From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Eric Auger <eric.auger@redhat.com>,
gankulkarni@os.amperecomputing.com
Subject: Re: (subset) [PATCH v2 00/14] KVM: arm64: NV userspace ABI
Date: Mon, 24 Feb 2025 11:52:52 -0800 [thread overview]
Message-ID: <174042670061.586392.7441716091084012083.b4-ty@linux.dev> (raw)
In-Reply-To: <20250220134907.554085-1-maz@kernel.org>
On Thu, 20 Feb 2025 13:48:53 +0000, Marc Zyngier wrote:
> Since the previous incarnation of the ABI was proved to be subtly
> wrong, I have reworked it to be more in line with the current way KVM
> operates.
>
> No more late NV-specific adjustment nor writable ID_AA64MMFR0_EL1.VH.
> The NV configuration is now entirely selected from the vcpu flags.
> I've preserved the KVM_ARM_VCPU_EL2 flag which enables NV with VHE,
> and added KVM_ARM_VCPU_EL2_E2H0 which alters the NV behaviour to only
> allow nVHE guests without recursive NV support.
>
> [...]
I fixed up the typos, including the one that breaks bisection. Can
always back this out if anything is out of place.
Applied to next, thanks!
[01/14] arm64: cpufeature: Handle NV_frac as a synonym of NV2
https://git.kernel.org/kvmarm/kvmarm/c/88aea41b9bc5
[02/14] KVM: arm64: Hide ID_AA64MMFR2_EL1.NV from guest and userspace
https://git.kernel.org/kvmarm/kvmarm/c/9d6745572899
[03/14] KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero
https://git.kernel.org/kvmarm/kvmarm/c/d9f943f76506
[04/14] KVM: arm64: Mark HCR.EL2.{NV*,AT} RES0 when ID_AA64MMFR4_EL1.NV_frac is 0
https://git.kernel.org/kvmarm/kvmarm/c/8f8d6084f5b5
[05/14] KVM: arm64: Advertise NV2 in the boot messages
https://git.kernel.org/kvmarm/kvmarm/c/2cd9542a375a
[06/14] KVM: arm64: Consolidate idreg callbacks
https://git.kernel.org/kvmarm/kvmarm/c/57e7de2650c8
[07/14] KVM: arm64: Make ID_REG_LIMIT_FIELD_ENUM() more widely available
https://git.kernel.org/kvmarm/kvmarm/c/179fd7e30f04
[08/14] KVM: arm64: Enforce NV limits on a per-idregs basis
https://git.kernel.org/kvmarm/kvmarm/c/e7ef6ed4583e
[09/14] KVM: arm64: Move NV-specific capping to idreg sanitisation
https://git.kernel.org/kvmarm/kvmarm/c/94f296dcd6d9
[10/14] KVM: arm64: Allow userspace to limit NV support to nVHE
https://git.kernel.org/kvmarm/kvmarm/c/f83c41fb3ddd
[11/14] KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable
https://git.kernel.org/kvmarm/kvmarm/c/642c23ea8b45
[12/14] KVM: arm64: Advertise FEAT_ECV when possible
https://git.kernel.org/kvmarm/kvmarm/c/8b0b98ebf34d
--
Best,
Oliver
prev parent reply other threads:[~2025-02-24 19:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 13:48 [PATCH v2 00/14] KVM: arm64: NV userspace ABI Marc Zyngier
2025-02-20 13:48 ` [PATCH v2 01/14] arm64: cpufeature: Handle NV_frac as a synonym of NV2 Marc Zyngier
2025-02-20 14:03 ` Joey Gouly
2025-02-20 13:48 ` [PATCH v2 02/14] KVM: arm64: Hide ID_AA64MMFR2_EL1.NV from guest and userspace Marc Zyngier
2025-02-20 17:36 ` Sebastian Ott
2025-02-20 19:46 ` Marc Zyngier
2025-02-21 7:52 ` Sebastian Ott
2025-02-20 13:48 ` [PATCH v2 03/14] KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero Marc Zyngier
2025-02-20 13:48 ` [PATCH v2 04/14] KVM: arm64: Mark HCR.EL2.{NV*,AT} RES0 when ID_AA64MMFR4_EL1.NV_frac is 0 Marc Zyngier
2025-02-20 13:48 ` [PATCH v2 05/14] KVM: arm64: Advertise NV2 in the boot messages Marc Zyngier
2025-02-20 13:48 ` [PATCH v2 06/14] KVM: arm64: Consolidate idreg callbacks Marc Zyngier
2025-02-20 15:43 ` Ganapatrao Kulkarni
2025-02-20 13:49 ` [PATCH v2 07/14] KVM: arm64: Make ID_REG_LIMIT_FIELD_ENUM() more widely available Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 08/14] KVM: arm64: Enforce NV limits on a per-idregs basis Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 09/14] KVM: arm64: Move NV-specific capping to idreg sanitisation Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 10/14] KVM: arm64: Allow userspace to limit NV support to nVHE Marc Zyngier
2025-02-24 9:44 ` Aneesh Kumar K.V
2025-02-20 13:49 ` [PATCH v2 11/14] KVM: arm64: Make ID_AA64MMFR4_EL1.NV_frac writable Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 12/14] KVM: arm64: Advertise FEAT_ECV when possible Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 13/14] KVM: arm64: Allow userspace to request KVM_ARM_VCPU_EL2* Marc Zyngier
2025-02-20 13:49 ` [PATCH v2 14/14] KVM: arm64: Document NV caps and vcpu flags Marc Zyngier
2025-02-20 14:04 ` [PATCH v2 00/14] KVM: arm64: NV userspace ABI Joey Gouly
2025-02-24 19:52 ` Oliver Upton [this message]
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