[PATCH] Allow drivers to map individual 4k pages to userspace
Roland Dreier
rdreier at cisco.com
Wed Apr 4 14:07:12 EST 2007
> It's somewhat architected. I doubt there will ever be a processor that
> can have an eHCA and doesn't support that trick. The thing is, eHCA is
> platform specific, so the remap_4k_pfn would have to be called by driver
> specific code, but that's not a problem since that driver will only ever
> be used on those platforms that support that call.
If I'm going off on something irrelevant, just tell me. But is there
a chance that you would want to build a kernel that can boot on both a
platform that has eHCA, and also on some other platform that cannot
support remap_4k_pfn? If so does this approach cause problems?
- R.
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