From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0653D28C5B1; Mon, 27 Apr 2026 08:55:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777280137; cv=none; b=VJeNBYOOVAZ4kuG7wKi6kZtb+eYR/2XPqdDQo1H5U6utqJZJNlD1Dy5Vg9h+l+u0Ji+qmpooxVBMZw6Si4o/pSNJ5xgo+XBKwWMjkAl93/cYVvBiAA86ILKX12rxbpiHrZtY6WBenefc9R0nE11jPo8EMiVz0/o2oBqtUSp+4MU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777280137; c=relaxed/simple; bh=bOeW3wbvkkrlNUf/VIWIVhSCHUYQcXavZMh9tYHAPFg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dsdhIru7QjrlNkPQ4SKxgImGrjG6dOYSgus61D3wEJcTBxXw9tC6ku5Wv3DpXxn4TAO3sRo8KartCBuripOTvzW7TOQeMOx2xYNqTWZ+4oxLDad1vI4LbO4laUn8vCHzejOcSEfBHukHp354brRg7XIVREHowH/75/CBqVXJVAg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=el4gRSMh; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="el4gRSMh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B750C19425; Mon, 27 Apr 2026 08:55:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777280136; bh=bOeW3wbvkkrlNUf/VIWIVhSCHUYQcXavZMh9tYHAPFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=el4gRSMhKtyPa8PfIyrtLcnxhEU67PzIeRckrMU2d/sCX6uHEDbYVpT1z9/3kcR3m FhXZyRQefVv5RMhGqFZpoIrSX2eLxueKjxm5Lf745+Xx9Vl5vzvUI/QzJDmEk2bs6M dXoNySpemHjGRhOdJV+1CbZ5rR9AzeScSn5m4cS7SIGQrBk2Mc5uQz8EjORYM9AND6 CzAruS+R8Ns3bdfknS3S6cZjM9LXRtUHF2jlw4BUIsA2kiqsD7xH8lvqLjESw0zc1O q++suWnwXeV9RZIQqBt57xDCY853fmmbJ40ncaS4CQZh283hJx2N3oSQ+0Xee2k4Nv BY3rWVUtKlVHA== From: "Aneesh Kumar K.V (Arm)" To: linux-coco@lists.linux.dev, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: "Aneesh Kumar K.V (Arm)" , Alexey Kardashevskiy , Catalin Marinas , Dan Williams , Jason Gunthorpe , Joerg Roedel , Jonathan Cameron , Marc Zyngier , Nicolin Chen , Pranjal Shrivastava , Robin Murphy , Samuel Ortiz , Steven Price , Suzuki K Poulose , Will Deacon , Xu Yilun Subject: [RFC PATCH v4 16/16] KVM: arm64: CCA: enable DA in realm create parameters Date: Mon, 27 Apr 2026 14:23:44 +0530 Message-ID: <20260427085344.941627-17-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260427085344.941627-1-aneesh.kumar@kernel.org> References: <20260427085344.941627-1-aneesh.kumar@kernel.org> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Now that we have all the required steps for DA in-place, enable DA while creating realm. Signed-off-by: Aneesh Kumar K.V (Arm) --- arch/arm64/include/asm/rmi_smc.h | 1 + arch/arm64/kvm/rmi.c | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/arm64/include/asm/rmi_smc.h b/arch/arm64/include/asm/rmi_smc.h index f3ad545d68b7..c02e2f087b1c 100644 --- a/arch/arm64/include/asm/rmi_smc.h +++ b/arch/arm64/include/asm/rmi_smc.h @@ -268,6 +268,7 @@ struct rmm_config { #define RMI_REALM_PARAM_FLAG_LPA2 BIT(0) #define RMI_REALM_PARAM_FLAG_SVE BIT(1) #define RMI_REALM_PARAM_FLAG_PMU BIT(2) +#define RMI_REALM_PARAM_FLAG_DA BIT(3) struct realm_params { union { /* 0x0 */ diff --git a/arch/arm64/kvm/rmi.c b/arch/arm64/kvm/rmi.c index cc9e045dcae9..e041c4caee79 100644 --- a/arch/arm64/kvm/rmi.c +++ b/arch/arm64/kvm/rmi.c @@ -691,6 +691,9 @@ static int realm_create_rd(struct kvm *kvm) if (r) goto out_undelegate_tables; + /* For now default enable DA */ + if (rmm_has_reg2_feature(RMI_FEATURE_REGISTER_2_DA)) + params->flags |= RMI_REALM_PARAM_FLAG_DA; params_phys = virt_to_phys(params); if (rmi_realm_create(rd_phys, params_phys)) { -- 2.43.0