Il 19/06/2013 11:09, Xiao Guangrong ha scritto: > Update the document to match the current reverse mapping of > parent_pte > > Signed-off-by: Xiao Guangrong <xiaoguangr...@linux.vnet.ibm.com> > --- > Documentation/virtual/kvm/mmu.txt | 12 ++++++------ > 1 file changed, 6 insertions(+), 6 deletions(-) > > diff --git a/Documentation/virtual/kvm/mmu.txt > b/Documentation/virtual/kvm/mmu.txt > index 43fcb76..869abcc 100644 > --- a/Documentation/virtual/kvm/mmu.txt > +++ b/Documentation/virtual/kvm/mmu.txt > @@ -191,12 +191,12 @@ Shadow pages contain the following information: > A counter keeping track of how many hardware registers (guest cr3 or > pdptrs) are now pointing at the page. While this counter is nonzero, the > page cannot be destroyed. See role.invalid. > - multimapped: > - Whether there exist multiple sptes pointing at this page. > - parent_pte/parent_ptes: > - If multimapped is zero, parent_pte points at the single spte that points > at > - this page's spt. Otherwise, parent_ptes points at a data structure > - with a list of parent_ptes. > + parent_ptes: > + The reverse mapping for the pte/ptes pointing at this page's spt. If > + parent_ptes bit 0 is zero, only one spte points at this pages and > + parent_ptes points at this single spte, otherwise, there exists multiple > + sptes pointing at this page and (parent_ptes & ~0x1) points at a data > + structure with a list of parent_ptes.
Applying with this small change: The reverse mapping for the pte/ptes pointing at this page's spt. If bit 0 is zero, only one spte points at this pages and parent_ptes points at this single spte. If bit 0 is set, there exist multiple sptes pointing at this page and (parent_ptes & ~0x1) points at a data structure with a list of parent_ptes. Paolo > unsync: > If true, then the translations in this page may not match the guest's > translation. This is equivalent to the state of the tlb when a pte is > -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
