Re: [Xen-devel] Using mini-os ioremap()

[Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>]

Matthew Fioravante, le Thu 06 Jan 2011 12:00:04 -0500, a écrit :
>  My box doesn't have more than 4GB. I've tried this on 32 bit and 64 bit.

How much does it have? Could you post the memory map recorded in xm
dmesg?

> I tried nuking the mfn_is_ram check. When I do that the call returns a 
> virtual memory address but when I try to read and write to it, it 
> appears to act just like a normal page of memory and not the device.

Mmm... I wonder how that can be possible if your address is really an IO
area.

> Does anyone know offhand of a mini-os project that either tested the 
> ioremap() call or actually does some memory mapped io operations?

It was implemeted by Rolf Neugebauer <rolf.neugebauer@xxxxxxxxxxxxx>,
Cc-ed.

Samuel

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel