From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f202.google.com (mail-pf1-f202.google.com [209.85.210.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0E972FE59A for ; Tue, 2 Dec 2025 23:03:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764716599; cv=none; b=Hl2PbncnQiAjS41P21A74h61ocb9L1aOdB8zGy96BHGToSyiQLurVh1/xTf0nxjs20kNlFT7ZvqVfvyEz7zBayrGiqzngCV9L8Ut4E7hJbq0XPQTVbpPhyaefa2RMoBa4geWjCpBGhLJHM0Fqv/y7sfdFjIWYU2s4hMfmVZttrI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764716599; c=relaxed/simple; bh=1ipPm8UXvL165F9GkVGcUQP4dOA8/4h2qdcDirT989A=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=uPiIJsbl1o71i4EeUukOkhHT1pAWQR3HHlat5KvxMLZ7X0OXvCgiXoQan6NRS7MlnsJUOIvu1YED75EJeV61n6S6EEeV3ZnTRtb7ik+MEJUBy6FofxVtX4ARwc3UnkGuEhXCaOXoqwDHD6dcepih6Dqbr10MWzTYTenRuDdQjsk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--skhawaja.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=W31Jnyea; arc=none smtp.client-ip=209.85.210.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--skhawaja.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="W31Jnyea" Received: by mail-pf1-f202.google.com with SMTP id d2e1a72fcca58-7c1df71b076so10108217b3a.0 for ; Tue, 02 Dec 2025 15:03:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1764716597; x=1765321397; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=SKB5fC33D0H7Z0K5HeryXmAmilE91yTdL7508I20zDA=; b=W31Jnyeaivc4YzIuopJS2KvSvAf64JZvhd71cg8MOLQ5gpvsO6zjaoRRDP0LLt5Eng PTRfFagsGytDpao/qjezHMiIqiVBIcTrFuhw9/mLtA0B4S5wENVDKUGmk4hv9LubydoY KkUxI4TZTgFuXaFT6NhAGYX0IuG2sAvKnm0kVOZL5owka5w+zD7VAEAUA+sj/9K6A702 +QHBHNC5fEQYof0z8dqFLKWkRUvWzNkr2E1SybucWoBxoJPKw+C48d+uV9kzOS80oVT8 8wFN84CvmhUnbQY2U2MP+ORaFKdnwUF42jxvWV7EtzOAymtKEUF2/Ma5czdl60MP1j3O xfAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764716597; x=1765321397; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=SKB5fC33D0H7Z0K5HeryXmAmilE91yTdL7508I20zDA=; b=UncSgrxXHKPAmMtHbEeUMxcIzhuFFgIRpS5LkIy5UO+iEgggLqu6sBndgjnwh4YPWE qHixOcAElx+LxIV4G6RHUYYqWqTcEgvIftCfPE6WZTpCbGsV5b8VxOvv4MM6Np3Uop53 Xkq6IIbELYBxnDjlEnkOEnHI50qqPQfc/nqgloPyUk6iOcYkBrzkc/1AWDoqcA+Nl0oj AfU/OzJgo00s9BqzMR6qVyTpqS8xyJJfV0yKGpl3A+6OcsWJF06va/g5YmDJLy3kp0gX erjVlWRksCBdhA5kVhNR8Mvsa7/pVqpsvyyWCjKhgRzKwiZfM7ZBPxdtaHhrWuP/AsOu 7xkQ== X-Forwarded-Encrypted: i=1; AJvYcCX66ufAMYksmmfWZlR4oCv1zeZWOBFwlci1+R3s/HdJrh7eOdmY0izP6kPg3kkgjzLNTVorxHwJSQ0jLYQ=@vger.kernel.org X-Gm-Message-State: AOJu0YwnJG4piQOSX/6Z1sCiW5fl/+9TO1pQimjza5uu/yEc9co2HI9n lTEavQawEtYPiZR21vyAxDs/ai1To+QY01G587fqX8gZiJAFERsX2ODAs85YmYlQ1atKIfluodp c8X/HryDkPZ/Naw== X-Google-Smtp-Source: AGHT+IGqwkejLheu2w9mVg7GdTNm2uE/SL9SkQKvI8QWaEiZxdn7fIeJbw9FoYZbMmFS4wXm1pycNKfcSNnDbw== X-Received: from pfuw18.prod.google.com ([2002:a05:6a00:14d2:b0:7b0:bc2e:9595]) (user=skhawaja job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a00:12cb:b0:7b7:828b:f569 with SMTP id d2e1a72fcca58-7e00e3b230fmr164918b3a.25.1764716597047; Tue, 02 Dec 2025 15:03:17 -0800 (PST) Date: Tue, 2 Dec 2025 23:02:38 +0000 In-Reply-To: <20251202230303.1017519-1-skhawaja@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20251202230303.1017519-1-skhawaja@google.com> X-Mailer: git-send-email 2.52.0.158.g65b55ccf14-goog Message-ID: <20251202230303.1017519-9-skhawaja@google.com> Subject: [RFC PATCH v2 08/32] iommu: Register IOMMU FLB with iommufd file handler From: Samiullah Khawaja To: David Woodhouse , Lu Baolu , Joerg Roedel , Will Deacon , Pasha Tatashin , Jason Gunthorpe , iommu@lists.linux.dev Cc: Samiullah Khawaja , Robin Murphy , Pratyush Yadav , Kevin Tian , Alex Williamson , linux-kernel@vger.kernel.org, Saeed Mahameed , Adithya Jayachandran , Parav Pandit , Leon Romanovsky , William Tu , Vipin Sharma , dmatlack@google.com, YiFei Zhu , Chris Li , praan@google.com Content-Type: text/plain; charset="UTF-8" Use the IOMMU FLB register/unregister API to associate it with iommufd LU file handler. Signed-off-by: Samiullah Khawaja --- drivers/iommu/iommufd/liveupdate.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/iommufd/liveupdate.c b/drivers/iommu/iommufd/liveupdate.c index 42b380229c57..782585aff44a 100644 --- a/drivers/iommu/iommufd/liveupdate.c +++ b/drivers/iommu/iommufd/liveupdate.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include @@ -362,10 +363,22 @@ static struct liveupdate_file_handler iommufd_lu_handler = { int iommufd_liveupdate_register_lufs(void) { - return liveupdate_register_file_handler(&iommufd_lu_handler); + int ret; + + ret = liveupdate_register_file_handler(&iommufd_lu_handler); + if (ret) + return ret; + + ret = iommu_liveupdate_register_flb(&iommufd_lu_handler); + if (ret) + liveupdate_unregister_file_handler(&iommufd_lu_handler); + + return ret; } int iommufd_liveupdate_unregister_lufs(void) { + WARN_ON(iommu_liveupdate_unregister_flb(&iommufd_lu_handler)); + return liveupdate_unregister_file_handler(&iommufd_lu_handler); } -- 2.52.0.158.g65b55ccf14-goog