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Date: Fri, 10 Nov 2000 15:33:54 -0500
From: Brian Gerst <bgerst@didntduck.org>
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To: davej@suse.de
CC: "H. Peter Anvin" <hpa@transmeta.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [Fwd: CPU detection revamp (Request for comments)]
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davej@suse.de wrote:
> 
> On Fri, 10 Nov 2000, Brian Gerst wrote:
> 
> > > features        : fpu vme de pse tsc msr mce cx8 pge mmx syscall 3dnow
> >
> > The K6's don't support sysenter/sysexit.
> 
> The K6 datasheets suggests otherwise.
> Some models seem to have sysenter/sysexit, whilst others have
> syscall/sysret. No model seems to have both.
> 
> The datasheets are somewhat confusing, as it doesn't mention bit 10
> at all, just an oversized box for bit 11.

The Athlons support sysenter and syscall, but the K6's only support
syscall.  The earlier version of syscall (bit 10) is undocumented by
AMD.

--

				Brian Gerst
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