linux-kernel - Re: [PATCH v3] kvm/x86 : Remove redundant function implement

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Date:   Thu, 21 May 2020 15:36:37 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Vitaly Kuznetsov <vkuznets@...hat.com>,
        彭浩(Richard) <richard.peng@...o.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>
Subject: Re: [PATCH v3] kvm/x86 : Remove redundant function implement

On 21/05/20 11:27, Vitaly Kuznetsov wrote:
> 彭浩(Richard) <richard.peng@...o.com> writes:
> 
>> pic_in_kernel(),ioapic_in_kernel() and irqchip_kernel() have the
>> same implementation.
> 'pic_in_kernel()' name is misleading, one may think this is about lapic
> and it's not. Also, ioapic_in_kernel() doesn't have that many users, can
> we maybe converge on using irqchip_*() functions everywhere?
> 

Richard's patch was my recommendation actually.

PIC is not the LAPIC and not the IOAPIC; even though right now the
implementation is the same for pic_in_kernel and ioapic_in_kernel and
irqchip_kernel(), that's more or less an implementation detail.

Paolo