Date: Fri, 9 Sep 2011 08:09:06 -0400 From: Andrew Duane <aduane@juniper.net> To: Peter Wemm <peter@wemm.org>, Peter Grehan <grehan@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org>, "freebsd-arch@freebsd.org" <freebsd-arch@freebsd.org> Subject: RE: Soliciting opinions on an extension of the bootinfo structure Message-ID: <AC6674AB7BC78549BB231821ABF7A9AEB748D6C093@EMBX01-WF.jnpr.net> In-Reply-To: <CAGE5yCr1x2NB1pHYg6qPQPxFvWYA8bMus3gqM3nYkPCVbEpv8w@mail.gmail.com> References: <AC6674AB7BC78549BB231821ABF7A9AEB748F9A329@EMBX01-WF.jnpr.net> <4E6940D3.4070801@freebsd.org> <CAGE5yCr1x2NB1pHYg6qPQPxFvWYA8bMus3gqM3nYkPCVbEpv8w@mail.gmail.com>
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That's correct. This is actually part of a larger effort to open up the MIP= S code to a range of new bootstraps. Some bootstraps use the bootinfo facil= ity extensively. It's an easy way to pass some simple information to the ke= rnel without the clutter of metadata and other such things. =A0................................... Andrew Duane Juniper Networks o=A0=A0=A0+1 978 589 0551 m=A0 +1 603-770-7088 aduane@juniper.net =A0 -----Original Message----- From: Peter Wemm [mailto:peter@wemm.org]=20 Sent: Thursday, September 08, 2011 6:48 PM To: Peter Grehan Cc: Andrew Duane; freebsd-hackers@freebsd.org; freebsd-arch@freebsd.org Subject: Re: Soliciting opinions on an extension of the bootinfo structure On Thu, Sep 8, 2011 at 3:25 PM, Peter Grehan <grehan@freebsd.org> wrote: >> I'm proposing an extension framework for the bootinfo structure used >> to pass information from the bootstrap/loader to the kernel. Although >> I'm only proposing this for the MIPS bootinfo, it's completely >> applicable to any of them. >> >> What I propose is adding an optional platform extension structure: >> bootinfo_pext, surrounded by #ifdef BOOTINFO_PEXT > > =A0Any reason not to put the vendor bits into another piece of loader met= adata > ? That seems the extensible way to add additional info from the loader, > rather than extending bootinfo (as was the case pre-loader days). > > later, It sounds like they're not using loader, which is probably a reasonable thing for their environment. --=20 Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com; KI6FJV "All of this is for nothing if we don't go to the stars" - JMS/B5 "If Java had true garbage collection, most programs would delete themselves upon execution." -- Robert Sewell
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