WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] [PATCH 3/3] x86: move memblock_x86_reserve_range PGTABLE to

From: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

Now that find_early_table_space knows how to calculate the exact amout
of memory needed by the kernel pagetable, we can reserve the range
directly in find_early_table_space.

Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 arch/x86/mm/init.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 15590fd..36bacfe 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -104,6 +104,10 @@ static void __init find_early_table_space(unsigned long 
start,
 
        printk(KERN_DEBUG "kernel direct mapping tables up to %lx @ %lx-%lx\n",
                end, pgt_buf_start << PAGE_SHIFT, pgt_buf_top << PAGE_SHIFT);
+
+       if (pgt_buf_top > pgt_buf_start)
+               memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT,
+                                pgt_buf_top << PAGE_SHIFT, "PGTABLE");
 }
 
 struct map_range {
@@ -301,10 +305,6 @@ unsigned long __init_refok init_memory_mapping(unsigned 
long start,
                printk(KERN_DEBUG "initial kernel pagetable allocation wasted 
%lx"
                                " pages\n", pgt_buf_top - pgt_buf_end);
 
-       if (!after_bootmem && pgt_buf_end > pgt_buf_start)
-               memblock_x86_reserve_range(pgt_buf_start << PAGE_SHIFT,
-                                pgt_buf_end << PAGE_SHIFT, "PGTABLE");
-
        if (!after_bootmem)
                early_memtest(start, end);
 
-- 
1.7.2.3


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel