linux-kernel - Re: [PATCH 5/5] KVM: LAPIC: add APIC Timer periodic/oneshot mode VMX preemption timer support

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 linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CANRm+CwP1H7V0cCvwdok-oc3J3nY2HLHuWK_jnjqLUBpoX8OJg@mail.gmail.com>
Date:   Fri, 21 Oct 2016 21:38:44 +0800
From:   Wanpeng Li <kernellwp@...il.com>
To:     Radim Krčmář <rkrcmar@...hat.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        kvm <kvm@...r.kernel.org>, Paolo Bonzini <pbonzini@...hat.com>,
        Yunhong Jiang <yunhong.jiang@...el.com>,
        Wanpeng Li <wanpeng.li@...mail.com>
Subject: Re: [PATCH 5/5] KVM: LAPIC: add APIC Timer periodic/oneshot mode VMX
 preemption timer support

2016-10-21 2:10 GMT+08:00 Radim Krčmář <rkrcmar@...hat.com>:
> 2016-10-20 06:57+0800, Wanpeng Li:
>> 2016-10-20 3:28 GMT+08:00 Radim Krčmář <rkrcmar@...hat.com>:
>>> I think it would be better to add a function to advance the periodic
>>> timer and use it in kvm_lapic_expired_hv_timer() and in apic_timer_fn().
>>>
>>> The function can be simpler than set_target_expiration(), because it
>>> just adds the period to an existing timer.  Periodic timer will also be
>>> better then, because the period will not depend on KVM's latency when
>>> rearming.
>>
>> Good point, what's the function name do you like? How about
>> advance_target_expiration()?
>
> Sounds good, I'd just slap periodic somewhere,
> advance_periodic_target_expiration()?

Cool, thanks for your review. :)

Regards,
Wanpeng Li