From: Snehal Koukuntla <snehalreddy@google.com>
To: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Sudeep Holla <sudeep.holla@kernel.org>
Cc: Vincent Donnefort <vdonnefort@google.com>,
Fuad Tabba <fuad.tabba@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Sebastian Ene <sebastianene@google.com>,
Mostafa Saleh <smostafa@google.com>,
Snehal Koukuntla <snehalreddy@google.com>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] firmware: arm_ffa: Add FFA_FN64_MEM_RECLAIM2 function ID
Date: Mon, 21 Sep 2026 16:47:47 +0000 [thread overview]
Message-ID: <20260921164748.2958578-2-snehalreddy@google.com> (raw)
In-Reply-To: <20260921164748.2958578-1-snehalreddy@google.com>
FF-A v1.3 ALP5 (DEN0140 rev J) introduces the optional FFA_MEM_RECLAIM2
(0xC4000091) ABI, which enables an Owner to reclaim exclusive access to
a subset of pages of a memory region without requiring the Relayer to
maintain intermediate transaction state.
Add the FFA_FN64_MEM_RECLAIM2 function ID definition to arm_ffa.h.
Link: https://support.arm.com/documentation/den0140/j
Signed-off-by: Snehal Koukuntla <snehalreddy@google.com>
---
include/linux/arm_ffa.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index e71d83ee0aef..c78cfd72832a 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -78,6 +78,7 @@
#define FFA_EL3_INTR_HANDLE FFA_SMC_32(0x8C)
#define FFA_MSG_SEND_DIRECT_REQ2 FFA_SMC_64(0x8D)
#define FFA_MSG_SEND_DIRECT_RESP2 FFA_SMC_64(0x8E)
+#define FFA_FN64_MEM_RECLAIM2 FFA_SMC_64(0x91)
/*
* For some calls it is necessary to use SMC64 to pass or return 64-bit values.
--
2.55.0.1082.g2b9226bbc0-goog
next prev parent reply other threads:[~2026-09-21 16:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 16:47 [PATCH 0/2] KVM: arm64: Support FFA_FN64_MEM_RECLAIM2 in host handler Snehal Koukuntla
2026-09-21 16:47 ` Snehal Koukuntla [this message]
2026-09-22 12:15 ` [PATCH 1/2] firmware: arm_ffa: Add FFA_FN64_MEM_RECLAIM2 function ID Sudeep Holla
2026-09-21 16:47 ` [PATCH 2/2] KVM: arm64: Support FFA_FN64_MEM_RECLAIM2 in host handler Snehal Koukuntla
2026-09-22 10:07 ` Vincent Donnefort
2026-09-22 11:16 ` Snehal Koukuntla
[not found] <20260921165841.93EE21F000FF@smtp.kernel.org>
2026-09-22 11:16 ` [PATCH 1/2] firmware: arm_ffa: Add FFA_FN64_MEM_RECLAIM2 function ID Snehal Koukuntla
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