[PATCH v11 6/6] KVM: arm64: Bump the supported version of FF-A to 1.2

From: Per Larsen via B4 Relay
Date: Tue Aug 19 2025 - 21:13:50 EST


From: Per Larsen <perlarsen@xxxxxxxxxx>

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@xxxxxxxxxx>
Signed-off-by: Ayrton Munoz <ayrton@xxxxxxxxxx>
Acked-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Per Larsen <perlarsen@xxxxxxxxxx>
---
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 a8ec1a94f3f8a86551895f4606918246c4ac1f39..4e16f9b96f637599873b16148c6e40cf1210aa3e 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -936,7 +936,7 @@ 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;
@@ -957,10 +957,10 @@ 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.rc1.167.g924127e9c0-goog