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[Xen-ia64-devel] [PATCH]: clear the key part of cr.itir
| To: | Alex Williamson <alex.williamson@xxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel] [PATCH]: clear the key part of cr.itir |
| From: | Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxxxxxxx> |
| Date: | Wed, 4 Jul 2007 13:16:24 +0200 |
| Cc: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Wed, 04 Jul 2007 04:14:09 -0700 |
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Hi, the attached patch clears the key part of the cr.itir register before itc.X in alt_dtlb_miss(), alt_itlb_miss() and frametable_miss(). This is in preparation of using protection keys. The plan is to use the key 0x0 for the hypervisor. The patch doesn't change the footprint of the trap handlers. Please send comments or commit. Thanks. Dietmar.
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