From: Marc Zyngier <maz@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>, Will Deacon <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org,
Mark Rutland <mark.rutland@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>
Subject: Re: [PATCH v2 4/5] arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context
Date: Mon, 28 Oct 2019 10:49:37 +0000 [thread overview]
Message-ID: <86zhhlxhz2.wl-maz@kernel.org> (raw)
In-Reply-To: <20191028103217.GB16739@arrakis.emea.arm.com>
On Mon, 28 Oct 2019 10:32:17 +0000,
Catalin Marinas <catalin.marinas@arm.com> wrote:
Hi Catalin,
> On Sat, Oct 26, 2019 at 11:20:35AM +0100, Marc Zyngier wrote:
> > Catalin, Will: given that this series conflicts with the workaround for
> > erratum 1542419, do you mind taking it via the arm64 tree?
>
> I assume you target 5.5 with this workaround.
Absolutely. I'm happy to look at backports once this is in.
> I don't mind merging it but if you want to queue it, we already have
> a stable for-next/neoverse-n1-stale-instr branch with 1542419 (I'll
> push a fixup on top soon for a clang warning). The other issue is
> that we get a conflict with mainline due to the tx2 erratum. If it
> gets too complicated, I'll also merge for-next/fixes into
> for-next/core.
OK, let me have another look at providing a resolution that includes
all of the above. Worse case, you'll be able to pull the branch
directly.
Thanks,
M.
--
Jazz is not dead, it just smells funny.
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: kvm@vger.kernel.org, Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 4/5] arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context
Date: Mon, 28 Oct 2019 10:49:37 +0000 [thread overview]
Message-ID: <86zhhlxhz2.wl-maz@kernel.org> (raw)
In-Reply-To: <20191028103217.GB16739@arrakis.emea.arm.com>
On Mon, 28 Oct 2019 10:32:17 +0000,
Catalin Marinas <catalin.marinas@arm.com> wrote:
Hi Catalin,
> On Sat, Oct 26, 2019 at 11:20:35AM +0100, Marc Zyngier wrote:
> > Catalin, Will: given that this series conflicts with the workaround for
> > erratum 1542419, do you mind taking it via the arm64 tree?
>
> I assume you target 5.5 with this workaround.
Absolutely. I'm happy to look at backports once this is in.
> I don't mind merging it but if you want to queue it, we already have
> a stable for-next/neoverse-n1-stale-instr branch with 1542419 (I'll
> push a fixup on top soon for a clang warning). The other issue is
> that we get a conflict with mainline due to the tx2 erratum. If it
> gets too complicated, I'll also merge for-next/fixes into
> for-next/core.
OK, let me have another look at providing a resolution that includes
all of the above. Worse case, you'll be able to pull the branch
directly.
Thanks,
M.
--
Jazz is not dead, it just smells funny.
_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
kvm@vger.kernel.org, Suzuki K Poulose <suzuki.poulose@arm.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Will Deacon <will@kernel.org>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 4/5] arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context
Date: Mon, 28 Oct 2019 10:49:37 +0000 [thread overview]
Message-ID: <86zhhlxhz2.wl-maz@kernel.org> (raw)
In-Reply-To: <20191028103217.GB16739@arrakis.emea.arm.com>
On Mon, 28 Oct 2019 10:32:17 +0000,
Catalin Marinas <catalin.marinas@arm.com> wrote:
Hi Catalin,
> On Sat, Oct 26, 2019 at 11:20:35AM +0100, Marc Zyngier wrote:
> > Catalin, Will: given that this series conflicts with the workaround for
> > erratum 1542419, do you mind taking it via the arm64 tree?
>
> I assume you target 5.5 with this workaround.
Absolutely. I'm happy to look at backports once this is in.
> I don't mind merging it but if you want to queue it, we already have
> a stable for-next/neoverse-n1-stale-instr branch with 1542419 (I'll
> push a fixup on top soon for a clang warning). The other issue is
> that we get a conflict with mainline due to the tx2 erratum. If it
> gets too complicated, I'll also merge for-next/fixes into
> for-next/core.
OK, let me have another look at providing a resolution that includes
all of the above. Worse case, you'll be able to pull the branch
directly.
Thanks,
M.
--
Jazz is not dead, it just smells funny.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-10-28 10:49 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-19 9:55 [PATCH v2 0/5] arm64: KVM: Add workaround for errata 1319367 and 1319537 Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` [PATCH v2 1/5] arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` [PATCH v2 2/5] arm64: KVM: Reorder system register restoration and stage-2 activation Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-24 16:09 ` James Morse
2019-10-24 16:09 ` James Morse
2019-10-24 16:09 ` James Morse
2019-10-19 9:55 ` [PATCH v2 3/5] arm64: KVM: Disable EL1 PTW when invalidating S2 TLBs Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-24 16:10 ` James Morse
2019-10-24 16:10 ` James Morse
2019-10-24 16:10 ` James Morse
2019-10-19 9:55 ` [PATCH v2 4/5] arm64: KVM: Prevent speculative S1 PTW when restoring vcpu context Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-24 16:10 ` James Morse
2019-10-24 16:10 ` James Morse
2019-10-24 16:10 ` James Morse
2019-10-26 10:20 ` Marc Zyngier
2019-10-26 10:20 ` Marc Zyngier
2019-10-26 10:20 ` Marc Zyngier
2019-10-28 10:32 ` Catalin Marinas
2019-10-28 10:32 ` Catalin Marinas
2019-10-28 10:32 ` Catalin Marinas
2019-10-28 10:49 ` Marc Zyngier [this message]
2019-10-28 10:49 ` Marc Zyngier
2019-10-28 10:49 ` Marc Zyngier
2019-10-28 11:06 ` Catalin Marinas
2019-10-28 11:06 ` Catalin Marinas
2019-10-28 11:06 ` Catalin Marinas
2019-10-19 9:55 ` [PATCH v2 5/5] arm64: Enable and document ARM errata 1319367 and 1319537 Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
2019-10-19 9:55 ` Marc Zyngier
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