@@ -7,3 +7,4 @@ obj-y += virtio.o virtio-balloon.o
obj-$(CONFIG_LINUX) += vhost.o vhost-backend.o vhost-user.o
obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock.o
+obj-y += virtio-crypto.o
new file mode 100644
@@ -0,0 +1,199 @@
+/*
+ * Virtio crypto Support
+ *
+ * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Authors:
+ * Gonglei <arei.gonglei@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version. See the COPYING file in the
+ * top-level directory.
+ */
+#include "qemu/osdep.h"
+#include "qemu/iov.h"
+#include "hw/qdev.h"
+#include "qapi/error.h"
+#include "qemu/error-report.h"
+
+#include "hw/virtio/virtio.h"
+#include "hw/virtio/virtio-crypto.h"
+#include "hw/virtio/virtio-access.h"
+#include "standard-headers/linux/virtio_ids.h"
+
+
+static void virtio_crypto_process(VirtIOCrypto *vcrypto)
+{
+}
+
+static void virtio_crypto_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
+{
+
+}
+
+static void virtio_crypto_handle_dataq(VirtIODevice *vdev, VirtQueue *vq)
+{
+
+}
+
+static uint64_t virtio_crypto_get_features(VirtIODevice *vdev,
+ uint64_t features,
+ Error **errp)
+{
+ return features;
+}
+
+static void virtio_crypto_set_features(VirtIODevice *vdev, uint64_t features)
+{
+
+}
+
+static void virtio_crypto_save(QEMUFile *f, void *opaque)
+{
+ VirtIODevice *vdev = opaque;
+
+ virtio_save(vdev, f);
+}
+
+static int virtio_crypto_load(QEMUFile *f, void *opaque, int version_id)
+{
+ VirtIOCrypto *vcrypto = opaque;
+ int ret;
+
+ if (version_id != 1) {
+ return -EINVAL;
+ }
+ ret = virtio_load(VIRTIO_DEVICE(vcrypto), f, version_id);
+ if (ret != 0) {
+ return ret;
+ }
+
+ /* We may have an element ready but couldn't process it due to a quota
+ * limit. Make sure to try again after live migration when the quota may
+ * have been reset.
+ */
+ virtio_crypto_process(vcrypto);
+
+ return 0;
+}
+
+static void virtio_crypto_reset(VirtIODevice *vdev)
+{
+ VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(vdev);
+ /* multiqueue is disabled by default */
+ vcrypto->curr_queues = 1;
+ if (!vcrypto->cryptodev->ready) {
+ vcrypto->status &= ~VIRTIO_CRYPTO_S_HW_READY;
+ } else {
+ vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY;
+ }
+}
+
+static void virtio_crypto_device_realize(DeviceState *dev, Error **errp)
+{
+ VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+ VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(dev);
+ int i;
+
+ vcrypto->cryptodev = vcrypto->conf.cryptodev;
+ if (vcrypto->cryptodev == NULL) {
+ error_setg(errp, "'cryptodev' parameter expects a valid object");
+ return;
+ }
+
+ vcrypto->max_queues = MAX(vcrypto->cryptodev->conf.peers.queues, 1);
+ if (vcrypto->max_queues + 1 > VIRTIO_QUEUE_MAX) {
+ error_setg(errp, "Invalid number of queues (= %" PRIu16 "), "
+ "must be a postive integer less than %d.",
+ vcrypto->max_queues, VIRTIO_QUEUE_MAX - 1);
+ return;
+ }
+
+ virtio_init(vdev, "virtio-crypto", VIRTIO_ID_CRYPTO, vcrypto->config_size);
+ vcrypto->curr_queues = 1;
+
+ for (i = 0; i < vcrypto->max_queues; i++) {
+ virtio_add_queue(vdev, 1024, virtio_crypto_handle_dataq);
+ }
+
+ vcrypto->ctrl_vq = virtio_add_queue(vdev, 64, virtio_crypto_handle_ctrl);
+ if (!vcrypto->cryptodev->ready) {
+ vcrypto->status &= ~VIRTIO_CRYPTO_S_HW_READY;
+ } else {
+ vcrypto->status |= VIRTIO_CRYPTO_S_HW_READY;
+ }
+ register_savevm(dev, "virtio-crypto", -1, 1, virtio_crypto_save,
+ virtio_crypto_load, vcrypto);
+}
+
+static void virtio_crypto_device_unrealize(DeviceState *dev, Error **errp)
+{
+ VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+ VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(dev);
+
+ unregister_savevm(dev, "virtio-crypto", vcrypto);
+
+ virtio_cleanup(vdev);
+}
+
+static Property virtio_crypto_properties[] = {
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void virtio_crypto_get_config(VirtIODevice *vdev, uint8_t *config)
+{
+
+}
+
+static void virtio_crypto_set_config(VirtIODevice *vdev, const uint8_t *config)
+{
+
+}
+
+static void virtio_crypto_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
+ dc->props = virtio_crypto_properties;
+ set_bit(DEVICE_CATEGORY_MISC, dc->categories);
+ vdc->realize = virtio_crypto_device_realize;
+ vdc->unrealize = virtio_crypto_device_unrealize;
+ vdc->get_config = virtio_crypto_get_config;
+ vdc->set_config = virtio_crypto_set_config;
+ vdc->get_features = virtio_crypto_get_features;
+ vdc->set_features = virtio_crypto_set_features;
+ vdc->reset = virtio_crypto_reset;
+}
+
+static void virtio_crypto_instance_init(Object *obj)
+{
+ VirtIOCrypto *vcrypto = VIRTIO_CRYPTO(obj);
+
+ /*
+ * The default config_size is sizeof(struct virtio_crypto_config).
