On Mon, Sep 23, 2019 at 06:41:10PM +1000, Alexey Kardashevskiy wrote:
> On POWER8 systems the Directed Privileged Door-bell Exception State
> register (DPDES) stores doorbell pending status, one bit per a thread
> of a core, set by "msgsndp" instruction. The register is shared among
> threads of th
On POWER8 systems the Directed Privileged Door-bell Exception State
register (DPDES) stores doorbell pending status, one bit per a thread
of a core, set by "msgsndp" instruction. The register is shared among
threads of the same core and KVM on POWER9 emulates it in a similar way
(POWER9 does not ha