From: Marc Zyngier <maz@kernel.org>
To: Fuad Tabba <tabba@google.com>
Cc: kvmarm@lists.linux.dev, oupton@google.com, will@kernel.org,
pbonzini@redhat.com, james.morse@arm.com,
alexandru.elisei@arm.com, suzuki.poulose@arm.com,
reijiw@google.com, ricarkol@google.com, rananta@google.com,
jingzhangos@google.com
Subject: Re: [PATCH v2] KVM: arm64: Advertise ID_AA64PFR0_EL1.CSV2/3 to protected VMs
Date: Thu, 30 Mar 2023 18:51:34 +0100 [thread overview]
Message-ID: <86bkkaw2jd.wl-maz@kernel.org> (raw)
In-Reply-To: <20230330101738.698181-1-tabba@google.com>
On Thu, 30 Mar 2023 11:17:38 +0100,
Fuad Tabba <tabba@google.com> wrote:
>
> The existing pKVM code attempts to do that using a value
> initialized to 0 but never set. To advertise csv2/3 to a
> protected guest, pass their values to hyp when initializing hyp's
> view of guests' ID_AA64PFR0_EL1.
>
> Similar to non-protected KVM, these are system-wide, rather than
> per cpu, for simplicity.
>
> Fixes: 6c30bfb18d0b ("KVM: arm64: Add handlers for protected VM System Registers")
> Signed-off-by: Fuad Tabba <tabba@google.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
M.
--
Without deviation from the norm, progress is not possible.
prev parent reply other threads:[~2023-03-30 17:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-30 10:17 [PATCH v2] KVM: arm64: Advertise ID_AA64PFR0_EL1.CSV2/3 to protected VMs Fuad Tabba
2023-03-30 17:51 ` Marc Zyngier [this message]
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