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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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535.54.03
This commit is contained in:
Andy Ritger
@@ -1455,12 +1455,12 @@ NV_STATUS nvUvmInterfacePagingChannelPushStream(UvmGpuPagingChannelHandle channe
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concurrently with the same UvmCslContext parameter in different threads. The caller must
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guarantee this exclusion.
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* nvUvmInterfaceCslLogDeviceEncryption
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* nvUvmInterfaceCslRotateIv
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* nvUvmInterfaceCslEncrypt
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* nvUvmInterfaceCslDecrypt
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* nvUvmInterfaceCslSign
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* nvUvmInterfaceCslQueryMessagePool
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* nvUvmInterfaceCslIncrementIv
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*/
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/*******************************************************************************
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@@ -1495,62 +1495,17 @@ NV_STATUS nvUvmInterfaceCslInitContext(UvmCslContext *uvmCslContext,
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*/
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void nvUvmInterfaceDeinitCslContext(UvmCslContext *uvmCslContext);
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/*******************************************************************************
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nvUvmInterfaceCslLogDeviceEncryption
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Returns an IV that can be later used in the nvUvmInterfaceCslEncrypt
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method. The IV contains a "freshness bit" which value is set by this method
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and subsequently dirtied by nvUvmInterfaceCslEncrypt to prevent
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non-malicious reuse of the IV.
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See "CSL Interface and Locking" for locking requirements.
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This function does not perform dynamic memory allocation.
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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encryptIv[OUT] - Parameter that is stored before a successful
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device encryption. It is used as an input to
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nvUvmInterfaceCslEncrypt.
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Error codes:
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NV_ERR_INSUFFICIENT_RESOURCES - New IV would cause a counter to overflow.
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*/
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NV_STATUS nvUvmInterfaceCslAcquireEncryptionIv(UvmCslContext *uvmCslContext,
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UvmCslIv *encryptIv);
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/*******************************************************************************
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nvUvmInterfaceCslLogDeviceEncryption
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Logs and checks information about device encryption.
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See "CSL Interface and Locking" for locking requirements.
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This function does not perform dynamic memory allocation.
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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decryptIv[OUT] - Parameter that is stored before a successful
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device encryption. It is used as an input to
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nvUvmInterfaceCslDecrypt.
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Error codes:
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NV_ERR_INSUFFICIENT_RESOURCES - The device encryption would cause a counter
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to overflow.
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*/
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NV_STATUS nvUvmInterfaceCslLogDeviceEncryption(UvmCslContext *uvmCslContext,
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UvmCslIv *decryptIv);
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/*******************************************************************************
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nvUvmInterfaceCslRotateIv
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Rotates the IV for a given channel and direction.
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Rotates the IV for a given channel and operation.
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This function will rotate the IV on both the CPU and the GPU.
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Outstanding messages that have been encrypted by the GPU should first be
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decrypted before calling this function with direction equal to
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UVM_CSL_DIR_GPU_TO_CPU. Similiarly, outstanding messages that have been
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decrypted before calling this function with operation equal to
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UVM_CSL_OPERATION_DECRYPT. Similarly, outstanding messages that have been
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encrypted by the CPU should first be decrypted before calling this function
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with direction equal to UVM_CSL_DIR_CPU_TO_GPU. For a given direction
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with operation equal to UVM_CSL_OPERATION_ENCRYPT. For a given operation
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the channel must be idle before calling this function. This function can be
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called regardless of the value of the IV's message counter.
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@@ -1559,17 +1514,17 @@ NV_STATUS nvUvmInterfaceCslLogDeviceEncryption(UvmCslContext *uvmCslContext,
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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direction[IN] - Either
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- UVM_CSL_DIR_CPU_TO_GPU
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- UVM_CSL_DIR_GPU_TO_CPU
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operation[IN] - Either
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- UVM_CSL_OPERATION_ENCRYPT
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- UVM_CSL_OPERATION_DECRYPT
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Error codes:
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NV_ERR_INSUFFICIENT_RESOURCES - The rotate operation would cause a counter
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to overflow.
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NV_ERR_INVALID_ARGUMENT - Invalid value for direction.
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NV_ERR_INVALID_ARGUMENT - Invalid value for operation.
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*/
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NV_STATUS nvUvmInterfaceCslRotateIv(UvmCslContext *uvmCslContext,
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UvmCslDirection direction);
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UvmCslOperation operation);
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/*******************************************************************************
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nvUvmInterfaceCslEncrypt
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@@ -1580,7 +1535,7 @@ NV_STATUS nvUvmInterfaceCslRotateIv(UvmCslContext *uvmCslContext,
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this function produces undefined behavior. Performance is typically
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maximized when the input and output buffers are 16-byte aligned. This is
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natural alignment for AES block.
