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] [day] [month] [year] [list]
Message-ID: <1347045657.26695.64.camel@sbsiddha-desk.sc.intel.com>
Date:	Fri, 07 Sep 2012 12:20:56 -0700
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	mingo@...nel.org, torvalds@...ux-foundation.org,
	andreas.herrmann3@....com, bp@...64.org, robert.richter@....com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] x86, fpu: enable eagerfpu by default for xsaveopt

On Fri, 2012-09-07 at 11:43 -0700, H. Peter Anvin wrote:
> On 09/07/2012 11:31 AM, Suresh Siddha wrote:
> >
> > diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
> > index 6273099..b21bcbd 100644
> > --- a/Documentation/kernel-parameters.txt
> > +++ b/Documentation/kernel-parameters.txt
> > @@ -1835,7 +1835,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
> >   			enabling legacy floating-point and sse state.
> >
> >   	eagerfpu=	[X86]
> > -			on	enable eager fpu restore
> > +			on	enable eager fpu restore (default for xsaveopt)
> >   			off	disable eager fpu restore
> >
> 
> Should we make this a tristate (on, off, default/auto)?

Intention is to automatically enable it for xsaveopt with out any
explicit boot parameters (for the advantages I mentioned in the previous
changelogs).

thanks,
suresh


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