[Qemu-devel] [PATCH v2 2/2] tests/tcg/aarch64: Add pauth smoke test

[Richard Henderson]

Reviewed-by: Alex Bennée <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
v2: Pass all 5 arguments to prctl; remove -O1.
---
 tests/tcg/aarch64/pauth-1.c       | 23 +++++++++++++++++++++++
 tests/tcg/aarch64/Makefile.target |  6 +++++-
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 tests/tcg/aarch64/pauth-1.c

diff --git a/tests/tcg/aarch64/pauth-1.c b/tests/tcg/aarch64/pauth-1.c
new file mode 100644
index 0000000000..ae6dc05c2b
--- /dev/null
+++ b/tests/tcg/aarch64/pauth-1.c
@@ -0,0 +1,23 @@
+#include <assert.h>
+#include <sys/prctl.h>
+
+asm(".arch armv8.4-a");
+
+#ifndef PR_PAC_RESET_KEYS
+#define PR_PAC_RESET_KEYS  54
+#define PR_PAC_APDAKEY     (1 << 2)
+#endif
+
+int main()
+{
+    int x;
+    void *p0 = &x, *p1, *p2;
+
+    asm volatile("pacdza %0" : "=r"(p1) : "0"(p0));
+    prctl(PR_PAC_RESET_KEYS, PR_PAC_APDAKEY, 0, 0, 0);
+    asm volatile("pacdza %0" : "=r"(p2) : "0"(p0));
+
+    assert(p1 != p0);
+    assert(p1 != p2);
+    return 0;
+}
diff --git a/tests/tcg/aarch64/Makefile.target 
b/tests/tcg/aarch64/Makefile.target
index 08c45b8470..2bb914975b 100644
--- a/tests/tcg/aarch64/Makefile.target
+++ b/tests/tcg/aarch64/Makefile.target
@@ -8,10 +8,14 @@ VPATH                 += $(AARCH64_SRC)
 # we don't build any of the ARM tests
 AARCH64_TESTS=$(filter-out $(ARM_TESTS), $(TESTS))
 AARCH64_TESTS+=fcvt
-TESTS:=$(AARCH64_TESTS)
 
 fcvt: LDFLAGS+=-lm
 
 run-fcvt: fcvt
        $(call run-test,$<,$(QEMU) $<, "$< on $(TARGET_NAME)")
        $(call diff-out,$<,$(AARCH64_SRC)/fcvt.ref)
+
+AARCH64_TESTS += pauth-1
+run-pauth-%: QEMU += -cpu max
+
+TESTS:=$(AARCH64_TESTS)
-- 
2.17.2