Re: getting rid of iopl(3) in XFree86

Itai Nahshon (nahshon@actcom.co.il)
Mon, 30 Mar 1998 01:37:38 +0300


MOLNAR Ingo wrote:
>
> The plan to get rid of iopl(3):
>
> 1) extend our current (limited) ioperm() range (ports 0-1024) to ports
> 0-65535. We couldnt do this so far, due to the outragous size of the IO
> bitmap (two pages per thread). Gabriel Paulbert has found a nice trick to
> get it done in a 'delayed' fashion. (his hack has inspired the clone()
> io-bitmap hack as well). The latest softswitch patches implement Gabriel's
> trick, i hope we can get them integrated into 2.3. [I'm also ready to
> pester XFree86 people witch patches if such a feature went into the kernel
> ;)]
>

Sounds very good.

Remmeber that XFree86 will NEVER make a release just for
Linux-2.3.x if it is not compatible with 2.2.x. It may be
a good idea to put the hooks in 2.2 (but enable them
only in 2.3).

Itai

-- 
Itai Nahshon   nahshon@actcom.co.il
        Also   nahshon@vnet.ibm.com

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