International business machines corporation (20240202127). SIDEBAND INSTRUCTION ADDRESS TRANSLATION simplified abstract

SIDEBAND INSTRUCTION ADDRESS TRANSLATION

Organization Name

international business machines corporation

Inventor(s)

Bryan Lloyd of Austin TX (US)

David A. Hrusecky of Cedar Park TX (US)

Richard J. Eickemeyer of Rochester MN (US)

Mohit Karve of Austin TX (US)

Dung Q. Nguyen of Austin TX (US)

Nicholas R. Orzol of Austin TX (US)

Sheldon Bernard Levenstein of Austin TX (US)

Naga P. Gorti of Austin TX (US)

SIDEBAND INSTRUCTION ADDRESS TRANSLATION - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240202127 titled 'SIDEBAND INSTRUCTION ADDRESS TRANSLATION

Simplified Explanation

The patent application describes a method for translating instruction addresses within a processor using a separate table called the Instruction Effective-to-Real Address Table (I-ERAT).

• The method involves managing the I-ERAT, which has a smaller storage capacity than the main ERAT, to improve address translation efficiency.
• When an instruction address is found in the I-ERAT, the translated address is sent directly to the instruction cache, bypassing the processor's arbitrator.
• If there is a miss in the I-ERAT, an address translation request is sent to the main ERAT through the arbitrator, and the translation result is written back to the I-ERAT.

Key Features and Innovation

• Use of a separate I-ERAT table for instruction address translation.
• Directly sending translated addresses to the instruction cache upon I-ERAT hit.
• Improved efficiency by bypassing the processor's arbitrator for I-ERAT hits.

Potential Applications

This technology can be applied in various processors and computer systems where efficient instruction address translation is crucial for performance optimization.

Problems Solved

• Enhances address translation efficiency within a processor.
• Reduces latency in accessing instruction addresses.
• Improves overall system performance by streamlining the translation process.

Benefits

• Faster access to translated instruction addresses.
• Reduced processing overhead for address translation.
• Enhanced performance of processors and computer systems.

Commercial Applications

Optimizing address translation in processors can benefit industries such as computer hardware manufacturing, data centers, and cloud computing services by improving system performance and efficiency.

Questions about Sideband Instruction Address Translation

How does the use of the I-ERAT table improve address translation efficiency within a processor?

The I-ERAT table allows for quicker access to translated instruction addresses, reducing latency and improving overall system performance.

What are the potential implications of bypassing the processor's arbitrator for I-ERAT hits?

By bypassing the arbitrator, the method can streamline the address translation process, leading to faster access to instruction addresses and improved system efficiency.

Original Abstract Submitted

embodiments relate to sideband instruction address translation. according to an aspect, a computer-implemented method includes managing, within a processor, an instruction effective-to-real-address table (i-erat) separate from a main erat, where the i-erat has a smaller storage capacity than the main erat. the method also includes indicating an i-erat hit based on determining that an instruction address for an instruction cache is stored in the i-erat, bypassing an arbitrator within the processor and sending a translated address from the i-erat to the instruction cache based on detecting the i-erat hit, and sending an address translation request through the arbitrator to the main erat based on an i-erat miss and writing a translation result of the main erat to the i-erat.