Title:
MODIFYING RUN-TIME-INSTRUMENTATION CONTROLS FROM A LESSER-PRIVILEGED STATE
Document Type and Number:
WIPO Patent Application WO/2013/136703
Kind Code:
A1
Abstract:
Embodiments of the invention relate to modifying run-time-instrumentation controls (MRIC) from a lesser-privileged state. The MRIC instruction is fetched. The MRIC instruction includes the address of a run-time-instrumentation control block (RICCB). The RICCB is fetched based on the address included in the MRIC instruction. The RICCB includes values for modifying a subset of the processor's run-time-instrumentation controls. The subset of run-time-instrumentation controls includes a runtime instrumentation program buffer current address (RCA) of a runtime instrumentation program buffer (RIB) location. The RIB holds run-time-instrumentation information of the events recognized by the processor during program execution. The values of the RICCB are loaded into the run-time-instrumentation controls. Event information is provided to the RIB based on the values that were loaded in the run-time-instrumentation control.
Inventors:
FARRELL MARK S (US)
GAINEY JR CHARLES W (US)
SHUM CHUNG-LUNG KEVIN (US)
SLEGEL TIMOTHY J (US)
GAINEY JR CHARLES W (US)
SHUM CHUNG-LUNG KEVIN (US)
SLEGEL TIMOTHY J (US)
Application Number:
PCT/JP2013/001262
Publication Date:
September 19, 2013
Filing Date:
March 01, 2013
Export Citation:
Assignee:
IBM (US)
IBM JAPAN (JP)
IBM JAPAN (JP)
International Classes:
G06F11/34
Foreign References:
| JP2010086520A | 2010-04-15 | |||
| US20100088771A1 | 2010-04-08 | |||
| US20050034107A1 | 2005-02-10 |
Other References:
See also references of EP 2807562A4
Attorney, Agent or Firm:
UENO, Takeshi et al. (IBM Japan Ltd., NBF TOYOSU CANAL FRONT Bldg., 6-52, Toyosu 5-chome, Koto-k, Tokyo 11, JP)
Download PDF: