Messages in this thread | | | Subject | Re: [PATCH v6 04/10] arm64: Advertise mitigation of Spectre-v2, or lack thereof | From | Suzuki K Poulose <> | Date | Mon, 25 Mar 2019 10:59:34 +0000 |
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On 21/03/2019 23:05, Jeremy Linton wrote: > From: Marc Zyngier <marc.zyngier@arm.com> > > We currently have a list of CPUs affected by Spectre-v2, for which > we check that the firmware implements ARCH_WORKAROUND_1. It turns > out that not all firmwares do implement the required mitigation, > and that we fail to let the user know about it. > > Instead, let's slightly revamp our checks, and rely on a whitelist > of cores that are known to be non-vulnerable, and let the user know > the status of the mitigation in the kernel log. > > Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> > [This makes more sense in front of the sysfs patch] > [Pick pieces of that patch into this and move it earlier] > Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> > Reviewed-by: Andre Przywara <andre.przywara@arm.com> > Tested-by: Stefan Wahren <stefan.wahren@i2se.com> > ---
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
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