powerpc: Fix little endian lppaca, slb_shadow and dtl_entry
The lppaca, slb_shadow and dtl_entry hypervisor structures are
big endian, so we have to byte swap them in little endian builds.
LE KVM hosts will also need to be fixed but for now add an #error
to remind us.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index a538c80..9d1d33c 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -66,8 +66,10 @@
* we only update the current CPU's SLB shadow buffer.
*/
get_slb_shadow()->save_area[entry].esid = 0;
- get_slb_shadow()->save_area[entry].vsid = mk_vsid_data(ea, ssize, flags);
- get_slb_shadow()->save_area[entry].esid = mk_esid_data(ea, ssize, entry);
+ get_slb_shadow()->save_area[entry].vsid =
+ cpu_to_be64(mk_vsid_data(ea, ssize, flags));
+ get_slb_shadow()->save_area[entry].esid =
+ cpu_to_be64(mk_esid_data(ea, ssize, entry));
}
static inline void slb_shadow_clear(unsigned long entry)
@@ -112,7 +114,8 @@
} else {
/* Update stack entry; others don't change */
slb_shadow_update(get_paca()->kstack, mmu_kernel_ssize, lflags, 2);
- ksp_vsid_data = get_slb_shadow()->save_area[2].vsid;
+ ksp_vsid_data =
+ be64_to_cpu(get_slb_shadow()->save_area[2].vsid);
}
/* We need to do this all in asm, so we're sure we don't touch