On Thu, Feb 08, 2018 at 09:09:13PM +0200, Michael S. Tsirkin wrote: > From: Gonglei <arei.gong...@huawei.com> > > Usage: > -chardev socket,id=charcrypto0,path=/path/to/your/socket > -object cryptodev-vhost-user,id=cryptodev0,chardev=charcrypto0 > -device virtio-crypto-pci,id=crypto0,cryptodev=cryptodev0 > > Signed-off-by: Gonglei <arei.gong...@huawei.com> > Signed-off-by: Longpeng(Mike) <longpe...@huawei.com> > Signed-off-by: Jay Zhou <jianjay.z...@huawei.com> > Reviewed-by: Michael S. Tsirkin <m...@redhat.com> > Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Dropped this and follow-up patches due to failures on non-linux hosts and stop corrections. > --- > configure | 15 ++ > include/sysemu/cryptodev-vhost.h | 154 ++++++++++++++++++ > backends/cryptodev-vhost-user.c | 333 > +++++++++++++++++++++++++++++++++++++++ > backends/cryptodev-vhost.c | 89 +++++++++++ > vl.c | 6 + > backends/Makefile.objs | 6 + > qemu-options.hx | 21 +++ > 7 files changed, 624 insertions(+) > create mode 100644 include/sysemu/cryptodev-vhost.h > create mode 100644 backends/cryptodev-vhost-user.c > create mode 100644 backends/cryptodev-vhost.c > > diff --git a/configure b/configure > index 831ebf2..296f980 100755 > --- a/configure > +++ b/configure > @@ -344,6 +344,7 @@ xfs="" > tcg="yes" > > vhost_net="no" > +vhost_crypto="no" > vhost_scsi="no" > vhost_vsock="no" > vhost_user="" > @@ -814,6 +815,7 @@ Linux) > linux_user="yes" > kvm="yes" > vhost_net="yes" > + vhost_crypto="yes" > vhost_scsi="yes" > vhost_vsock="yes" > QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$(pwd)/linux-headers > $QEMU_INCLUDES" > @@ -1184,6 +1186,14 @@ for opt do > ;; > --enable-vhost-net) vhost_net="yes" > ;; > + --disable-vhost-crypto) vhost_crypto="no" > + ;; > + --enable-vhost-crypto) > + vhost_crypto="yes" > + if test "$mingw32" = "yes"; then > + error_exit "vhost-crypto isn't available on win32" > + fi > + ;; > --disable-vhost-scsi) vhost_scsi="no" > ;; > --enable-vhost-scsi) vhost_scsi="yes" > @@ -1582,6 +1592,7 @@ disabled with --disable-FEATURE, default is enabled if > available: > cap-ng libcap-ng support > attr attr and xattr support > vhost-net vhost-net acceleration support > + vhost-crypto vhost-crypto acceleration support > spice spice > rbd rados block device (rbd) > libiscsi iscsi support > @@ -5704,6 +5715,7 @@ echo "madvise $madvise" > echo "posix_madvise $posix_madvise" > echo "libcap-ng support $cap_ng" > echo "vhost-net support $vhost_net" > +echo "vhost-crypto support $vhost_crypto" > echo "vhost-scsi support $vhost_scsi" > echo "vhost-vsock support $vhost_vsock" > echo "vhost-user support $vhost_user" > @@ -6783,6 +6795,9 @@ if supported_kvm_target $target; then > echo "CONFIG_VHOST_USER_NET_TEST_$target_name=y" >> > $config_host_mak > fi > fi > + if test "$vhost_crypto" = "yes" ; then > + echo "CONFIG_VHOST_CRYPTO=y" >> $config_target_mak > + fi > fi > if supported_hax_target $target; then > echo "CONFIG_HAX=y" >> $config_target_mak > diff --git a/include/sysemu/cryptodev-vhost.h > b/include/sysemu/cryptodev-vhost.h > new file mode 100644 > index 0000000..fb26b86 > --- /dev/null > +++ b/include/sysemu/cryptodev-vhost.h > @@ -0,0 +1,154 @@ > +/* > + * QEMU Crypto Device Common Vhost Implement > + * > + * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. > + * > + * Authors: > + * Gonglei <arei.gong...@huawei.com> > + * Jay Zhou <jianjay.z...