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Bug #7828

closed

sysenter and sysexit dis should be allowed in 64-bit x86

Added by Robert Mustacchi over 6 years ago. Updated over 6 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Robert Mustacchi
Category:
lib - userland libraries
Start date:
2017-01-30
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
Gerrit CR:
External Bug:

Description

The sysenter and sysexit instructions are currently restricted to being disassembled as valid only in 32-bit x86 modes. However, while AMD never added sysenter and sysexit to their 64-bit processors, Intel has. Therefore we should consider these valid.

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 #1

Updated by Electric Monk over 6 years ago

  • Status changed from New to Closed

git commit 959b2dfd39979fe8a9a315a52741d009eb168822

commit  959b2dfd39979fe8a9a315a52741d009eb168822
Author: Robert Mustacchi <rm@joyent.com>
Date:   2017-03-01T19:16:02.000Z

    7825 want avx dis tests
    7826 PCLMULQDQ psuedo-ops aren't properly described in dis
    7827 dis tests for f16c, movbe, cpuid, msr, tsc, fence instrs
    7828 sysenter and sysexit dis should be allowed in 64-bit x86
    Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
    Approved by: Richard Lowe <richlowe@richlowe.net>

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