Arjan van de Ven wrote:
On Thu, 31 Jan 2008 17:53:04 +0100 (CET)
Jan Engelhardt <[EMAIL PROTECTED]> wrote:
On Jan 30 2008 12:48, Arjan van de Ven wrote:
Subject: [PATCH] x86: introduce /dev/mem restrictions with a config
option
This patch introduces a restriction on /dev/mem: Only non-memory can
be read or written unless the newly introduced config option is set.
Would not it be nicer to add a /dev/pcimem that implements the given
restrictive semantics?
Maybe it's just wishful thinking, but I am dreaming of an
unprivileged X, and /dev/pcimem (owned by an 'x11' user or so) would
be a step in that direction.
/dev/pcimem is wrong; X can use the exact bar in sysfs already.
This is more for compatibility with legacy X
Legacy X, and non-BAR X memory (originally ISA, of course; now probably
more often "stolen system memory").
-hpa
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