search for: virtio_rpmb_res_general_failur

Displaying 2 results from an estimated 2 matches for "virtio_rpmb_res_general_failur".

2020 Sep 28
0
[RFC PATCH 15/19] tools/vhost-user-rpmb: implement VIRTIO_RPMB_REQ_DATA_WRITE
...!r->key) { >> + g_warning("no key programmed"); >> + r->last_result = VIRTIO_RPMB_RES_NO_AUTH_KEY; >> + } else if (block_count == 0 || >> + block_count > r->virtio_config.max_wr_cnt) { >> + r->last_result = VIRTIO_RPMB_RES_GENERAL_FAILURE; >> + } else if (false /* what does an expired write counter mean? */) { >> > IIRC, the counter has room for a 32-bit value and the counter will never > wrap around. So once the counter have reached max for uint32_t, then > there is an additional bit set (permanently) in th...
2020 Sep 25
20
[RFC PATCH 00/19] vhost-user-rpmb (Replay Protected Memory Block)
Hi, This is an initial implementation of a vhost-user backend for the VirtIO RPMB device. The device is currently in the draft of the next VirtIO specification and describes block device which uses combination of a key, nonce, hashing and a persistent write counter to prevent replay attacks (hence Replay Protected Memory Block). It is implemented as a vhost-user device because we want to