linux-kernel - RE: [PATCH v2 0/6] Enable LKGS instruction

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 11 Oct 2022 03:51:20 +0000
From:   "Li, Xin3" <xin3.li@...el.com>
To:     "H. Peter Anvin" <hpa@...or.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "x86@...nel.org" <x86@...nel.org>
CC:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "peterz@...radead.org" <peterz@...radead.org>
Subject: RE: [PATCH v2 0/6] Enable LKGS instruction

> > * place fixup code into code section "__ex_table" instead of the obsoleted
> >    "fixup" section.
> >
> 
> Correction: __ex_table is NOT a code section (scared me there for a second...).

Right, my bad.

> With the new fixup handling code EX_TYPE_ZERO_REG takes care of all the
> work, and there simply is no need for any fixup code at all (the exception fixup
> is fully data-driven.)
> 
> So I would say "use EX_TYPE_ZERO_REG instead of fixup code in the obsolete
> .fixup code section."
> 
> 	-hpa