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[PULL 05/20] tests/tcg/aarch64: Add pauth-4
From: |
Peter Maydell |
Subject: |
[PULL 05/20] tests/tcg/aarch64: Add pauth-4 |
Date: |
Thu, 23 Jan 2020 15:30:26 +0000 |
From: Richard Henderson <address@hidden>
Perform the set of operations and test described in LP 1859713.
Suggested-by: Adrien GRASSEIN <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Message-id: address@hidden
[PMM: fixed hard-coded tabs]
Signed-off-by: Peter Maydell <address@hidden>
---
tests/tcg/aarch64/Makefile.target | 2 +-
tests/tcg/aarch64/pauth-4.c | 25 +++++++++++++++++++++++++
2 files changed, 26 insertions(+), 1 deletion(-)
create mode 100644 tests/tcg/aarch64/pauth-4.c
diff --git a/tests/tcg/aarch64/Makefile.target
b/tests/tcg/aarch64/Makefile.target
index 374c8d6830f..efa67cf1e9e 100644
--- a/tests/tcg/aarch64/Makefile.target
+++ b/tests/tcg/aarch64/Makefile.target
@@ -18,7 +18,7 @@ run-fcvt: fcvt
$(call diff-out,$<,$(AARCH64_SRC)/fcvt.ref)
# Pauth Tests
-AARCH64_TESTS += pauth-1 pauth-2
+AARCH64_TESTS += pauth-1 pauth-2 pauth-4
run-pauth-%: QEMU_OPTS += -cpu max
pauth-%: CFLAGS += -march=armv8.3-a
diff --git a/tests/tcg/aarch64/pauth-4.c b/tests/tcg/aarch64/pauth-4.c
new file mode 100644
index 00000000000..1040e92aec3
--- /dev/null
+++ b/tests/tcg/aarch64/pauth-4.c
@@ -0,0 +1,25 @@
+#include <stdint.h>
+#include <assert.h>
+
+int main()
+{
+ uintptr_t x, y;
+
+ asm("mov %0, lr\n\t"
+ "pacia %0, sp\n\t" /* sigill if pauth not supported */
+ "eor %0, %0, #4\n\t" /* corrupt single bit */
+ "mov %1, %0\n\t"
+ "autia %1, sp\n\t" /* validate corrupted pointer */
+ "xpaci %0\n\t" /* strip pac from corrupted pointer */
+ : "=r"(x), "=r"(y));
+
+ /*
+ * Once stripped, the corrupted pointer is of the form 0x0000...wxyz.
+ * We expect the autia to indicate failure, producing a pointer of the
+ * form 0x000e....wxyz. Use xpaci and != for the test, rather than
+ * extracting explicit bits from the top, because the location of the
+ * error code "e" depends on the configuration of virtual memory.
+ */
+ assert(x != y);
+ return 0;
+}
--
2.20.1
- [PULL 00/20] target-arm queue, Peter Maydell, 2020/01/23
- [PULL 01/20] target/arm: add PMU feature to cortex-r5 and cortex-r5f, Peter Maydell, 2020/01/23
- [PULL 04/20] tests/tcg/aarch64: Add pauth-3, Peter Maydell, 2020/01/23
- [PULL 05/20] tests/tcg/aarch64: Add pauth-4,
Peter Maydell <=
- [PULL 07/20] hw/arm: Use helper function to trigger hotplug handler plug, Peter Maydell, 2020/01/23
- [PULL 03/20] tests/tcg/aarch64: Fix compilation parameters for pauth-%, Peter Maydell, 2020/01/23
- [PULL 06/20] hw/acpi: Remove extra indent in ACPI GED hotplug cb, Peter Maydell, 2020/01/23
- [PULL 02/20] target/arm: Fix PAuth sbox functions, Peter Maydell, 2020/01/23
- [PULL 09/20] docs: Create stub system manual, Peter Maydell, 2020/01/23
- [PULL 08/20] qemu-nbd: Convert invocation documentation to rST, Peter Maydell, 2020/01/23
- [PULL 12/20] hw/misc/stm32f4xx_syscfg: Fix copy/paste error, Peter Maydell, 2020/01/23
- [PULL 14/20] hw/core/or-irq: Increase limit of or-lines to 48, Peter Maydell, 2020/01/23
- [PULL 13/20] dma/pl330: Convert to support tracing, Peter Maydell, 2020/01/23
- [PULL 15/20] hw/arm/exynos4210: Fix DMA initialization, Peter Maydell, 2020/01/23