From: Mark Brown broonie@kernel.org

[ Upstream commit 0c69bd2ca6ee20064dde7853cd749284e053a874 ]

The PAC tests check to see if the system supports the relevant PAC features but instead of skipping the tests if they can't be executed they fail the tests which makes things look like they're not working when they are.

Signed-off-by: Mark Brown broonie@kernel.org Link: https://lore.kernel.org/r/20210819165723.43903-1-broonie@kernel.org Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/arm64/pauth/pac.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/arm64/pauth/pac.c b/tools/testing/selftests/arm64/pauth/pac.c index 592fe538506e..b743daa772f5 100644 --- a/tools/testing/selftests/arm64/pauth/pac.c +++ b/tools/testing/selftests/arm64/pauth/pac.c @@ -25,13 +25,15 @@ do { \ unsigned long hwcaps = getauxval(AT_HWCAP); \ /* data key instructions are not in NOP space. This prevents a SIGILL */ \ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); \ + if (!(hwcaps & HWCAP_PACA)) \ + SKIP(return, "PAUTH not enabled"); \ } while (0) #define ASSERT_GENERIC_PAUTH_ENABLED() \ do { \ unsigned long hwcaps = getauxval(AT_HWCAP); \ /* generic key instructions are not in NOP space. This prevents a SIGILL */ \ - ASSERT_NE(0, hwcaps & HWCAP_PACG) TH_LOG("Generic PAUTH not enabled"); \ + if (!(hwcaps & HWCAP_PACG)) \ + SKIP(return, "Generic PAUTH not enabled"); \ } while (0)

void sign_specific(struct signatures *sign, size_t val) @@ -256,7 +258,7 @@ TEST(single_thread_different_keys) unsigned long hwcaps = getauxval(AT_HWCAP);

/* generic and data key instructions are not in NOP space. This prevents a SIGILL */ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); + ASSERT_PAUTH_ENABLED(); if (!(hwcaps & HWCAP_PACG)) { TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks"); nkeys = NKEYS - 1; @@ -299,7 +301,7 @@ TEST(exec_changed_keys) unsigned long hwcaps = getauxval(AT_HWCAP);

/* generic and data key instructions are not in NOP space. This prevents a SIGILL */ - ASSERT_NE(0, hwcaps & HWCAP_PACA) TH_LOG("PAUTH not enabled"); + ASSERT_PAUTH_ENABLED(); if (!(hwcaps & HWCAP_PACG)) { TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks"); nkeys = NKEYS - 1;