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 CEBF32FF159 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=t8KLkLKTkuORQe9X+suzNEiTg9yoqFWDPhpup7vxxR12wZEu2do8jdOehjXjIYmppZUjJxjjPneas+vaUwxpglTsrK34kuOCTblIHKnKfjN63imhNU6Lacow++2I86L+jSIwnsw3I8UugDnA96DZRbpIchvrZJnG6jLMrjNRqrU= 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=eh8DueG0; 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="eh8DueG0" Received: by mail-pf1-f202.google.com with SMTP id d2e1a72fcca58-7aa9f595688so8628674b3a.2 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=lists.linux.dev; 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=eh8DueG064aDiAlIDN6mRXdwWKv+104nyTIWeXKep6VKv1MzlCIvFBMXGum0OP+p33 FoxRepcxMvUyMFqK+BVebdvrTnjLdET9q9LfLBhIRowq/XFeW27zxMK3MvmOH1nhldUV IM+8Y7jtRNVQ9DkHfrEWkf7AUh2u+p5e3iZuqSJSDNQVm/ouZ+fpcSdp7yMaf4JcY/Ea bdGPHeRfMRE8Z/N6ohIa1ZXN2TZbWhazQxTPY3a3X9y5Ripkysq1hZXhi5TFbJQPMkjL J+vq/2/M7qv0k30bK73AeTeqiaSVe+pYVFZ70zXB0Srcy4uGn3sqb9O2Tte1Hr8OpXbw mmrw== 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=bcsyQTywmrZsDXGtWmJVQgnXDcV7GQsrZK8nCgKyxQ+cOgYDdIGRyHdZ3HBt4dIFeZ DUlFJFbVOOKaObs2TL3BZAW8BmO3/vxXsL6skNZ85Eivllmkz1tUPS+w0Aw3xh6PaE0a 17C6AhyDzRx927Vcyp/8N1fivSTL1QqLDFcXhykXiTRlq7FyxHSorg1NQIfs7rl8dSpz F8L+sBIOB2EVlZbSaioV1AaQrauyWwLC15ovTZT8H7Oqw76BP4pYRox1ctNmWi0jrYOI CwRGbBoTPu272u6x7bhomyMqQig1kGED7NWRl7npw+dBSFSZOnyvYNCiQ9QhPbcm2W95 CJpw== X-Forwarded-Encrypted: i=1; AJvYcCUrT9M00mka1GehhRfS7q6bPnagSz1rQ0Bla35xVgPrs2uU5AbfFIs95cZIW4ecydPTf0/W0A==@lists.linux.dev X-Gm-Message-State: AOJu0YyyHu63wJvPS8I3BtEHCjjT/qOx7i4VdrmqUqReTDYuN8BnVI7d 2KM6Nmr1/rcrHPNvzrEIxgQQ5wier6VK2TujlU5/GUFA2nAnRTfD330jMUQKOxMQrhkib06bcVO PKavcp5wV+Fb8zA== 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: iommu@lists.linux.dev 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