linux-kernel - Re: [PATCH v9 0/9] IPI virtualization support for VM

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Message-ID: <20220519092906.GA3234@gao-cwp>
Date:   Thu, 19 May 2022 17:29:12 +0800
From:   Chao Gao <chao.gao@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Maxim Levitsky <mlevitsk@...hat.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Zeng Guang <guang.zeng@...el.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "Luck, Tony" <tony.luck@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        Kim Phillips <kim.phillips@....com>,
        Jarkko Sakkinen <jarkko@...nel.org>,
        Jethro Beekman <jethro@...tanix.com>,
        "Huang, Kai" <kai.huang@...el.com>,
        "x86@...nel.org" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Hu, Robert" <robert.hu@...el.com>
Subject: Re: [PATCH v9 0/9] IPI virtualization support for VM

On Tue, May 17, 2022 at 10:02:23PM +0800, Chao Gao wrote:
>+ Maxim
>
>On Tue, May 17, 2022 at 09:53:26PM +0800, Chao Gao wrote:
>>On Mon, May 16, 2022 at 08:49:52PM +0000, Sean Christopherson wrote:
>>>On Tue, May 03, 2022, Paolo Bonzini wrote:
>>>> On 5/3/22 09:32, Zeng Guang wrote:
>>>> > 
>>>> > I don't see "[PATCH v9 4/9] KVM: VMX: Report tertiary_exec_control field in
>>>> > dump_vmcs()" in kvm/queue. Does it not need ?
>>>> 
>>>> Added now (somehow the patches were not threaded, so I had to catch them one
>>>> by one from lore).
>>>> 
>>>> > Selftests for KVM_CAP_MAX_VCPU_ID is posted in V2 which is revised on top of
>>>> > kvm/queue.
>>>> > ([PATCH v2] kvm: selftests: Add KVM_CAP_MAX_VCPU_ID cap test - Zeng
>>>> > Guang (kernel.org) <https://lore.kernel.org/lkml/20220503064037.10822-1-guang.zeng@intel.com/>)
>>>> 
>>>> Queued, thanks.
>>>
>>>Shouldn't we have a solution for the read-only APIC_ID mess before this is merged?

Paolo & Sean,

If a solution for read-only APIC ID mess is needed before merging IPIv
series, do you think the Maxim's patch [1] after some improvement will
suffice? Let us know if there is any gap.

[1]: https://lore.kernel.org/all/20220427200314.276673-3-mlevitsk@redhat.com/