This adds the API for userspace to instantiate an XICS device in a VM and connect VCPUs to it. The API consists of a new device type for the KVM_CREATE_DEVICE ioctl, a new capability KVM_CAP_IRQ_XICS, which functions similarly to KVM_CAP_IRQ_MPIC, and the KVM_IRQ_LINE ioctl, which is used to assert and deassert interrupt inputs of the XICS. The XICS device has one attribute group, KVM_DEV_XICS_GRP_SOURCES. Each attribute within this group corresponds to the state of one interrupt source. The attribute number is the same as the interrupt source number. This does not support irq routing or irqfd yet.
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| @@ -665,6 +665,7 @@ struct kvm_ppc_smmu_info { · 664 unmodified lines | ||
| 665 | 665 | #define KVM_CAP_DEVICE_CTRL 89 |
| 666 | 666 | #define KVM_CAP_IRQ_MPIC 90 |
| 667 | 667 | #define KVM_CAP_PPC_RTAS 91 |
| 668 | +#define KVM_CAP_IRQ_XICS 92 | |
| 668 | 669 | |
| 669 | 670 | #ifdef KVM_CAP_IRQ_ROUTING |
| 670 | 671 | |
| @@ -837,6 +838,7 @@ struct kvm_device_attr { · 166 unmodified lines | ||
| 837 | 838 | |
| 838 | 839 | #define KVM_DEV_TYPE_FSL_MPIC_20 1 |
| 839 | 840 | #define KVM_DEV_TYPE_FSL_MPIC_42 2 |
| 841 | +#define KVM_DEV_TYPE_XICS 3 | |
| 840 | 842 | |
| 841 | 843 | /* |
| 842 | 844 | * ioctls for VM fds |