linux-kernel - Re: [RFC 11/19] KVM: x86/mmu: Factor shadow_zero_check out of make

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Message-ID: <YYx1mDJo/L79cKOH@google.com>
Date:   Thu, 11 Nov 2021 01:44:56 +0000
From:   Sean Christopherson <seanjc@...gle.com>
To:     Ben Gardon <bgardon@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, Peter Xu <peterx@...hat.com>,
        Peter Shier <pshier@...gle.com>,
        David Matlack <dmatlack@...gle.com>,
        Mingwei Zhang <mizhang@...gle.com>,
        Yulei Zhang <yulei.kernel@...il.com>,
        Wanpeng Li <kernellwp@...il.com>,
        Xiao Guangrong <xiaoguangrong.eric@...il.com>,
        Kai Huang <kai.huang@...el.com>,
        Keqian Zhu <zhukeqian1@...wei.com>,
        David Hildenbrand <david@...hat.com>
Subject: Re: [RFC 11/19] KVM: x86/mmu: Factor shadow_zero_check out of
 make_spte

On Thu, Nov 11, 2021, Sean Christopherson wrote:
> These are all related to guest context:
> 	int (*page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault);
> 	void (*inject_page_fault)(struct kvm_vcpu *vcpu,
> 				  struct x86_exception *fault);

That's incorrect, page_fault() and inject_page_fault() could be per-VM.  Neither
is particularly interesting though.