[Bug dynamic-link/27346] x86: PTWRITE feature check is missing

hjl.tools at gmail dot com sourceware-bugzilla@sourceware.org
Thu Mar 18 15:05:03 GMT 2021


https://sourceware.org/bugzilla/show_bug.cgi?id=27346

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
   Target Milestone|---                         |2.34
         Resolution|---                         |FIXED

--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed on master by

commit 5ab25c88758810269607a066fcac399e29863510
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Feb 4 10:39:34 2021 -0800

    x86: Add PTWRITE feature detection [BZ #27346]

    1. Add CPUID_INDEX_14_ECX_0 for CPUID leaf 0x14 to detect PTWRITE feature
    in EBX of CPUID leaf 0x14 with ECX == 0.
    2. Add PTWRITE detection to CPU feature tests.
    3. Add 2 static CPU feature tests.

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