diff options
| -rw-r--r-- | pkg/sentry/platform/kvm/BUILD | 1 | ||||
| -rw-r--r-- | pkg/sentry/platform/kvm/kvm_arm64_test.go | 31 | ||||
| -rw-r--r-- | pkg/sentry/platform/kvm/testutil/testutil_arm64.go | 5 | ||||
| -rw-r--r-- | pkg/sentry/platform/kvm/testutil/testutil_arm64.s | 16 |
4 files changed, 53 insertions, 0 deletions
diff --git a/pkg/sentry/platform/kvm/BUILD b/pkg/sentry/platform/kvm/BUILD index dd2bbeb12..8ce411102 100644 --- a/pkg/sentry/platform/kvm/BUILD +++ b/pkg/sentry/platform/kvm/BUILD @@ -64,6 +64,7 @@ go_test( name = "kvm_test", srcs = [ "kvm_amd64_test.go", + "kvm_arm64_test.go", "kvm_test.go", "virtual_map_test.go", ], diff --git a/pkg/sentry/platform/kvm/kvm_arm64_test.go b/pkg/sentry/platform/kvm/kvm_arm64_test.go new file mode 100644 index 000000000..0e3d84d95 --- /dev/null +++ b/pkg/sentry/platform/kvm/kvm_arm64_test.go @@ -0,0 +1,31 @@ +// Copyright 2020 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// +build arm64 + +package kvm + +import ( + "testing" + + "gvisor.dev/gvisor/pkg/sentry/platform/kvm/testutil" +) + +func TestKernelTLS(t *testing.T) { + bluepillTest(t, func(c *vCPU) { + if !testutil.TLSWorks() { + t.Errorf("tls does not work, and it should!") + } + }) +} 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. |