From: "David S. Miller" <davem@redhat.com>
To: John Newlin <jnewlin@tsoft.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Cache aliasing
Date: 25 Feb 2003 19:59:02 -0800 [thread overview]
Message-ID: <1046231942.3373.7.camel@rth.ninka.net> (raw)
In-Reply-To: <006a01c2dc9e$e4f685a0$0b01a8c0@john1>
On Mon, 2003-02-24 at 23:24, John Newlin wrote:
> Would it make more sense to just always ensure that your
> virtual and physical pages had matching "color" bits?
No, it's actually very difficult to solve the problem this
way.
The reason being that there is always a fixed "kernel virtual
color" every physical page has. So essentially, if you colored
userspace, you could only put into user virtual address with
color X only pages that also have kernel virtual color X.
next prev parent reply other threads:[~2003-02-26 3:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-25 7:24 John Newlin
2003-02-26 3:59 ` David S. Miller [this message]
2006-03-16 20:38 Cache Aliasing Chris Zankel
2006-03-16 22:39 ` David S. Miller
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