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From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>,
	Maxim Levitsky <mlevitsk@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4] KVM: x86: Kill off pdptrs_changed()
Date: Fri, 23 Apr 2021 09:04:18 +0200	[thread overview]
Message-ID: <68ff1249-2902-43d5-3dfd-35b1f14c4f90@redhat.com> (raw)
In-Reply-To: <20210423000637.3692951-1-seanjc@google.com>

On 23/04/21 02:06, Sean Christopherson wrote:
> Remove pdptrs_changed(), which is mostly dead anyways, and the few bits
> that are still thrashing are useless.
> 
> This conflicts with Maxim's work to migrate PDPTRs out-of-band, but I
> think it will conflict in a good way as the "skip load_pdptrs()"
> logic for the out-of-band case won't have to juggle this legacy crud.

Maxim, can you integrate these patches in your series yourself?

Thanks,

Paolo

> Sean Christopherson (4):
>    KVM: nVMX: Drop obsolete (and pointless) pdptrs_changed() check
>    KVM: nSVM: Drop pointless pdptrs_changed() check on nested transition
>    KVM: x86: Always load PDPTRs on CR3 load for SVM w/o NPT and a PAE
>      guest
>    KVM: x86: Unexport kvm_read_guest_page_mmu()
> 
>   arch/x86/include/asm/kvm_host.h |  4 ----
>   arch/x86/kvm/svm/nested.c       |  6 ++---
>   arch/x86/kvm/vmx/nested.c       |  8 +++----
>   arch/x86/kvm/x86.c              | 41 ++++-----------------------------
>   4 files changed, 10 insertions(+), 49 deletions(-)
> 


      parent reply	other threads:[~2021-04-23  7:04 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-23  0:06 [PATCH 0/4] KVM: x86: Kill off pdptrs_changed() Sean Christopherson
2021-04-23  0:06 ` [PATCH 1/4] KVM: nVMX: Drop obsolete (and pointless) pdptrs_changed() check Sean Christopherson
2021-04-23  0:06 ` [PATCH 2/4] KVM: nSVM: Drop pointless pdptrs_changed() check on nested transition Sean Christopherson
2021-04-23  0:06 ` [PATCH 3/4] KVM: x86: Always load PDPTRs on CR3 load for SVM w/o NPT and a PAE guest Sean Christopherson
2021-04-23  0:06 ` [PATCH 4/4] KVM: x86: Unexport kvm_read_guest_page_mmu() Sean Christopherson
2021-04-23  7:04 ` Paolo Bonzini [this message]

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