From: "H. Peter Anvin" <hpa@zytor.com>
To: Nguyen Anh Quynh <aquynh@gmail.com>
Cc: kvm-devel@lists.sourceforge.net
Subject: Re: Extboot Option ROM rewritten in C - v3
Date: Thu, 17 Apr 2008 02:00:29 -0400 [thread overview]
Message-ID: <4806E77D.7070100@zytor.com> (raw)
In-Reply-To: <9cde8bff0804161830j74ad21f9r7fb1bc5b1e7ab28e@mail.gmail.com>
> + .globl linux_boot
> +linux_boot:
> + cli
> + cld
> + mov $0x9000, %ax
> + mov %ax, %ds
> + mov %ax, %es
> + mov %ax, %fs
> + mov %ax, %gs
> + mov %ax, %ss
> + mov $0x8ffe, %sp
> + ljmp $0x9000 + 0x20, $0
The hard use of segment 9000 is really highly unfortunate for bzImage,
since it restricts its heap more than necessary. I suggest following
the patterns used by the (new) Qemu loader.
-hpa
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next prev parent reply other threads:[~2008-04-17 6:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-17 1:30 Extboot Option ROM rewritten in C - v3 Nguyen Anh Quynh
2008-04-17 5:58 ` H. Peter Anvin
2008-04-18 10:57 ` Nguyen Anh Quynh
2008-04-17 6:00 ` H. Peter Anvin [this message]
2008-04-18 11:00 ` Nguyen Anh Quynh
2008-04-18 12:21 ` H. Peter Anvin
2008-04-18 13:19 ` Anthony Liguori
2008-04-18 12:24 ` H. Peter Anvin
2008-04-18 13:19 ` Anthony Liguori
2008-04-18 13:31 ` H. Peter Anvin
2008-04-18 13:56 ` Nguyen Anh Quynh
2008-04-18 14:51 ` Anthony Liguori
2008-04-18 14:50 ` H. Peter Anvin
2008-04-18 15:02 ` Nguyen Anh Quynh
2008-04-18 15:19 ` Anthony Liguori
2008-04-17 7:36 ` Carlo Marcelo Arenas Belon
2008-04-18 11:01 ` Nguyen Anh Quynh
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