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Subject: [PATCH v3 07/10] virtio-crypto: set capacity of algorithms supported


Expose the capacity of algorithms supported by
virtio crypto device to the frontend driver using
pci configuration space.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
---
 hw/virtio/virtio-crypto.c         | 39 ++++++++++++++++++++++++++++++++++++++-
 include/hw/virtio/virtio-crypto.h | 14 ++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
index b1c10b2..e78656c 100644
--- a/hw/virtio/virtio-crypto.c
+++ b/hw/virtio/virtio-crypto.c
@@ -87,6 +87,26 @@ static void virtio_crypto_reset(VirtIODevice *vdev)
     }
 }
 
+static void virtio_crypto_init_config(VirtIODevice *vdev)
+{
+    VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev);
+
+    vcrypto->conf.crypto_services =
+                     vcrypto->conf.cryptodev->conf.crypto_services;
+    vcrypto->conf.cipher_algo_l =
+                     vcrypto->conf.cryptodev->conf.cipher_algo_l;
+    vcrypto->conf.cipher_algo_h =
+                     vcrypto->conf.cryptodev->conf.cipher_algo_h;
+    vcrypto->conf.hash_algo = vcrypto->conf.cryptodev->conf.hash_algo;
+    vcrypto->conf.mac_algo_l = vcrypto->conf.cryptodev->conf.mac_algo_l;
+    vcrypto->conf.mac_algo_h = vcrypto->conf.cryptodev->conf.mac_algo_h;
+    vcrypto->conf.asym_algo = vcrypto->conf.cryptodev->conf.asym_algo;
+    vcrypto->conf.kdf_algo = vcrypto->conf.cryptodev->conf.kdf_algo;
+    vcrypto->conf.aead_algo = vcrypto->conf.cryptodev->conf.aead_algo;
+    vcrypto->conf.primitive_algo =
+                     vcrypto->conf.cryptodev->conf.primitive_algo;
+}
+
 static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
@@ -120,6 +140,7 @@ static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
     } else {
         vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY;
     }
+    virtio_crypto_init_config(vdev);
     register_savevm(dev, "virtio-crypto", -1, 1, virtio_crypto_save,
                     virtio_crypto_load, vcrypto);
 }
@@ -140,7 +161,23 @@ static Property virtio_crypto_properties[] = {
 
 static void virtio_crypto_get_config(VirtIODevice *vdev, uint8_t *config)
 {
-
+    VirtIOCrypto *c = VIRTIO_CRYPTO(vdev);
+    struct virtio_crypto_config crypto_cfg;
+
+    crypto_cfg.status = c->status;
+    crypto_cfg.max_dataqueues = c->max_queues;
+    crypto_cfg.crypto_services = c->conf.crypto_services;
+    crypto_cfg.cipher_algo_l = c->conf.cipher_algo_l;
+    crypto_cfg.cipher_algo_h = c->conf.cipher_algo_h;
+    crypto_cfg.hash_algo = c->conf.hash_algo;
+    crypto_cfg.mac_algo_l = c->conf.mac_algo_l;
+    crypto_cfg.mac_algo_h = c->conf.mac_algo_h;
+    crypto_cfg.asym_algo = c->conf.asym_algo;
+    crypto_cfg.kdf_algo = c->conf.kdf_algo;
+    crypto_cfg.aead_algo = c->conf.aead_algo;
+    crypto_cfg.primitive_algo = c->conf.primitive_algo;
+
+    memcpy(config, &crypto_cfg, c->config_size);
 }
 
 static void virtio_crypto_set_config(VirtIODevice *vdev, const uint8_t *config)
diff --git a/include/hw/virtio/virtio-crypto.h b/include/hw/virtio/virtio-crypto.h
index 2fe2499..f6fe2d8 100644
--- a/include/hw/virtio/virtio-crypto.h
+++ b/include/hw/virtio/virtio-crypto.h
@@ -39,6 +39,20 @@ do { printf("virtio_crypto: " fmt , ## __VA_ARGS__); } while (0)
 
 typedef struct VirtIOCryptoConf {
     QCryptoCryptoDevBackend *cryptodev;
+
+    /* Supported service mask */
+    uint32_t crypto_services;
+
+    /* Detailed algorithms mask */
+    uint32_t cipher_algo_l;
+    uint32_t cipher_algo_h;
+    uint32_t hash_algo;
+    uint32_t mac_algo_l;
+    uint32_t mac_algo_h;
+    uint32_t asym_algo;
+    uint32_t kdf_algo;
+    uint32_t aead_algo;
+    uint32_t primitive_algo;
 } VirtIOCryptoConf;
 
 struct VirtIOCrypto;
-- 
1.7.12.4




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