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authorDr. David Alan Gilbert <dgilbert@redhat.com>2018-03-12 17:21:12 +0000
committerMichael S. Tsirkin <mst@redhat.com>2018-03-20 05:03:29 +0200
commit096bf4c8522fc0331fef78e46108244ab09480a0 (patch)
tree779b7a95305e128f6084da925a1e6082815d5bfb /migration/migration.h
parent905125d0e20395188a090c16d38e38694fc43fc4 (diff)
downloadqemu-096bf4c8522fc0331fef78e46108244ab09480a0.tar.gz
vhost+postcopy: Helper to send requests to source for shared pages
Provide a helper to be used by shared waker functions to request shared pages from the source. The last_rb pointer is moved into the incoming state since this helper can update it as well as the main fault thread function. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'migration/migration.h')
-rw-r--r--migration/migration.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h
index d02a759331..83dc36b57a 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -49,6 +49,8 @@ struct MigrationIncomingState {
int userfault_event_fd;
QEMUFile *to_src_file;
QemuMutex rp_mutex; /* We send replies from multiple threads */
+ /* RAMBlock of last request sent to source */
+ RAMBlock *last_rb;
void *postcopy_tmp_page;
void *postcopy_tmp_zero_page;
/* PostCopyFD's for external userfaultfds & handlers of shared memory */