+ * Can be overriden with virtio_crypto_set_config_size.
+ */
+ vcrypto->config_size = sizeof(struct virtio_crypto_config);
+
+ object_property_add_link(obj, "cryptodev",
+ TYPE_QCRYPTO_CRYPTODEV_BACKEND,
+ (Object **)&vcrypto->conf.cryptodev,
+ qdev_prop_allow_set_link_before_realize,
+ OBJ_PROP_LINK_UNREF_ON_RELEASE, NULL);
+}
+
+static const TypeInfo virtio_crypto_info = {
+ .name = TYPE_VIRTIO_CRYPTO,
+ .parent = TYPE_VIRTIO_DEVICE,
+ .instance_size = sizeof(VirtIOCrypto),
+ .instance_init = virtio_crypto_instance_init,
+ .class_init = virtio_crypto_class_init,
+};
+
+static void virtio_register_types(void)
+{
+ type_register_static(&virtio_crypto_info);
+}
+
+type_init(virtio_register_types)
new file mode 100644
@@ -0,0 +1,74 @@
+/*
+ * Virtio crypto Support
+ *
+ * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
+ *
+ * Authors:
+ * Gonglei <arei.gonglei@huawei.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * (at your option) any later version. See the COPYING file in the
+ * top-level directory.
+ */
+
+#ifndef _QEMU_VIRTIO_CRYPTO_H
+#define _QEMU_VIRTIO_CRYPTO_H
+
+#include "standard-headers/linux/virtio_crypto.h"
+#include "hw/virtio/virtio.h"
+#include "sysemu/iothread.h"
+#include "sysemu/cryptodev.h"
+
+
+/* #define DEBUG_VIRTIO_CRYPTO */
+
+#ifdef DEBUG_VIRTIO_CRYPTO
+#define DPRINTF(fmt, ...) \
+do { printf("virtio_crypto: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) do { } while (0)
+#endif
+
+#define TYPE_VIRTIO_CRYPTO "virtio-crypto-device"
+#define VIRTIO_CRYPTO(obj) \
+ OBJECT_CHECK(VirtIOCrypto, (obj), TYPE_VIRTIO_CRYPTO)
+#define VIRTIO_CRYPTO_GET_PARENT_CLASS(obj) \
+ OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_CRYPTO)
+
+
+typedef struct VirtIOCryptoConf {
+ QCryptoCryptoDevBackend *cryptodev;
+} VirtIOCryptoConf;
+
+struct VirtIOCrypto;
+
+typedef struct VirtIOCryptoReq {
+ VirtQueueElement elem;
+ /* flags of operation, such as type of algorithm */
+ uint32_t flags;
+ /* address of in data (Device to Driver) */
+ void *idata_hva;
+ VirtQueue *vq;
+ struct VirtIOCrypto *vcrypto;
+ union {
+ QCryptoCryptoDevBackendSymOpInfo *sym_op_info;
+ } u;
+} VirtIOCryptoReq;
+
+typedef struct VirtIOCrypto {
+ VirtIODevice parent_obj;
+
+ VirtQueue *ctrl_vq;
+
+ VirtIOCryptoConf conf;
+ QCryptoCryptoDevBackend *cryptodev;
+
+ uint32_t max_queues;
+ uint32_t status;
+
+ int multiqueue;
+ uint32_t curr_queues;
+ size_t config_size;
+} VirtIOCrypto;
+
+#endif /* _QEMU_VIRTIO_CRYPTO_H */
@@ -42,5 +42,5 @@
#define VIRTIO_ID_GPU 16 /* virtio GPU */
#define VIRTIO_ID_INPUT 18 /* virtio input */
#define VIRTIO_ID_VSOCK 19 /* virtio vsock transport */
-
+#define VIRTIO_ID_CRYPTO 20 /* virtio crypto */
#endif /* _LINUX_VIRTIO_IDS_H */
Introduce the virtio crypto realization, I'll finish the core code in the following patches. The thoughts came from virtio net realization. For more information see: http://qemu-project.org/Features/VirtioCrypto Signed-off-by: Gonglei <arei.gonglei@huawei.com> --- hw/virtio/Makefile.objs | 1 + hw/virtio/virtio-crypto.c | 199 ++++++++++++++++++++++++++++ include/hw/virtio/virtio-crypto.h | 74 +++++++++++ include/standard-headers/linux/virtio_ids.h | 2 +- 4 files changed, 275 insertions(+), 1 deletion(-) create mode 100644 hw/virtio/virtio-crypto.c create mode 100644 include/hw/virtio/virtio-crypto.h