From: David Woodhouse <dwmw2@infradead.org>
To: Steven Noonan <steven@uplinklabs.net>
Cc: Arjan van de Ven <arjan@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
karahmed@amazon.de, Linux-X86 <x86@kernel.org>,
Linux Kernel mailing List <linux-kernel@vger.kernel.org>,
tim.c.chen@linux.intel.com, Borislav Petkov <bp@alien8.de>,
Peter Zijlstra <peterz@infradead.org>,
Paolo Bonzini <pbonzini@redhat.com>,
ak@linux.intel.com,
Linus Torvalds <torvalds@linux-foundation.org>,
gregkh@linux-foundation.org
Subject: Re: [PATCH 1/4] x86/cpufeatures: Add Intel feature bits for Speculation Control
Date: Sat, 20 Jan 2018 21:57:00 +0000 [thread overview]
Message-ID: <1516485420.9814.20.camel@infradead.org> (raw)
In-Reply-To: <CAKbGBLi3vixq2aMzmhLY2NysWqc8qo7BoFysFcsm9TEdQdCErA@mail.gmail.com>
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On Sat, 2018-01-20 at 13:51 -0800, Steven Noonan wrote:
>
> > +#define X86_FEATURE_STIPB (18*32+27) /* Speculation
> Control with STIPB (Intel) */
>
> Is this correct? I thought the acronym was "STIBP", i.e.
> "Single-Thread Indrect Branch Prediction"? If so, then you've got the
> B and P swapped.
Likewise in the later MSR bits patch where I actually have both 'STIPB'
and 'Single Thread Indirect Branch Predictors' on the *same* line.
Fixed in both now; thanks.
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next prev parent reply other threads:[~2018-01-20 21:57 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-20 12:03 [PATCH 0/4] Basic Speculation Control feature support David Woodhouse
2018-01-20 12:03 ` [PATCH 1/4] x86/cpufeatures: Add Intel feature bits for Speculation Control David Woodhouse
2018-01-20 20:29 ` Borislav Petkov
2018-01-20 21:51 ` Steven Noonan
2018-01-20 21:57 ` David Woodhouse [this message]
2018-01-20 12:03 ` [PATCH 2/4] x86/cpufeatures: Add AMD feature bits for Prediction Command David Woodhouse
2018-01-21 12:16 ` Borislav Petkov
2018-01-21 12:22 ` David Woodhouse
2018-01-21 12:34 ` Borislav Petkov
2018-01-21 12:41 ` David Woodhouse
2018-01-21 17:36 ` Tom Lendacky
2018-01-21 17:51 ` Borislav Petkov
2018-01-20 12:03 ` [PATCH 3/4] x86/msr: Add definitions for new speculation control MSRs David Woodhouse
2018-01-20 12:03 ` [PATCH 4/4] x86/pti: Do not enable PTI on fixed Intel processors David Woodhouse
2018-01-20 20:08 ` Thomas Gleixner
2018-01-20 20:13 ` Thomas Gleixner
2018-01-20 20:13 ` Woodhouse, David
2018-01-20 20:13 ` Woodhouse, David
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