[Xen-changelog] [xen-unstable] [IA64] Include dummy EFI memory descriptors for unmapped ranges

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User awilliam@xxxxxxxxxxxx
# Date 1170225332 25200
# Node ID f4395e945393a4b00b6a79b86947b462023ced8c
# Parent  d0b2022e2403bb4e625a4bb30b3f852aa65aff63
[IA64] Include dummy EFI memory descriptors for unmapped ranges

This eliminates a lot of warnings about dom0 trying to do UC
mappings to WB ranges.  Linux doesn't deal well with holes within
a granule.

Signed-off-by: Alex Williamson <alex.williamson@xxxxxx>
---
 xen/arch/ia64/xen/dom_fw.c |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletion(-)

diff -r d0b2022e2403 -r f4395e945393 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c        Mon Jan 29 11:17:15 2007 -0700
+++ b/xen/arch/ia64/xen/dom_fw.c        Tue Jan 30 23:35:32 2007 -0700
@@ -599,7 +599,17 @@ complete_dom0_memmap(struct domain *d,
 
                case EFI_UNUSABLE_MEMORY:
                case EFI_PAL_CODE:
-                       /* Discard.  */
+                       /*
+                        * We don't really need these, but holes in the
+                        * memory map may cause Linux to assume there are
+                        * uncacheable ranges within a granule.
+                        */
+                       dom_md->type = EFI_UNUSABLE_MEMORY;
+                       dom_md->phys_addr = start;
+                       dom_md->virt_addr = 0;
+                       dom_md->num_pages = (end - start) >> EFI_PAGE_SHIFT;
+                       dom_md->attribute = EFI_MEMORY_WB;
+                       num_mds++;
                        break;
 
                default:

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