svn commit: r286854 - stable/10/sys/x86/iommu

[Konstantin Belousov]

Author: kib
Date: Mon Aug 17 18:36:16 2015
New Revision: 286854
URL: https://svnweb.freebsd.org/changeset/base/286854

Log:
  MFC r286777:
  Comment only change, fix grammar and somewhat clarify the action.

Modified:
  stable/10/sys/x86/iommu/intel_idpgtbl.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/x86/iommu/intel_idpgtbl.c
==============================================================================
--- stable/10/sys/x86/iommu/intel_idpgtbl.c	Mon Aug 17 18:34:54 2015	(r286853)
+++ stable/10/sys/x86/iommu/intel_idpgtbl.c	Mon Aug 17 18:36:16 2015	(r286854)
@@ -368,8 +368,9 @@ retry:
 		if (pte == NULL) {
 			KASSERT(lvl > 0, ("lost root page table page %p", ctx));
 			/*
-			 * Page table page does not exists, allocate
-			 * it and create pte in the up level.
+			 * Page table page does not exist, allocate
+			 * it and create a pte in the preceeding page level
+			 * to reference the allocated page table page.
 			 */
 			m = dmar_pgalloc(ctx->pgtbl_obj, idx, flags |
 			    DMAR_PGF_ZERO);