[Xen-ia64-devel] Re: [PATCH][RFC][IA64] Accelerate IDE PIO on HVM/IA64

[Kouya SHIMURA <kouya@xxxxxxxxxxxxxx>]

Hi, Alan

Multimedia was out of my thought since my target is IA64. 
What a gorgeous music player it is! :)

For handling inb/inw/inl, I already support inw/inl except inb.
inb is processed with the previous mechanism.
All I did is to move ide_data_(read|write)[wl] functions in Qemu 
into the hypervisor.

Thanks,
Kouya

Alan writes:
 > You want a bit more if you ever begin to support multimedia or READ/WRITE
 > LONG, that can get you up to about 2500 bytes per "sector".
 > 
 > You also need to watch that you handle inb/inw/inl on the data port
 > properly as devices can support 32bit I/O on the data port which is not
 > the same as a 32bit I/O usually is (it does not return the value of port,
 > port +1, port + 2, port +3). Or you can report that 32bit I/O is not
 > supported in the drive identify page..
 > 
 > Alan
 > 
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 > Xen-devel mailing list
 > Xen-devel@xxxxxxxxxxxxxxxxxxx
 > http://lists.xensource.com/xen-devel


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