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Message-ID: <6e46b358-5be9-4bbd-b66c-4a911db655f8@arm.com>
Date: Fri, 2 May 2025 13:22:04 +0100
From: Suzuki K Poulose <suzuki.poulose@....com>
To: Steven Price <steven.price@....com>, kvm@...r.kernel.org,
kvmarm@...ts.linux.dev
Cc: Catalin Marinas <catalin.marinas@....com>, Marc Zyngier <maz@...nel.org>,
Will Deacon <will@...nel.org>, James Morse <james.morse@....com>,
Oliver Upton <oliver.upton@...ux.dev>, Zenghui Yu <yuzenghui@...wei.com>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Joey Gouly <joey.gouly@....com>, Alexandru Elisei
<alexandru.elisei@....com>, Christoffer Dall <christoffer.dall@....com>,
Fuad Tabba <tabba@...gle.com>, linux-coco@...ts.linux.dev,
Ganapatrao Kulkarni <gankulkarni@...amperecomputing.com>,
Gavin Shan <gshan@...hat.com>, Shanker Donthineni <sdonthineni@...dia.com>,
Alper Gun <alpergun@...gle.com>, "Aneesh Kumar K . V"
<aneesh.kumar@...nel.org>
Subject: Re: [PATCH v8 14/43] KVM: arm64: Support timers in realm RECs
On 16/04/2025 14:41, Steven Price wrote:
> The RMM keeps track of the timer while the realm REC is running, but on
> exit to the normal world KVM is responsible for handling the timers.
>
> The RMM doesn't provide a mechanism to set the counter offset, so don't
> expose KVM_CAP_COUNTER_OFFSET for a realm VM.
>
> A later patch adds the support for propagating the timer values from the
> exit data structure and calling kvm_realm_timers_update().
>
> Signed-off-by: Steven Price <steven.price@....com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>
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