[Xen-changelog] [xen master] xen: arm: map entire memory banks on arm64

[patchbot@xxxxxxx]

commit d2766bee0f1f0fc1c4dbf30dcc9a43b91d5f19ce
Author:     Ian Campbell <ian.campbell@xxxxxxxxxx>
AuthorDate: Thu Oct 10 15:43:42 2013 +0100
Commit:     Ian Campbell <ian.campbell@xxxxxxxxxx>
CommitDate: Thu Oct 24 14:23:56 2013 +0100

    xen: arm: map entire memory banks on arm64
    
    Currently we only map regions which are not part of boot modules. However we
    subsequently free at least some of those modules to the heaps in
    discard_initial_modules and if we were unluckly with sizing/location we 
might
    end up adding unmapped pages to the heap.
    
    The heaps on 64-bit use 1GB mappings, so in practice this is probably pretty
    unlikely and I've not actually seen it.
    
    Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
    Acked-by: Julien Grall <julien.grall@xxxxxxxxxx>
---
 xen/arch/arm/setup.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/setup.c b/xen/arch/arm/setup.c
index 7d6e596..1081b43 100644
--- a/xen/arch/arm/setup.c
+++ b/xen/arch/arm/setup.c
@@ -520,6 +520,8 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t 
dtb_size)
 
         xenheap_pages += (bank_size >> PAGE_SHIFT);
 
+        setup_xenheap_mappings(bank_start>>PAGE_SHIFT, bank_size>>PAGE_SHIFT);
+
         /* XXX we assume that the ram regions are ordered */
         s = bank_start;
         while ( s < bank_end )
@@ -536,8 +538,6 @@ static void __init setup_mm(unsigned long dtb_paddr, size_t 
dtb_size)
             if ( e > bank_end )
                 e = bank_end;
 
-            setup_xenheap_mappings(s>>PAGE_SHIFT, (e-s)>>PAGE_SHIFT);
-
             xenheap_mfn_end = e;
 
             dt_unreserved_regions(s, e, init_boot_pages, 0);
--
generated by git-patchbot for /home/xen/git/xen.git#master

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