# # requires: arch=arm64 -threaded # r0 = openat$kvm(0, &AUTO='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, AUTO, 0x0) r2 = syz_kvm_setup_syzos_vm$arm64(r1, &(0x7f0000c00000/0x400000)=nil) r3 = syz_kvm_add_vcpu$arm64(r2, &AUTO={0x0, &AUTO=[@irq_setup={AUTO, AUTO, {0x1, 0x20}}, @its_setup={AUTO, AUTO, {0x1, 0x1, 0x1}}], AUTO}, 0x0, 0x0) syz_kvm_vgic_v3_setup(r1, 0x1, 0x100) # # Set up ITS device with redistributor at address 0x08080000 (declared at executor/kvm.h): # 1. Create KVM_DEV_TYPE_ARM_VGIC_ITS. # ioctl$KVM_CREATE_DEVICE(r1, AUTO, &AUTO={0x8, 0xffffffffffffffff, 0x0}) # # 2. Set device attribute {KVM_DEV_ARM_VGIC_GRP_ADDR, KVM_VGIC_ITS_ADDR_TYPE, &addr=0x08080000}. # ioctl$KVM_SET_DEVICE_ATTR(r4, AUTO, &AUTO=@attr_arm64={0x0, 0x0, 0x4, &AUTO=0x08080000}) # # 3. Set device attribute {KVM_DEV_ARM_VGIC_GRP_CTRL, KVM_DEV_ARM_VGIC_CTRL_INIT, 0}. # ioctl$KVM_SET_DEVICE_ATTR(r4, AUTO, &AUTO=@attr_arm64={0x0, 0x4, 0x0, 0x0}) r5 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO) r6 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r5, 0x3, 0x1, r3, 0x0) # Run till the end of guest_main(). 0xffffffffffffffff is UEXIT_END. # ioctl$KVM_RUN(r3, AUTO, 0x0) syz_kvm_assert_syzos_uexit$arm64(r3, r6, 0xffffffffffffffff) # # Calling KVM_RUN here again would result in infinite loop. # Instead, signal LPI 0x2000 that is mapped to the event 0, so that the guest can execute another uexit in the IRQ handler. # # Address is GITS_BASE_GPA + GITS_TRANSLATER = 0x08080000 + 0x10040 # ioctl$KVM_SIGNAL_MSI(r1, AUTO, &AUTO={0x8090040, 0x0, 0x0, 0x1, 0x0, ""}) ioctl$KVM_RUN(r3, AUTO, 0x0) syz_kvm_assert_syzos_uexit$arm64(r3, r6, 0xfffffffffffffffe)