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[Xen-ia64-devel][PATCH] optimize entry and exit path
| To: | <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel][PATCH] optimize entry and exit path |
| From: | "Xu, Anthony" <anthony.xu@xxxxxxxxx> |
| Date: | Mon, 10 Jul 2006 15:24:05 +0800 |
| Delivery-date: | Mon, 10 Jul 2006 00:24:30 -0700 |
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| Thread-index: | Acaj8dM27Di4vZFLSnmBTpMJWYKfKg== |
| Thread-topic: | [Xen-ia64-devel][PATCH] optimize entry and exit path |
VMM save/restore r4~r7 and unat to handle virtualization fault and mmio access, but it is not necessary for other faults to save/restore these registers. This patch is to save/restore these registers only when dtlb and virtualization fault happen. Signed-off-by: Anthony Xu < anthony.xu@xxxxxxxxx> Thanks, Anthony
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