linux-kernel - Re: [PATCH v6] KVM: arm64: Add early

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Date: Mon, 17 Jun 2024 18:22:44 +0000
From: Colton Lewis <coltonlewis@...gle.com>
To: Oliver Upton <oliver.upton@...ux.dev>
Cc: kvm@...r.kernel.org, oliver.upton@...ux.dev, yuzenghui@...wei.com, 
	linux-doc@...r.kernel.org, catalin.marinas@....com, corbet@....net, 
	linux-kernel@...r.kernel.org, suzuki.poulose@....com, 
	linux-arm-kernel@...ts.infradead.org, james.morse@....com, maz@...nel.org, 
	will@...nel.org, kvmarm@...ts.linux.dev
Subject: Re: [PATCH v6] KVM: arm64: Add early_param to control WFx trapping

Oliver Upton <oliver.upton@...ux.dev> writes:

> On Thu, 23 May 2024 17:40:55 +0000, Colton Lewis wrote:
>> Add an early_params to control WFI and WFE trapping. This is to
>> control the degree guests can wait for interrupts on their own without
>> being trapped by KVM. Options for each param are trap and notrap. trap
>> enables the trap. notrap disables the trap. Note that when enabled,
>> traps are allowed but not guaranteed by the CPU architecture. Absent
>> an explicitly set policy, default to current behavior: disabling the
>> trap if only a single task is running and enabling otherwise.

>> [...]

> Applied to kvmarm/next, thanks!

> [1/1] KVM: arm64: Add early_param to control WFx trapping
>        https://git.kernel.org/kvmarm/kvmarm/c/0b5afe05377d

Thank you! And I will keep your comments in mind in the future.