@huawei.com> > + * > + * This library is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2 of the License, or (at your option) any later version. > + * > + * This library is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with this library; if not, see > <http://www.gnu.org/licenses/>. > + * > + */ > +#ifndef CRYPTODEV_VHOST_H > +#define CRYPTODEV_VHOST_H > + > +#include "qemu-common.h" > +#include "hw/virtio/vhost.h" > +#include "hw/virtio/vhost-backend.h" > +#include "chardev/char.h" > + > +#include "sysemu/cryptodev.h" > + > + > +typedef struct CryptoDevBackendVhostOptions { > + VhostBackendType backend_type; > + void *opaque; > + int total_queues; > + CryptoDevBackendClient *cc; > +} CryptoDevBackendVhostOptions; > + > +typedef struct CryptoDevBackendVhost { > + struct vhost_dev dev; > + struct vhost_virtqueue vqs[1]; > + int backend; > + CryptoDevBackendClient *cc; > +} CryptoDevBackendVhost; > + > +/** > + * cryptodev_vhost_get_max_queues: > + * @crypto: the cryptodev backend common vhost object > + * > + * Get the maximum queue number of @crypto. > + * > + * > + * Returns: the maximum queue number > + */ > +uint64_t > +cryptodev_vhost_get_max_queues( > + CryptoDevBackendVhost *crypto); > + > + > +/** > + * cryptodev_vhost_init: > + * @options: the common vhost object's option > + * > + * Creates a new cryptodev backend common vhost object > + * > + ** The returned object must be released with > + * cryptodev_vhost_cleanup() when no > + * longer required > + * > + * Returns: the cryptodev backend common vhost object > + */ > +struct CryptoDevBackendVhost * > +cryptodev_vhost_init( > + CryptoDevBackendVhostOptions *options); > + > +/** > + * cryptodev_vhost_cleanup: > + * @crypto: the cryptodev backend common vhost object > + * > + * Clean the resouce associated with @crypto that realizaed > + * by cryptodev_vhost_init() > + * > + */ > +void cryptodev_vhost_cleanup( > + CryptoDevBackendVhost *crypto); > + > +/** > + * cryptodev_get_vhost: > + * @cc: the client object for each queue > + * @b: the cryptodev backend common vhost object > + * @queue: the cryptodev backend queue index > + * > + * Gets a new cryptodev backend common vhost object based on > + * @b and @queue > + * > + * Returns: the cryptodev backend common vhost object > + */ > +CryptoDevBackendVhost * > +cryptodev_get_vhost(CryptoDevBackendClient *cc, > + CryptoDevBackend *b, > + uint16_t queue); > +/** > + * cryptodev_vhost_start: > + * @dev: the virtio crypto object > + * @total_queues: the total count of queue > + * > + * Starts the vhost crypto logic > + * > + * Returns: 0 for success, negative for errors > + */ > +int cryptodev_vhost_start(VirtIODevice *dev, int total_queues); > + > +/** > + * cryptodev_vhost_stop: > + * @dev: the virtio crypto object > + * @total_queues: the total count of queue > + * > + * Stops the vhost crypto logic > + * > + */ > +void cryptodev_vhost_stop(VirtIODevice *dev, int total_queues); > + > +/** > + * cryptodev_vhost_virtqueue_mask: > + * @dev: the virtio crypto object > + * @queue: the cryptodev backend queue index > + * @idx: the virtqueue index > + * @mask: mask or not (true or false) > + * > + * Mask/unmask events for @idx virtqueue on @dev device > + * > + */ > +void cryptodev_vhost_virtqueue_mask(VirtIODevice *dev, > + int queue, > + int idx, bool mask); > + > +/** > + * cryptodev_vhost_virtqueue_pending: > + * @dev: the virtio crypto object > + * @queue: the cryptodev backend queue