From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f172.google.com (mail-pl1-f172.google.com [209.85.214.172]) (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 06F2A3C0603 for ; Sat, 10 Oct 2026 03:52:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791604334; cv=none; b=HfOQM+Lv68EVaMo0bBXFII7Yg48cVQ3RpXzzMnNb8AdfPrWfZnbPyhgedRSMdm79TmQEpeNEppc6+mA8/iorp8a7PeD64KzOpJPEDPTg/3YayBA2NPNeE/UijER9hYLEWUGX9OFonekbqUXLrGFRq/5ft2GeaLUPXeqcJhnK6Kw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791604334; c=relaxed/simple; bh=jo+m5QPbXOnlnB8tGHO6prCzJEnQFY+C7tx75MS9hs0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JfTkRrXYldDpwYCTgxajBZLvHh7u+a0Z+YIOJIQkuOSSqyN6cZFfpnfwxYdFxUobJpFw+khv7gFFzAqQFfq37FM3Q7mrKiyu+G45gNBmSbvQYqNs7jPVX96sjFfd7QeTAlvCSJI7j+rGMXMOgXr8SoLKScrnNuQSGS1rRfHcslA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=o7H8a61v; arc=none smtp.client-ip=209.85.214.172 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=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="o7H8a61v" Received: by mail-pl1-f172.google.com with SMTP id d9443c01a7336-2e8623790f8so11725ad.0 for ; Fri, 09 Oct 2026 20:52:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1791604332; x=1792209132; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=/PXHGGMNi+PHZe4WIVQ3ba08+1EpF9/N6ei9tB8/+nY=; b=o7H8a61vl34FJxoNkGnwbwpG5kAYHSyKk+BUwLK/i/nRESL4+qbr64gduofP7YvtAr h0cbHlp3AmJGy/wQ7QbedAUO6fIEBjltYQFGYi8Z/ITrgxqayPWcdILFecOjwJMIags8 BUVViYJok5BmQS/deVcysnwIbFQ+Q+KnWdHTWdtI86DMM4CHWEmkZdch9Boq0wXVMiDA PsMMC2l9qwnNwlYthLDQ02DZXK8RFDevXBIz86jqIP8WH/asFk94SUrUiixf9/oYIUYU kUyGxgHtzHj265ZOLdIYwOeKhv//sJEuAavVf/azCFe28TBFdkz/Ye8ugWk9FCAWgVyJ uqAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791604332; x=1792209132; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=/PXHGGMNi+PHZe4WIVQ3ba08+1EpF9/N6ei9tB8/+nY=; b=z6g4QTDEBWJXSNn4w/5/9KYrdSKBF2iPRej1xAAWBYS4ezcxtNXBBi/gCBqGumJE1h P1DEJUUzXlH8ScvWPCTO5qfxPkCBfW4ee5vWOozyrl/Etukl7d2BoDB5lakV25HayM4/ ZoyTORLHSoR1Q/MBmN4riRQAfXvTIzL1vwUjDmKvRpOTfXYngmWZHNc732Rw5GVr/+tn neHJN0d0LxniR8IDq3lETwAJ9v7AwCXOpcq7qIEmfNcwraJ0gabnlN0io3eMFaoZK6ml /LU9SXjOwE4/p6IxAbOCfVcLt6LmEQIq1WPgmT3z4+hqgg+FTz0t3mbmnbHncWLCEpLD 0eyA== X-Forwarded-Encrypted: i=1; AKwUvByr/Y7/gMh7T8p+G7o3nzWCmCbkMDJP/24pIi6UVsijvD01sgtVTTTMkUwV6KwBeaH2obM=@vger.kernel.org X-Gm-Message-State: AFq9FYIDc2blhTylPsds2FYNOu0b+1zU6KdsXuykn5gXNoIXs7iGyMod PErwZ6Nm5i7cQ4mY/pYfF0uMoSsG3HW3pxlo0rNb1Tj1kLGXyJ22smna9C8eyE23DQ== X-Gm-Gg: