Hi,

On 01/15/2019 01:50 PM, Stefan Wahren wrote:

Hi Jeremy,

quoted

Jeremy Linton [off-list ref] hat am 10. Januar 2019 um 00:55 geschrieben:


Arm64 machines should be displaying a human readable
vulnerability status to speculative execution attacks in
/sys/devices/system/cpu/vulnerabilities

This series enables that behavior by providing the expected
functions. Those functions expose the cpu errata and feature
states, as well as whether firmware is responding appropriately
to display the overall machine status. This means that in a
heterogeneous machine we will only claim the machine is mitigated
or safe if we are confident all booted cores are safe or
mitigated.

i applied this v3 series and Marc's v2 series.

Now i'm getting the following on a Raspberry Pi 3 B+ :

meltdown:Not affected
spec_store_bypass:Not affected
spectre_v1:Mitigation: __user pointer sanitization

So the entries l1tf and spectre_v2 disappeared.

Yes, the l1tf entry should be gone.

I believe there is a problem with the "1/2 advertise.." patch in that 
the 'arm64_requested_vuln_attrs |=' line needs to be hoisted  to the top 
of check_branch_predictor() and the '__spectrev2_safe = false' line 
needs to be hoisted 6 lines immediately above "/* Fallback to firmware 
detection*/"

That should re-enable the spectre_v2 entry.




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