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Date: Sun, 21 Jan 2018 18:51:29 +0100
From: Borislav Petkov <bp@alien8.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
	David Woodhouse <dwmw@amazon.co.uk>, arjan@linux.intel.com,
	tglx@linutronix.de, karahmed@amazon.de, x86@kernel.org,
	linux-kernel@vger.kernel.org, tim.c.chen@linux.intel.com,
	peterz@infradead.org, pbonzini@redhat.com, ak@linux.intel.com,
	torvalds@linux-foundation.org, gregkh@linux-foundation.org
Subject: Re: [PATCH 2/4] x86/cpufeatures: Add AMD feature bits for Prediction
 Command
Message-ID: <20180121175129.mfyafhlbbgyyogmc@pd.tnic>
References: <1516449813-7654-1-git-send-email-dwmw@amazon.co.uk>
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 <20180121121638.jpwyk4npxjcgqzar@pd.tnic>
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On Sun, Jan 21, 2018 at 11:36:32AM -0600, Tom Lendacky wrote:
> >>> +#define X86_FEATURE_AMD_PRED_CMD	( 7*32+17) /* Prediction Command MSR
> >>> (AMD) */
> 
> You should use the existing 0x80000008 EBX entry for this.

Right, and is the bit called "PredCmd" or so or simply "IBPB" ?

-- 
Regards/Gruss,
    Boris.

Good mailing practices for 400: avoid top-posting and trim the reply.