On Wed, Dec 03, 2014 at 05:07:10PM +0100, Eric Auger wrote:
> on arm/arm64 the VGIC is dynamically instantiated and it is useful
> to expose its state, especially for irqfd setup.
>
> This patch defines __KVM_HAVE_ARCH_VIRTUAL_INTC_INITIALIZED
> and implements kvm_arch_is_virtual_intc_initialized
>
> Signed-off-by: Eric Auger <eric.auger@xxxxxxxxxx>
> ---
> arch/arm/include/asm/kvm_host.h | 6 ++++++
> arch/arm/kvm/arm.c | 5 +++++
> arch/arm64/include/asm/kvm_host.h | 5 +++++
> 3 files changed, 16 insertions(+)
>
> diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
> index 53036e2..fe2c89b 100644
> --- a/arch/arm/include/asm/kvm_host.h
> +++ b/arch/arm/include/asm/kvm_host.h
> @@ -27,6 +27,8 @@
> #include <asm/fpstate.h>
> #include <kvm/arm_arch_timer.h>
>
> +#define __KVM_HAVE_ARCH_VIRTUAL_INTC_INITIALIZED
> +
> #if defined(CONFIG_KVM_ARM_MAX_VCPUS)
> #define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
> #else
> @@ -242,4 +244,8 @@ static inline void kvm_arch_sync_events(struct kvm *kvm) {}
> static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
> static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
>
> +/* returns true if the vgic dynamic initialization is done*/
> +bool kvm_arch_is_virtual_intc_initialized(struct kvm *kvm);
I feel like this should go in include/linux/kvm_host.h where there's
already a description of the function API.
> +
> +
> #endif /* __ARM_KVM_HOST_H__ */
> diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
> index 9e193c8..5309e4b 100644
> --- a/arch/arm/kvm/arm.c
> +++ b/arch/arm/kvm/arm.c
> @@ -439,6 +439,11 @@ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
> return 0;
> }
>
> +bool kvm_arch_is_virtual_intc_initialized(struct kvm *kvm)
> +{
> + return vgic_initialized(kvm);
> +}
> +
> static void vcpu_pause(struct kvm_vcpu *vcpu)
> {
> wait_queue_head_t *wq = kvm_arch_vcpu_wq(vcpu);
> diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> index 2012c4b..5badd30 100644
> --- a/arch/arm64/include/asm/kvm_host.h
> +++ b/arch/arm64/include/asm/kvm_host.h
> @@ -28,6 +28,8 @@
> #include <asm/kvm_asm.h>
> #include <asm/kvm_mmio.h>
>
> +#define __KVM_HAVE_ARCH_VIRTUAL_INTC_INITIALIZED
> +
> #if defined(CONFIG_KVM_ARM_MAX_VCPUS)
> #define KVM_MAX_VCPUS CONFIG_KVM_ARM_MAX_VCPUS
> #else
> @@ -254,4 +256,7 @@ static inline void kvm_arch_sync_events(struct kvm *kvm) {}
> static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
> static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
>
> +/* returns true if the vgic dynamic initialization is done*/
> +bool kvm_arch_is_virtual_intc_initialized(struct kvm *kvm);
> +
> #endif /* __ARM64_KVM_HOST_H__ */
> --
> 1.9.1
>
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