From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Chris Wright <chrisw@sous-sol.org>
Cc: Matthew Wilcox <matthew@wil.cx>, Alex Chiang <achiang@hp.com>,
jbarnes@virtuousgeek.org, linux-arch@vger.kernel.org,
Kyle McMartin <kyle@mcmartin.ca>, Tony Luck <tony.luck@intel.com>,
Russell King <linux@arm.linux.org.uk>,
Arnd Bergmann <arnd@arndb.de>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Jeff Dike <jdike@addtoit.com>,
linux-kernel@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
David Howells <dhowells@redhat.com>,
Paul Mundt <lethal@linux-sh.org>,
Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
Ingo Molnar <mingo@redhat.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] PCI: remove pcibios_scan_all_fns()
Date: Tue, 23 Jun 2009 12:22:09 +1000 [thread overview]
Message-ID: <1245723729.4017.31.camel@pasglop> (raw)
In-Reply-To: <20090623014322.GA6729@sequoia.sous-sol.org>
On Mon, 2009-06-22 at 18:43 -0700, Chris Wright wrote:
> > I'd like to know what the KVM / Xen / ... people think about this.
> > I don't know if they rely on function 5 being able to show up out of
> > the blue.
>
> KVM does not rely on this. Typically a multi-function device's BDF
> gets
> remapped between host and guest (usually becoming a single function,
> function 0).
I'm surprised you don't hit problems with some devices/drivers here,
I have distinct memories of seeing such things as drivers who need
to know their own function number reliably.
Cheers,
Ben.
next prev parent reply other threads:[~2009-06-23 2:23 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-22 14:08 [PATCH] PCI: remove pcibios_scan_all_fns() Alex Chiang
2009-06-22 14:21 ` Kyle McMartin
2009-06-22 14:26 ` Ralf Baechle
2009-06-22 14:36 ` Matthew Wilcox
2009-06-22 14:34 ` Matthew Wilcox
2009-06-22 18:20 ` Jeremy Fitzhardinge
2009-06-22 18:30 ` Matthew Wilcox
2009-06-22 23:40 ` Benjamin Herrenschmidt
2009-06-23 19:08 ` Matthew Wilcox
2009-06-23 20:34 ` Jeremy Fitzhardinge
2009-06-23 20:56 ` Matthew Wilcox
2009-06-23 21:49 ` Benjamin Herrenschmidt
2009-06-23 22:24 ` Jeremy Fitzhardinge
2009-06-23 22:41 ` Benjamin Herrenschmidt
2009-06-23 22:53 ` Jeremy Fitzhardinge
2009-06-24 0:02 ` Benjamin Herrenschmidt
2009-06-24 10:30 ` Ian Campbell
2009-06-24 10:30 ` Ian Campbell
2009-06-23 21:47 ` Benjamin Herrenschmidt
2009-06-22 23:55 ` Jeremy Fitzhardinge
2009-06-23 0:33 ` Benjamin Herrenschmidt
2009-06-23 1:43 ` Chris Wright
2009-06-23 2:22 ` Benjamin Herrenschmidt [this message]
2009-06-23 18:29 ` Avi Kivity
2009-06-22 15:29 ` Russell King - ARM Linux
2009-06-22 16:53 ` Arnd Bergmann
2009-06-23 16:43 ` Paul Mundt
2009-06-29 20:33 ` Jesse Barnes
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