linux-kernel - [RFC PATCH 0/2] hw-breakpoints allocation constraints updates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1271113280-10521-1-git-send-regression-fweisbec@gmail.com>
Date:	Tue, 13 Apr 2010 01:01:18 +0200
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Will Deacon <will.deacon@....com>,
	Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
	"K . Prasad" <prasad@...ux.vnet.ibm.com>,
	Paul Mundt <lethal@...ux-sh.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>
Subject: [RFC PATCH 0/2] hw-breakpoints allocation constraints updates


Hi,

These patches tend to extend the breakpoint allocation constraints to
be more non-x86 friendly.

It can separate the data and instruction breakpoint space and
handle address ranges or other kind of tricky things that makes
a breakpoint use more than one address register.

There is still one kind of constraint it can't handle, something
I've found on ARMv7 implementation: linking an breakpoint to a
watchpoint. But if this needs arises, I will be glad to add that
support.

Beware, it's only compile-tested for now.

Tell me what you think.

Thanks.


Frederic Weisbecker (2):
  hw-breakpoints: Separate constraint space for data and instruction
    breakpoints
  hw-breakpoints: Handle breakpoint weight in allocation constraints

 arch/Kconfig                  |   11 ++++
 arch/x86/Kconfig              |    1 +
 include/linux/hw_breakpoint.h |    9 ++-
 kernel/hw_breakpoint.c        |  129 ++++++++++++++++++++++++++++++-----------
 4 files changed, 112 insertions(+), 38 deletions(-)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/