From: Per Larsen <perlarsen@google.com>
Date: Wed, 20 Aug 2025 01:10:07 +0000 (+0000)
Subject: KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported
X-Git-Tag: v6.18-rc1~95^2~5^2~10^2~3
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=79195f342417ff773048515964707aba3bfe0e41;p=thirdparty%2Flinux.git

KVM: arm64: Mark FFA_NOTIFICATION_* calls as unsupported

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>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---

diff --git a/arch/arm64/kvm/hyp/nvhe/ffa.c b/arch/arm64/kvm/hyp/nvhe/ffa.c
index 8290396384a2a..40a785b6ed063 100644
--- a/arch/arm64/kvm/hyp/nvhe/ffa.c
+++ b/arch/arm64/kvm/hyp/nvhe/ffa.c
@@ -670,6 +670,14 @@ 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;
 	}