On 03/12/2018 13:25, Andrew Jones wrote:

On Wed, Nov 28, 2018 at 02:45:15PM +0000, Steven Price wrote:

[...]

quoted

It implements support for Live Physical Time (LPT) which provides the
guest with a method to derive a stable counter of time during which the
guest is executing even when the guest is being migrated between hosts
with different physical counter frequencies.

Intel has TSC scaling. Is there any reason Arm is proposing a PV
solution instead of adding a similar virt extension?

Even if we were to add such an extension tomorrow, we need something
that works for today's system. Not to mention that "tomorrow in the
architecture" usually translates as "in silicon in 3 years"...

Thanks,

	M.
-- 
Jazz is not dead. It just smells funny...

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