linux-kernel - Re: [PATCH v2] KVM: Optimize kvm_arch_vcpu_ioctl

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Message-ID: <b700f9bde1218b217ca4e571b1d29c1e@kernel.org>
Date:   Thu, 16 Apr 2020 09:58:45 +0100
From:   Marc Zyngier <maz@...nel.org>
To:     Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Cc:     Vitaly Kuznetsov <vkuznets@...hat.com>, kvm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
        linux-mips@...r.kernel.org, kvm-ppc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-kernel@...r.kernel.org, pbonzini@...hat.com,
        tsbogend@...ha.franken.de, paulus@...abs.org, mpe@...erman.id.au,
        benh@...nel.crashing.org, borntraeger@...ibm.com,
        frankja@...ux.ibm.com, david@...hat.com, cohuck@...hat.com,
        heiko.carstens@...ibm.com, gor@...ux.ibm.com,
        sean.j.christopherson@...el.com, wanpengli@...cent.com,
        jmattson@...gle.com, joro@...tes.org, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, x86@...nel.org, hpa@...or.com,
        james.morse@....com, julien.thierry.kdev@...il.com,
        suzuki.poulose@....com, christoffer.dall@....com,
        peterx@...hat.com, thuth@...hat.com
Subject: Re: [PATCH v2] KVM: Optimize kvm_arch_vcpu_ioctl_run function

On 2020-04-16 09:45, Tianjia Zhang wrote:
> On 2020/4/16 16:28, Marc Zyngier wrote:

[...]

>> Overall, there is a large set of cleanups to be done when both the 
>> vcpu and the run
>> structures are passed as parameters at the same time. Just grepping 
>> the tree for
>> kvm_run is pretty instructive.
>> 
>>          M.
> 
> Sorry, it's my mistake, I only compiled the x86 platform, I will
> submit patch again.

Not a mistake. All I'm saying is that there is an opportunity for a 
larger
series that cleans up the code base, rather than just doing a couple of
localized changes.

Thanks,

         M.
-- 
Jazz is not dead. It just smells funny...