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[POWERPC] Provide a way to protect 4k subpages when using 64k pages
[firefly-linux-kernel-4.4.55.git]
/
arch
/
powerpc
/
kernel
/
head_64.S
diff --git
a/arch/powerpc/kernel/head_64.S
b/arch/powerpc/kernel/head_64.S
index c34986835a4e6f80593ed4588b0bf681f5628c9c..11b4f6d9ffcecfb3fde2d60cd4c05dcee66ad832 100644
(file)
--- a/
arch/powerpc/kernel/head_64.S
+++ b/
arch/powerpc/kernel/head_64.S
@@
-903,6
+903,7
@@
handle_page_fault:
* the PTE insertion
*/
12: bl .save_nvgprs
+ mr r5,r3
addi r3,r1,STACK_FRAME_OVERHEAD
ld r4,_DAR(r1)
bl .low_hash_fault