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[Xen-ia64-devel][PATCH] Fix Windows Timer stop issue.
| To: | "xen-ia64-devel" <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel][PATCH] Fix Windows Timer stop issue. |
| From: | "Xu, Anthony" <anthony.xu@xxxxxxxxx> |
| Date: | Fri, 20 Oct 2006 14:35:12 +0800 |
| Delivery-date: | Fri, 20 Oct 2006 11:44:55 -0700 |
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| Thread-index: | Acb0EeT4ohvM3CoiTOqibwdVGKmmSw== |
| Thread-topic: | [Xen-ia64-devel][PATCH] Fix Windows Timer stop issue. |
When doing HCT testing on Guest Windows, Windows Timer might stop, if there is no mouse activity. When implementing vhpi acceleration, I didn't think of below situation. Windows uses "epc" instruction to implement system call like Linux. In a very small code sequence including "epc" instruction, if there is an external interrupt, Windows will defer handling this external interrupt by rfi with ipsr.i=0. Signed-off-by, Anthony Xu < anthony.xu@xxxxxxxxx > Anthony
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