[Xen-ia64-devel][PATCH] Bugfix, Sometime SMP Windows boot fail

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

Sometime SMP Windows cann't boot, the root cause is guest timer
interrupt 
is lost.

This patch fixes following issues.
1. Windows use different way to sync itc.
2. Previously when Guest timer fires and guest ITV is masked, XEN will
 desert this Guest timer interrupt. It is not correct for windows,
windows may
 expect this timer interrupt.
3. Windows may use different way to set timer in some situations.
   Windows first sets itm ( which may be smaller than current itc), and
   then sets itc ( which is samller than itm).
   XEN can support this way to set timer.


Signed-off-by, Anthony Xu < anthony.xu@xxxxxxxxx >

Attachment: smp_windows_boot.patch
Description: smp_windows_boot.patch

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