From: Russell King - ARM Linux <linux@armlinux.org.uk>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>,
stable@vger.kernel.org, Tony Lindgren <tony@atomide.com>,
Mark Rutland <mark.rutland@arm.com>,
David Long <dave.long@linaro.org>,
Greg KH <gregkh@linuxfoundation.org>,
Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH 4.9 V2 09/24] ARM: spectre-v2: add firmware based hardening
Date: Tue, 20 Nov 2018 10:59:44 +0000 [thread overview]
Message-ID: <20181120105943.GC30658@n2100.armlinux.org.uk> (raw)
In-Reply-To: <fd8606a3-b6d1-a04b-0484-2da9c13227e4@gmail.com>
All,
It is now almost two weeks since David posted the patches, and a week
since the last message in this thread.
What is happening with these patches? What about the 4.4-stable
backport as well? Does anyone care about these anymore? Do we have
any product customers using 32-bit Cortex CPUs anymore?
David - FYI - everything in my Spectre branch is now in mainline as
of 4.20-rc3, and I have nothing further planned for core 32-bit ARM
Spectre workarounds.
On Tue, Nov 13, 2018 at 10:08:48AM -0800, Florian Fainelli wrote:
> On 11/13/18 6:23 AM, Marc Zyngier wrote:
> > Russell,
> >
> > On Mon, 12 Nov 2018 16:54:10 +0000,
> > Russell King - ARM Linux <linux@armlinux.org.uk> wrote:
> >>
> >> Marc,
> >>
> >> Can you please ack this to say that you are now happy with it after
> >> your comments on version 1, so we can move forward and have Greg
> >> merge it.
> >>
> >> Thanks.
> >>
> >> On Wed, Nov 07, 2018 at 11:43:47AM -0500, David Long wrote:
> >>> From: Russell King <rmk+kernel@armlinux.org.uk>
> >>>
> >>> Commit 10115105cb3aa17b5da1cb726ae8dd5f6854bd93 upstream.
> >>> Commit 6282e916f774e37845c65d1eae9f8c649004f033 upstream.
> >>>
> >>> Add firmware based hardening for cores that require more complex
> >>> handling in firmware.
> >>>
> >>> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
> >>> Boot-tested-by: Tony Lindgren <tony@atomide.com>
> >>> Reviewed-by: Tony Lindgren <tony@atomide.com>
> >>> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
> >>> Signed-off-by: David A. Long <dave.long@linaro.org>
> >
> > Sure. Feel free to add my
> >
> > Acked-by: Marc Zyngier <marc.zyngier@arm.com>
> >
> > I assume someone has tested these patches (I haven't, and I'm unlikely
> > to do so in the near future as I'm travelling). I'm not sure Tony's
> > "Boot-tested-by" is still valid, and Florian's earlier set of tests
> > didn't show the issues of the initial backport.
>
> Correct, I was not testing any KVM path at all, which is why this did
> not show up as a problem for me, I am not really well equipped to
> perform KVM testing at the moment.
> --
> Florian
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
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next prev parent reply other threads:[~2018-11-20 21:28 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-07 16:43 [PATCH 4.9 V2 00/24] V4.9 backport of 32-bit arm spectre patches David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 01/24] ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 02/24] ARM: bugs: prepare processor bug infrastructure David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 03/24] ARM: bugs: hook processor bug checking into SMP and suspend paths David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 04/24] ARM: bugs: add support for per-processor bug checking David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 05/24] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 06/24] ARM: spectre-v2: harden branch predictor on context switches David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 07/24] ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 08/24] ARM: spectre-v2: harden user aborts in kernel space David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 09/24] ARM: spectre-v2: add firmware based hardening David Long
2018-11-12 16:54 ` Russell King - ARM Linux
2018-11-13 14:23 ` Marc Zyngier
2018-11-13 15:16 ` David Long
2018-11-13 17:36 ` Marc Zyngier
2018-11-13 17:54 ` Russell King - ARM Linux
2018-11-13 16:43 ` Tony Lindgren
2018-11-13 18:08 ` Florian Fainelli
2018-11-20 10:59 ` Russell King - ARM Linux [this message]
2018-11-20 11:15 ` Greg KH
2018-11-20 15:30 ` David Long
2018-11-20 16:42 ` Marc Zyngier
2018-11-20 16:24 ` David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 10/24] ARM: spectre-v2: warn about incorrect context switching functions David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 11/24] ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17 David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 12/24] ARM: KVM: invalidate icache on guest exit for Cortex-A15 David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 13/24] ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15 David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 14/24] ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 15/24] ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1 David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 16/24] ARM: spectre-v1: add speculation barrier (csdb) macros David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 17/24] ARM: spectre-v1: add array_index_mask_nospec() implementation David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 18/24] ARM: spectre-v1: fix syscall entry David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 19/24] ARM: signal: copy registers using __copy_from_user() David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 20/24] ARM: vfp: use __copy_from_user() when restoring VFP state David Long
2018-11-07 16:43 ` [PATCH 4.9 V2 21/24] ARM: oabi-compat: copy semops using __copy_from_user() David Long
2018-11-07 16:44 ` [PATCH 4.9 V2 22/24] ARM: use __inttype() in get_user() David Long
2018-11-07 16:44 ` [PATCH 4.9 V2 23/24] ARM: spectre-v1: use get_user() for __get_user() David Long
2018-11-07 16:44 ` [PATCH 4.9 V2 24/24] ARM: spectre-v1: mitigate user accesses David Long
2018-11-12 15:27 ` [PATCH 4.9 V2 00/24] V4.9 backport of 32-bit arm spectre patches Russell King - ARM Linux
2018-11-21 18:27 ` Greg KH
2018-11-21 19:13 ` David Long
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