From: manish regmi <regmi.manish@gmail.com>
To: Ankit Jain <ankitjain1580@yahoo.com>
Cc: linux-newbie@vger.kernel.org
Subject: Re: physical or virtual address
Date: Fri, 8 Oct 2004 11:43:37 +0545 [thread overview]
Message-ID: <652016d3041007225816aa4351@mail.gmail.com> (raw)
In-Reply-To: <20041008054742.42568.qmail@web52901.mail.yahoo.com>
On Fri, 8 Oct 2004 06:47:42 +0100 (BST), Ankit Jain
<ankitjain1580@yahoo.com> wrote:
> in this file i have a doubt if this is the physical
> address
> it basically looks from 00000000-ffffffff
>
> which is 0-4294967295
>
> i feel after that there is a mapping for physical
> address
>
> if somebody can explain me this
>
> thanks
>
> ankit
> [ankit@Ankit ankit]$ cat //proc/iomem
> 00000000-0009fbff : System RAM
> 0009fc00-0009ffff : reserved
> 000a0000-000bffff : Video RAM area
> 000c0000-000c7fff : Video ROM
> 000f0000-000fffff : System ROM
> 00100000-077effff : System RAM
> 00100000-00250d5b : Kernel code
> 00250d5c-0034ac43 : Kernel data
> 077f0000-077f2fff : ACPI Non-volatile Storage
> 077f3000-077fffff : ACPI Tables
> 10000000-100003ff : Intel Corp. 82801DB ICH4 IDE
> e0000000-e7ffffff : Intel Corp. 82845G/GL
> [Brookdale-G] Chipset Integrated Graphics Device
> e8000000-ebffffff : Intel Corp. 82845G/GL
> [Brookdale-G] Chipset Host Bridge
> ed000000-ed0003ff : MYSON Technology Inc SURECOM
> EP-320X-S 100/10M Ethernet PCI Adapter
> ed000000-ed0003ff :
> ??????\x7f??a??N??<??G??R??P??g??q??x??p??v??m??V??Dm?
> O?J?Q?M?!2Z\x11<\x04\x17)\x03\x15ee000000-ee07ffff : Intel Corp.
> 82845G/GL [Brookdale-G] Chipset Integrated Graphics
> Device
> ee080000-ee0803ff : Intel Corp. 82801DB USB EHCI
> Controller
> ee080000-ee0803ff : ehci-hcd
> ee081000-ee0811ff : Intel Corp. 82801DB AC'97 Audio
> ee081000-ee0811ff : ich_audio MMBAR
> ee082000-ee0820ff : Intel Corp. 82801DB AC'97 Audio
> ee082000-ee0820ff : ich_audio MBBAR
> fec00000-ffffffff : reserved
>
>
Of course that is a physical address.
Remember Adress(physical address) does not necessarily mean RAM. It
can be Ram, ROM, and I/O mapped to Physical Memory ( i mean memory
mapped I/O)
regards manish
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prev parent reply other threads:[~2004-10-08 5:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-08 5:47 physical or virtual address Ankit Jain
2004-10-08 5:47 ` Ankit Jain
2004-10-08 5:58 ` manish regmi [this message]
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