Technologies for filtering memory access transactions received from one or more I/O devices

    公开(公告)号:US11373013B2

    公开(公告)日:2022-06-28

    申请号:US16234871

    申请日:2018-12-28

    Abstract: Technologies for secure I/O include a compute device having a processor, a memory, an input/output (I/O) device, and a filter logic. The filter logic is configured to receive a first key identifier from the processor, wherein the first key identifier is indicative of a shared memory range includes a shared key identifier range to be used for untrusted I/O devices and receive a transaction from the I/O device, wherein the transaction includes a second key identifier and a trust device ID indicator associated with the I/O device. The filter logic is further configured to determine whether the transaction is asserted with the trust device ID indicator indicative of whether the I/O device is assigned to a trust domain and determine, in response to a determination that the transaction is not asserted with the trust device ID indicator, whether the second key identifier matches the first key identifier.

    DISAGGREGATED COMPUTING FOR DISTRIBUTED CONFIDENTIAL COMPUTING ENVIRONMENT

    公开(公告)号:US20220100580A1

    公开(公告)日:2022-03-31

    申请号:US17526097

    申请日:2021-11-15

    Abstract: An apparatus to facilitate disaggregated computing for a distributed confidential computing environment is disclosed. The apparatus includes one or more processors to: provide a remote GPU middleware layer to act as a proxy for an application stack on a client platform separate from the apparatus; communicate, by the remote GPU middleware layer, with a kernel mode driver of the one or more processors to cause the host memory to be allocated for command buffers and data structures received from the client platform for consumption by a command streamer of a remote GPU of the apparatus; and invoke, by the remote GPU middleware layer, the kernel mode driver to submit a workload generated by the application stack, the workload submitted for processing by the remote GPU using the command buffers and the data structures allocated in the host memory as directed by the command streamer.

    Protecting data transfer between a secure application and networked devices

    公开(公告)号:US12149513B2

    公开(公告)日:2024-11-19

    申请号:US18453970

    申请日:2023-08-22

    Abstract: An apparatus to facilitate protecting data transfer between a secure application and networked devices is disclosed. The apparatus includes a processor to provide a trusted execution environment (TEE) to run an application, wherein the processor is to utilize the application in the TEE to: generate encrypted data of the application; copy the encrypted data to a local shared buffer; interface with a source network interface controller (NIC) to initiate a copy over a network of the encrypted data from the local shared buffer to a remote buffer of a remote platform, wherein the source NIC operates outside of a trust boundary of the TEE; and communicate at least one message with the remote platform to indicate that the encrypted data is available and to enable the remote platform to verify integrity of the encrypted data, wherein the one least one message comprises an authentication tag.

    Disaggregated computing for distributed confidential computing environment

    公开(公告)号:US12033005B2

    公开(公告)日:2024-07-09

    申请号:US17532562

    申请日:2021-11-22

    CPC classification number: G06F9/5083 G06F9/3814 G06F9/5027 G06T1/20 G06T1/60

    Abstract: An apparatus to facilitate disaggregated computing for a distributed confidential computing environment is disclosed. The apparatus includes a programmable integrated circuit (IC) comprising secure device manager (SDM) hardware circuitry to: receive a tenant bitstream of a tenant and a tenant use policy for utilization of the programmable IC via the tenant bitstream, wherein the tenant use policy is cryptographically bound to the tenant bitstream by a cloud service provider (CSP) authorizing entity and signed with a signature of the CSP authorizing entity; in response to successfully verifying the signature, extract the tenant use policy to provide to a policy manager of the programmable IC for verification; in response to the policy manager verifying the tenant bitstream based on the tenant use policy, configure a partial reconfiguration (PR) region of the programmable IC using the tenant bitstream; and associate a slot ID of the PR region with the tenant use policy.

    TECHNOLOGIES FOR FILTERING MEMORY ACCESS TRANSACTIONS RECEIVED FROM ONE OR MORE I/O DEVICES

    公开(公告)号:US20230297725A1

    公开(公告)日:2023-09-21

    申请号:US18200543

    申请日:2023-05-22

    CPC classification number: G06F21/78 G06F21/44 G06F21/85

    Abstract: Technologies for secure I/O include a compute device having a processor, a memory, an input/output (I/O) device, and a filter logic. The filter logic is configured to receive a first key identifier from the processor, wherein the first key identifier is indicative of a shared memory range includes a shared key identifier range to be used for untrusted I/O devices and receive a transaction from the I/O device, wherein the transaction includes a second key identifier and a trust device ID indicator associated with the I/O device. The filter logic is further configured to determine whether the transaction is asserted with the trust device ID indicator indicative of whether the I/O device is assigned to a trust domain and determine, in response to a determination that the transaction is not asserted with the trust device ID indicator, whether the second key identifier matches the first key identifier.

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