index > + * @idx: the virtqueue index > + * > + * Test and clear event pending status for @idx virtqueue on @dev device. > + * Should be called after unmask to avoid losing events. > + * > + * Returns: true for success, false for errors > + */ > +bool cryptodev_vhost_virtqueue_pending(VirtIODevice *dev, > + int queue, int idx); > + > +#endif /* CRYPTODEV_VHOST_H */ > diff --git a/backends/cryptodev-vhost-user.c b/backends/cryptodev-vhost-user.c > new file mode 100644 > index 0000000..4e63ece > --- /dev/null > +++ b/backends/cryptodev-vhost-user.c > @@ -0,0 +1,333 @@ > +/* > + * QEMU Cryptodev backend for QEMU cipher APIs > + * > + * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. > + * > + * Authors: > + * Gonglei <arei.gong...@huawei.com> > + * > + * This library is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2 of the License, or (at your option) any later version. > + * > + * This library is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with this library; if not, see > <http://www.gnu.org/licenses/>. > + * > + */ > + > +#include "qemu/osdep.h" > +#include "hw/boards.h" > +#include "qapi/error.h" > +#include "qapi/qmp/qerror.h" > +#include "qemu/error-report.h" > +#include "standard-headers/linux/virtio_crypto.h" > +#include "sysemu/cryptodev-vhost.h" > +#include "chardev/char-fe.h" > + > + > +/** > + * @TYPE_CRYPTODEV_BACKEND_VHOST_USER: > + * name of backend that uses vhost user server > + */ > +#define TYPE_CRYPTODEV_BACKEND_VHOST_USER "cryptodev-vhost-user" > + > +#define CRYPTODEV_BACKEND_VHOST_USER(obj) \ > + OBJECT_CHECK(CryptoDevBackendVhostUser, \ > + (obj), TYPE_CRYPTODEV_BACKEND_VHOST_USER) > + > + > +typedef struct CryptoDevBackendVhostUser { > + CryptoDevBackend parent_obj; > + > + CharBackend chr; > + char *chr_name; > + bool opened; > + CryptoDevBackendVhost *vhost_crypto[MAX_CRYPTO_QUEUE_NUM]; > +} CryptoDevBackendVhostUser; > + > +static int > +cryptodev_vhost_user_running( > + CryptoDevBackendVhost *crypto) > +{ > + return crypto ? 1 : 0; > +} > + > +static void cryptodev_vhost_user_stop(int queues, > + CryptoDevBackendVhostUser *s) > +{ > + size_t i; > + > + for (i = 0; i < queues; i++) { > + if (!cryptodev_vhost_user_running(s->vhost_crypto[i])) { > + continue; > + } > + > + if (s->vhost_crypto) { > + cryptodev_vhost_cleanup(s->vhost_crypto[i]); > + s->vhost_crypto[i] = NULL; > + } > + } > +} > + > +static int > +cryptodev_vhost_user_start(int queues, > + CryptoDevBackendVhostUser *s) > +{ > + CryptoDevBackendVhostOptions options; > + CryptoDevBackend *b = CRYPTODEV_BACKEND(s); > + int max_queues; > + size_t i; > + > + for (i = 0; i < queues; i++) { > + if (cryptodev_vhost_user_running(s->vhost_crypto[i])) { > + continue; > + } > + > + options.opaque = &s->chr; > + options.backend_type = VHOST_BACKEND_TYPE_USER; > + options.cc = b->conf.peers.ccs[i]; > + s->vhost_crypto[i] = cryptodev_vhost_init(&options); > + if (!s->vhost_crypto[i]) { > + error_report("failed to init vhost_crypto for queue %lu", i); > + goto err; > + } > + > + if (i == 0) { > + max_queues = > + cryptodev_vhost_get_max_queues(s->vhost_crypto[i]); > + if (queues > max_queues) { > + error_report("you are asking more queues than supported: %d", > + max_queues); > + goto err; > + } > + } > + } > + > + return 0; > + > +err: > + cryptodev_vhost_user_stop(i + 1, s); > + return -1; > +} > + > +static Chardev * > +cryptodev_vhost_claim_chardev(CryptoDevBackendVhostUser *s, > + Error **errp) > +{ > + Chardev *chr; > + > + if (s->chr_name == NULL) { > + error_setg(errp, QERR_INVALID_PARAMETER_VALUE, > + "chardev", "a valid character device"); > + return NULL; > + } > + > + chr = qemu_chr_find(s->chr_name); > + if (chr == NULL) { > + error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, > + "Device '%s' not found", s->chr_name); > + return NULL; > + } > + > + return chr; > +} > + > +static void cryptodev_vhost_user_event(void *opaque, int event) > +{ > + CryptoDevBackendVhostUser *s = opaque; > + CryptoDevBackend *b = CRYPTODEV_BACKEND(s); > + Error *err = NULL; > + int queues = b->conf.peers.queues; > + > + assert(queues < MAX_CRYPTO_QUEUE_NUM); > + > + switch (event) { > + case CHR_EVENT_OPENED: > + if (cryptodev_vhost_user_start(queues, s) < 0) { > + exit(1); > + } > + b->ready = true; > + break; > + case CHR_EVENT_CLOSED: > + b->ready = false; > + cryptodev_vhost_user_stop(queues, s); > + break; > + } > + > + if (err) { > + error_report_err(err); > + } > +} > + > +static void cryptodev_vhost_user_init( > + CryptoDevBackend *backend, Error **errp) > +{ > + int queues = backend->conf.peers.queues; > + size_t i; > + Error *local_err = NULL; > + Chardev *chr; > + CryptoDevBackendClient *cc; > + CryptoDevBackendVhostUser *s = > + CRYPTODEV_BACKEND_VHOST_USER(backend); > + > + chr = cryptodev_vhost_claim_chardev(s, &local_err); > + if (local_err) { > + error_propagate(errp, local_err); > + return; > + } > + > + s->opened = true; > + > + for (i = 0; i < queues; i++) { > + cc = cryptodev_backend_new_client( > + "cryptodev-vhost-user", NULL); > + cc->info_str = g_strdup_printf("cryptodev-vhost-user%lu to %s ", > + i, chr->label); > + cc->queue_index = i; > + > + backend->conf.peers.ccs[i] = cc; > + > + if (i == 0) { > + if (!qemu_chr_fe_init(&s->chr, chr, &local_err)) { > + error_propagate(errp, local_err); > + return; > + } > + } > + } > + > + qemu_chr_fe_set_handlers(&s->chr, NULL, NULL, > + cryptodev_vhost_user_event, NULL, s, NULL, true); > + > + backend->conf.crypto_services = > + 1u << VIRTIO_CRYPTO_SERVICE_CIPHER | > + 1u << VIRTIO_CRYPTO_SERVICE_HASH | > + 1u << VIRTIO_CRYPTO_SERVICE_MAC; > + backend->conf.cipher_algo_l = 1u << VIRTIO_CRYPTO_CIPHER_AES_CBC; > + backend->conf.hash_algo = 1u << VIRTIO_CRYPTO_HASH_SHA1; > +} > + > +static int64_t cryptodev_vhost_user_sym_create_session( > + CryptoDevBackend *backend, > + CryptoDevBackendSymSessionInfo *sess_info, > + uint32_t queue_index, Error **errp) > +{ > + return 0; > +} > + > +static int cryptodev_vhost_user_sym_close_session( > + CryptoDevBackend *backend, > + uint64_t session_id, > + uint32_t queue_index, Error **errp) > +{ > + return 0; > +} > + > +static int cryptodev_vhost_user_sym_operation( > + CryptoDevBackend *backend, > + CryptoDevBackendSymOpInfo *op_info, > + uint32_t queue_index, Error **errp) > +{ > + return VIRTIO_CRYPTO_OK; > +} > + > +static void cryptodev_vhost_user_cleanup( > + CryptoDevBackend *backend, > + Error **errp) > +{ > + CryptoDevBackendVhostUser *s = > + CRYPTODEV_BACKEND_VHOST_USER(backend); > + size_t i; > + int queues = backend->conf.peers.queues; > + CryptoDevBackendClient *cc; > + > + cryptodev_vhost_user_stop(queues, s); > + > + for (i = 0; i < queues; i++) { > + cc = backend->conf.peers.ccs[i]; > + if (cc) { > + cryptodev_backend_free_client(cc); > + backend->conf.peers.ccs[i] = NULL; > + } > + } > +} > + > +static void