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From: Andy Lutomirski <luto@kernel.org>
To: X86 ML <x86@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: kvm list <kvm@vger.kernel.org>,
	xen-devel <Xen-devel@lists.xen.org>,
	Borislav Petkov <bp@alien8.de>
Subject: Does __KERNEL_DS serve a purpose?
Date: Thu, 7 Apr 2016 17:24:54 -0700	[thread overview]
Message-ID: <CALCETrWHHUsd=VXUXQvdeODFFBEDr9EUQQTJ3oWbtO8aHgd3Xw@mail.gmail.com> (raw)

I can't see any reason that we need the __KERNEL_DS segment at all --
I think that everything that uses __KERNEL_DS could use __USER_DS
instead.  Am I missing anything?  This has been bugging me for a
while.

I mulled over this a bit when trying to understand the sysret_ss_attrs
bug and then forgot about it.

--Andy

             reply	other threads:[~2016-04-08  0:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-08  0:24 Andy Lutomirski [this message]
2016-04-08  8:01 ` [Xen-devel] Does __KERNEL_DS serve a purpose? Andrew Cooper
2016-04-08  8:01   ` Andrew Cooper
2016-04-08 16:00   ` Andy Lutomirski
2016-04-08 16:00   ` [Xen-devel] " Andy Lutomirski
2016-04-08 17:12     ` Paolo Bonzini
2016-04-08 22:06       ` Andy Lutomirski
2016-04-08 22:06       ` [Xen-devel] " Andy Lutomirski
2016-04-08 22:32         ` Andrew Cooper
2016-04-08 22:32         ` Andrew Cooper
2016-04-08 17:12     ` Paolo Bonzini
2016-04-08  0:24 Andy Lutomirski

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