diff --git a/tools/testing/selftests/vm/protection_keys.c b/tools/testing/selftests/vm/protection_keys.c
index f43a319..88dfa40 100644
--- a/tools/testing/selftests/vm/protection_keys.c
+++ b/tools/testing/selftests/vm/protection_keys.c

@@ -197,17 +197,18 @@ void dump_mem(void *dumpme, int len_bytes)
 
 int pkey_faults;
 int last_si_pkey = -1;
+void pkey_access_allow(int pkey);
 void signal_handler(int signum, siginfo_t *si, void *vucontext)
 {
 	ucontext_t *uctxt = vucontext;
 	int trapno;
 	unsigned long ip;
 	char *fpregs;
+#if defined(__i386__) || defined(__x86_64__) /* arch */
 	pkey_reg_t *pkey_reg_ptr;
-	u64 siginfo_pkey;
+#endif /* defined(__i386__) || defined(__x86_64__) */
+	u32 siginfo_pkey;
 	u32 *si_pkey_ptr;
-	int pkey_reg_offset;
-	fpregset_t fpregset;
 
 	dprint_in_signal = 1;
 	dprintf1(">>>>===============SIGSEGV============================\n");

@@ -217,12 +218,14 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
 
 	trapno = uctxt->uc_mcontext.gregs[REG_TRAPNO];
 	ip = uctxt->uc_mcontext.gregs[REG_IP_IDX];
-	fpregset = uctxt->uc_mcontext.fpregs;
-	fpregs = (void *)fpregset;
+	fpregs = (char *) uctxt->uc_mcontext.fpregs;
 
 	dprintf2("%s() trapno: %d ip: 0x%016lx info->si_code: %s/%d\n",
 			__func__, trapno, ip, si_code_str(si->si_code),
 			si->si_code);
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+
 #ifdef __i386__
 	/*
 	 * 32-bit has some extra padding so that userspace can tell whether

@@ -230,20 +233,28 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
 	 * state.  We just assume that it is here.
 	 */
 	fpregs += 0x70;
-#endif
-	pkey_reg_offset = pkey_reg_xstate_offset();
-	pkey_reg_ptr = (void *)(&fpregs[pkey_reg_offset]);
+#endif /* __i386__ */
 
-	dprintf1("siginfo: %p\n", si);
-	dprintf1(" fpregs: %p\n", fpregs);
+	pkey_reg_ptr = (void *)(&fpregs[pkey_reg_xstate_offset()]);
 	/*
-	 * If we got a PKEY fault, we *HAVE* to have at least one bit set in
+	 * If we got a key fault, we *HAVE* to have at least one bit set in
 	 * here.
 	 */
 	dprintf1("pkey_reg_xstate_offset: %d\n", pkey_reg_xstate_offset());
 	if (DEBUG_LEVEL > 4)
 		dump_mem(pkey_reg_ptr - 128, 256);
 	pkey_assert(*pkey_reg_ptr);
+#endif /* defined(__i386__) || defined(__x86_64__) */

+	dprintf1("siginfo: %p\n", si);
+	dprintf1(" fpregs: %p\n", fpregs);
+
+	si_pkey_ptr = siginfo_get_pkey_ptr(si);
+	dprintf1("si_pkey_ptr: %p\n", si_pkey_ptr);
+	dump_mem(si_pkey_ptr - 8, 24);
+	siginfo_pkey = *si_pkey_ptr;
+	pkey_assert(siginfo_pkey < NR_PKEYS);
+	last_si_pkey = siginfo_pkey;
 
 	if ((si->si_code == SEGV_MAPERR) ||
 	    (si->si_code == SEGV_ACCERR) ||

@@ -252,22 +263,21 @@ void signal_handler(int signum, siginfo_t *si, void *vucontext)
 		exit(4);
 	}
 
-	si_pkey_ptr = (u32 *)(((u8 *)si) + si_pkey_offset);
-	dprintf1("si_pkey_ptr: %p\n", si_pkey_ptr);
-	dump_mem((u8 *)si_pkey_ptr - 8, 24);
-	siginfo_pkey = *si_pkey_ptr;
-	pkey_assert(siginfo_pkey < NR_PKEYS);
-	last_si_pkey = siginfo_pkey;

-	dprintf1("signal pkey_reg from xsave: "PKEY_REG_FMT"\n", *pkey_reg_ptr);
 	/*
 	 * need __read_pkey_reg() version so we do not do shadow_pkey_reg
 	 * checking
 	 */
 	dprintf1("signal pkey_reg from  pkey_reg: "PKEY_REG_FMT"\n",
 			__read_pkey_reg());
-	dprintf1("pkey from siginfo: %jx\n", siginfo_pkey);
-	*(u64 *)pkey_reg_ptr = 0x00000000;
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	dprintf1("signal pkey_reg from xsave: "PKEY_REG_FMT"\n", *pkey_reg_ptr);
+	*(u64 *)pkey_reg_ptr &= clear_pkey_flags(siginfo_pkey,
+			PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE);
+#elif __powerpc64__
+	pkey_access_allow(siginfo_pkey);
+#endif
+	shadow_pkey_reg &= clear_pkey_flags(siginfo_pkey,
+			PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE);
 	dprintf1("WARNING: set PKEY_REG=0 to allow faulting instruction "
 			"to continue\n");
 	pkey_faults++;

@@ -1331,9 +1341,8 @@ void test_executing_on_unreadable_memory(int *ptr, u16 pkey)
 	madvise(p1, PAGE_SIZE, MADV_DONTNEED);
 	lots_o_noops_around_write(&scratch);
 	do_not_expect_pkey_fault("executing on PROT_EXEC memory");
-	ptr_contents = read_ptr(p1);
-	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);
-	expected_pkey_fault(pkey);
+
+	expect_fault_on_read_execonly_key(p1, pkey);
 }