cryptodev_vhost_user_set_chardev(Object *obj, > + const char *value, Error **errp) > +{ > + CryptoDevBackendVhostUser *s = > + CRYPTODEV_BACKEND_VHOST_USER(obj); > + > + if (s->opened) { > + error_setg(errp, QERR_PERMISSION_DENIED); > + } else { > + g_free(s->chr_name); > + s->chr_name = g_strdup(value); > + } > +} > + > +static char * > +cryptodev_vhost_user_get_chardev(Object *obj, Error **errp) > +{ > + CryptoDevBackendVhostUser *s = > + CRYPTODEV_BACKEND_VHOST_USER(obj); > + Chardev *chr = qemu_chr_fe_get_driver(&s->chr); > + > + if (chr && chr->label) { > + return g_strdup(chr->label); > + } > + > + return NULL; > +} > + > +static void cryptodev_vhost_user_instance_int(Object *obj) > +{ > + object_property_add_str(obj, "chardev", > + cryptodev_vhost_user_get_chardev, > + cryptodev_vhost_user_set_chardev, > + NULL); > +} > + > +static void cryptodev_vhost_user_finalize(Object *obj) > +{ > + CryptoDevBackendVhostUser *s = > + CRYPTODEV_BACKEND_VHOST_USER(obj); > + > + qemu_chr_fe_deinit(&s->chr, false); > + > + g_free(s->chr_name); > +} > + > +static void > +cryptodev_vhost_user_class_init(ObjectClass *oc, void *data) > +{ > + CryptoDevBackendClass *bc = CRYPTODEV_BACKEND_CLASS(oc); > + > + bc->init = cryptodev_vhost_user_init; > + bc->cleanup = cryptodev_vhost_user_cleanup; > + bc->create_session = cryptodev_vhost_user_sym_create_session; > + bc->close_session = cryptodev_vhost_user_sym_close_session; > + bc->do_sym_op = cryptodev_vhost_user_sym_operation; > +} > + > +static const TypeInfo cryptodev_vhost_user_info = { > + .name = TYPE_CRYPTODEV_BACKEND_VHOST_USER, > + .parent = TYPE_CRYPTODEV_BACKEND, > + .class_init = cryptodev_vhost_user_class_init, > + .instance_init = cryptodev_vhost_user_instance_int, > + .instance_finalize = cryptodev_vhost_user_finalize, > + .instance_size = sizeof(CryptoDevBackendVhostUser), > +}; > + > +static void > +cryptodev_vhost_user_register_types(void) > +{ > + type_register_static(&cryptodev_vhost_user_info); > +} > + > +type_init(cryptodev_vhost_user_register_types); > diff --git a/backends/cryptodev-vhost.c b/backends/cryptodev-vhost.c > new file mode 100644 > index 0000000..27e1c4a > --- /dev/null > +++ b/backends/cryptodev-vhost.c > @@ -0,0 +1,89 @@ > +/* > + * QEMU Cryptodev backend for QEMU cipher APIs > + * > + * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. > + * > + * Authors: > + * Gonglei <arei.gong...@huawei.com> > + * Jay Zhou <jianjay.z...@huawei.com> > + * > + * This library is free software; you can redistribute it and/or > + * modify it under the terms of the GNU Lesser General Public > + * License as published by the Free Software Foundation; either > + * version 2 of the License, or (at your option) any later version. > + * > + * This library is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * Lesser General Public License for more details. > + * > + * You should have received a copy of the GNU Lesser General Public > + * License along with this library; if not, see > <http://www.gnu.org/licenses/>. > + * > + */ > + > +#include "qemu/osdep.h" > +#include "sysemu/cryptodev-vhost.h" > + > +#ifdef CONFIG_VHOST_CRYPTO > +uint64_t > +cryptodev_vhost_get_max_queues( > + CryptoDevBackendVhost *crypto) > +{ > + return crypto->dev.max_queues; > +} > + > +void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto) > +{ > + vhost_dev_cleanup(&crypto->dev); > + g_free(crypto); > +} > + > +struct CryptoDevBackendVhost * > +cryptodev_vhost_init( > + CryptoDevBackendVhostOptions *options) > +{ > + int r; > + CryptoDevBackendVhost *crypto; > + > + crypto = g_new(CryptoDevBackendVhost, 1); > + crypto->dev.max_queues = 1; > + crypto->dev.nvqs = 1; > + crypto->dev.vqs = crypto->vqs; > + > + crypto->cc = options->cc; > + > + crypto->dev.protocol_features = 0; > + crypto->backend = -1; > + > + /* vhost-user needs vq_index to initiate a specific queue pair */ > + crypto->dev.vq_index = crypto->cc->queue_index * crypto->dev.nvqs; > + > + r = vhost_dev_init(&crypto->dev, options->opaque, options->backend_type, > 0); > + if (r < 0) { > + goto fail; > + } > + > + return crypto; > +fail: > + g_free(crypto); > + return NULL; > +} > + > +#else > +uint64_t > +cryptodev_vhost_get_max_queues(CryptoDevBackendVhost *crypto) > +{ > + return 0; > +} > + > +void cryptodev_vhost_cleanup(CryptoDevBackendVhost *crypto) > +{ > +} > + > +struct CryptoDevBackendVhost * > +cryptodev_vhost_init(CryptoDevBackendVhostOptions *options) > +{ > + return NULL; > +} > +#endif > diff --git a/vl.c b/vl.c > index 32db91d..4ef4e67 100644 > --- a/vl.c > +++ b/vl.c > @@ -2852,6 +2852,12 @@ static bool object_create_initial(const char *type) > return false; > } > > +#if defined(CONFIG_VHOST_USER) && defined(CONFIG_LINUX) > + if (g_str_equal(type, "cryptodev-vhost-user")) { > + return false; > + } > +#endif > + > /* > * return false for concrete netfilters since > * they depend on netdevs already existing > diff --git a/backends/Makefile.objs b/backends/Makefile.objs > index 67eeeba..efdcc5a 100644 > --- a/backends/Makefile.objs > +++ b/backends/Makefile.objs > @@ -10,3 +10,9 @@ common-obj-y += cryptodev.o > common-obj-y += cryptodev-builtin.o > > common-obj-$(CONFIG_LINUX) += hostmem-memfd.o > + > +ifeq ($(CONFIG_VIRTIO),y) > +common-obj-$(CONFIG_LINUX) += cryptodev-vhost.o > +common-obj-$(call land,$(CONFIG_VHOST_USER),$(CONFIG_LINUX)) += \ > + cryptodev-vhost-user.o > +endif > diff --git a/qemu-options.hx b/qemu-options.hx > index d15c171..cdc464c 100644 > --- a/qemu-options.hx > +++ b/qemu-options.hx > @@ -4225,6 +4225,27 @@ which specify the queue number of cryptodev backend, > the default of > [...] > @end example > > +@item -object > cryptodev-vhost-user,id=@var{id},chardev=@var{chardevid}[,queues=@var{queues}] > + > +Creates a vhost-user cryptodev backend, backed by a chardev @var{chardevid}. > +The @var{id} parameter is a unique ID that will be used to reference this > +cryptodev backend from the @option{virtio-crypto} device. > +The chardev should be a unix domain socket backed one. The vhost-user uses > +a specifically defined protocol to pass vhost ioctl replacement messages > +to an application on the other end of the socket. > +The @var{queues} parameter is optional, which specify the queue number > +of cryptodev backend for multiqueue vhost-user, the default of @var{queues} > is 1. > + > +@example > + > + # qemu-system-x86_64 \ > + [...] \ > + -chardev socket,id=chardev0,path=/path/to/socket \ > + -object cryptodev-vhost-user,id=cryptodev0,chardev=chardev0 \ > + -device virtio-crypto-pci,id=crypto0,cryptodev=cryptodev0 \ > + [...] > +@end example > + > @item -object > secret,id=@var{id},data=@var{string},format=@var{raw|base64}[,keyid=@var{secretid},iv=@var{string}] > @item -object > secret,id=@var{id},file=@var{filename},format=@var{raw|base64}[,keyid=@var{secretid},iv=@var{string}] > > -- > MST >
