linux-kernel - Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 29 Apr 2007 23:25:53 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Rusty Russell <rusty@...tcorp.com.au>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Jeff Garzik <jeff@...zik.org>, Andi Kleen <ak@...e.de>,
	patches@...-64.org, Vivek Goyal <vgoyal@...ibm.com>,
	linux-kernel@...r.kernel.org,
	virtualization <virtualization@...ts.linux-foundation.org>
Subject: Re: [patches] [PATCH] [21/22] x86_64: Extend bzImage protocol for relocatable bzImage

Rusty Russell <rusty@...tcorp.com.au> writes:

> On Sun, 2007-04-29 at 21:38 -0700, H. Peter Anvin wrote:
>> Rusty Russell wrote:
>> > 
>> > Dammit, Eric, you spend a lot of time using words like "insane" where
>> > you mean we didn't do everything all at once.
>> > 
>> > It's *not* clear that using %esi is sane, but nothing in the current
>> > code prevents that.
>> 
>> Why not?
>
> (I assume you mean why isn't it clear?)
>
> Because VMI uses the presence of a ROM to indicate it's not native.  KVM
> uses a magic MSR IIRC.

Reasonable, if you don't mid a little hardware emulation.

> I think it makes sense for lguest to change over, tho.  Patches welcome
> 8)

Sure.

Peter do we want to use the bootloader byte and assign lguest it's own
bootloader type or do we want to add another field specific to 
paravirtualized environments?

Eric
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/