linux-kernel - Re: [PATCH v2 1/6] KVM: x86: don't allow kernel irqchip with split irqchip

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Date:   Tue, 3 Jan 2017 13:15:42 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Radim Krčmář <rkrcmar@...hat.com>,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH v2 1/6] KVM: x86: don't allow kernel irqchip with split
 irqchip

Am 16.12.2016 um 16:10 schrieb Radim Krčmář:
> Split irqchip cannot be created after creating the kernel irqchip, but
> we forgot to restrict the other way.  This is an API change.
>
> Reviewed-by: Paolo Bonzini <pbonzini@...hat.com>
> Signed-off-by: Radim Krčmář <rkrcmar@...hat.com>
> ---
>  v2: r-b Paolo
> ---
>  arch/x86/kvm/x86.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
> index 1f0d2383f5ee..e670591337af 100644
> --- a/arch/x86/kvm/x86.c
> +++ b/arch/x86/kvm/x86.c
> @@ -3939,7 +3939,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
>
>  		mutex_lock(&kvm->lock);
>  		r = -EEXIST;
> -		if (kvm->arch.vpic)
> +		if (irqchip_in_kernel(kvm))
>  			goto create_irqchip_unlock;
>  		r = -EINVAL;
>  		if (kvm->created_vcpus)
>

Reviewed-by: David Hildenbrand <david@...hat.com>

-- 

David