发明名称 |
CONTROLLING OPERATION OF A RUN-TIME INSTRUMENTATION FACILITY FROM A LESSER-PRIVILEGED STATE |
摘要 |
Embodiments of the invention relate to enabling and disabling execution of a run-time instrumentation facility. An instruction for execution by the processor in a lesser privileged state is fetched by the processor. It is determined, by the processor, that the run-time instrumentation facility permits execution of the instruction in the lesser-privileged state and that controls associated with the run-time instrumentation facility are valid. The run-time instrumentation facility is disabled based on the instruction being a run-time instrumentation facility off (RIOFF) instruction. The disabling includes updating a bit in a program status word (PSW) of the processor to indicate that run-time instrumentation data should not be captured by the processor. The run-time instrumentation facility is enabled based on the instruction being a run-time instrumentation facility on (RION) instruction. The enabling includes updating the bit in the PSW to indicate that run-time instrumentation data should be captured by the processor.
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申请公布号 |
US2013246770(A1) |
申请公布日期 |
2013.09.19 |
申请号 |
US201213422546 |
申请日期 |
2012.03.16 |
申请人 |
FARRELL MARK S.;GAINEY, JR. CHARLES W.;MITRAN MARCEL;SHUM CHUNG-LUNG K.;SLEGEL TIMOTHY J.;SMITH BRIAN L.;STOODLEY KEVIN A.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FARRELL MARK S.;GAINEY, JR. CHARLES W.;MITRAN MARCEL;SHUM CHUNG-LUNG K.;SLEGEL TIMOTHY J.;SMITH BRIAN L.;STOODLEY KEVIN A. |
分类号 |
G06F9/30 |
主分类号 |
G06F9/30 |
代理机构 |
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代理人 |
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地址 |
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