From nobody Tue Oct 7 07:18:19 2025 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.19]) (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 4319820AF9A for ; Mon, 14 Jul 2025 04:52:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.19 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752468775; cv=none; b=ig9OjMsXtcjsaPfRwZXBH4afMistIpEukqFeI3cxy0cnqJVyYtIRy+090aJf53P2Tya9WQiAPEFDcaNcPQZ30JFPB2Inpcu0cGhwOQqvRFUwSLzUexzbbf8/ltg8874z/TVws/+QR/OngRx3LUZggNXWhQMAqwMwljgngzussf0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752468775; c=relaxed/simple; bh=uAR7aJXKMAUUzYnjgFC0oh/4Ts6cvw1XnZBBjFHogEU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=K70IdjyHFFCpDQWsXClp2W74maP7OOIy9anOisPwTPBo8wJzOAwd5mAjKaxxPs1tGnlIaWA2ykaHXthUfFaPVZLSEbShNF75vHMpsY/4k3ObWkNILPp52v4uTVa0nFHHy77ybqFXvUqEAp/Q11EpwtFGMmE9nOGFWRPjfvttW78= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=f2osqrn/; arc=none smtp.client-ip=192.198.163.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="f2osqrn/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752468774; x=1784004774; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=uAR7aJXKMAUUzYnjgFC0oh/4Ts6cvw1XnZBBjFHogEU=; b=f2osqrn/vUo4Q4Py6cmKo0HEsLPVONKtflNG0+jLCNGOyXLFUd/zn3tg I49Lsv0//KqRHS6Me7ijXAbQYXxcnIyxqPt44qV4zFDkpYt4++8eZuLCX C/qBgFJ1FMva6dQlIbqfsVOe40RHJLZEdrLQL/ljQCp2U4VIXbpaEgf/o XsJ36EPQ/4CQyLr7CwjYnC2VxxH3sHiL5JeOCIpEnrI2vmGwnwcogCvvN 0KqBcdI4cm83MUFfOTU8736vH/AP10ibimNjTJp+FjzdR4pnbbwEUOWKh 286Nz4oRAS6LA6VbypZT6qeHRGinNyZB66Gsq8YHGuvmGGjCwKRzo9JfY A==; X-CSE-ConnectionGUID: Gq6Wz+Y4SkCIgK4Rmt+C9w== X-CSE-MsgGUID: UxU5eyRMTuypoHJn64Vr3w== X-IronPort-AV: E=McAfee;i="6800,10657,11491"; a="53765052" X-IronPort-AV: E=Sophos;i="6.16,310,1744095600"; d="scan'208";a="53765052" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Jul 2025 21:52:53 -0700 X-CSE-ConnectionGUID: C5MQhJVvRwK2Uia7V1fJ1g== X-CSE-MsgGUID: xTBFJSpyQbaI0L8WKSK7uA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,310,1744095600"; d="scan'208";a="161166166" Received: from allen-box.sh.intel.com ([10.239.159.52]) by orviesa003.jf.intel.com with ESMTP; 13 Jul 2025 21:52:53 -0700 From: Lu Baolu To: Joerg Roedel Cc: iommu@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH 05/11] iommu/vt-d: Do not wipe out the page table NID when devices detach Date: Mon, 14 Jul 2025 12:50:22 +0800 Message-ID: <20250714045028.958850-6-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250714045028.958850-1-baolu.lu@linux.intel.com> References: <20250714045028.958850-1-baolu.lu@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jason Gunthorpe The NID is used to control which NUMA node memory for the page table is allocated it from. It should be a permanent property of the page table when it was allocated and not change during attach/detach of devices. Reviewed-by: Wei Wang Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe Link: https://lore.kernel.org/r/3-v3-dbbe6f7e7ae3+124ffe-vtd_prep_jgg@nvidi= a.com Signed-off-by: Lu Baolu --- drivers/iommu/intel/iommu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 5c798f30dbc4..55e0ba4d20ae 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1391,7 +1391,6 @@ void domain_detach_iommu(struct dmar_domain *domain, = struct intel_iommu *iommu) if (--info->refcnt =3D=3D 0) { ida_free(&iommu->domain_ida, info->did); xa_erase(&domain->iommu_array, iommu->seq_id); - domain->nid =3D NUMA_NO_NODE; kfree(info); } } --=20 2.43.0