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 v10 6/6] KVM: arm64: Bump the supported version of FF-A to 1.2
Date: Sat, 09 Aug 2025 02:33:24 +0000 [thread overview]
Message-ID: <20250809-virtio-msg-ffa-v10-6-189eeecf8ae8@google.com> (raw)
In-Reply-To: <20250809-virtio-msg-ffa-v10-0-189eeecf8ae8@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 22a369f8d1d8edcde45d77377e29dc08256c0bcc..68a7798857dfea9c93dd66069b0f99fb0a030c15 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -931,7 +931,7 @@ 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;
@@ -952,10 +952,10 @@ 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;
--
2.51.0.rc0.155.g4a0f42376b-goog
prev parent reply other threads:[~2025-08-09 2:33 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-09 2:33 [PATCH v10 0/6] KVM: arm64: Support FF-A 1.2 Per Larsen via B4 Relay
2025-08-09 2:33 ` [PATCH v10 1/6] KVM: arm64: Correct return value on host version downgrade attempt Per Larsen via B4 Relay
2025-08-09 2:33 ` [PATCH v10 2/6] KVM: arm64: Use SMCCC 1.2 for FF-A initialization and in host handler Per Larsen via B4 Relay
2025-08-19 10:46 ` Will Deacon
2025-08-09 2:33 ` [PATCH v10 3/6] KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported Per Larsen via B4 Relay
2025-08-09 2:33 ` [PATCH v10 4/6] KVM: arm64: Mark optional FF-A 1.2 interfaces " Per Larsen via B4 Relay
2025-08-09 2:33 ` [PATCH v10 5/6] KVM: arm64: Mask response to FFA_FEATURE call Per Larsen via B4 Relay
2025-08-09 2:33 ` Per Larsen via B4 Relay [this message]
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