From: greg.freemyer@gmail.com (Greg Freemyer)
To: kernelnewbies@lists.kernelnewbies.org
Subject: hard disk dirver
Date: Wed, 6 Feb 2013 13:20:13 -0500 [thread overview]
Message-ID: <CAGpXXZKEMUxgDguCCuDUgqk1ScVK4hErza57SQHshOQnpJqmYg@mail.gmail.com> (raw)
In-Reply-To: <9573.1360173037@turing-police.cc.vt.edu>
On Wed, Feb 6, 2013 at 12:50 PM, <Valdis.Kletnieks@vt.edu> wrote:
> On Wed, 06 Feb 2013 13:21:17 +0800, horseriver said:
> > At booting stage,kernel need to detect the hard device before mount
> it,
> > does this work need pci's surport?
>
> That depends. Is the controller for the hard drive a PCI-based
> controller? On
> most x86-based boxes, it is (and I'm not sure it's even possible to build
> an
> x86 kernel that doesn't have PCI as a =y in the config). However, very old
> units may still have ISA based disk controllers, and other archs may have
> other
> I/O buses.
Most new MB's have a SATA controller directly on the MB connected directly
to either the North or South bridge (I don't know which).
I don't think any PCI is support needed to talk to the boot disk.
Greg
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next prev parent reply other threads:[~2013-02-06 18:20 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-05 18:53 hard disk dirver horseriver
2013-02-06 4:51 ` Valdis.Kletnieks at vt.edu
2013-02-05 21:37 ` horseriver
[not found] ` <CAHnt0GW9kQFei0wU+3WahtPaqMX-VRCwedXBGY2dbEwhQ_7J8w@mail.gmail.com>
2013-02-06 5:21 ` horseriver
2013-02-06 17:50 ` Valdis.Kletnieks at vt.edu
2013-02-06 18:20 ` Greg Freemyer [this message]
2013-02-06 20:28 ` Valdis.Kletnieks at vt.edu
2013-02-07 1:24 ` Peter Teoh
2013-02-06 7:35 ` Valdis.Kletnieks at vt.edu
2013-02-06 4:30 ` horseriver
2013-02-06 17:50 ` Valdis.Kletnieks at vt.edu
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