From: Andi Kleen <andi@firstfloor.org>
To: Mike Frysinger <vapier@gentoo.org>
Cc: Andi Kleen <andi@firstfloor.org>,
tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: asm-x86/msr.h for sanitized headers: clean it or punt it
Date: Mon, 31 Dec 2007 17:36:35 +0100 [thread overview]
Message-ID: <20071231163635.GA15298@one.firstfloor.org> (raw)
In-Reply-To: <200712311033.34489.vapier@gentoo.org>
> can you enumerate which functions need to actually go to userspace then ? the
rdtscl/rdtscll/rdpmc primarily
> __KERNEL__ markings are a crapshoot at the moment. you must also be jumping
> through hoops in order to use the header in the first place since the vanilla
> one wont compile out of the box.
At least the 64bit one or older 32bit one works without hoops. Agreed that the
paravirt changes destroyed it on newer 32bit though. That's an unfortunate
regression.
-Andi
next prev parent reply other threads:[~2007-12-31 16:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-31 5:45 asm-x86/msr.h for sanitized headers: clean it or punt it Mike Frysinger
2007-12-31 5:51 ` H. Peter Anvin
2007-12-31 12:26 ` Andi Kleen
2007-12-31 15:33 ` Mike Frysinger
2007-12-31 16:36 ` Andi Kleen [this message]
2007-12-31 18:10 ` Mike Frysinger
2007-12-31 18:15 ` H. Peter Anvin
2007-12-31 18:49 ` Mike Frysinger
2008-01-01 15:47 ` Ingo Molnar
2008-01-02 1:20 ` Adrian Bunk
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