From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Michael Ellerman <mpe@ellerman.id.au>,
Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: Shuah Khan <shuah@kernel.org>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org
Subject: Re: [PATCH] selftests/powerpc: return skip code for spectre_v2
Date: Sun, 2 Aug 2020 23:34:59 +1000 (AEST) [thread overview]
Message-ID: <159637523453.42190.2614653860464292630.b4-ty@ellerman.id.au> (raw)
In-Reply-To: <20200728155039.401445-1-cascardo@canonical.com>
On Tue, 28 Jul 2020 12:50:39 -0300, Thadeu Lima de Souza Cascardo wrote:
> When running under older versions of qemu of under newer versions with old
> machine types, some security features will not be reported to the guest.
> This will lead the guest OS to consider itself Vulnerable to spectre_v2.
>
> So, spectre_v2 test fails in such cases when the host is mitigated and miss
> predictions cannot be detected as expected by the test.
>
> [...]
Applied to powerpc/next.
[1/1] selftests/powerpc: Return skip code for spectre_v2
https://git.kernel.org/powerpc/c/f3054ffd71b5afd44832b2207e6e90267e1cd2d1
cheers
prev parent reply other threads:[~2020-08-02 13:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 15:50 [PATCH] selftests/powerpc: return skip code for spectre_v2 Thadeu Lima de Souza Cascardo
2020-08-02 13:34 ` Michael Ellerman [this message]
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