Memory
======
-Guest memory (gpa) is part of user address space of the process that is using
-kvm. Userspace defines the translation between guest addresses and user
+Guest memory (gpa) is part of the user address space of the process that is
+using kvm. Userspace defines the translation between guest addresses and user
addresses (gpa->hva); note that two gpas may alias to the same gva, but not
vice versa.
A leaf spte corresponds to either one or two translations encoded into
one paging structure entry. These are always the lowest level of the
-translation stack, with an optional higher level translations left to NPT/EPT.
+translation stack, with optional higher level translations left to NPT/EPT.
Leaf ptes point at guest pages.
The following table shows translations encoded by leaf ptes, with higher-level
Either the guest page table containing the translations shadowed by this
page, or the base page frame for linear translations. See role.direct.
spt:
- A pageful of 64-bit sptes containig the translations for this page.
+ A pageful of 64-bit sptes containing the translations for this page.
Accessed by both kvm and hardware.
The page pointed to by spt will have its page->private pointing back
at the shadow page structure.
or when the a guest page is no longer used as a page table and is used for
random guest data.
-As a side effect we have resynchronize all reachable unsynchronized shadow
+As a side effect we have to resynchronize all reachable unsynchronized shadow
pages on a tlb flush.