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 1DB97211A19; Thu, 29 May 2025 13:38:11 +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=1748525892; cv=none; b=Dl2TDFnrn8jzckOm3cWgXgEJXqVF4s12ScgTI5iln1KgzcaBN0+s23unkeeefgEivV75YwJ40G4cV7mWHmFUq1+MCOEjayey9m7TEuE6jHwkQ7+ovfjvQMbUXk9qMt1O2E6e9udGBJqRQRdATIacjE26Fpvef788+jOrgtM8RrU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748525892; c=relaxed/simple; bh=LY04EkKCdI/ocKGgI1W5jQdahxO+d4WrIUTVEUwTMhI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Y43Tc2HHH5TzUYtb9YVFQx7QyvgSzPytG78ojDc5EXx5vmE19b2ic7H93+LGZbC2rawjBkPu7Gge7jNXdsL5/mIwGBCkZDz6jq9cDl/a04SU9LJ17zh/vgw39EoYqdygNd2/gFkzMt63+1xOwK8EBpRnyomPe/5kXRBWl6AN6pY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Smbrmo4K; 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="Smbrmo4K" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6ECF6C4CEE7; Thu, 29 May 2025 13:38:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748525891; bh=LY04EkKCdI/ocKGgI1W5jQdahxO+d4WrIUTVEUwTMhI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Smbrmo4K26g3nSy3HOrifYDRLbY7c1dMcRgrxXikeIsYgdsQc3NW7yCM8dUmCIldq aBFaEVkhFmJWQNSy0usTpX4K4uSQcXGOpMSQQqi1aol58RsFRqPYGYIOK4+2yIHrZl LxgEQilkzf1M0unoJQDI6RgEg2sUJpanAlPs+Sbes0qEUprnk7WGTMcAcKOdEQ3Pkf g7utjgMoM8aEnXK2rMvMFcbvrkN5PJzM8RsjqItZCvP+TDI+37NE8M8xk1hLdv8oVd 1nc0blMw9XkoRIZFh5nDQQZxOR/U/zS4mT4U6fPtaDWRPbIacqTT1QIC0MxX7UgEE4 gV5/dad0Xis8A== From: "Aneesh Kumar K.V (Arm)" To: Alexey Kardashevskiy , Xu Yilun Cc: Dan Williams , linux-coco@lists.linux.dev, linux-pci@vger.kernel.org, gregkh@linuxfoundation.org, lukas@wunner.de, suzuki.poulose@arm.com, sameo@rivosinc.com, jgg@nvidia.com, zhiw@nvidia.com, "Aneesh Kumar K.V (Arm)" Subject: [RFC PATCH 1/3] coco: tsm: Add tsm_bind/unbind helpers Date: Thu, 29 May 2025 19:07:54 +0530 Message-ID: <20250529133757.462088-1-aneesh.kumar@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This will be later used by iommufd bind a tdi to guest. Signed-off-by: Aneesh Kumar K.V (Arm) --- drivers/virt/coco/tsm-core.c | 18 ++++++++++++++++++ include/linux/tsm.h | 3 +++ 2 files changed, 21 insertions(+) diff --git a/drivers/virt/coco/tsm-core.c b/drivers/virt/coco/tsm-core.c index bd9e09b07412..0a7c9aa46c56 100644 --- a/drivers/virt/coco/tsm-core.c +++ b/drivers/virt/coco/tsm-core.c @@ -116,6 +116,24 @@ void tsm_ide_stream_unregister(struct pci_ide *ide) } EXPORT_SYMBOL_GPL(tsm_ide_stream_unregister); +int tsm_bind(struct device *dev, struct kvm *kvm, u64 tdi_id) +{ + if (!dev_is_pci(dev)) + return -EINVAL; + + return pci_tsm_bind(to_pci_dev(dev), kvm, tdi_id); +} +EXPORT_SYMBOL_GPL(tsm_bind); + +int tsm_unbind(struct device *dev) +{ + if (!dev_is_pci(dev)) + return -EINVAL; + + return pci_tsm_unbind(to_pci_dev(dev)); +} +EXPORT_SYMBOL_GPL(tsm_unbind); + static void tsm_release(struct device *dev) { struct tsm_core_dev *core = container_of(dev, typeof(*core), dev); diff --git a/include/linux/tsm.h b/include/linux/tsm.h index 915c4c8b061b..0aab8d037e71 100644 --- a/include/linux/tsm.h +++ b/include/linux/tsm.h @@ -118,6 +118,9 @@ struct tsm_core_dev *tsm_register(struct device *parent, void tsm_unregister(struct tsm_core_dev *tsm_core); struct pci_dev; struct pci_ide; +struct kvm; int tsm_ide_stream_register(struct pci_dev *pdev, struct pci_ide *ide); void tsm_ide_stream_unregister(struct pci_ide *ide); +int tsm_bind(struct device *dev, struct kvm *kvm, u64 tdi_id); +int tsm_unbind(struct device *dev); #endif /* __TSM_H */ -- 2.43.0