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vse/cryptodev: add memory map/unmap interface

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- add support for zero copy SHA/GMAC operations
- add support to read zero copy nodes in DT
- support memory buf map/unmap ioctl interfaces
- unmap all memory buffers when FD corresponding
  to device node is closed.
- support only one open call at a time for zero
  copy nodes.

Bug 4999798

Change-Id: If110108a73b24ca9f523a8c67a47c02b922c3fd8
Signed-off-by: Nagaraj P N <nagarajp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3292084
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Leo Chiu <lchiu@nvidia.com>
Reviewed-by: Sandeep Trasi <strasi@nvidia.com>
This commit is contained in:
Nagaraj P N
2025-02-07 19:08:01 +05:30
committed by Jon Hunter
parent 268a87ecfa
commit 965bd044c6
4 changed files with 715 additions and 147 deletions
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54
include/uapi/misc/tegra-nvvse-cryptodev.h
View File

@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* SPDX-FileCopyrightText: Copyright (c) 2021-2024 NVIDIA CORPORATION & AFFILIATES.
* SPDX-FileCopyrightText: Copyright (c) 2021-2025 NVIDIA CORPORATION & AFFILIATES.
* All rights reserved.
*
* Cryptographic API.
@@ -30,6 +30,8 @@
#define TEGRA_NVVSE_CMDID_TSEC_SIGN_VERIFY 13
#define TEGRA_NVVSE_CMDID_TSEC_GET_KEYLOAD_STATUS 14
#define TEGRA_NVVSE_CMDID_HMAC_SHA_SIGN_VERIFY 15
#define TEGRA_NVVSE_CMDID_MAP_MEMBUF 17
#define TEGRA_NVVSE_CMDID_UNMAP_MEMBUF 18
/** Defines the length of the AES-CBC Initial Vector */
#define TEGRA_NVVSE_AES_IV_LEN 16U
@@ -142,6 +144,15 @@ struct tegra_nvvse_sha_update_ctl {
uint8_t *digest_buffer;
/** Holds the size of the digest buffer */
uint32_t digest_size;
/** [in] Flag to indicate Zero copy request.
* 0 indicates non-Zero Copy request
* non-zero indicates Zero copy request
*/
uint8_t b_is_zero_copy;
/** [in] Holds the Input buffer IOVA address
* Not used when b_is_zero_copy flag is 0.
*/
uint64_t in_buff_iova;
};
#define NVVSE_IOCTL_CMDID_UPDATE_SHA _IOW(TEGRA_NVVSE_IOC_MAGIC, TEGRA_NVVSE_CMDID_UPDATE_SHA, \
struct tegra_nvvse_sha_update_ctl)
@@ -353,6 +364,19 @@ struct tegra_nvvse_aes_gmac_sign_verify_ctl {
* - Non-zero value indicates GMAC verification failure.
*/
uint8_t result;
/** [in] Flag to indicate Zero copy request.
* 0 indicates non-Zero Copy request
* non-zero indicates Zero copy request
*/
uint8_t b_is_zero_copy;
/** [in] Holds the Source buffer IOVA address
* Not used when b_is_zero_copy flag is 0.
*/
uint64_t src_buffer_iova;
/** [in] Holds the Tag buffer IOVA address
* Not used when b_is_zero_copy flag is 0.
*/
uint64_t tag_buffer_iova;
/** [in] Flag to indicate SM4 request.
* 0 indicates non-SM4 request
* non-zero indicates SM4 request
@@ -441,6 +465,34 @@ struct tegra_nvvse_tsec_get_keyload_status {
TEGRA_NVVSE_CMDID_TSEC_GET_KEYLOAD_STATUS, \
struct tegra_nvvse_tsec_get_keyload_status)
/**
* \brief Holds Map Membuf request parameters
*/
struct tegra_nvvse_map_membuf_ctl {
/** [in] Holds File descriptor ID
* Needs to be non-negative/non-zero value.
*/
int32_t fd;
/** [out] Holds IOVA corresponding to mapped memory buffer */
uint64_t iova;
};
#define NVVSE_IOCTL_CMDID_MAP_MEMBUF _IOWR(TEGRA_NVVSE_IOC_MAGIC, \
TEGRA_NVVSE_CMDID_MAP_MEMBUF, \
struct tegra_nvvse_map_membuf_ctl)
/**
* \brief Holds the Unmap Membuf request parameters
*/
struct tegra_nvvse_unmap_membuf_ctl {
/** [in] Holds File descriptor ID
* Needs to be a value greater than 0.
*/
int32_t fd;
};
#define NVVSE_IOCTL_CMDID_UNMAP_MEMBUF _IOWR(TEGRA_NVVSE_IOC_MAGIC, \
TEGRA_NVVSE_CMDID_UNMAP_MEMBUF, \
struct tegra_nvvse_unmap_membuf_ctl)
/**
* brief Holds IVC databse
*/