Messages in this thread | | | Date | Fri, 5 Apr 2019 15:44:14 +0100 | From | Will Deacon <> | Subject | Re: [PATCH RFC 5/5] arm64/speculation: Add support for 'cpu_spec_mitigations=' cmdline options |
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Hi Josh,
On Thu, Apr 04, 2019 at 11:44:15AM -0500, Josh Poimboeuf wrote: > Configure arm64 runtime CPU speculation bug mitigations in accordance > with the 'cpu_spec_mitigations=' cmdline options. This affects > Meltdown and Speculative Store Bypass. > > The default behavior is unchanged. > > Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> > --- > Documentation/admin-guide/kernel-parameters.txt | 2 ++ > arch/arm64/kernel/cpu_errata.c | 4 ++++ > arch/arm64/kernel/cpufeature.c | 6 ++++++ > 3 files changed, 12 insertions(+)
Just wanted to make you aware that this is probably going to conflict badly with some patches we have pending to hook up the sysfs entries:
http://lists.infradead.org/pipermail/linux-arm-kernel/2019-March/640326.html
That patch series isn't quite there yet, so I'm expecting a v7, but I think it will change the shape of this patch quite a lot.
Will
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