K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2009-07-18T01:50:05.266545Z
K 7
svn:log
V 559
An addendum to r195649, "Add support to the virtual memory system for
configuring machine-dependent memory attributes...":

Don't set the memory attribute for a "real" page that is allocated to
a device object in vm_page_alloc().  It is a pointless act, because
the device pager replaces this "real" page with a "fake" page and sets
the memory attribute on that "fake" page.

Eliminate pointless code from pmap_cache_bits() on amd64.

Employ the "Self Snoop" feature supported by some x86 processors to
avoid cache flushes in the pmap.

Approved by:	re (kib)

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