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From: Marc Zyngier <marc.zyngier@arm.com>
To: Christoffer Dall <christoffer.dall@linaro.org>,
	"kvmarm@lists.cs.columbia.edu" <kvmarm@lists.cs.columbia.edu>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH 2/5] arm/arm64: KVM: Rename vgic_initialized to vgic_ready
Date: Thu, 11 Dec 2014 18:26:23 +0000	[thread overview]
Message-ID: <5489E1CF.3030909@arm.com> (raw)
In-Reply-To: <1418139844-27892-3-git-send-email-christoffer.dall@linaro.org>

On 09/12/14 15:44, Christoffer Dall wrote:
> The vgic_initialized() macro currently returns the state of the
> vgic->ready flag, which indicates if the vgic is ready to be used when
> running a VM, not specifically if its internal state has been
> initialized.
> 
> Rename the macro accordingly in preparation for a more nuanced
> initialization flow.
> 
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
> ---
>  arch/arm/kvm/arm.c     | 2 +-
>  include/kvm/arm_vgic.h | 4 ++--
>  virt/kvm/arm/vgic.c    | 6 +++---
>  3 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
> index a56cbb5..a9d005f 100644
> --- a/arch/arm/kvm/arm.c
> +++ b/arch/arm/kvm/arm.c
> @@ -430,7 +430,7 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
>  	 * Map the VGIC hardware resources before running a vcpu the first
>  	 * time on this VM.
>  	 */
> -	if (unlikely(!vgic_initialized(vcpu->kvm))) {
> +	if (unlikely(!vgic_ready(vcpu->kvm))) {
>  		ret = kvm_vgic_map_resources(vcpu->kvm);
>  		if (ret)
>  			return ret;
> diff --git a/include/kvm/arm_vgic.h b/include/kvm/arm_vgic.h
> index fe9783b..3e262b9 100644
> --- a/include/kvm/arm_vgic.h
> +++ b/include/kvm/arm_vgic.h
> @@ -287,7 +287,7 @@ bool vgic_handle_mmio(struct kvm_vcpu *vcpu, struct kvm_run *run,
>  		      struct kvm_exit_mmio *mmio);
>  
>  #define irqchip_in_kernel(k)	(!!((k)->arch.vgic.in_kernel))
> -#define vgic_initialized(k)	((k)->arch.vgic.ready)
> +#define vgic_ready(k)		((k)->arch.vgic.ready)
>  
>  int vgic_v2_probe(struct device_node *vgic_node,
>  		  const struct vgic_ops **ops,
> @@ -369,7 +369,7 @@ static inline int irqchip_in_kernel(struct kvm *kvm)
>  	return 0;
>  }
>  
> -static inline bool vgic_initialized(struct kvm *kvm)
> +static inline bool vgic_ready(struct kvm *kvm)
>  {
>  	return true;
>  }
> diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c
> index 91e6bfc..6293349 100644
> --- a/virt/kvm/arm/vgic.c
> +++ b/virt/kvm/arm/vgic.c
> @@ -1693,7 +1693,7 @@ out:
>  int kvm_vgic_inject_irq(struct kvm *kvm, int cpuid, unsigned int irq_num,
>  			bool level)
>  {
> -	if (likely(vgic_initialized(kvm)) &&
> +	if (likely(vgic_ready(kvm)) &&
>  	    vgic_update_irq_pending(kvm, cpuid, irq_num, level))
>  		vgic_kick_vcpus(kvm);
>  
> @@ -1882,7 +1882,7 @@ int kvm_vgic_map_resources(struct kvm *kvm)
>  
>  	mutex_lock(&kvm->lock);
>  
> -	if (vgic_initialized(kvm))
> +	if (vgic_ready(kvm))
>  		goto out;
>  
>  	if (IS_VGIC_ADDR_UNDEF(kvm->arch.vgic.vgic_dist_base) ||
> @@ -2276,7 +2276,7 @@ static int vgic_set_attr(struct kvm_device *dev, struct kvm_device_attr *attr)
>  
>  		mutex_lock(&dev->kvm->lock);
>  
> -		if (vgic_initialized(dev->kvm) || dev->kvm->arch.vgic.nr_irqs)
> +		if (vgic_ready(dev->kvm) || dev->kvm->arch.vgic.nr_irqs)
>  			ret = -EBUSY;
>  		else
>  			dev->kvm->arch.vgic.nr_irqs = val;
> 

Acked-by: Marc Zyngier <marc.zyngier@arm.com>

	M.
-- 
Jazz is not dead. It just smells funny...

  reply	other threads:[~2014-12-11 18:26 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-09 15:43 [PATCH 0/5] Fix vgic initialization problems Christoffer Dall
2014-12-09 15:44 ` [PATCH 1/5] arm/arm64: KVM: vgic: move reset initialization into vgic_init_maps() Christoffer Dall
2014-12-10 10:11   ` Eric Auger
2014-12-11 11:48     ` Christoffer Dall
2014-12-11 18:25       ` Marc Zyngier
2014-12-09 15:44 ` [PATCH 2/5] arm/arm64: KVM: Rename vgic_initialized to vgic_ready Christoffer Dall
2014-12-11 18:26   ` Marc Zyngier [this message]
2014-12-09 15:44 ` [PATCH 3/5] arm/arm64: KVM: Add (new) vgic_initialized macro Christoffer Dall
2014-12-10 10:27   ` Eric Auger
2014-12-11 11:48     ` Christoffer Dall
2014-12-11 18:28   ` Marc Zyngier
2014-12-09 15:44 ` [PATCH 4/5] arm/arm64: KVM: Don't allow creating VCPUs after vgic_initialized Christoffer Dall
2014-12-10 12:35   ` Eric Auger
2014-12-11 11:55     ` Christoffer Dall
2014-12-11 18:30   ` Marc Zyngier
2014-12-09 15:44 ` [PATCH 5/5] arm/arm64: KVM: Initialize the vgic on-demand when injecting IRQs Christoffer Dall
2014-12-10 12:45   ` Eric Auger
2014-12-11 12:01     ` Christoffer Dall
2014-12-11 12:38       ` Eric Auger
2014-12-12 11:06         ` Christoffer Dall
2014-12-15 10:43           ` Eric Auger
2014-12-11 18:35   ` Marc Zyngier
2014-12-12 11:14     ` Christoffer Dall
2014-12-12 11:23       ` Marc Zyngier
2014-12-12 11:37         ` Christoffer Dall
2014-12-12 20:24           ` Christoffer Dall

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