From: Jan Kiszka <jan.kiszka@siemens.com>
To: Anthony Liguori <aliguori@us.ibm.com>
Cc: kvm <kvm@vger.kernel.org>
Subject: extboot: Purpose of cmd value
Date: Thu, 18 Feb 2010 15:01:02 +0100 [thread overview]
Message-ID: <4B7D481E.2090308@siemens.com> (raw)
Hi Anthony,
I have to fix extboot for non-KVM usage which means pushing its
variables to writable RAM (probably some spare INT vector(s) in the
BASIC area).
In that process, I stumbled over the cmd value passed to extboot_init,
then stored in qemu_malloc'ed memory, and finally reported to the guest
side via port 0x404. It's constant so far, always 1. So there is quite a
bit unused code and data on both sides. Can we drop that?
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next reply other threads:[~2010-02-18 14:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-18 14:01 Jan Kiszka [this message]
2010-02-18 14:07 ` extboot: Purpose of cmd value Anthony Liguori
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