From: Ralf Baechle <ralf@oss.sgi.com>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: "Kevin D. Kissell" <kevink@mips.com>,
linux-mips@oss.sgi.com, Carsten Langgaard <carstenl@mips.com>,
Michael Shmulevich <michaels@jungo.com>
Subject: Re: User applications
Date: Mon, 8 Jan 2001 14:05:06 -0200 [thread overview]
Message-ID: <20010108140506.B886@bacchus.dhis.org> (raw)
In-Reply-To: <Pine.GSO.3.96.1010108151854.23234G-100000@delta.ds2.pg.gda.pl>; from macro@ds2.pg.gda.pl on Mon, Jan 08, 2001 at 04:07:31PM +0100
On Mon, Jan 08, 2001 at 04:07:31PM +0100, Maciej W. Rozycki wrote:
> The only case caches need to be synchronized is modifying some code. The
> ptrace syscall does it automatically for text writes -- it's needed and
> used by gdb to set breakpoints, for example. For other code there is
> cacheflush() which allows you to flush a cache range relevant to a given
> virtual address (I see it's not implemented very well at the moment).
>
> Obviously, you don't want to allow unprivileged users to flush caches as
> a whole as it could lead to a DoS.
You obviously want to allow partial cache flushes or trampolines don't work
and flushing the entire cache can be constructed from that.
Ralf
next prev parent reply other threads:[~2001-01-08 16:15 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-08 9:40 User applications Carsten Langgaard
2001-01-08 13:30 ` Michael Shmulevich
2001-01-08 13:52 ` Carsten Langgaard
2001-01-08 14:14 ` Kevin D. Kissell
2001-01-08 14:14 ` Kevin D. Kissell
2001-01-08 14:16 ` Carsten Langgaard
2001-01-08 16:03 ` Ralf Baechle
2001-01-08 15:07 ` Maciej W. Rozycki
2001-01-08 15:21 ` Kevin D. Kissell
2001-01-08 15:21 ` Kevin D. Kissell
2001-01-08 15:40 ` Maciej W. Rozycki
2001-01-08 16:27 ` Ralf Baechle
2001-01-08 16:43 ` Maciej W. Rozycki
2001-01-08 16:41 ` Ralf Baechle
2001-01-08 16:05 ` Ralf Baechle [this message]
2001-01-08 16:23 ` Carsten Langgaard
2001-01-08 16:30 ` Ralf Baechle
2001-01-08 16:50 ` Carsten Langgaard
2001-01-08 17:56 ` Maciej W. Rozycki
2001-01-08 16:40 ` Maciej W. Rozycki
2001-01-08 17:42 ` Ralf Baechle
2001-01-08 17:58 ` Maciej W. Rozycki
2001-01-09 11:49 ` Michael Shmulevich
2001-01-09 12:15 ` Geert Uytterhoeven
2001-01-09 12:17 ` Alan Cox
2001-01-09 12:17 ` Alan Cox
2001-01-09 13:00 ` Maciej W. Rozycki
2001-01-08 16:34 ` Maciej W. Rozycki
2001-01-08 14:16 ` Maciej W. Rozycki
2001-01-08 16:25 ` Ralf Baechle
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20010108140506.B886@bacchus.dhis.org \
--to=ralf@oss.sgi.com \
--cc=carstenl@mips.com \
--cc=kevink@mips.com \
--cc=linux-mips@oss.sgi.com \
--cc=macro@ds2.pg.gda.pl \
--cc=michaels@jungo.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.