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The encryptIV can be obtained from nvUvmInterfaceCslAcquireEncryptionIv.
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The encryptIV can be obtained from nvUvmInterfaceCslIncrementIv.
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However, it is optional. If it is NULL, the next IV in line will be used.
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See "CSL Interface and Locking" for locking requirements.
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@@ -1623,12 +1578,18 @@ NV_STATUS nvUvmInterfaceCslEncrypt(UvmCslContext *uvmCslContext,
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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bufferSize[IN] - Size of the input and output buffers in
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units of bytes. Value can range from 1 byte
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to (2^32) - 1 bytes.
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decryptIv[IN] - Parameter given by nvUvmInterfaceCslLogDeviceEncryption.
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bufferSize[IN] - Size of the input and output buffers in units of bytes.
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Value can range from 1 byte to (2^32) - 1 bytes.
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decryptIv[IN] - IV used to decrypt the ciphertext. Its value can either be given by
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nvUvmInterfaceCslIncrementIv, or, if NULL, the CSL context's
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internal counter is used.
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inputBuffer[IN] - Address of ciphertext input buffer.
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outputBuffer[OUT] - Address of plaintext output buffer.
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addAuthData[IN] - Address of the plaintext additional authenticated data used to
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calculate the authentication tag. Can be NULL.
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addAuthDataSize[IN] - Size of the additional authenticated data in units of bytes.
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Value can range from 1 byte to (2^32) - 1 bytes.
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This parameter is ignored if addAuthData is NULL.
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authTagBuffer[IN] - Address of authentication tag buffer.
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Its size is UVM_CSL_CRYPT_AUTH_TAG_SIZE_BYTES.
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@@ -1643,6 +1604,8 @@ NV_STATUS nvUvmInterfaceCslDecrypt(UvmCslContext *uvmCslContext,
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NvU8 const *inputBuffer,
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UvmCslIv const *decryptIv,
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NvU8 *outputBuffer,
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NvU8 const *addAuthData,
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NvU32 addAuthDataSize,
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NvU8 const *authTagBuffer);
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/*******************************************************************************
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@@ -1673,7 +1636,6 @@ NV_STATUS nvUvmInterfaceCslSign(UvmCslContext *uvmCslContext,
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NvU8 const *inputBuffer,
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NvU8 *authTagBuffer);
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/*******************************************************************************
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nvUvmInterfaceCslQueryMessagePool
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@@ -1684,14 +1646,45 @@ NV_STATUS nvUvmInterfaceCslSign(UvmCslContext *uvmCslContext,
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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direction[IN] - Either UVM_CSL_DIR_CPU_TO_GPU or UVM_CSL_DIR_GPU_TO_CPU.
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operation[IN] - Either UVM_CSL_OPERATION_ENCRYPT or UVM_CSL_OPERATION_DECRYPT.
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messageNum[OUT] - Number of messages left before overflow.
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Error codes:
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NV_ERR_INVALID_ARGUMENT - The value of the direction parameter is illegal.
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NV_ERR_INVALID_ARGUMENT - The value of the operation parameter is illegal.
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*/
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NV_STATUS nvUvmInterfaceCslQueryMessagePool(UvmCslContext *uvmCslContext,
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UvmCslDirection direction,
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UvmCslOperation operation,
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NvU64 *messageNum);
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/*******************************************************************************
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nvUvmInterfaceCslIncrementIv
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Increments the message counter by the specified amount.
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If iv is non-NULL then the incremented value is returned.
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If operation is UVM_CSL_OPERATION_ENCRYPT then the returned IV's "freshness" bit is set and
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can be used in nvUvmInterfaceCslEncrypt. If operation is UVM_CSL_OPERATION_DECRYPT then
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the returned IV can be used in nvUvmInterfaceCslDecrypt.
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See "CSL Interface and Locking" for locking requirements.
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This function does not perform dynamic memory allocation.
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Arguments:
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uvmCslContext[IN/OUT] - The CSL context.
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operation[IN] - Either
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- UVM_CSL_OPERATION_ENCRYPT
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- UVM_CSL_OPERATION_DECRYPT
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increment[IN] - The amount by which the IV is incremented. Can be 0.
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iv[out] - If non-NULL, a buffer to store the incremented IV.
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Error codes:
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NV_ERR_INVALID_ARGUMENT - The value of the operation parameter is illegal.
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NV_ERR_INSUFFICIENT_RESOURCES - Incrementing the message counter would result
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in an overflow.
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*/
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NV_STATUS nvUvmInterfaceCslIncrementIv(UvmCslContext *uvmCslContext,
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UvmCslOperation operation,
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NvU64 increment,
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UvmCslIv *iv);
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#endif // _NV_UVM_INTERFACE_H_
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