Re: [PATCH RESEND v6 0/2] x86: Enable user wait instructions

2019-10-22 Thread Paolo Bonzini
On 11/10/19 09:41, Tao Xu wrote: > UMONITOR, UMWAIT and TPAUSE are a set of user wait instructions. > > UMONITOR arms address monitoring hardware using an address. A store > to an address within the specified address range triggers the > monitoring hardware to wake up the processor waiting in umwa

[PATCH RESEND v6 0/2] x86: Enable user wait instructions

2019-10-11 Thread Tao Xu
UMONITOR, UMWAIT and TPAUSE are a set of user wait instructions. UMONITOR arms address monitoring hardware using an address. A store to an address within the specified address range triggers the monitoring hardware to wake up the processor waiting in umwait. UMWAIT instructs the processor to ente