Hi Marc, > -----Original Message----- > From: Marc Zyngier <maz@xxxxxxxxxx> > Sent: Thursday, January 9, 2020 5:46 PM > To: Jianyong Wu <Jianyong.Wu@xxxxxxx> > Cc: netdev@xxxxxxxxxxxxxxx; yangbo.lu@xxxxxxx; john.stultz@xxxxxxxxxx; > tglx@xxxxxxxxxxxxx; pbonzini@xxxxxxxxxx; sean.j.christopherson@xxxxxxxxx; > richardcochran@xxxxxxxxx; Mark Rutland <Mark.Rutland@xxxxxxx>; > will@xxxxxxxxxx; Suzuki Poulose <Suzuki.Poulose@xxxxxxx>; Steven Price > <Steven.Price@xxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx; kvmarm@xxxxxxxxxxxxxxxxxxxxx; > kvm@xxxxxxxxxxxxxxx; Steve Capper <Steve.Capper@xxxxxxx>; Kaly Xin > <Kaly.Xin@xxxxxxx>; Justin He <Justin.He@xxxxxxx>; nd <nd@xxxxxxx>; > kvm-owner@xxxxxxxxxxxxxxx > Subject: Re: [RFC PATCH v9 7/8] ptp: arm64: Enable ptp_kvm for arm64 > > On 2020-01-09 09:24, Marc Zyngier wrote: > > On 2020-01-09 05:59, Jianyong Wu wrote: > > [...] > > >> So we focus it on arm64. Also I have never tested it on arm32 machine > >> ( we lack of arm32 machine) > > > > I'm sure your employer can provide you with such a box. I can probably > > even tell you which cupboard they are stored in... ;-) > > > >> Do you think it's necessary to enable ptp_kvm on arm32? If so, I can > >> do that. > > > > I can't see why we wouldn't, given that it should be a zero effort > > task (none of the code here is arch specific). > > To be clear, what I'm after is support for 32bit *guests*. I don't expect any > issue with a 32bit host (it's all common code), but you should be able to test > 32bit guests pretty easily (most ARMv8.0 CPUs support 32bit EL1). > Get it Thanks Jianyong > M. > -- > Jazz is not dead. It just smells funny...