Messages in this thread | | | Date | Wed, 6 Apr 2022 20:23:59 +0200 | From | Greg KH <> | Subject | Re: [stable:PATCH v4.9.309 00/43] arm64: Mitigate spectre style branch history side channels |
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On Wed, Apr 06, 2022 at 05:41:34PM +0100, James Morse wrote: > Hello! > > Compared to the v4.14 backport, this backport for v4.9 includes extra > infrastructure for the arch timer driver, which is needed for the A76 timer > workaround, which is needed to cleanly pick up the A76 MIDR definition. > I didn't backport the Hisilicon 161010101 workaround as I'm unable to test it. > > I also backported the capabilities midr-range support, which the bhb > mitigation makes use of. Ard had already backported this to v4.14. > I ended up backporting Ard's version from v4.14 as it conflicted less, > and he had added A35 to the spectre-safe list. > > .. and then the Spectre-BHB bits, where as before the KVM stuff is > different to mainline as the infrastructure for doing this stuff is very > different.
Looks great, many thanks for these!
greg k-h
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