Patchwork [PULL,3/3] target-i386: Fix mask of pte index in memory mapping

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Submitter Luiz Capitulino
Date May 31, 2013, 2:18 p.m.
Message ID <1370009905-4255-4-git-send-email-lcapitulino@redhat.com>
Download mbox | patch
Permalink /patch/247966/
State New
Headers show

Comments

Luiz Capitulino - May 31, 2013, 2:18 p.m.
From: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>

Function walk_pte() needs pte index to calculate virtual address.
However, pte index of PAE paging or IA-32e paging is 9 bit, so the mask
should be 0x1ff.

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Reviewed-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 target-i386/arch_memory_mapping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/target-i386/arch_memory_mapping.c b/target-i386/arch_memory_mapping.c
index 24884bd..5096fbd 100644
--- a/target-i386/arch_memory_mapping.c
+++ b/target-i386/arch_memory_mapping.c
@@ -38,7 +38,7 @@  static void walk_pte(MemoryMappingList *list, hwaddr pte_start_addr,
             continue;
         }
 
-        start_vaddr = start_line_addr | ((i & 0x1fff) << 12);
+        start_vaddr = start_line_addr | ((i & 0x1ff) << 12);
         memory_mapping_list_add_merge_sorted(list, start_paddr,
                                              start_vaddr, 1 << 12);
     }