linux-kernel - Re: [PATCH 05/26] x86, pkey: add PKRU xsave fields and data structure(s)

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Date:	Tue, 22 Sep 2015 21:53:08 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Dave Hansen <dave@...1.net>
cc:	x86@...nel.org, linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 05/26] x86, pkey: add PKRU xsave fields and data
 structure(s)

On Wed, 16 Sep 2015, Dave Hansen wrote:
> --- a/arch/x86/kernel/fpu/xstate.c~pkeys-03-xsave	2015-09-16 10:48:13.340060126 -0700
> +++ b/arch/x86/kernel/fpu/xstate.c	2015-09-16 10:48:13.344060307 -0700
> @@ -23,6 +23,8 @@ static const char *xfeature_names[] =
>  	"AVX-512 opmask"		,
>  	"AVX-512 Hi256"			,
>  	"AVX-512 ZMM_Hi256"		,
> +	"unknown xstate feature (8)"	,

It's not unknown. It's PT, right?

> +	"Protection Keys User registers",
>  	"unknown xstate feature"	,
>  };

Thanks,

	tglx
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