x86/bugs/its_sysfs.py

15 bug = "indirect_target_selection"  variable
16 mitigation = get_sysfs(bug)
25         if cmdline_has(f'{bug}=stuff') and sysfs_has("spectre_v2", "Retpolines"):
26             bug_check_fail(bug, ITS_MITIGATION_ALIGNED_THUNKS, ITS_MITIGATION_RETPOLINE_STUFF)
28         if cmdline_has(f'{bug}=vmexit') and cpuinfo_has('its_native_only'):
29             bug_check_fail(bug, ITS_MITIGATION_ALIGNED_THUNKS, ITS_MITIGATION_VMEXIT_ONLY)
31         bug_check_pass(bug, ITS_MITIGATION_ALIGNED_THUNKS)
35         if cmdline_has(f'{bug}=stuff') and sysfs_has("spectre_v2", "Retpolines"):
36             bug_check_pass(bug, ITS_MITIGATION_RETPOLINE_STUFF)
39             bug_check_pass(bug, ITS_MITIGATION_RETPOLINE_STUFF)
41         bug_check_fail(bug, ITS_MITIGATION_RETPOLINE_STUFF, ITS_MITIGATION_ALIGNED_THUNKS)
44         if cmdline_has(f'{bug}=vmexit') and cpuinfo_has('its_native_only'):
45             bug_check_pass(bug, ITS_MITIGATION_VMEXIT_ONLY)
47         bug_check_fail(bug, ITS_MITIGATION_VMEXIT_ONLY, ITS_MITIGATION_ALIGNED_THUNKS)
51             bug_check_pass(bug, ITS_MITIGATION_VULNERABLE)
53             bug_check_fail(bug, "Mitigation", ITS_MITIGATION_VULNERABLE)
55     bug_status_unknown(bug, mitigation)
60 ksft.print_msg(f'{bug}: {mitigation} ...')
62 if not basic_checks_sufficient(bug, mitigation):