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| author | Avi Kivity <avi@redhat.com> | 2010-04-26 12:59:21 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-05-17 13:19:32 +0400 |
| commit | c4bd09b28907ca17cdb307c32bbcc9882c280feb (patch) | |
| tree | d9a30b65423a545a87bd478e060e43f8acb41a9a /Documentation/kvm | |
| parent | b843f065481488fd1d1f4ff2179aaf4f300a1358 (diff) | |
| download | linux-c4bd09b28907ca17cdb307c32bbcc9882c280feb.tar.xz | |
KVM: Minor MMU documentation edits
Reported by Andrew Jones.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'Documentation/kvm')
| -rw-r--r-- | Documentation/kvm/mmu.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/kvm/mmu.txt b/Documentation/kvm/mmu.txt index da046711362d..0cc28fb84f4f 100644 --- a/Documentation/kvm/mmu.txt +++ b/Documentation/kvm/mmu.txt @@ -75,8 +75,8 @@ direct mode; otherwise it operates in shadow mode (see below). 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. @@ -111,7 +111,7 @@ is not related to a translation directly. It points to other shadow pages. 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 @@ -167,7 +167,7 @@ Shadow pages contain the following information: 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. @@ -235,7 +235,7 @@ the amount of emulation we have to do when the guest modifies multiple gptes, 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. |