linux-kernel - Re: [PATCH Bugfix v2 2/4] x86/xsaves: Define and use user_xstate

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Message-ID: <55383B09.3080703@intel.com>
Date:	Wed, 22 Apr 2015 17:21:29 -0700
From:	Dave Hansen <dave.hansen@...el.com>
To:	"Yu, Fenghua" <fenghua.yu@...el.com>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Mallick, Asit K" <asit.k.mallick@...el.com>,
	"Williamson, Glenn P" <glenn.p.williamson@...el.com>
CC:	linux-kernel <linux-kernel@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH Bugfix v2 2/4] x86/xsaves: Define and use user_xstate_size
 for xstate size in signal context

On 04/22/2015 05:06 PM, Yu, Fenghua wrote:
> Xsave->xsave_hdr.xstate_bv is equal to pcntxt_mask (see
> setup_init_fpu_buf()).

This is going to be a long thread.  But, let's take it a step at a time.

Do you agree that this earlier statement is incorrect?
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