Re: [PATCH] x86, hyperv: bypass the timer_irq_works() check

From: H. Peter Anvin
Date: Fri Jan 24 2014 - 16:20:41 EST


On 01/23/2014 10:02 PM, Jason Wang wrote:
> This patch bypass the timer_irq_works() check for hyperv guest since:
>
> - It was guaranteed to work.
> - timer_irq_works() may fail sometime due to the lpj calibration were inaccurate
> in a hyperv guest or a buggy host.
>
> In the future, we should get the tsc frequency from hypervisor and use preset
> lpj instead.
>
> Cc: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Cc: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>

This should be in -stable, right?

-hpa


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