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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=pizhenwei@bytedance.com; helo=mail-pj1-x1030.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @bytedance-com.20210112.gappssmtp.com) X-ZM-MESSAGEID: 1674120017206100001 Rather than exposing akcipher service/RSA algorithm to virtio crypto device unconditionally, detect akcipher capability from akcipher crypto framework. This avoids unsuccessful requests. Reviewed-by: Daniel P. Berrang=C3=A9 Signed-off-by: zhenwei pi --- backends/cryptodev-builtin.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) diff --git a/backends/cryptodev-builtin.c b/backends/cryptodev-builtin.c index c0fbb650d7..c45b5906c5 100644 --- a/backends/cryptodev-builtin.c +++ b/backends/cryptodev-builtin.c @@ -59,6 +59,19 @@ struct CryptoDevBackendBuiltin { CryptoDevBackendBuiltinSession *sessions[MAX_NUM_SESSIONS]; }; =20 +static void cryptodev_builtin_init_akcipher(CryptoDevBackend *backend) +{ + QCryptoAkCipherOptions opts; + + opts.alg =3D QCRYPTO_AKCIPHER_ALG_RSA; + opts.u.rsa.padding_alg =3D QCRYPTO_RSA_PADDING_ALG_RAW; + if (qcrypto_akcipher_supports(&opts)) { + backend->conf.crypto_services |=3D + (1u << QCRYPTODEV_BACKEND_SERVICE_AKCIPHER); + backend->conf.akcipher_algo =3D 1u << VIRTIO_CRYPTO_AKCIPHER_RSA; + } +} + static void cryptodev_builtin_init( CryptoDevBackend *backend, Error **errp) { @@ -81,11 +94,9 @@ static void cryptodev_builtin_init( backend->conf.crypto_services =3D 1u << QCRYPTODEV_BACKEND_SERVICE_CIPHER | 1u << QCRYPTODEV_BACKEND_SERVICE_HASH | - 1u << QCRYPTODEV_BACKEND_SERVICE_MAC | - 1u << QCRYPTODEV_BACKEND_SERVICE_AKCIPHER; + 1u << QCRYPTODEV_BACKEND_SERVICE_MAC; backend->conf.cipher_algo_l =3D 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC; backend->conf.hash_algo =3D 1u << VIRTIO_CRYPTO_HASH_SHA1; - backend->conf.akcipher_algo =3D 1u << VIRTIO_CRYPTO_AKCIPHER_RSA; /* * Set the Maximum length of crypto request. * Why this value? Just avoid to overflow when @@ -94,6 +105,7 @@ static void cryptodev_builtin_init( backend->conf.max_size =3D LONG_MAX - sizeof(CryptoDevBackendOpInfo); backend->conf.max_cipher_key_len =3D CRYPTODEV_BUITLIN_MAX_CIPHER_KEY_= LEN; backend->conf.max_auth_key_len =3D CRYPTODEV_BUITLIN_MAX_AUTH_KEY_LEN; + cryptodev_builtin_init_akcipher(backend); =20 cryptodev_backend_set_ready(backend, true); } --=20 2.34.1