PCI function number for SATA AHCI controller

Posted by Look Alterno on Programmers See other posts from Programmers or by Look Alterno
Published on 2012-10-30T16:08:08Z Indexed on 2012/10/30 17:18 UTC
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I'm debugging a second stage boot loader for a PC with SATA AHCI controller. I'm able to enumerate the PCI bus and find the hard disk. So far, so good. Now, lspci in my notebook (Dell Inspiron 1525) show me:

-[0000:00]-+-1f.0  Intel Corporation 82801HEM (ICH8M) LPC Interface Controller
           +-1f.1  Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller
           +-1f.2  Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller
           \-1f.3  Intel Corporation 82801H (ICH8 Family) SMBus Controller

My question: Is SATA AHCI Controller always function 2 in any PC? If not, how I found?

I don't pretend to be general; booting my notebook will be good enough, without compromise further refinements.

PCI function number for SATA AHCI controller

Posted by Look Alterno on Stack Overflow See other posts from Stack Overflow or by Look Alterno
Published on 2012-10-30T16:08:08Z Indexed on 2012/10/30 23:01 UTC
Read the original article Hit count: 184

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Hardware

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PC

I'm debugging a second stage boot loader for a PC with SATA AHCI controller. I'm able to enumerate the PCI bus and find the hard disk. So far, so good. Now, lspci in my notebook (Dell Inspiron 1525) show me:

-[0000:00]-+-1f.0  Intel Corporation 82801HEM (ICH8M) LPC Interface Controller
           +-1f.1  Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller
           +-1f.2  Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller
           \-1f.3  Intel Corporation 82801H (ICH8 Family) SMBus Controller

My question: Is SATA AHCI Controller always function 2 in any PC? If not, how I found?

I don't pretend to be general; booting my notebook will be good enough, without compromise further refinements.

Developer IT