From: Marc Zyngier <maz@kernel.org>
To: Per Larsen <perl@immunant.com>
Cc: linux-kernel@vger.kernel.org,
"qperret@google.com" <qperret@google.com>,
"sebastianene@google.com" <sebastianene@google.com>,
kernel-team@android.com, "will@kernel.org" <will@kernel.org>,
"sudeep.holla@arm.com" <sudeep.holla@arm.com>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
yuzenghui@huawei.com, Armelle Laine <armellel@google.com>,
arve@android.org
Subject: Re: [PATCH 2/3] KVM: arm64: Bump the supported version of FF-A to 1.2
Date: Fri, 02 May 2025 09:49:30 +0100 [thread overview]
Message-ID: <86plgrgzxh.wl-maz@kernel.org> (raw)
In-Reply-To: <CA+AY4XfcDKiSpN-UbrfGdqshQvw+LhY59SSuUmB6XQRYh9m0sw@mail.gmail.com>
On Fri, 02 May 2025 04:53:51 +0100,
Per Larsen <perl@immunant.com> wrote:
>
> FF-A version 1.2 introduces the DIRECT_REQ2 ABI. Bump the FF-A version
> preferred by the hypervisor as a precursor to implementing the 1.2-only
> FFA_MSG_SEND_DIRECT_REQ2 and FFA_MSG_SEND_RESP2 messaging interfaces.
>
> We must also use SMCCC 1.2 for 64-bit SMCs if hypervisor negotiated FF-A
> 1.2, so ffa_set_retval is updated and a new function to call 64-bit smcs
> using SMCCC 1.2 with fallback to SMCCC 1.1 is introduced.
>
> Update deny-list in ffa_call_supported to mark FFA_NOTIFICATION_* and
> interfaces added in FF-A 1.2 as unsupported lest they get forwarded.
>
> Signed-off-by: Ayrton Munoz <ayrton@google.com>
> Signed-off-by: Per Larsen <perlarsen@google.com>
> Signed-off-by: Per Larsen <perl@immunant.com>
Who is the author of this patch? Please follow the documentation when
it comes to patch attribution.
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2025-05-02 8:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-02 3:53 [PATCH 2/3] KVM: arm64: Bump the supported version of FF-A to 1.2 Per Larsen
2025-05-02 8:49 ` Marc Zyngier [this message]
-- strict thread matches above, loose matches on Subject: below --
2025-05-02 9:21 [PATCH 0/3] KVM: arm64: Support FF-A 1.2 and SEND_DIRECT2 ABI Per Larsen
2025-05-02 9:21 ` [PATCH 2/3] KVM: arm64: Bump the supported version of FF-A to 1.2 Per Larsen
2025-05-06 12:01 ` Sebastian Ene
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