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ram: Add QEMUFile to RAMState 

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Juan Quintela 2017-03-15 09:16:57 +01:00
parent 96506894a3
commit 204b88b869
1 changed files with 10 additions and 7 deletions
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17
migration/ram.c
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@ -165,6 +165,8 @@ struct RAMSrcPageRequest {
/* State of RAM for migration */
struct RAMState {
/* QEMUFile used for this migration */
QEMUFile *f;
/* Last block that we have visited searching for dirty pages */
RAMBlock *last_seen_block;
/* Last block from where we have sent data */
@ -525,14 +527,13 @@ static void xbzrle_cache_zero_page(RAMState *rs, ram_addr_t current_addr)
* -1 means that xbzrle would be longer than normal
*
* @rs: current RAM state
* @f: QEMUFile where to send the data
* @current_data: pointer to the address of the page contents
* @current_addr: addr of the page
* @block: block that contains the page we want to send
* @offset: offset inside the block for the page
* @last_stage: if we are at the completion stage
*/
static int save_xbzrle_page(RAMState *rs, QEMUFile *f, uint8_t **current_data,
static int save_xbzrle_page(RAMState *rs, uint8_t **current_data,
ram_addr_t current_addr, RAMBlock *block,
ram_addr_t offset, bool last_stage)
{
@ -583,10 +584,11 @@ static int save_xbzrle_page(RAMState *rs, QEMUFile *f, uint8_t **current_data,
}
/* Send XBZRLE based compressed page */
bytes_xbzrle = save_page_header(f, block, offset | RAM_SAVE_FLAG_XBZRLE);
qemu_put_byte(f, ENCODING_FLAG_XBZRLE);
qemu_put_be16(f, encoded_len);
qemu_put_buffer(f, XBZRLE.encoded_buf, encoded_len);
bytes_xbzrle = save_page_header(rs->f, block,
offset | RAM_SAVE_FLAG_XBZRLE);
qemu_put_byte(rs->f, ENCODING_FLAG_XBZRLE);
qemu_put_be16(rs->f, encoded_len);
qemu_put_buffer(rs->f, XBZRLE.encoded_buf, encoded_len);
bytes_xbzrle += encoded_len + 1 + 2;
rs->xbzrle_pages++;
rs->xbzrle_bytes += bytes_xbzrle;
@ -850,7 +852,7 @@ static int ram_save_page(RAMState *rs, MigrationState *ms, QEMUFile *f,
ram_release_pages(ms, block->idstr, pss->offset, pages);
} else if (!rs->ram_bulk_stage &&
!migration_in_postcopy(ms) && migrate_use_xbzrle()) {
pages = save_xbzrle_page(rs, f, &p, current_addr, block,
pages = save_xbzrle_page(rs, &p, current_addr, block,
offset, last_stage);
if (!last_stage) {
/* Can't send this cached data async, since the cache page
@ -2090,6 +2092,7 @@ static int ram_save_setup(QEMUFile *f, void *opaque)
return -1;
}
}
rs->f = f;
rcu_read_lock();