github.com/google/syzkaller@v0.0.0-20251211124644-a066d2bc4b02/sys/linux/test/amd64-syz_kvm_setup_syzos_vm-hlt (about)

     1  #
     2  # requires: arch=amd64 -threaded
     3  #
     4  r0 = openat$kvm(0, &AUTO='/dev/kvm\x00', 0x0, 0x0)
     5  r1 = ioctl$KVM_CREATE_VM(r0, AUTO, 0x0)
     6  r2 = syz_kvm_setup_syzos_vm$x86(r1, &(0x7f0000c00000/0x400000)=nil)
     7  
     8  # 0xf4 is the HLT instruction.
     9  #
    10  r3 = syz_kvm_add_vcpu$x86(r2, &AUTO={0x0, &AUTO=[@code={AUTO, AUTO, {"f4", 0x1}}], AUTO})
    11  r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO)
    12  r5 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x1, r3, 0x0)
    13  
    14  # KVM_RUN should exit with KVM_EXIT_HLT = 0x5.
    15  #
    16  ioctl$KVM_RUN(r3, AUTO, 0x0)
    17  syz_kvm_assert_syzos_kvm_exit$x86(r5, 0x5)