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[Xen-devel] MULTI_mmu_update, HYPERVISOR_mmu_update and pte entry
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] MULTI_mmu_update, HYPERVISOR_mmu_update and pte entry |
| From: | chrisbenninger <chrisbenninger@xxxxxxxxx> |
| Date: | Thu, 12 May 2011 15:41:43 -0700 |
| Delivery-date: | Thu, 12 May 2011 15:43:07 -0700 |
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Hi, I am working on being able to determine which process owns a PTE being changed during each MMU update in 64-bit paravirtualized mode. I have a couple questions here. 1. When a linux DomU wants to make an update to a PTE, it calls HYPERVISOR_mmu_update? In my case it appears to be calling MULTI_mmu_update mostly. Are these two functions the only primary ways a VM will ask for an MMU update?
2. The mmu_update struct that comes along with a MMU update has a unint64_t ptr which is a machine address to the PTE being changed. Is there any way to use this machine address and determine the pte_t or page from within a DomU?
Thanks for any help you can give! Chris Benninger _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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