RE: [Xen-ia64-devel] Keyboard and Mouse are disable in Xen0 terminal

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Isaku Yamahata [mailto:yamahata@xxxxxxxxxxxxx]
>Sent: 2006年6月20日 10:47
>Xenlinux/ia64 has quite different concept about mmu-(para)virtulization
>and dma-paravirtulization from xenLinux/x86's (for now).
>However swiotlb and pci-dma-xen are shared by them.
>The sharing is the root cause, so creating IA64 specific swiotlb and
>pci-dma-xen is the solution.
>Cleaning up xenLinux/IA64 paravirtualization for Linux upstream merge
>is also another middle term goal.
>Maybe it means to create a new system type something like mach-xen.
>I think these clean up can/should be done at the same time.

Yes, subarch is the way.

>
>
>It seems that you'd like to change the current Xen/IA64
>mmu-fullvirtualization.
>Do you have any other motivation? performance?
>

All base on performance data. If people see a performance bottleneck 
and require higher, you may need to improve current style more or less,
such as exposing p2m table to xenlinux. Or else it's OK with some 
clearance to be done as you mentioned above.

Thanks,
Kevin

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