From 46fd17054548b15b3b8a5991492f5f0dc37957d4 Mon Sep 17 00:00:00 2001 From: Gonglei Date: Thu, 22 Dec 2016 11:12:38 +0800 Subject: cryptodev: introduce a new is_used property This property is used to Tag the cryptodev backend is used by virtio-crypto or not. Making cryptodev can't be hot unplugged when it's in use. Cleanup resources when cryptodev is finalized. Signed-off-by: Gonglei Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/sysemu/cryptodev.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'include') diff --git a/include/sysemu/cryptodev.h b/include/sysemu/cryptodev.h index 84526c0..461389d 100644 --- a/include/sysemu/cryptodev.h +++ b/include/sysemu/cryptodev.h @@ -202,6 +202,8 @@ struct CryptoDevBackend { Object parent_obj; bool ready; + /* Tag the cryptodev backend is used by virtio-crypto or not */ + bool is_used; CryptoDevBackendConf conf; }; @@ -295,4 +297,25 @@ int cryptodev_backend_crypto_operation( void *opaque, uint32_t queue_index, Error **errp); +/** + * cryptodev_backend_set_used: + * @backend: the cryptodev backend object + * @used: ture or false + * + * Set the cryptodev backend is used by virtio-crypto or not + */ +void cryptodev_backend_set_used(CryptoDevBackend *backend, bool used); + +/** + * cryptodev_backend_is_used: + * @backend: the cryptodev backend object + * + * Return the status that the cryptodev backend is used + * by virtio-crypto or not + * + * Returns: true on used, or false on not used + */ +bool cryptodev_backend_is_used(CryptoDevBackend *backend); + + #endif /* CRYPTODEV_H */ -- cgit v1.1