From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger Subject: Re: [PATCH v5 3/5] KVM: arm/arm64: implement kvm_arch_is_virtual_intc_initialized Date: Mon, 12 Jan 2015 14:40:15 +0100 Message-ID: <54B3CEBF.3020108@linaro.org> References: <1417622832-5460-1-git-send-email-eric.auger@linaro.org> <1417622832-5460-4-git-send-email-eric.auger@linaro.org> <20150111211250.GE3868@cbox> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: eric.auger@st.com, marc.zyngier@arm.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, alex.williamson@redhat.com, agraf@suse.de, joel.schopp@amd.com, gleb@kernel.org, pbonzini@redhat.com, borntraeger@de.ibm.com, cornelia.huck@de.ibm.com, linux-kernel@vger.kernel.org, patches@linaro.org, a.motakis@virtualopensystems.com To: Christoffer Dall Return-path: In-Reply-To: <20150111211250.GE3868@cbox> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 01/11/2015 10:12 PM, Christoffer Dall wrote: > 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 >> --- >> 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 >> #include >> >> +#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. agreed Eric > >> + >> + >> #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 >> #include >> >> +#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 >>