diff options
| author | Bin Lu <bin.lu@arm.com> | 2020-09-30 10:10:50 +0800 |
|---|---|---|
| committer | Bin Lu <bin.lu@arm.com> | 2020-09-30 11:16:59 +0800 |
| commit | 4d421f58fe5607775374ab3f46cf209362061192 (patch) | |
| tree | ae73e679b0268f4d42cf89b269dcbcc470a575f1 /pkg/sentry/platform/kvm/testutil | |
| parent | d4d9238c52ee8eae127f566f1119d915fb6c1a00 (diff) | |
arm64 kvm: add a test case for kernel-tls checking
Signed-off-by: Bin Lu <bin.lu@arm.com>
Diffstat (limited to 'pkg/sentry/platform/kvm/testutil')
| -rw-r--r-- | pkg/sentry/platform/kvm/testutil/testutil_arm64.go | 5 | ||||
| -rw-r--r-- | pkg/sentry/platform/kvm/testutil/testutil_arm64.s | 16 |
2 files changed, 21 insertions, 0 deletions
diff --git a/pkg/sentry/platform/kvm/testutil/testutil_arm64.go b/pkg/sentry/platform/kvm/testutil/testutil_arm64.go index 4dad877ba..c5235ca9d 100644 --- a/pkg/sentry/platform/kvm/testutil/testutil_arm64.go +++ b/pkg/sentry/platform/kvm/testutil/testutil_arm64.go @@ -23,6 +23,11 @@ import ( "gvisor.dev/gvisor/pkg/sentry/arch" ) +// TLSWorks is a tls test. +// +// It returns true or false. +func TLSWorks() bool + // SetTestTarget sets the rip appropriately. func SetTestTarget(regs *arch.Registers, fn func()) { regs.Pc = uint64(reflect.ValueOf(fn).Pointer()) diff --git a/pkg/sentry/platform/kvm/testutil/testutil_arm64.s b/pkg/sentry/platform/kvm/testutil/testutil_arm64.s index 6caf7282d..7348c29a5 100644 --- a/pkg/sentry/platform/kvm/testutil/testutil_arm64.s +++ b/pkg/sentry/platform/kvm/testutil/testutil_arm64.s @@ -50,6 +50,22 @@ TEXT ·SpinLoop(SB),NOSPLIT,$0 start: B start +TEXT ·TLSWorks(SB),NOSPLIT,$0-8 + NO_LOCAL_POINTERS + MOVD $0x6789, R5 + MSR R5, TPIDR_EL0 + MOVD $SYS_GETPID, R8 // getpid + SVC + MRS TPIDR_EL0, R6 + CMP R5, R6 + BNE isNaN + MOVD $1, R0 + MOVD R0, ret+0(FP) + RET +isNaN: + MOVD $0, ret+0(FP) + RET + TEXT ·FloatingPointWorks(SB),NOSPLIT,$0-8 NO_LOCAL_POINTERS // gc will touch fpsimd, so we should test it. |