Bad execution on FreeBSD/powerpc64

When running on FreeBSD on powerpc64 architecture (POWER9 CPU) I get:
root@talos:$~/spectre-meltdown-checker-master$ ./spectre-meltdown-checker.sh -v -v
Spectre and Meltdown mitigation detection tool v0.40

(debug) We're under BSD, check if we have procfs
(debug) we don't, try to mount it
(debug) attempted to load module cpuctl, kldload_cpuctl=
(debug) attempted to load module cpuctl, kldload_cpuctl=
printf: : expected numeric value
printf: : expected numeric value
printf: : expected numeric value
Checking for vulnerabilities on current system
Kernel is FreeBSD 12.0-RC3 FreeBSD 12.0-RC3 #0 r341271M: Fri Nov 30 01:57:28 CET 2018     toor@talos.anongoth.pl:/usr/obj/usr/src/powerpc.powerpc64/sys/GENERIC64  powerpc
CPU is IBM POWER9
Will use no kernel image (accuracy might be reduced)
(debug) no opt_kernel defined

Hardware check
* CPU vulnerability to the speculative execution attack variants
  * Vulnerable to CVE-2017-5753 (Spectre Variant 1, bounds check bypass): (debug) is_cpu_vulnerable: temp results are <> <> <> <> <> <>
(debug) is_cpu_vulnerable: final results are <0> <0> <0> <0> <0> <0> <0>
 YES
  * Vulnerable to CVE-2017-5715 (Spectre Variant 2, branch target injection):  YES
  * Vulnerable to CVE-2017-5754 (Variant 3, Meltdown, rogue data cache load):  YES
  * Vulnerable to CVE-2018-3640 (Variant 3a, rogue system register read):  YES
  * Vulnerable to CVE-2018-3639 (Variant 4, speculative store bypass):  YES
  * Vulnerable to CVE-2018-3615 (Foreshadow (SGX), L1 terminal fault):  YES
  * Vulnerable to CVE-2018-3620 (Foreshadow-NG (OS), L1 terminal fault):  YES
  * Vulnerable to CVE-2018-3646 (Foreshadow-NG (VMM), L1 terminal fault):  YES

CVE-2017-5753 aka 'Spectre Variant 1, bounds check bypass'
> STATUS:  VULNERABLE  (no mitigation for BSD yet)

CVE-2017-5715 aka 'Spectre Variant 2, branch target injection'
* Mitigation 1
  * Kernel supports IBRS:  NO
  * IBRS enabled and active:  NO
* Mitigation 2
  * Kernel compiled with RETPOLINE:  UNKNOWN  (couldn't check (couldn't find your kernel image in /boot, if you used netboot, this is normal))
> STATUS:  VULNERABLE  (IBRS is needed to mitigate the vulnerability but your kernel is missing support)

CVE-2017-5754 aka 'Variant 3, Meltdown, rogue data cache load'
* Kernel supports Page Table Isolation (PTI):  NO
  * PTI enabled and active:  NO
  * Reduced performance impact of PTI: (debug) attempted to load module cpuctl, kldload_cpuctl=
(debug) attempted to load module cpuctl, kldload_cpuctl=
 NO  (PCID/INVPCID not supported, performance impact of PTI will be significant)
> STATUS:  VULNERABLE  (PTI is needed to mitigate the vulnerability)

CVE-2018-3640 aka 'Variant 3a, rogue system register read'
* CPU microcode mitigates the vulnerability:  NO
> STATUS:  VULNERABLE  (an up-to-date CPU microcode is needed to mitigate this vulnerability)

CVE-2018-3639 aka 'Variant 4, speculative store bypass'
* Kernel supports speculation store bypass:  NO
* Speculation store bypass is administratively enabled: (debug) hw.spec_store_bypass_disable=
 NO  (unavailable)
* Speculation store bypass is currently active: (debug) hw.spec_store_bypass_disable_active=
 NO
> STATUS:  VULNERABLE  (Neither your CPU nor your kernel support SSBD)

