From: prasadjoshi124@gmail.com (Prasad Joshi)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Reading the VGA BIOS
Date: Sat, 25 Dec 2010 15:47:29 +0000 [thread overview]
Message-ID: <AANLkTikV4JiUk7B_yO39ZWaOW2MAbAs07FBJWm1UvXv8@mail.gmail.com> (raw)
Hello All,
Is there any way I can read the BIOS of the VGA card that is not being used?
I have a two VGA cards, one onboard and one PCIe Nvidia card. The
monitor is attached to the Nvidia card and the other card, is not
being used.
I can read the BIOS of the VGA card that is being used using /dev/mem,
reading 64K from 0xC0000. This will read the BIOS of the Nvidia card.
Similarly is there any way to read the BIOS of the other VGA card? I
want to pass-through the other VGA card to the Virtual Machine.
XEN has the pass-through support, they seem to be reading the BIOS
from /dev/mem.
But would not it attach the same graphics card to VM that is being
used by the host machine, thus host machine will no longer have the
display device.
Thanks and Regards,
Prasad
reply other threads:[~2010-12-25 15:47 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AANLkTikV4JiUk7B_yO39ZWaOW2MAbAs07FBJWm1UvXv8@mail.gmail.com \
--to=prasadjoshi124@gmail.com \
--cc=kernelnewbies@lists.kernelnewbies.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).