linux-kernel - Re: [PATCH 05/14] KVM: x86: Remove unnecessary export of kvm_inject_page

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Date:   Thu, 1 Dec 2022 10:08:10 +0800
From:   Like Xu <like.xu.linux@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/14] KVM: x86: Remove unnecessary export of
 kvm_inject_page_fault()

On 1/12/2022 10:04 am, Sean Christopherson wrote:
> On Mon, Nov 14, 2022, Like Xu wrote:
>> From: Like Xu <likexu@...cent.com>
>>
>> Don't export x86's kvm_inject_page_fault(), the helper isn't used by
>> KVM x86's vendor modules. Add declaration to header file out of
>> existing callers' need.
> 
> ...
> 
>> diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
>> index 9de72586f406..69811b4f3eac 100644
>> --- a/arch/x86/kvm/x86.h
>> +++ b/arch/x86/kvm/x86.h
>> @@ -307,6 +307,7 @@ int x86_decode_emulated_instruction(struct kvm_vcpu *vcpu, int emulation_type,
>>   int x86_emulate_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
>>   			    int emulation_type, void *insn, int insn_len);
>>   fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu);
>> +void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
> 
> arch/x86/include/asm/kvm_host.h already has a definition, no need for one here.
> The definition could obviously be moved, but I'd prefer not to bother at this time
> as I want to move _all_ of kvm_host.h out of the "public" include directories (WIP).

Great, we may need more decoupling at the code level.