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[IA64] Let Xen handle identity mapping for xenolinux region 7
authorawilliam@xenbuild2.aw <awilliam@xenbuild2.aw>
Thu, 18 Jan 2007 02:48:02 +0000 (19:48 -0700)
committerawilliam@xenbuild2.aw <awilliam@xenbuild2.aw>
Thu, 18 Jan 2007 02:48:02 +0000 (19:48 -0700)
commit6014962afead9d7bd9b02367bbaf320b988dc20e
tree155d97d755982800e5418fc8d35bb4504931dd1etree | snapshot
parent08577542ec8d0d0e6353e779bfd20a7c36ececa7commit | diff
[IA64] Let Xen handle identity mapping for xenolinux region 7

During kernel build in dom0, half of the resulting slow reflections
are alt DTLB misses.  Since we know Linux identity maps region 7,
Xen can handle the miss itself.  This reduces the system time component
of the kernel build by nearly 15%.

Signed-off-by: Anthony Xu <anthony.xu@intel.com>
xen/arch/ia64/xen/vcpu.c diff | blob | history
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