From: Suzuki K Poulose <[email protected]> Allow the arch backends to perform VM specific initialisation. This will be later used to handle IPA size configuration and per-VM VTCR configuration on arm64.
Cc: Marc Zyngier <[email protected]> Cc: Christoffer Dall <[email protected]> Reviewed-by: Eric Auger <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> --- arch/arm/include/asm/kvm_host.h | 7 +++++++ arch/arm64/include/asm/kvm_host.h | 2 ++ arch/arm64/kvm/reset.c | 7 +++++++ virt/kvm/arm/arm.c | 5 +++-- 4 files changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h index 3ad482d2f1eb..72d46418e1ef 100644 --- a/arch/arm/include/asm/kvm_host.h +++ b/arch/arm/include/asm/kvm_host.h @@ -354,4 +354,11 @@ static inline void kvm_vcpu_put_sysregs(struct kvm_vcpu *vcpu) {} struct kvm *kvm_arch_alloc_vm(void); void kvm_arch_free_vm(struct kvm *kvm); +static inline int kvm_arm_config_vm(struct kvm *kvm, unsigned long type) +{ + if (type) + return -EINVAL; + return 0; +} + #endif /* __ARM_KVM_HOST_H__ */ diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 3d6d7336f871..b04280ae1be0 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -513,4 +513,6 @@ void kvm_vcpu_put_sysregs(struct kvm_vcpu *vcpu); struct kvm *kvm_arch_alloc_vm(void); void kvm_arch_free_vm(struct kvm *kvm); +int kvm_arm_config_vm(struct kvm *kvm, unsigned long type); + #endif /* __ARM64_KVM_HOST_H__ */ diff --git a/arch/arm64/kvm/reset.c b/arch/arm64/kvm/reset.c index e37c78bbe1ca..b0c07dab5cb3 100644 --- a/arch/arm64/kvm/reset.c +++ b/arch/arm64/kvm/reset.c @@ -133,3 +133,10 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu) /* Reset timer */ return kvm_timer_vcpu_reset(vcpu); } + +int kvm_arm_config_vm(struct kvm *kvm, unsigned long type) +{ + if (type) + return -EINVAL; + return 0; +} diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c index c92053bc3f96..327d0fd28380 100644 --- a/virt/kvm/arm/arm.c +++ b/virt/kvm/arm/arm.c @@ -120,8 +120,9 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type) { int ret, cpu; - if (type) - return -EINVAL; + ret = kvm_arm_config_vm(kvm, type); + if (ret) + return ret; kvm->arch.last_vcpu_ran = alloc_percpu(typeof(*kvm->arch.last_vcpu_ran)); if (!kvm->arch.last_vcpu_ran) -- 2.19.1 _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
