[PATCH 38/60] kvm: Make KVM_SIGNAL_MSI per plane
Jörg Rödel <[email protected]>
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From: Paolo Bonzini <[email protected]> Allow the KVM_SIGNAL_MSI ioctl for every plane instead of per VM. Signed-off-by: Paolo Bonzini <[email protected]> Co-developed-by: Joerg Roedel <[email protected]> Signed-off-by: Joerg Roedel <[email protected]> --- include/linux/kvm_host.h | 2 +- virt/kvm/irqchip.c | 4 ++-- virt/kvm/kvm_main.c | 25 ++++++++++++++----------- 3 files changed, 17 insertions(+), 14 deletions(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index cfb6911d6771..05a10836d92d 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -2370,7 +2370,7 @@ static inline int kvm_init_irq_routing(struct kvm *kvm) #endif -int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi); +int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi, unsigned plane_level); void kvm_eventfd_init(struct kvm *kvm); int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c index 14480d1df4f9..a4fea7d8dde6 100644 --- a/virt/kvm/irqchip.c +++ b/virt/kvm/irqchip.c @@ -45,7 +45,7 @@ int kvm_irq_map_chip_pin(struct kvm *kvm, unsigned irqchip, unsigned pin) return irq_rt->chip[irqchip][pin]; } -int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi) +int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi, unsigned plane_level) { struct kvm_kernel_irq_routing_entry route; @@ -57,7 +57,7 @@ int kvm_send_userspace_msi(struct kvm *kvm, struct kvm_msi *msi) route.msi.data = msi->data; route.msi.flags = msi->flags; route.msi.devid = msi->devid; - route.msi.plane_level = 0; + route.msi.plane_level = plane_level; return kvm_set_msi(&route, kvm, KVM_USERSPACE_IRQ_SOURCE_ID, 1, false); } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index a30123b77112..dc59f2f9d405 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -4907,6 +4907,17 @@ static long __kvm_plane_ioctl(struct kvm_plane *plane, unsigned int ioctl, unsig case KVM_CREATE_VCPU: r = kvm_plane_ioctl_create_vcpu(plane, arg); break; +#ifdef CONFIG_HAVE_KVM_MSI + case KVM_SIGNAL_MSI: { + void __user *argp = (void __user *)arg; + struct kvm_msi msi; + + if (copy_from_user(&msi, argp, sizeof(msi))) + return -EFAULT; + r = kvm_send_userspace_msi(plane->kvm, &msi, plane->level); + break; + } +#endif default: r = -ENOTTY; } @@ -5493,6 +5504,9 @@ static long kvm_vm_ioctl(struct file *filp, r = kvm_vm_ioctl_create_plane(kvm, arg); break; case KVM_CREATE_VCPU: +#ifdef CONFIG_HAVE_KVM_MSI + case KVM_SIGNAL_MSI: +#endif r = __kvm_plane_ioctl(kvm->planes[0], ioctl, arg); break; case KVM_ENABLE_CAP: { @@ -5597,17 +5611,6 @@ static long kvm_vm_ioctl(struct file *filp, r = kvm_ioeventfd(kvm, &data); break; } -#ifdef CONFIG_HAVE_KVM_MSI - case KVM_SIGNAL_MSI: { - struct kvm_msi msi; - - r = -EFAULT; - if (copy_from_user(&msi, argp, sizeof(msi))) - goto out; - r = kvm_send_userspace_msi(kvm, &msi); - break; - } -#endif #ifdef __KVM_HAVE_IRQ_LINE case KVM_IRQ_LINE_STATUS: case KVM_IRQ_LINE: { -- 2.53.0 -- kvm-riscv mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kvm-riscv