lkml.org 
[lkml]   [2015]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] KVM: MMU: fix comment in kvm_mmu_zap_collapsible_spte


> - * Only EPT supported for now; otherwise, one would need to
> - * find out efficiently whether the guest page tables are
> - * also using huge pages.
> + * We can not do huge page mapping for the indirect shadow
> + * page (sp) found on the last rmap (level = 1 ) since
> + * indirect sp is synced with the page table in guest and
> + * indirect sp->level = 1 means the guest page table is
> + * using 4K page size mapping.

What about:

+ * We cannot do huge page mapping for indirect shadow pages,
+ * which are found on the last rmap (level = 1) when not using
+ * tdp; such shadow pages are synced with the page table in
+ * the guest, and the guest page table is using 4K page size
+ * mapping if the indirect sp has level = 1.


\
 
 \ /
  Last update: 2015-04-15 17:41    [W:0.068 / U:4.172 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site