From: Greg KH <greg@kroah.com>
To: James Morse <james.morse@arm.com>
Cc: stable@vger.kernel.org, linux-kernel@vger.kernel.org,
catalin.marinas@arm.com
Subject: Re: [stable:PATCH v4.14.274 00/27] arm64: Mitigate spectre style branch history side channels
Date: Thu, 31 Mar 2022 21:03:52 +0200 [thread overview]
Message-ID: <YkX7GG5+inB9TkN4@kroah.com> (raw)
In-Reply-To: <20220331183400.73183-1-james.morse@arm.com>
On Thu, Mar 31, 2022 at 07:33:33PM +0100, James Morse wrote:
> Hello!
>
> This is the spectre-bhb backport for v4.14.
> This comes with an A76 timer workaround. v4.14 doesn't have a compat
> vdso, so doesn't need all the patches for that workaround.
> In particular, it doesn't need Marc's series:
> https://lore.kernel.org/linux-arm-kernel/20200715125614.3240269-1-maz@kernel.org/
>
> I included the Kconfig change that restricts this to COMPAT, but not commit
> 0f80cad3124f ("arm64: Restrict ARM64_ERRATUM_1188873 mitigation to AArch32"),
> which is an invasive performance optimisation that wasn't marked as
> being for stable.
Thanks for these, all now queued up!
greg k-h
prev parent reply other threads:[~2022-03-31 19:05 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-31 18:33 [stable:PATCH v4.14.274 00/27] arm64: Mitigate spectre style branch history side channels James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 01/27] arm64: arch_timer: Add workaround for ARM erratum 1188873 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 02/27] arm64: arch_timer: avoid unused function warning James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 03/27] arm64: Add silicon-errata.txt entry for ARM erratum 1188873 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 04/27] arm64: Make ARM64_ERRATUM_1188873 depend on COMPAT James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 05/27] arm64: Add part number for Neoverse N1 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 06/27] arm64: Add part number for Arm Cortex-A77 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 07/27] arm64: Add Neoverse-N2, Cortex-A710 CPU part definition James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 08/27] arm64: Add Cortex-X2 " James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 09/27] arm64: entry.S: Add ventry overflow sanity checks James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 10/27] arm64: entry: Make the trampoline cleanup optional James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 11/27] arm64: entry: Free up another register on kpti's tramp_exit path James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 12/27] arm64: entry: Move the trampoline data page before the text page James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 13/27] arm64: entry: Allow tramp_alias to access symbols after the 4K boundary James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 14/27] arm64: entry: Don't assume tramp_vectors is the start of the vectors James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 15/27] arm64: entry: Move trampoline macros out of ifdef'd section James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 16/27] arm64: entry: Make the kpti trampoline's kpti sequence optional James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 17/27] arm64: entry: Allow the trampoline text to occupy multiple pages James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 18/27] arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 19/27] arm64: entry: Add vectors that have the bhb mitigation sequences James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 20/27] arm64: entry: Add macro for reading symbol addresses from the trampoline James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 21/27] arm64: Add percpu vectors for EL1 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 22/27] arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2 James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 23/27] KVM: arm64: Add templates for BHB mitigation sequences James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 24/27] arm64: Mitigate spectre style branch history side channels James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 25/27] KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated James Morse
2022-03-31 18:33 ` [stable:PATCH v4.14.274 26/27] arm64: add ID_AA64ISAR2_EL1 sys register James Morse
2022-03-31 18:34 ` [stable:PATCH v4.14.274 27/27] arm64: Use the clearbhb instruction in mitigations James Morse
2022-03-31 19:03 ` Greg KH [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=YkX7GG5+inB9TkN4@kroah.com \
--to=greg@kroah.com \
--cc=catalin.marinas@arm.com \
--cc=james.morse@arm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox