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