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[Xen-ia64-devel] PATCH: do not use interrupt_mask_addr inside Xen
| To: | xen-ia64-devel@xxxxxxxxxxxxxxxxxxx, "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@xxxxxx>, Alex Williamson <alex.williamson@xxxxxx> |
|---|---|
| Subject: | [Xen-ia64-devel] PATCH: do not use interrupt_mask_addr inside Xen |
| From: | Tristan Gingold <Tristan.Gingold@xxxxxxxx> |
| Date: | Wed, 14 Jun 2006 16:51:32 +0200 |
| Delivery-date: | Wed, 14 Jun 2006 07:47:21 -0700 |
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Hi, because the guest may modify interrupt_mask_addr and Xen runs at PL0, Xen should not use this pointer. This patch fixes a security issue and is a step toward shared_info remapping. Tested by booting dom0+domU. Tristan.
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