From: Oliver Upton <oliver.upton@linux.dev>
To: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: Oliver Upton <oliver.upton@linux.dev>,
Marc Zyngier <maz@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Hector Martin <marcan@marcan.st>, Will Deacon <will@kernel.org>,
James Morse <james.morse@arm.com>,
Sven Peter <sven@svenpeter.dev>,
linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev,
kvmarm@lists.cs.columbia.edu,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
asahi@lists.linux.dev, Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Mark Brown <broonie@kernel.org>,
Alexandru Elisei <alexandru.elisei@arm.com>
Subject: Re: [PATCH v7 0/7] KVM: arm64: Normalize cache configuration
Date: Mon, 23 Jan 2023 20:24:56 +0000 [thread overview]
Message-ID: <167450318853.2568505.3166405888000533001.b4-ty@linux.dev> (raw)
In-Reply-To: <20230112023852.42012-1-akihiko.odaki@daynix.com>
On Thu, 12 Jan 2023 11:38:45 +0900, Akihiko Odaki wrote:
> Before this change, the cache configuration of the physical CPU was
> exposed to vcpus. This is problematic because the cache configuration a
> vcpu sees varies when it migrates between vcpus with different cache
> configurations.
>
> Fabricate cache configuration from the sanitized value, which holds the
> CTR_EL0 value the userspace sees regardless of which physical CPU it
> resides on.
>
> [...]
Applied to kvmarm/next, thanks!
[1/7] arm64: Allow the definition of UNKNOWN system register fields
https://git.kernel.org/kvmarm/kvmarm/c/e2c0b51f1c9d
[2/7] arm64/sysreg: Convert CCSIDR_EL1 to automatic generation
https://git.kernel.org/kvmarm/kvmarm/c/d1a0eb124c44
[3/7] arm64/sysreg: Add CCSIDR2_EL1
https://git.kernel.org/kvmarm/kvmarm/c/8f407d6a15f3
[4/7] arm64/cache: Move CLIDR macro definitions
https://git.kernel.org/kvmarm/kvmarm/c/805e6ec1c5e0
[5/7] KVM: arm64: Always set HCR_TID2
https://git.kernel.org/kvmarm/kvmarm/c/8cc6dedaff42
[6/7] KVM: arm64: Mask FEAT_CCIDX
https://git.kernel.org/kvmarm/kvmarm/c/bf48040cd9b0
[7/7] KVM: arm64: Normalize cache configuration
https://git.kernel.org/kvmarm/kvmarm/c/7af0c2534f4c
--
Best,
Oliver
WARNING: multiple messages have this Message-ID (diff)
From: Oliver Upton <oliver.upton@linux.dev>
To: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: Oliver Upton <oliver.upton@linux.dev>,
Marc Zyngier <maz@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Hector Martin <marcan@marcan.st>, Will Deacon <will@kernel.org>,
James Morse <james.morse@arm.com>,
Sven Peter <sven@svenpeter.dev>,
linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev,
kvmarm@lists.cs.columbia.edu,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
asahi@lists.linux.dev, Alyssa Rosenzweig <alyssa@rosenzweig.io>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Mark Brown <broonie@kernel.org>,
Alexandru Elisei <alexandru.elisei@arm.com>
Subject: Re: [PATCH v7 0/7] KVM: arm64: Normalize cache configuration
Date: Mon, 23 Jan 2023 20:24:56 +0000 [thread overview]
Message-ID: <167450318853.2568505.3166405888000533001.b4-ty@linux.dev> (raw)
In-Reply-To: <20230112023852.42012-1-akihiko.odaki@daynix.com>
On Thu, 12 Jan 2023 11:38:45 +0900, Akihiko Odaki wrote:
> Before this change, the cache configuration of the physical CPU was
> exposed to vcpus. This is problematic because the cache configuration a
> vcpu sees varies when it migrates between vcpus with different cache
> configurations.
>
> Fabricate cache configuration from the sanitized value, which holds the
> CTR_EL0 value the userspace sees regardless of which physical CPU it
> resides on.
>
> [...]
Applied to kvmarm/next, thanks!
[1/7] arm64: Allow the definition of UNKNOWN system register fields
https://git.kernel.org/kvmarm/kvmarm/c/e2c0b51f1c9d
[2/7] arm64/sysreg: Convert CCSIDR_EL1 to automatic generation
https://git.kernel.org/kvmarm/kvmarm/c/d1a0eb124c44
[3/7] arm64/sysreg: Add CCSIDR2_EL1
https://git.kernel.org/kvmarm/kvmarm/c/8f407d6a15f3
[4/7] arm64/cache: Move CLIDR macro definitions
https://git.kernel.org/kvmarm/kvmarm/c/805e6ec1c5e0
[5/7] KVM: arm64: Always set HCR_TID2
https://git.kernel.org/kvmarm/kvmarm/c/8cc6dedaff42
[6/7] KVM: arm64: Mask FEAT_CCIDX
https://git.kernel.org/kvmarm/kvmarm/c/bf48040cd9b0
[7/7] KVM: arm64: Normalize cache configuration
https://git.kernel.org/kvmarm/kvmarm/c/7af0c2534f4c
--
Best,
Oliver
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-01-23 20:25 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-12 2:38 [PATCH v7 0/7] KVM: arm64: Normalize cache configuration Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 1/7] arm64: Allow the definition of UNKNOWN system register fields Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 2/7] arm64/sysreg: Convert CCSIDR_EL1 to automatic generation Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 3/7] arm64/sysreg: Add CCSIDR2_EL1 Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 4/7] arm64/cache: Move CLIDR macro definitions Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 5/7] KVM: arm64: Always set HCR_TID2 Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 6/7] KVM: arm64: Mask FEAT_CCIDX Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-12 2:38 ` [PATCH v7 7/7] KVM: arm64: Normalize cache configuration Akihiko Odaki
2023-01-12 2:38 ` Akihiko Odaki
2023-01-19 19:46 ` Oliver Upton
2023-01-19 19:46 ` Oliver Upton
2023-01-21 12:02 ` Marc Zyngier
2023-01-21 12:02 ` Marc Zyngier
2023-01-21 18:15 ` Oliver Upton
2023-01-21 18:15 ` Oliver Upton
2023-01-22 17:36 ` Akihiko Odaki
2023-01-22 17:36 ` Akihiko Odaki
2023-01-22 19:45 ` Oliver Upton
2023-01-22 19:45 ` Oliver Upton
2023-01-23 11:11 ` Marc Zyngier
2023-01-23 11:11 ` Marc Zyngier
2026-04-09 12:25 ` David Woodhouse
2026-04-09 13:36 ` Marc Zyngier
2026-04-09 14:51 ` David Woodhouse
2026-04-09 15:45 ` Marc Zyngier
2026-04-09 16:10 ` David Woodhouse
2026-04-09 15:29 ` [PATCH] KVM: arm64: Add KVM_CAP_ARM_NATIVE_CACHE_CONFIG vcpu capability David Woodhouse
2026-04-09 17:07 ` Marc Zyngier
2026-04-09 17:49 ` David Woodhouse
2026-04-09 18:12 ` Marc Zyngier
2026-04-09 21:10 ` David Woodhouse
2023-01-23 20:24 ` Oliver Upton [this message]
2023-01-23 20:24 ` [PATCH v7 0/7] KVM: arm64: Normalize cache configuration Oliver Upton
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