--- arch/powerpc/platforms/pseries/plpar_wrappers.h

+++ arch/powerpc/platforms/pseries/plpar_wrappers.h

@@ -169,6 +169,24 @@ static inline long plpar_pte_read_raw(un

return rc;

}

+/*

+ * plpar_pte_read_4_raw can be called in real mode.

+ * ptes must be 8*sizeof(unsigned long)

+ */

+static inline long plpar_pte_read_4_raw(unsigned long flags, unsigned long ptex,

+ unsigned long *ptes)

+

+{

+ long rc;

+ unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];

+

+ rc = plpar_hcall9_raw(H_READ, retbuf, flags | H_READ_4, ptex);

+

+ memcpy(ptes, retbuf, 8*sizeof(unsigned long));

+

+ return rc;

+}

+

static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,

unsigned long avpn)

{