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| author |   Tianyu Lan <Tianyu.Lan@microsoft.com> | 2019-08-14 20:32:15 +0800 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2019-08-23 16:59:53 +0200 |
| commit | adb87ff4f96c9700718e09c97a804124d5cd61ff (patch) | |
| tree | 477a173e4b350b879c369d07e2af20f9bdfefff7 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | posix-cpu-timers: Remove tsk argument from run_posix_cpu_timers() (diff) | |
| download | wireguard-linux-adb87ff4f96c9700718e09c97a804124d5cd61ff.tar.xz wireguard-linux-adb87ff4f96c9700718e09c97a804124d5cd61ff.zip | |
clocksource/drivers/hyperv: Allocate Hyper-V TSC page statically
Prepare to add Hyper-V sched clock callback and move Hyper-V Reference TSC
initialization much earlier in the boot process. Earlier initialization is
needed so that it happens while the timestamp value is still 0 and no
discontinuity in the timestamp will occur when pv_ops.time.sched_clock
calculates its offset.
The earlier initialization requires that the Hyper-V TSC page be allocated
statically instead of with vmalloc(), so fixup the references to the TSC
page and the method of getting its physical address.
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lkml.kernel.org/r/20190814123216.32245-2-Tianyu.Lan@microsoft.com
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