AYBFou2UGLIPcDBUh46cZRHJtKJLB78NipmQWBSStRYxRu+zvlOlD7VdXH0Zup1f2qx LP2FYaPx/AMipXGnTPliVOfz00x7f99uF57K/6168F2lCuMlCqaHLDI7lpbLnWaQFG1U0mGWiG2 LyopXTzg/dDlhucM5X61l68LzX/f9qrjDK2YpdNfY6G8RHgEiFA9y4xfOJmjC6LG4W7i45CxDYn qdwFfZiHMi2vsEJwzytqspXcmcyyqfZn6TB+oSVE4mZLrh+N1IbewK5WK9wp0aDPFnhRa4pzc8E rpR7LM5/JiFKzOPpW04eYW6S3BgJ/CL2aZMYYC521yrYCyJBbHtAWRC9id6odolLuERNUQsI5YC z0rlFLGlr8//WRB+Usl7V05n3qya+ydxyP8Ij0nEfP6HGBuXqOBtfyWPgMbdcQoB63CNUoauvU7 K+CpERMHBPaVFm9nnJWmNbrCf5hu/8sZA/l6ixdclZx13kjMrytYTDi9T4zrLyhkX7iNORcoIJ0 IZ0a4AZJs+E9xGRx9F/fV8+vEJjrjqCIHGqNO0sUCMBE+sf4GqCuDXTXptsMQUwl68= X-Received: by 2002:a17:903:2341:b0:2d5:db38:8010 with SMTP id d9443c01a7336-2e87e33677emr541325ad.15.1791604331811; Fri, 09 Oct 2026 20:52:11 -0700 (PDT) Received: from google.com (163.1.145.34.bc.googleusercontent.com. [34.145.1.163]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e8484c1641sm17105135ad.15.2026.10.09.20.52.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Oct 2026 20:52:09 -0700 (PDT) Date: Sat, 10 Oct 2026 03:52:07 +0000 From: Samiullah Khawaja To: Nicolin Chen Cc: David Woodhouse , Lu Baolu , Joerg Roedel , Will Deacon , Jason Gunthorpe , YiFei Zhu , Pranjal Shrivastava , Robin Murphy , Kevin Tian , Alex Williamson , Shuah Khan , iommu@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, Pratyush Yadav , Pasha Tatashin , David Matlack , Andrew Morton , Vipin Sharma Subject: Re: [PATCH v5 14/18] iommufd: Implement ioctl to mark HWPT for preservation Message-ID: References: <20260921004834.2601285-1-skhawaja@google.com> <20260921004834.2601285-15-skhawaja@google.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: On Wed, Oct 07, 2026 at 01:17:32PM -0700, Nicolin Chen wrote: >On Mon, Sep 21, 2026 at 12:48:30AM +0000, Samiullah Khawaja wrote: >> +int iommufd_hwpt_liveupdate_mark_preserve(struct iommufd_ucmd *ucmd) >> +{ >> + struct iommu_hwpt_liveupdate_mark_preserve *cmd = ucmd->cmd; >> + struct iommufd_hwpt_paging *hwpt_target; >> + struct iommufd_hwpt_paging *hwpt_paging; > >I'd move hwpt_paging inside xa_for_each_marked() and rename it to >"hwpt_marked". Then, hwpt_target can be simply "hwpt". Agreed. Will update. > >> + >> +/** >> + * struct iommu_hwpt_liveupdate_mark_preserve - ioctl(IOMMU_HWPT_LIVEUPDATE_MARK_PRESERVE) >> + * @size: sizeof(struct iommu_hwpt_liveupdate_mark_preserve) >> + * @hwpt_id: Iommufd object ID of the target HWPT > >HW pagetable ID to preserve for liveupdate Will update > >Nicolin Thanks, Sami