aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/kvm/mmu.txt
diff options
context:
space:
mode:
authorAvi Kivity <avi@redhat.com>2010-04-26 04:59:21 -0400
committerAvi Kivity <avi@redhat.com>2010-05-17 05:19:32 -0400
commitc4bd09b28907ca17cdb307c32bbcc9882c280feb (patch)
treed9a30b65423a545a87bd478e060e43f8acb41a9a /Documentation/kvm/mmu.txt
parentb843f065481488fd1d1f4ff2179aaf4f300a1358 (diff)
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/mmu.txt')
-rw-r--r--Documentation/kvm/mmu.txt10
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).
75Memory 75Memory
76====== 76======
77 77
78Guest memory (gpa) is part of user address space of the process that is using 78Guest memory (gpa) is part of the user address space of the process that is
79kvm. Userspace defines the translation between guest addresses and user 79using kvm. Userspace defines the translation between guest addresses and user
80addresses (gpa->hva); note that two gpas may alias to the same gva, but not 80addresses (gpa->hva); note that two gpas may alias to the same gva, but not
81vice versa. 81vice versa.
82 82
@@ -111,7 +111,7 @@ is not related to a translation directly. It points to other shadow pages.
111 111
112A leaf spte corresponds to either one or two translations encoded into 112A leaf spte corresponds to either one or two translations encoded into
113one paging structure entry. These are always the lowest level of the 113one paging structure entry. These are always the lowest level of the
114translation stack, with an optional higher level translations left to NPT/EPT. 114translation stack, with optional higher level translations left to NPT/EPT.
115Leaf ptes point at guest pages. 115Leaf ptes point at guest pages.
116 116
117The following table shows translations encoded by leaf ptes, with higher-level 117The following table shows translations encoded by leaf ptes, with higher-level
@@ -167,7 +167,7 @@ Shadow pages contain the following information:
167 Either the guest page table containing the translations shadowed by this 167 Either the guest page table containing the translations shadowed by this
168 page, or the base page frame for linear translations. See role.direct. 168 page, or the base page frame for linear translations. See role.direct.
169 spt: 169 spt:
170 A pageful of 64-bit sptes containig the translations for this page. 170 A pageful of 64-bit sptes containing the translations for this page.
171 Accessed by both kvm and hardware. 171 Accessed by both kvm and hardware.
172 The page pointed to by spt will have its page->private pointing back 172 The page pointed to by spt will have its page->private pointing back
173 at the shadow page structure. 173 at the shadow page structure.
@@ -235,7 +235,7 @@ the amount of emulation we have to do when the guest modifies multiple gptes,
235or when the a guest page is no longer used as a page table and is used for 235or when the a guest page is no longer used as a page table and is used for
236random guest data. 236random guest data.
237 237
238As a side effect we have resynchronize all reachable unsynchronized shadow 238As a side effect we have to resynchronize all reachable unsynchronized shadow
239pages on a tlb flush. 239pages on a tlb flush.
240 240
241 241