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 EF12E1C07ED; Tue, 15 Oct 2024 13:12:09 +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=1728997930; cv=none; b=BWEdD7GBH2jzdqvxgAVh9CsLvMAjH4UZzL8nm2ztA4xmuc4dOTU7s48xuvWnlKMFdlNn0jV4AI26ANi/o9J1TovR3YjITqJkr+GRcYuA8+sxFtGBHyo+SsjIX+w8KjXQRSthHZkZYnKWLVz35A5VqM7qotkL/7VmVGrPWQIOcJ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728997930; c=relaxed/simple; bh=VrCN6hRIR6PN+ahJrmIRrSjzY6Uvj2S6tP8HyOro/Ps=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pmp2ABJq9XWtG93bOjrp0ZXZQi7q5fXmDuY2lz8IMpO39VBSayymX64wRdUOXYwB5ZXhzfTsfYB2a7c0/JnakBJVsh2fPBdLxyYeUH18PTeben5Q1dgpbK9hLFKtKL+OKy0lVQSAIglhpAtaVheHYe73iPIejcDCu8IJd2EjfQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=YjroMde5; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="YjroMde5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F0BBC4CEC6; Tue, 15 Oct 2024 13:12:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1728997929; bh=VrCN6hRIR6PN+ahJrmIRrSjzY6Uvj2S6tP8HyOro/Ps=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YjroMde5WBfnk25E2vAOlbrkNq+T3bAPRmxum7Q2WWdiHw1jE4JTpNMKdKv5y7H8C S1RJzOFLpVYYA+A/kE0UsqabKQwQQ3mLVgSN7rKYaG6quYs2SpBbincq1Y0vJ1Kq4K csAN15R7tFW/pixOEfz7Ovmv1RMxcWBbSUxgrNlk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lu Baolu , Jason Gunthorpe , Kevin Tian , Jerry Snitselaar , Joerg Roedel , Sasha Levin Subject: [PATCH 5.10 329/518] iommu/vt-d: Always reserve a domain ID for identity setup Date: Tue, 15 Oct 2024 14:43:53 +0200 Message-ID: <20241015123929.676479829@linuxfoundation.org> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241015123916.821186887@linuxfoundation.org> References: <20241015123916.821186887@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lu Baolu [ Upstream commit 2c13012e09190174614fd6901857a1b8c199e17d ] We will use a global static identity domain. Reserve a static domain ID for it. Signed-off-by: Lu Baolu Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian Reviewed-by: Jerry Snitselaar Link: https://lore.kernel.org/r/20240809055431.36513-4-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin --- drivers/iommu/intel/iommu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 6be92e0afdb06..c694ecbd304e2 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1847,10 +1847,10 @@ static int iommu_init_domains(struct intel_iommu *iommu) * entry for first-level or pass-through translation modes should * be programmed with a domain id different from those used for * second-level or nested translation. We reserve a domain id for - * this purpose. + * this purpose. This domain id is also used for identity domain + * in legacy mode. */ - if (sm_supported(iommu)) - set_bit(FLPT_DEFAULT_DID, iommu->domain_ids); + set_bit(FLPT_DEFAULT_DID, iommu->domain_ids); return 0; } -- 2.43.0