e844880..3ddd64ffcb 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -21,6 +21,7 @@ #include "qapi/error.h" #include "migration/vmstate.h" #include "qapi-types.h" +#include "exec/cpu-common.h" struct MigrationParams { bool blk; @@ -130,4 +131,23 @@ int migrate_use_xbzrle(void); int64_t migrate_xbzrle_cache_size(void); int64_t xbzrle_cache_resize(int64_t new_size); + +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); + +/* 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, + int *bytes_sent); + #endif |