# # requires: arch=amd64 -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$x86(r1, &(0x7f0000c00000/0x400000)=nil) # Create a nested VM that just HLTs. # r3 = syz_kvm_add_vcpu$x86(r2, &AUTO={0x0, &AUTO=[@enable_nested={AUTO, AUTO, 0x0}, @nested_create_vm={AUTO, AUTO, 0x0}, @nested_load_code={AUTO, AUTO, {0x0, "f4"}}, @nested_vmlaunch={AUTO, AUTO, 0x0}], AUTO}) r4 = ioctl$KVM_GET_VCPU_MMAP_SIZE(r0, AUTO) r5 = mmap$KVM_VCPU(&(0x7f0000009000/0x1000)=nil, r4, 0x3, 0x1, r3, 0x0) # L2 VM should halt, after which the nested exit handle should uexit with 0xe2e20001 # (0x1 is SYZOS_NESTED_EXIT_REASON_HLT). # ioctl$KVM_RUN(r3, AUTO, 0x0) syz_kvm_assert_syzos_uexit$x86(r3, r5, 0xe2e20001) # KVM_RUN should exit with KVM_EXIT_MMIO due to guest_uexit(-1). # ioctl$KVM_RUN(r3, AUTO, 0x0) syz_kvm_assert_syzos_uexit$x86(r3, r5, 0xffffffff)