[v15,01/10] x86: add "w" flag to .init.data section definition
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Message ID 1487097209-19552-2-git-send-email-daniel.kiper@oracle.com
State New, archived
Headers show

Commit Message

Daniel Kiper Feb. 14, 2017, 6:33 p.m. UTC
init.data section is clearly writable, so, add "w" flag to its
definition in xen/arch/x86/boot/x86_64.S.

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
---
 xen/arch/x86/boot/x86_64.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Andrew Cooper Feb. 14, 2017, 6:47 p.m. UTC | #1
On 14/02/17 18:33, Daniel Kiper wrote:
> init.data section is clearly writable, so, add "w" flag to its
> definition in xen/arch/x86/boot/x86_64.S.
>
> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>

Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>

Patch
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diff --git a/xen/arch/x86/boot/x86_64.S b/xen/arch/x86/boot/x86_64.S
index 139b2ca..4d507fb 100644
--- a/xen/arch/x86/boot/x86_64.S
+++ b/xen/arch/x86/boot/x86_64.S
@@ -186,7 +186,7 @@  GLOBAL(idle_pg_table)
 GLOBAL(__page_tables_end)
 
 /* Init pagetables.  Enough page directories to map into the bottom 1GB. */
-        .section .init.data, "a", @progbits
+        .section .init.data, "aw", @progbits
         .align PAGE_SIZE, 0
 
 GLOBAL(l2_bootmap)