The following table shows the contents of a 4-entry TLB. Entry-ID Valid VA Page Modified Protection PA Page 1 2 3 4 1 0 1 1 140 40 200 280 1 0 1 0 RW RX RO RW 30 34 32 31 Under what scenarios would entry 2’s valid bit be set to zero?What happens when an instruction writes to VA page 30? When would a soft ware managed TLB be faster than a hardware managed TLB?What happens when an instruction writes to VA page 200?
The following table shows the contents of a 4-entry TLB. Entry-ID Valid VA Page Modified Protection PA Page 1 2 3 4 1 0 1 1 140 40 200 280 1 0 1 0 RW RX RO RW 30 34 32 31 Under what scenarios would entry 2’s valid bit be set to zero?What happens when an instruction writes to VA page 30? When would a soft ware managed TLB be faster than a hardware managed TLB?What happens when an instruction writes to VA page 200?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The following table shows the contents of a 4-entry TLB.
| Entry-ID | Valid | VA Page | Modified | Protection | PA Page |
|
1 2 3 4 |
1 0 1 1 |
140 40 200 280 |
1 0 1 0 |
RW RX RO RW |
30 34 32 31 |
Under what scenarios would entry 2’s valid bit be set to zero?
What happens when an instruction writes to VA page 30? When would a soft ware managed TLB be faster than a hardware managed TLB?
What happens when an instruction writes to VA page 200?
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