PERFORCE change 93822 for review
Olivier Houchard
cognet at FreeBSD.org
Wed Mar 22 22:07:00 UTC 2006
http://perforce.freebsd.org/chv.cgi?CH=93822
Change 93822 by cognet at cognet on 2006/03/22 22:06:17
More special casing of when vector_page == 0x00000000 :
catch attempts to write to vector_page earlier in pmap_fault_fixup(),
and deny it.
Affected files ...
.. //depot/projects/arm/src/sys/arm/arm/pmap.c#11 edit
Differences ...
==== //depot/projects/arm/src/sys/arm/arm/pmap.c#11 (text+ko) ====
@@ -2021,6 +2021,8 @@
*/
if (user && (pte & L2_S_PROT_U) == 0)
goto out;
+ if (va == vector_page)
+ goto out;
pa = l2pte_pa(pte);
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