10 Dec
2020
10 Dec
'20
1:01 p.m.
On Thu, Dec 10, 2020 at 01:22:02PM +0100, Paolo Bonzini wrote:
On 10/12/20 13:14, Peter Zijlstra wrote:
On Thu, Dec 10, 2020 at 12:42:36PM +0100, Paolo Bonzini wrote:
On 07/12/20 18:41, Thomas Gleixner wrote:
Right this happens still occasionally, but for quite some time this is 100% firmware sillyness and not a fundamental property of the hardware anymore.
It's still a fundamental property of old hardware. Last time I tried to kill support for processors earlier than Core 2, I had to revert it. That's older than Nehalem.
Core2 doesn't use TSC for timekeeping anyway. KVM shouldn't either.
On Core2, KVM guests pass TSC through kvmclock in order to get something usable and not incredibly slow.
Which is incredibly wrong.