CVE-2018-3615 aka 'Foreshadow (SGX), L1 terminal fault'
* CPU microcode mitigates the vulnerability:  N/A
> STATUS:  VULNERABLE  (your CPU supports SGX and the microcode is not up to date)

CVE-2018-3620 aka 'Foreshadow-NG (OS), L1 terminal fault'
* Kernel reserved the memory page at physical address 0x0:  NO
> STATUS:  VULNERABLE  (your kernel needs to be updated)

CVE-2018-3646 aka 'Foreshadow-NG (VMM), L1 terminal fault'
* Kernel supports L1D flushing:  NO
* L1D flushing is enabled:  NO
> STATUS:  VULNERABLE  (your kernel needs to be updated)

> SUMMARY: CVE-2017-5753:KO CVE-2017-5715:KO CVE-2017-5754:KO CVE-2018-3640:KO CVE-2018-3639:KO CVE-2018-3615:KO CVE-2018-3620:KO CVE-2018-3646:KO

We're missing some kernel info (see -v), accuracy might be reduced
(debug) variables at end of script: '|bad_accuracy=1|bsd_zero_reserved=0|clear_linux_kernel=/lib/kernel/org.clearlinux.0-RC3.12|cpu_cpuid=0|cpu_friendly_name='IBM POWER9'|cpu_ucode=0|cve=CVE-2018-3646|echo_cmd=/usr/bin/printf|echo_cmd_type=printf|final_summary=' CVE-2017-5753:KO CVE-2017-5715:KO CVE-2017-5754:KO CVE-2018-3640:KO CVE-2018-3639:KO CVE-2018-3615:KO CVE-2018-3620:KO CVE-2018-3646:KO'|global_critical=1|global_unknown=0|ibrs_active=''|ibrs_disabled=''|is_cpu_vulnerable_cached=1|kernel=''|kernel_err=$'couldn't find your kernel image in /boot, if you used netboot, this is normal'|kernel_l1d_enabled=''|kernel_l1d_supported=0|kernel_ssb=0|kpti_enabled=''|mcedb_cache=/root/.mcedb|mcedb_info='builtin MCExtractor DB v84 - 2018/09/27'|mcedb_source=./spectre-meltdown-checker.sh|msg=''|nrpe_vuln=''|opt=''|opt_arch_prefix=''|opt_batch=0|opt_batch_format=text|opt_config=''|opt_coreos=0|opt_cve_all=1|opt_cve_list=''|opt_explain=0|opt_hw_only=0|opt_kernel=''|opt_live=1|opt_live_explicit=0|opt_map=''|opt_no_color=0|opt_no_hw=0|opt_no_sysfs=0|opt_paranoid=0|opt_sysfs_only=0|opt_verbose=3|opt_vmm=-1|os=FreeBSD|parse_cpu_details_done=1|procfs=''|pvulnstatus_last_cve=CVE-2018-3646|read_cpuid_value=''|ret=2|ssb_active=''|ssb_enabled=''|status=UNK|str_uname=12.0-RC3|supported_cve_list='CVE-2017-5753 CVE-2017-5715 CVE-2017-5754 CVE-2018-3640 CVE-2018-3639 CVE-2018-3615 CVE-2018-3620 CVE-2018-3646'|sys_interface_available=0|ucode_found='model 0x0 family 0x0 stepping 0x0 ucode 0x0 cpuid 0x0'|variant1=0|variant2=0|variant3=0|variant3a=0|variant4=0|variantl1tf=0|variantl1tf_sgx=0|vulnstatus=VULN|
Need more detailed information about mitigation options? Use --explain
A false sense of security is worse than no security at all, see --disclaimer
This output is completely wrong. POWER CPUs are vulnerable to variant , but variants 2, 3 and 4 were fixed in firmware (so no need for either Retpoline nor PTI). Variant 3a is only relevant for Intel CPUs, as are LT1F variants.
speed47 / spectre-meltdown-checker

Bad execution on FreeBSD/powerpc64 #267
