From: Per Larsen via B4 Relay <devnull+perlarsen.google.com@kernel.org>
To: Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Sudeep Holla <sudeep.holla@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
linux-kernel@vger.kernel.org, Per Larsen <perlarsen@google.com>
Subject: [PATCH v5 4/6] KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported
Date: Thu, 19 Jun 2025 09:02:57 +0000 [thread overview]
Message-ID: <20250619-virtio-msg-ffa-v5-4-412c98558807@google.com> (raw)
In-Reply-To: <20250619-virtio-msg-ffa-v5-0-412c98558807@google.com>
From: Per Larsen <perlarsen@google.com>
Prevent FFA_NOTIFICATION_* interfaces from being passed through to TZ.
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Per Larsen <perlarsen@google.com>
---
arch/arm64/kvm/hyp/nvhe/ffa.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 23b75b9f0bcc62724f0d0d185ac2ed2526375da4..6965aa947fb4529c35872ee3976ab8d0b02becca 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -669,6 +669,14 @@ static bool ffa_call_supported(u64 func_id)
case FFA_RXTX_MAP:
case FFA_MEM_DONATE:
case FFA_MEM_RETRIEVE_REQ:
+ /* Optional notification interfaces added in FF-A 1.1 */
+ case FFA_NOTIFICATION_BITMAP_CREATE:
+ case FFA_NOTIFICATION_BITMAP_DESTROY:
+ case FFA_NOTIFICATION_BIND:
+ case FFA_NOTIFICATION_UNBIND:
+ case FFA_NOTIFICATION_SET:
+ case FFA_NOTIFICATION_GET:
+ case FFA_NOTIFICATION_INFO_GET:
return false;
}
--
2.50.0.rc2.701.gf1e915cc24-goog
next prev parent reply other threads:[~2025-06-19 9:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 9:02 [PATCH v5 0/6] KVM: arm64: Support FF-A 1.2 and SEND_DIRECT2 ABI Per Larsen via B4 Relay
2025-06-19 9:02 ` [PATCH v5 1/6] KVM: arm64: Correct return value on host version downgrade attempt Per Larsen via B4 Relay
2025-06-19 9:02 ` [PATCH v5 2/6] KVM: arm64: Use SMCCC 1.2 in hyp_ffa_{init,post_init} Per Larsen via B4 Relay
2025-06-19 9:02 ` [PATCH v5 3/6] KVM: arm64: Use SMCCC 1.2 in host FF-A handler Per Larsen via B4 Relay
2025-06-22 13:01 ` Marc Zyngier
2025-06-19 9:02 ` Per Larsen via B4 Relay [this message]
2025-06-19 9:02 ` [PATCH v5 5/6] KVM: arm64: Bump the supported version of FF-A to 1.2 Per Larsen via B4 Relay
2025-06-19 9:02 ` [PATCH v5 6/6] KVM: arm64: Support FFA_MSG_SEND_DIRECT_REQ2 in host handler Per Larsen via B4 Relay
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