linux-kernel - Re: [PATCH 1/8] KVM: x86: avoid loading a vCPU after .vm

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Message-ID: <68707ba71f3e03d9d9a7bc5b0f592fb3cef2f776.camel@redhat.com>
Date:   Thu, 28 Apr 2022 08:47:13 +0300
From:   Maxim Levitsky <mlevitsk@...hat.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>
Cc:     kvm@...r.kernel.org, Jim Mattson <jmattson@...gle.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Borislav Petkov <bp@...en8.de>, Joerg Roedel <joro@...tes.org>,
        Ingo Molnar <mingo@...hat.com>,
        Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        linux-kernel@...r.kernel.org,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>, stable@...r.kernel.org
Subject: Re: [PATCH 1/8] KVM: x86: avoid loading a vCPU after .vm_destroy
 was called

On Wed, 2022-03-30 at 14:07 +0200, Paolo Bonzini wrote:
> On 3/30/22 02:27, Sean Christopherson wrote:
> > Rather than split kvm_free_vcpus(), can we instead move the call to svm_vm_destroy()
> > by adding a second hook, .vm_teardown(), which is needed for TDX?  I.e. keep VMX
> > where it is by using vm_teardown, but effectively move SVM?
> > 
> > https://lore.kernel.org/all/1fa2d0db387a99352d44247728c5b8ae5f5cab4d.1637799475.git.isaku.yamahata@intel.com
> 
> I'd rather do that only for the TDX patches.
> 
> Paolo
> 
Any update on this patch? Looks like it is not upstream nor in kvm/queue.

Best regards,
	Maxim Levitsky