linux-kernel - Re: [PATCH v3 0/7] arm64: add system vulnerability sysfs entries

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Message-ID: <884332236.499392.1547581848222@email.ionos.de>
Date:   Tue, 15 Jan 2019 20:50:48 +0100 (CET)
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Jeremy Linton <jeremy.linton@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     mlangsdo@...hat.com, suzuki.poulose@....com, marc.zyngier@....com,
        catalin.marinas@....com, julien.thierry@....com,
        will.deacon@....com, linux-kernel@...r.kernel.org,
        steven.price@....com, ykaukab@...e.de, dave.martin@....com,
        shankerd@...eaurora.org
Subject: Re: [PATCH v3 0/7] arm64: add system vulnerability sysfs entries

Hi Jeremy,

> Jeremy Linton <jeremy.linton@....com> 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.

Stefan