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: <20071113000853.GA13341@ldl.fc.hp.com>
Date:	Mon, 12 Nov 2007 17:08:53 -0700
From:	Alex Chiang <achiang@...com>
To:	gregkh@...e.de, kristen.c.accardi@...el.com, lenb@...nel.org
Cc:	achiang@...com, matthew@....cx, richard.jones2@...com,
	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz,
	pcihpd-discuss@...ts.sourceforge.net, linux-acpi@...r.kernel.org
Subject: [PATCH 0/5][RFC] Physical PCI slot objects

Hello,

[this patch series touches a few subsystems; hopefully I got all
the right maintainers]

Recently, Matthew Wilcox sent out the following mail about PCI
slots:

  http://marc.info/?l=linux-pci&m=119432330418980&w=2

The following patch series is a rough first cut at implementing
the ideas he outlined, namely, that PCI slots are physical
objects that we care about, independent of their hotplug
capabilities.

We introduce a struct pci_slot as a first-class citizen, and turn
hotplug_slot into a subsidiary structure. A brief glimpse at the
potential for cleanup is given, as we modify the existing hotplug
drivers and remove the multiple get_address() methods. Certainly
more cleanup can be done with this new structure.

Additionally, we introduce an ACPI PCI slot driver, which will
detect all physical PCI slots in the system (as described by
ACPI). De-coupling the notion of a physical slot from its hotplug
capability allows users to understand the physical geography of
their machines, whether their slots are hotpluggable or not.

This patch series builds heavily on Willy's prior work (with a
bit of the typical refresh needed when aiming at the moving
target of the kernel). The ACPI PCI slot driver is new.

I have tested this series on both ia64 (hp rx6600) and x86 (hp
dl380g). On ia64, system firmware provides _SUN methods for the
PCI slots and we get entries in /sys/bus/pci/slots/. On my x86
machine, firmware didn't seem to provide a _SUN, so we don't get
any entries in /sys/bus/pci/slots/, but nothing really bad
happens either. ;)

Comments/feedback are appreciated.

Thanks.

/ac

-
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/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