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-rw-r--r--tools/testing/selftests/arm64/fp/sve-test.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/fp/sve-test.S b/tools/testing/selftests/arm64/fp/sve-test.S
index 4328895dfc..547d077e35 100644
--- a/tools/testing/selftests/arm64/fp/sve-test.S
+++ b/tools/testing/selftests/arm64/fp/sve-test.S
@@ -473,6 +473,13 @@ function _start
// mov x8, #__NR_sched_yield // Encourage preemption
// svc #0
+#ifdef SSVE
+ mrs x0, S3_3_C4_C2_2 // SVCR should have ZA=0,SM=1
+ and x1, x0, #3
+ cmp x1, #1
+ b.ne svcr_barf
+#endif
+
mov x21, #0
0: mov x0, x21
bl check_zreg
@@ -553,3 +560,15 @@ function vl_barf
mov x1, #1
svc #0
endfunction
+
+function svcr_barf
+ mov x10, x0
+
+ puts "Bad SVCR: "
+ mov x0, x10
+ bl putdecn
+
+ mov x8, #__NR_exit
+ mov x1, #1
+ svc #0
+endfunction