Re: [Xen-ia64-devel] [PATCH] VP model doesn't pass the whole ACPI table to dom0

[Kouya SHIMURA <kouya@xxxxxxxxxxxxxx>]

Hi Alex,

How about my attached patch. 
The size of a fragment which has EFI_MEMORY_RUNTIME is so small that
the fragment looks being ignored always. Is it necessary for xen? 
I think it just should be passed to dom0.

I'll try your patch also.

Thanks,
Kouya

Alex Williamson writes:
 > Hi Kouya,
 > 
 >    Here's a different approach that might be more clean.  Newer upstream
 > kernels have changed EFI MDT parsing so that it doesn't change the
 > original EFI table.  Here's a reference to the upstream changeset:
 > 
 > http://www.kernel.org/hg/linux-2.6/?cs=fb781f6d3e81
 > 
 > The attached patch is a port of this to xen.  Does this improve things
 > on the PRIMEQUEST?  The nice part about this is that it doesn't add any
 > new Xen specific code to the linux-xen files.  Thanks,
 > 
 >      Alex

diff -r 25483d9b55d4 xen/arch/ia64/linux-xen/efi.c
--- a/xen/arch/ia64/linux-xen/efi.c     Wed May 31 16:07:47 2006 -0600
+++ b/xen/arch/ia64/linux-xen/efi.c     Thu Jun 08 12:03:41 2006 +0900
@@ -328,6 +328,8 @@ efi_memmap_walk (efi_freemem_callback_t 
                        continue;
 
 #ifdef XEN
+               if (md->attribute & EFI_MEMORY_RUNTIME)
+                       continue;
 // this works around a problem in the ski bootloader
 {
                extern long running_on_sim;

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