Re: amd64 64-bit work starting

[Hiten Pandya <hmp@xxxxxxxxxxxxx>]

Matthew Dillon wrote:

>     I am starting on the amd64 64 bit work now.  I'm guess it will
>     take all of February to do, possibly longer since I am going 
>     on a mini-vacation this coming week (but I'll have connectivity).
>
>     Most of the initial work is going to be precursor and infrastructure
>     work.  e.g. building the cross compiler, cleaning up various programs,
>     system configuration files, and so forth.  I intend to write the 
>     majority of the kernel code from scratch but will definitely be using
>     the FreeBSD work as a template for a good chunk of it.  I expect,
>     however, that the mmu topology and code will wind up being completely
>     different in DFly.
>
>     The rough sequence of events:
>
> 	* build support and cross compilation work
> 	* kernel build
> 	* boot 64-bit kernel almost to single user
> 	* 32 bit userland support
> 	* boot kernel to single user
> 	* basic device driver and filesystem testing
> 	* boot kernel to multi user
> 	(fully working system at this point)
> 	* everyone w/ 64 bit boxes start banging on it, fixing additional
> 	  device drivers, get 64 bit buildworlds working, and so forth.

	This will make the busdma work a priority too, Me and possibly
	Joerg will start banging on bringing bus_dma'ing of the device
	drivers into DFly, so by the time you get it to a single user
	state, quite a few of the drivers will be in good shape.

		-- Hiten (hmp@xxxxxxxxxxxxx)