lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Mon, 23 Sep 2019 04:57:57 +0000 From: "Jianyong Wu (Arm Technology China)" <Jianyong.Wu@....com> To: Paolo Bonzini <pbonzini@...hat.com>, "netdev@...r.kernel.org" <netdev@...r.kernel.org>, "yangbo.lu@....com" <yangbo.lu@....com>, "john.stultz@...aro.org" <john.stultz@...aro.org>, "tglx@...utronix.de" <tglx@...utronix.de>, "sean.j.christopherson@...el.com" <sean.j.christopherson@...el.com>, "maz@...nel.org" <maz@...nel.org>, "richardcochran@...il.com" <richardcochran@...il.com>, Mark Rutland <Mark.Rutland@....com>, Will Deacon <Will.Deacon@....com>, Suzuki Poulose <Suzuki.Poulose@....com> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "kvm@...r.kernel.org" <kvm@...r.kernel.org>, Steve Capper <Steve.Capper@....com>, "Kaly Xin (Arm Technology China)" <Kaly.Xin@....com>, "Justin He (Arm Technology China)" <Justin.He@....com>, nd <nd@....com>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: RE: [RFC PATCH v3 4/6] psci: Add hvc call service for ptp_kvm. Hi Paolo, Marc > -----Original Message----- > From: Paolo Bonzini <pbonzini@...hat.com> > Sent: Thursday, September 19, 2019 7:07 PM > To: Jianyong Wu (Arm Technology China) <Jianyong.Wu@....com>; > netdev@...r.kernel.org; yangbo.lu@....com; john.stultz@...aro.org; > tglx@...utronix.de; sean.j.christopherson@...el.com; maz@...nel.org; > richardcochran@...il.com; Mark Rutland <Mark.Rutland@....com>; Will > Deacon <Will.Deacon@....com>; Suzuki Poulose > <Suzuki.Poulose@....com> > Cc: linux-kernel@...r.kernel.org; kvm@...r.kernel.org; Steve Capper > <Steve.Capper@....com>; Kaly Xin (Arm Technology China) > <Kaly.Xin@....com>; Justin He (Arm Technology China) > <Justin.He@....com>; nd <nd@....com>; linux-arm- > kernel@...ts.infradead.org > Subject: Re: [RFC PATCH v3 4/6] psci: Add hvc call service for ptp_kvm. > > On 19/09/19 11:46, Jianyong Wu (Arm Technology China) wrote: > >> On 18/09/19 11:57, Jianyong Wu (Arm Technology China) wrote: > >>> Paolo Bonzini wrote: > >>>> This is not Y2038-safe. Please use ktime_get_real_ts64 instead, > >>>> and split the 64-bit seconds value between val[0] and val[1]. > > > > Val[] should be long not u32 I think, so in arm64 I can avoid that > > Y2038_safe, but also need rewrite for arm32. > > I don't think there's anything inherently wrong with u32 val[], and as you > notice it lets you reuse code between arm and arm64. It's up to you and > Marc to decide. > To compatible 32-bit, Integrates second value and nanosecond value as a nanosecond value then split it into val[0] and val[1] and split cycle value into val[2] and val[3], In this way, time will overflow at Y2262. WDYT? Thanks Jianyong Wu
Powered by blists - more mailing lists