PROCESSOR ACTIVITY INSTRUMENTATION PROCESSING FOR CRYPTOGRAPHIC INSTRUCTIONS
卷宗概要
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
Louis P. GOMES; Bruce Conrad GIAMEI
IPC 分类
CPC 分类
An instruction to perform cryptographic processing is executed. Executing the instruction includes performing a plurality of operations to generate a cryptographic result. Based on performing at least multiple operations of the plurality of operations, an access exception condition for a storage location used by an instrumentation counter is detected. Based on detecting the access exception condition, execution of the instruction is interrupted. The instruction is re-executed to obtain access to the instrumentation counter. The re-executing the instruction starts from where execution was interrupted and includes updating the instrumentation counter, based on the storage location used for the instrumentation counter being validated.
原文（中文）
An instruction to perform cryptographic processing is executed. Executing the instruction includes performing a plurality of operations to generate a cryptographic result. Based on performing at least multiple operations of the plurality of operations, an access exception condition for a storage location used by an instrumentation counter is detected. Based on detecting the access exception condition, execution of the instruction is interrupted. The instruction is re-executed to obtain access to the instrumentation counter. The re-executing the instruction starts from where execution was interrupted and includes updating the instrumentation counter, based on the storage location used for the instrumentation counter being validated.