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);
+
+
#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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