From: Mark Brown <broonie@kernel.org>
To: Leonardo Bras <leo.bras@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Marc Zyngier <maz@kernel.org>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Shuah Khan <shuah@kernel.org>, Oliver Upton <oupton@kernel.org>,
Fuad Tabba <fuad.tabba@linux.dev>,
Peter Maydell <peter.maydell@linaro.org>,
Wei-Lin Chang <weilin.chang@arm.com>,
Yao Yuan <yaoyuan@linux.alibaba.com>,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v20 03/14] KVM: arm64: Manage GCS access and registers for guests
Date: Thu, 3 Sep 2026 21:52:32 +0100 [thread overview]
Message-ID: <06c7edc2-d000-4fd6-9568-a692f61dbf90@sirena.org.uk> (raw)
In-Reply-To: <aphSYqKrgUq5Qycu@LeoBrasDK>
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On Wed, Sep 02, 2026 at 05:44:18PM +0100, Leonardo Bras wrote:
> Reading this patch, it feels like it should have been two different
> patches: one for adding the registers to kvm infra, and the other for
> loading/saving it in the code (with GCSEn). If you later decide to split
> it, feel free to add my R-b in both of them.
This seems to be a fairly standard idiom for KVM feature serieses, and
there is a competing series length concern.
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next prev parent reply other threads:[~2026-09-03 20:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 21:46 [PATCH v20 00/14] KVM: arm64: Provide guest support for GCS Mark Brown
2026-09-01 21:46 ` [PATCH v20 01/14] arm64/gcs: Ensure FGTs for EL1 GCS instructions are disabled Mark Brown
2026-09-03 16:10 ` Lorenzo Stoakes (ARM)
2026-09-01 21:47 ` [PATCH v20 02/14] KVM: arm64: Fix FGT mapping for HFGITR_EL2.nGCSEPP Mark Brown
2026-09-03 16:23 ` Lorenzo Stoakes (ARM)
2026-09-03 19:29 ` Mark Brown
2026-09-01 21:47 ` [PATCH v20 03/14] KVM: arm64: Manage GCS access and registers for guests Mark Brown
2026-09-02 16:44 ` Leonardo Bras
2026-09-03 20:52 ` Mark Brown [this message]
2026-09-03 18:13 ` Lorenzo Stoakes (ARM)
2026-09-03 20:41 ` Mark Brown
2026-09-01 21:47 ` [PATCH v20 04/14] KVM: arm64: Ensure GCS memory effects are visible Mark Brown
2026-09-02 16:30 ` Leonardo Bras
2026-09-01 21:47 ` [PATCH v20 05/14] KVM: arm64: Set PSTATE.EXLOCK when entering an exception Mark Brown
2026-09-03 14:25 ` Leonardo Bras
2026-09-03 16:20 ` Mark Brown
2026-09-03 16:40 ` Leonardo Bras
2026-09-01 21:47 ` [PATCH v20 06/14] KVM: arm64: Validate GCS exception lock when emulating ERET Mark Brown
2026-09-03 15:37 ` Leonardo Bras
2026-09-03 19:22 ` Mark Brown
2026-09-01 21:47 ` [PATCH v20 07/14] KVM: arm64: Forward GCS exceptions to nested guests Mark Brown
2026-09-01 21:47 ` [PATCH v20 08/14] KVM: arm64: Enforce EXLOCK for SPSR and ELR Mark Brown
2026-09-01 21:47 ` [PATCH v20 09/14] KVM: arm64: Allow GCS to be enabled for guests Mark Brown
2026-09-01 21:47 ` [PATCH v20 10/14] KVM: selftests: arm64: Add GCS registers to get-reg-list Mark Brown
2026-09-01 21:47 ` [PATCH v20 11/14] KVM: selftests: arm64: Add GCS to set_id_regs Mark Brown
2026-09-01 21:47 ` [PATCH v20 12/14] KVM: selftests: arm64: Only restore SPSR_EL1 and ELR_EL1 if they change Mark Brown
2026-09-01 21:47 ` [PATCH v20 13/14] tools: Synchronise the kernel esr.h Mark Brown
2026-09-01 21:47 ` [PATCH v20 14/14] KVM: selftests: arm64: Add GCS EXLOCK exception emulation test Mark Brown
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