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680177
2007 Apr 18
0
[RFC, PATCH 13/24] i386 Vmi system header
Fairly straightforward code motion in system.h into the sub-arch
layer. Affected functionality include control register accessors,
which are virtualizable but with great overhead due to the #GP
cost; wbinvd, and most importantly, halt and interrupt control,
which is non-virtualizable.
Since read_cr4_safe can never fault on a VMI kernel (P5+ processor
is required for VMI), we can omit the fault