Talk:Task state segment
Add topicLatest comment: 16 years ago by 69.73.30.18 in topic Use of TSS in Linux
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[edit]I/O Port Permissions
[..]if the program has permission to access a port, a "0" is stored at the corresponding bit index, and if the program does not have permission, a "1" is stored there.[...]If the bit in the I/O port permissions bitmap is set, the program is allowed access to this port, and the instruction is allowed to execute. If the bit is clear, the program does not have access and the processor generates a General Protection Fault.[...]
äh, hä? ^^
Use of TSS in Linux
[edit]Technically, Linux also creates a second TSS for handling double fault exceptions. But maybe this detail would confuse matters? -strictlymike 69.73.30.18 (talk) —Preceding undated comment added 16:20, 28 January 2010 (UTC).