From: Greg KH <greg@kroah.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
stable@vger.kernel.org, Andre Przywara <andre.przywara@arm.com>,
Jeremy Linton <jeremy.linton@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH for-stable-v4.19 00/16] arm64 spec mitigation backports
Date: Wed, 9 Oct 2019 10:04:22 +0200 [thread overview]
Message-ID: <20191009080422.GA3881278@kroah.com> (raw)
In-Reply-To: <20191008153930.15386-1-ard.biesheuvel@linaro.org>
On Tue, Oct 08, 2019 at 05:39:14PM +0200, Ard Biesheuvel wrote:
> This is a backport to v4.19 of the arm64 patches that exists in mainline
> to support CPUs that implement the SSBS capability, which gives the OS
> and user space control over whether Speculative Store Bypass is
> permitted in certain contexts. This gives a substantial performance
> boost on hardware that implements it.
>
> At the same time, this series backports arm64 support for reporting
> of vulnerabilities via syfs. This is covered by the same series since
> it produces a much cleaner backport, where none of the patches required
> any changes beyond some manual mangling of the context to make them apply.
>
> Build tested using a fair number of randconfig builds. Boot tested
> under KVM and on ThunderX2.
All now queued up, thanks.
greg k-h
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WARNING: multiple messages have this Message-ID (diff)
From: Greg KH <greg@kroah.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org, stable@vger.kernel.org,
Will Deacon <will@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Jeremy Linton <jeremy.linton@arm.com>,
Andre Przywara <andre.przywara@arm.com>
Subject: Re: [PATCH for-stable-v4.19 00/16] arm64 spec mitigation backports
Date: Wed, 9 Oct 2019 10:04:22 +0200 [thread overview]
Message-ID: <20191009080422.GA3881278@kroah.com> (raw)
In-Reply-To: <20191008153930.15386-1-ard.biesheuvel@linaro.org>
On Tue, Oct 08, 2019 at 05:39:14PM +0200, Ard Biesheuvel wrote:
> This is a backport to v4.19 of the arm64 patches that exists in mainline
> to support CPUs that implement the SSBS capability, which gives the OS
> and user space control over whether Speculative Store Bypass is
> permitted in certain contexts. This gives a substantial performance
> boost on hardware that implements it.
>
> At the same time, this series backports arm64 support for reporting
> of vulnerabilities via syfs. This is covered by the same series since
> it produces a much cleaner backport, where none of the patches required
> any changes beyond some manual mangling of the context to make them apply.
>
> Build tested using a fair number of randconfig builds. Boot tested
> under KVM and on ThunderX2.
All now queued up, thanks.
greg k-h
next prev parent reply other threads:[~2019-10-09 8:08 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-08 15:39 [PATCH for-stable-v4.19 00/16] arm64 spec mitigation backports Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-08 15:39 ` [PATCH for-stable-v4.19 01/16] arm64: cpufeature: Detect SSBS and advertise to userspace Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-08 15:39 ` [PATCH for-stable-v4.19 02/16] arm64: ssbd: Add support for PSTATE.SSBS rather than trapping to EL3 Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: ssbd: Add support for PSTATE.SSBS rather than trapping to EL3" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 03/16] KVM: arm64: Set SCTLR_EL2.DSSBS if SSBD is forcefully disabled and !vhe Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "KVM: arm64: Set SCTLR_EL2.DSSBS if SSBD is forcefully disabled and !vhe" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 04/16] arm64: docs: Document SSBS HWCAP Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: docs: Document SSBS HWCAP" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 05/16] arm64: fix SSBS sanitization Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: fix SSBS sanitization" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 06/16] arm64: Add sysfs vulnerability show for spectre-v1 Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Add sysfs vulnerability show for spectre-v1" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 07/16] arm64: add sysfs vulnerability show for meltdown Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: add sysfs vulnerability show for meltdown" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 08/16] arm64: enable generic CPU vulnerabilites support Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: enable generic CPU vulnerabilites support" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 09/16] arm64: Always enable ssb vulnerability detection Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Always enable ssb vulnerability detection" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 10/16] arm64: Provide a command line to disable spectre_v2 mitigation Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Provide a command line to disable spectre_v2 mitigation" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 11/16] arm64: Advertise mitigation of Spectre-v2, or lack thereof Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Advertise mitigation of Spectre-v2, or lack thereof" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 12/16] arm64: Always enable spectre-v2 vulnerability detection Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Always enable spectre-v2 vulnerability detection" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 13/16] arm64: add sysfs vulnerability show for spectre-v2 Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: add sysfs vulnerability show for spectre-v2" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 14/16] arm64: add sysfs vulnerability show for speculative store bypass Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: add sysfs vulnerability show for speculative store bypass" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 15/16] arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: ssbs: Don't treat CPUs with SSBS as unaffected by SSB" has been added to the 4.19-stable tree gregkh
2019-10-08 15:39 ` [PATCH for-stable-v4.19 16/16] arm64: Force SSBS on context switch Ard Biesheuvel
2019-10-08 15:39 ` Ard Biesheuvel
2019-10-09 8:04 ` Patch "arm64: Force SSBS on context switch" has been added to the 4.19-stable tree gregkh
2019-10-09 8:04 ` Greg KH [this message]
2019-10-09 8:04 ` [PATCH for-stable-v4.19 00/16] arm64 spec mitigation backports Greg KH
2019-10-09 8:17 ` Ard Biesheuvel
2019-10-09 8:17 ` Ard Biesheuvel
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