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authorTianyu Lan <Tianyu.Lan@microsoft.com>2019-08-14 15:32:15 +0300
committerThomas Gleixner <tglx@linutronix.de>2019-08-23 17:59:53 +0300
commitadb87ff4f96c9700718e09c97a804124d5cd61ff (patch)
tree477a173e4b350b879c369d07e2af20f9bdfefff7 /arch/x86/hyperv
parentdce3e8fd039cc1b62760b3ad6822cf04c262cd0e (diff)
downloadlinux-adb87ff4f96c9700718e09c97a804124d5cd61ff.tar.xz
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
Diffstat (limited to 'arch/x86/hyperv')
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