linux-kernel - Re: [PATCH 2/7] x86/vm86: Preserve orig

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Message-ID: <CALCETrWy6w2S4yuWujFOHm8=sn4v9y+aAJ0xyWXqbN6iOdz9Qg@mail.gmail.com>
Date:	Thu, 16 Jul 2015 08:57:52 -0700
From:	Andy Lutomirski <luto@...capital.net>
To:	Brian Gerst <brgerst@...il.com>
Cc:	X86 ML <x86@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 2/7] x86/vm86: Preserve orig_ax

On Thu, Jul 16, 2015 at 4:46 AM, Brian Gerst <brgerst@...il.com> wrote:
> There is no legitimate reason for usermode to modify the orig_ax field on
> entry to vm86 mode, so copy it from the 32-bit regs.

Looks good.

--Andy
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