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, ahomescu@google.com,
armellel@google.com, arve@android.com, ayrton@google.com,
qperret@google.com, sebastianene@google.com, qwandor@google.com,
Per Larsen <perlarsen@google.com>
Subject: [PATCH v9 6/6] KVM: arm64: Bump the supported version of FF-A to 1.2
Date: Wed, 30 Jul 2025 21:15:09 +0000 [thread overview]
Message-ID: <20250730-virtio-msg-ffa-v9-6-7f1b55c8d149@google.com> (raw)
In-Reply-To: <20250730-virtio-msg-ffa-v9-0-7f1b55c8d149@google.com>
From: Per Larsen <perlarsen@google.com>
FF-A version 1.2 introduces the DIRECT_REQ2 ABI. Bump the FF-A version
preferred by the hypervisor to enable implementation of the 1.2-only
FFA_MSG_SEND_DIRECT_REQ2 and FFA_MSG_SEND_RESP2 messaging interfaces.
Co-developed-by: Ayrton Munoz <ayrton@google.com>
Signed-off-by: Ayrton Munoz <ayrton@google.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Per Larsen <perlarsen@google.com>
---
arch/arm64/kvm/hyp/nvhe/ffa.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 6afc7e97a1e1e5e23ccf9cc11553b3fdaf8a51e7..a9d827ec5a11743c86ba3f36bf3671cbecd4f3c1 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -934,7 +934,7 @@ int hyp_ffa_init(void *pages)
arm_smccc_1_2_smc(&(struct arm_smccc_1_2_regs) {
.a0 = FFA_VERSION,
- .a1 = FFA_VERSION_1_1,
+ .a1 = FFA_VERSION_1_2,
}, &res);
if (res.a0 == FFA_RET_NOT_SUPPORTED)
return 0;
@@ -955,10 +955,10 @@ int hyp_ffa_init(void *pages)
if (FFA_MAJOR_VERSION(res.a0) != 1)
return -EOPNOTSUPP;
- if (FFA_MINOR_VERSION(res.a0) < FFA_MINOR_VERSION(FFA_VERSION_1_1))
+ if (FFA_MINOR_VERSION(res.a0) < FFA_MINOR_VERSION(FFA_VERSION_1_2))
hyp_ffa_version = res.a0;
else
- hyp_ffa_version = FFA_VERSION_1_1;
+ hyp_ffa_version = FFA_VERSION_1_2;
tx = pages;
pages += KVM_FFA_MBOX_NR_PAGES * PAGE_SIZE;
--
2.50.1.552.g942d659e1b-goog
prev parent reply other threads:[~2025-07-30 21:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-30 21:15 [PATCH v9 0/6] KVM: arm64: Support FF-A 1.2 Per Larsen via B4 Relay
2025-07-30 21:15 ` [PATCH v9 1/6] KVM: arm64: Correct return value on host version downgrade attempt Per Larsen via B4 Relay
2025-07-30 21:15 ` [PATCH v9 2/6] KVM: arm64: Use SMCCC 1.2 for FF-A initialization and in host handler Per Larsen via B4 Relay
2025-08-08 12:39 ` Will Deacon
2025-07-30 21:15 ` [PATCH v9 3/6] KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported Per Larsen via B4 Relay
2025-07-30 21:15 ` [PATCH v9 4/6] KVM: arm64: Mark optional FF-A 1.2 interfaces " Per Larsen via B4 Relay
2025-08-08 12:41 ` Will Deacon
2025-07-30 21:15 ` [PATCH v9 5/6] KVM: arm64: Mask response to FFA_FEATURE call Per Larsen via B4 Relay
2025-07-30 21:15 ` Per Larsen via B4 Relay [this message]
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