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[Xen-changelog] [xen-unstable] [LINUX][X86/64] Initialise pages outside

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Subject: [Xen-changelog] [xen-unstable] [LINUX][X86/64] Initialise pages outside initial allocation so that
From: Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 09 Jun 2006 18:55:10 +0000
Delivery-date: Fri, 09 Jun 2006 11:56:57 -0700
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# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID 4df81d20a9a1a8dfbe47d1b5697122559d7b6cc9
# Parent  5a0ed6c476732da229c3307ea5357cdd196e5462
[LINUX][X86/64] Initialise pages outside initial allocation so that
they are picked up by the balloon driver.
From: Jan Beulich
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
 linux-2.6-xen-sparse/arch/x86_64/mm/init-xen.c |    7 +++++++
 1 files changed, 7 insertions(+)

diff -r 5a0ed6c47673 -r 4df81d20a9a1 
linux-2.6-xen-sparse/arch/x86_64/mm/init-xen.c
--- a/linux-2.6-xen-sparse/arch/x86_64/mm/init-xen.c    Fri Jun 09 14:29:00 
2006 +0100
+++ b/linux-2.6-xen-sparse/arch/x86_64/mm/init-xen.c    Fri Jun 09 16:18:40 
2006 +0100
@@ -882,6 +882,7 @@ void __init mem_init(void)
 void __init mem_init(void)
 {
        long codesize, reservedpages, datasize, initsize;
+       unsigned long pfn;
 
        contiguous_bitmap = alloc_bootmem_low_pages(
                (end_pfn + 2*BITS_PER_LONG) >> 3);
@@ -910,6 +911,12 @@ void __init mem_init(void)
 #else
        totalram_pages = free_all_bootmem();
 #endif
+       /* XEN: init and count pages outside initial allocation. */
+       for (pfn = xen_start_info->nr_pages; pfn < max_pfn; pfn++) {
+               ClearPageReserved(&mem_map[pfn]);
+               set_page_count(&mem_map[pfn], 1);
+               totalram_pages++;
+       }
        reservedpages = end_pfn - totalram_pages - e820_hole_size(0, end_pfn);
 
        after_bootmem = 1;

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