From: hpa@zytor.com (H. Peter Anvin)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses
Date: Mon, 20 Jun 2011 09:44:25 -0700 [thread overview]
Message-ID: <4DFF78E9.7010202@zytor.com> (raw)
In-Reply-To: <20110620164045.GB10815@elte.hu>
On 06/20/2011 09:40 AM, Ingo Molnar wrote:
>
> There is no reason why they couldnt use a .config option or a boot
> option to get their weird stuff going, which weird stuff also happens
> to be useful.
>
> What i'm somewhat against is having this enabled by default for weird
> stuff that also happens to be harmful - and the fact that it never
> worked over 4G physical gives us the perfect opportunity to do just
> that.
>
I'm concerned about that notion. I think it's fine to modularize
/dev/mem, but what we're seeing is that Red Hat and all kinds of other
entities are putting in ad hoc versions of /dev/mem, but of course doing
so incorrectly.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
next prev parent reply other threads:[~2011-06-20 16:44 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-17 8:38 [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses Petr Tesarik
2011-06-17 8:46 ` [PATCH 07/10] arm: change valid_phys_addr_range's @addr param to phys_addr_t Petr Tesarik
2011-06-17 9:30 ` [PATCH 00/10] Enhance /dev/mem to allow read/write of arbitrary physical addresses Ingo Molnar
2011-06-17 9:41 ` Russell King - ARM Linux
2011-06-17 9:55 ` Petr Tesarik
2011-06-20 2:42 ` Américo Wang
2011-06-27 7:46 ` Petr Tesarik
2011-06-19 23:02 ` Ryan Mallon
2011-06-19 23:44 ` H. Peter Anvin
2011-06-20 7:41 ` Ingo Molnar
2011-06-20 15:59 ` H. Peter Anvin
2011-06-20 16:40 ` Ingo Molnar
2011-06-20 16:44 ` H. Peter Anvin [this message]
2011-06-21 6:55 ` Srivatsa Vaddagiri
2011-06-20 0:42 ` Matthew Wilcox
2011-06-20 0:46 ` Ryan Mallon
2011-06-20 0:52 ` Matthew Wilcox
2011-06-20 1:02 ` Ryan Mallon
2011-06-20 7:31 ` Ingo Molnar
2011-06-20 8:03 ` Ryan Mallon
2011-06-20 17:10 ` Ray Lee
2011-06-29 9:05 ` Petr Tesarik
2011-07-01 12:58 ` Ingo Molnar
2011-07-01 13:43 ` Petr Tesarik
2011-07-01 13:47 ` Christoph Hellwig
2011-07-01 14:37 ` Ingo Molnar
2011-07-01 14:41 ` Christoph Hellwig
2011-07-01 14:46 ` Ingo Molnar
2011-07-01 14:54 ` Petr Tesarik
2011-07-01 15:36 ` Ingo Molnar
2011-07-01 16:00 ` H. Peter Anvin
2011-07-01 16:13 ` Ingo Molnar
2011-07-01 19:34 ` Petr Tesarik
2011-07-01 19:56 ` Ingo Molnar
2011-07-01 20:44 ` Petr Tesarik
2011-07-03 19:46 ` Ingo Molnar
2011-07-05 17:49 ` Matthew Garrett
2011-07-05 17:56 ` H. Peter Anvin
2011-07-05 22:34 ` H. Peter Anvin
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