From: Greg KH <gregkh@linuxfoundation.org>
To: Sasha Levin <sashal@kernel.org>
Cc: James Morse <james.morse@arm.com>,
stable@vger.kernel.org, catalin.marinas@arm.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [stable:PATCH v5.4.184 00/22] arm64: Mitigate spectre style branch history side channels
Date: Thu, 17 Mar 2022 11:00:33 +0100 [thread overview]
Message-ID: <YjMGwYeBTx36/6uO@kroah.com> (raw)
In-Reply-To: <YjIFE8Abn7XI+4yW@sashalap>
On Wed, Mar 16, 2022 at 11:41:07AM -0400, Sasha Levin wrote:
> On Tue, Mar 15, 2022 at 06:23:53PM +0000, James Morse wrote:
> > Hi Greg,
> >
> > Here is the state of the current v5.4 backport. Now that the 32bit
> > code has been merged, it doesn't conflict when KVM's shared 32bit/64bit
> > code needs to use these constants.
> >
> > I've fixed the two issues that were reported against the v5.10 backport.
> >
> > I had a go at bringing all the pre-requisites in to add proton-pack.c
> > to v5.4. Its currently 39 patches:
> > https://git.gitlab.arm.com/linux-arm/linux-jm.git /bhb/alternative_backport/UNTESTED/v5.4.183
> > (or for web browsers:
> > https://gitlab.arm.com/linux-arm/linux-jm/-/commits/bhb/alternative_backport/UNTESTED/v5.4.183/
> > )
>
> I've queued it up.
Thanks for merging these, and James, thanks for the backports! I agree,
this way is a bit "simpler", but thanks for trying the other way as
well.
Does this mean that the 4.19 and older backports will be easier?
greg k-h
next prev parent reply other threads:[~2022-03-17 10:00 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 18:23 [stable:PATCH v5.4.184 00/22] arm64: Mitigate spectre style branch history side channels James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 01/22] arm64: Add part number for Arm Cortex-A77 James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 02/22] arm64: Add Neoverse-N2, Cortex-A710 CPU part definition James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 03/22] arm64: add ID_AA64ISAR2_EL1 sys register James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 04/22] arm64: Add Cortex-X2 CPU part definition James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 05/22] arm64: entry.S: Add ventry overflow sanity checks James Morse
2022-03-15 18:23 ` [stable:PATCH v5.4.184 06/22] arm64: entry: Make the trampoline cleanup optional James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 07/22] arm64: entry: Free up another register on kpti's tramp_exit path James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 08/22] arm64: entry: Move the trampoline data page before the text page James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 09/22] arm64: entry: Allow tramp_alias to access symbols after the 4K boundary James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 10/22] arm64: entry: Don't assume tramp_vectors is the start of the vectors James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 11/22] arm64: entry: Move trampoline macros out of ifdef'd section James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 12/22] arm64: entry: Make the kpti trampoline's kpti sequence optional James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 13/22] arm64: entry: Allow the trampoline text to occupy multiple pages James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 14/22] arm64: entry: Add non-kpti __bp_harden_el1_vectors for mitigations James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 15/22] arm64: entry: Add vectors that have the bhb mitigation sequences James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 16/22] arm64: entry: Add macro for reading symbol addresses from the trampoline James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 17/22] arm64: Add percpu vectors for EL1 James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 18/22] arm64: proton-pack: Report Spectre-BHB vulnerabilities as part of Spectre-v2 James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 19/22] KVM: arm64: Add templates for BHB mitigation sequences James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 20/22] arm64: Mitigate spectre style branch history side channels James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 21/22] KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated James Morse
2022-03-15 18:24 ` [stable:PATCH v5.4.184 22/22] arm64: Use the clearbhb instruction in mitigations James Morse
2022-03-16 15:41 ` [stable:PATCH v5.4.184 00/22] arm64: Mitigate spectre style branch history side channels Sasha Levin
2022-03-16 17:38 ` James Morse
2022-03-16 18:43 ` Sasha Levin
2022-03-17 10:00 ` Greg KH [this message]
2022-03-18 12:15 ` James Morse
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