From: Chao Gao <chao.gao@intel.com>
To: Sean Christopherson <seanjc@google.com>,
Maxim Levitsky <mlevitsk@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Zeng Guang <guang.zeng@intel.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Dave Hansen <dave.hansen@linux.intel.com>,
"Luck, Tony" <tony.luck@intel.com>,
Kan Liang <kan.liang@linux.intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Kim Phillips <kim.phillips@amd.com>,
Jarkko Sakkinen <jarkko@kernel.org>,
Jethro Beekman <jethro@fortanix.com>,
"Huang, Kai" <kai.huang@intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Hu, Robert" <robert.hu@intel.com>
Subject: Re: [PATCH v9 0/9] IPI virtualization support for VM
Date: Tue, 17 May 2022 22:02:23 +0800 [thread overview]
Message-ID: <20220517140218.GA569@gao-cwp> (raw)
In-Reply-To: <20220517135321.GA31556@gao-cwp>
+ 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?
>
>We can add a new inhibit to disable APICv if guest attempts to change APIC
>ID when IPIv (or AVIC) is enabled. Maxim also thinks using a new inhibit is
>the right direction [1].
>
>If no objection to this approach and Maxim doesn't have the patch, we can post
>one. But we will rely on Maxim to fix APIC ID mess for nested AVIC.
>
>[1] https://lore.kernel.org/all/6475522c58aec5db3ee0a5ccd3230c63a2f013a9.camel@redhat.com/
next prev parent reply other threads:[~2022-05-17 14:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-19 15:31 [PATCH v9 0/9] IPI virtualization support for VM Zeng Guang
2022-04-26 15:30 ` Zeng Guang
2022-05-02 16:18 ` Paolo Bonzini
[not found] ` <cf178428-8c98-e7b3-4317-8282938976fd@intel.com>
2022-05-03 9:39 ` Paolo Bonzini
2022-05-16 20:49 ` Sean Christopherson
2022-05-17 13:53 ` Chao Gao
2022-05-17 14:02 ` Chao Gao [this message]
2022-05-19 9:29 ` Chao Gao
2022-05-19 23:41 ` Sean Christopherson
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