diff options
Diffstat (limited to 'pkg/sentry')
| -rw-r--r-- | pkg/sentry/platform/kvm/machine.go | 3 | ||||
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_time.go | 9 | ||||
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_timerfd.go | 2 |
3 files changed, 12 insertions, 2 deletions
diff --git a/pkg/sentry/platform/kvm/machine.go b/pkg/sentry/platform/kvm/machine.go index 679087e25..cc6c138b2 100644 --- a/pkg/sentry/platform/kvm/machine.go +++ b/pkg/sentry/platform/kvm/machine.go @@ -388,7 +388,10 @@ func (m *machine) Get() *vCPU { func (m *machine) Put(c *vCPU) { c.unlock() runtime.UnlockOSThread() + + m.mu.RLock() m.available.Signal() + m.mu.RUnlock() } // newDirtySet returns a new dirty set. diff --git a/pkg/sentry/syscalls/linux/sys_time.go b/pkg/sentry/syscalls/linux/sys_time.go index fe8725191..4b3f043a2 100644 --- a/pkg/sentry/syscalls/linux/sys_time.go +++ b/pkg/sentry/syscalls/linux/sys_time.go @@ -121,8 +121,15 @@ func getClock(t *kernel.Task, clockID int32) (ktime.Clock, error) { switch clockID { case linux.CLOCK_REALTIME, linux.CLOCK_REALTIME_COARSE: return t.Kernel().RealtimeClock(), nil - case linux.CLOCK_MONOTONIC, linux.CLOCK_MONOTONIC_COARSE, linux.CLOCK_MONOTONIC_RAW: + case linux.CLOCK_MONOTONIC, linux.CLOCK_MONOTONIC_COARSE, + linux.CLOCK_MONOTONIC_RAW, linux.CLOCK_BOOTTIME: // CLOCK_MONOTONIC approximates CLOCK_MONOTONIC_RAW. + // CLOCK_BOOTTIME is internally mapped to CLOCK_MONOTONIC, as: + // - CLOCK_BOOTTIME should behave as CLOCK_MONOTONIC while also + // including suspend time. + // - gVisor has no concept of suspend/resume. + // - CLOCK_MONOTONIC already includes save/restore time, which is + // the closest to suspend time. return t.Kernel().MonotonicClock(), nil case linux.CLOCK_PROCESS_CPUTIME_ID: return t.ThreadGroup().CPUClock(), nil diff --git a/pkg/sentry/syscalls/linux/sys_timerfd.go b/pkg/sentry/syscalls/linux/sys_timerfd.go index 1ce5ce4c3..cf49b43db 100644 --- a/pkg/sentry/syscalls/linux/sys_timerfd.go +++ b/pkg/sentry/syscalls/linux/sys_timerfd.go @@ -37,7 +37,7 @@ func TimerfdCreate(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel switch clockID { case linux.CLOCK_REALTIME: c = t.Kernel().RealtimeClock() - case linux.CLOCK_MONOTONIC: + case linux.CLOCK_MONOTONIC, linux.CLOCK_BOOTTIME: c = t.Kernel().MonotonicClock() default: return 0, nil, syserror.EINVAL |