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b=Ifq0aaI0q3R4qrB9y5l32amdMI7GeftkzkBg In92+tXXd0okEc4RyTa6tMePQxAOvOY7oLAje8utCiO4EfBXRVpQyKbCU0bsD234 UPbWY1dpASS3y3KTfs8IaDoLPnRXZ6n8oudGJaFtS37VxoQsWsUA7XrWWNNn2R8e +F1DWkZX4tLtTa9VbEcE34IE6UaYKySV2hFEnJ8WqitspeBITCP1bxzetuHYNO0k k8uSssMSseDWuwOrAv8DwgfJxIB+69LYiOYD8WMgFuj35Zv5T0RhfjFZ2J0dReSo tzg3IdcYFg4B7ezVJQhg7ibBFhtSR2sTrSc8NZw8W+uoooHeJw== X-Mailer: SER-76bead168636dc6ed1c9e51ce4dea80dbdd4163750742b614a4d871e565792b7 X-Cloudmark-MID: xJA9vVhMbkQ6qxJAAvRcZW X-Proofpoint-CID: eb09f7eb-2dc2-34ab-a188-7b293c1db1fe From: dmukhin@ford.com Date: Mon, 2 Mar 2026 22:23:21 -0800 To: Anthony PERARD Cc: dmukhin@ford.com, xen-devel@lists.xenproject.org, andrew.cooper3@citrix.com, jbeulich@suse.com, julien@xen.org, michal.orzel@amd.com, roger.pau@citrix.com, sstabellini@kernel.org Subject: Re: [PATCH v5] xen/domain: introduce DOMID_ANY Message-ID: References: <20260205235126.3764953-1-dmukhin@ford.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: PSER-M365-App: SER-APP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-02_05,2026-03-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 spamscore=0 phishscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603030041 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00004685:EE_|SJ2PR16MB6249:EE_ X-MS-Office365-Filtering-Correlation-Id: 9447569c-685f-40b8-57af-08de78ed60fb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|36860700013|82310400026; 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> > > > - v &= DOMID_MASK; > > - if (!libxl_domid_valid_guest(v)) > > - continue; > > - > > - local_domid = v; > > + local_domid = v & DOMID_MASK; > > } else { > > local_domid = info->domid; /* May not be valid */ > > } > > > > + if (!libxl_domid_valid_guest(local_domid)) > > + local_domid = DOMID_ANY; > > Well, that make it possible to have DOMID_ANY selected when a "random" > domid was asked for, and this value is more likely than any other domid. > I don't think it's wise to change that. The domid generated in the > random case was already valid, no need to check again. > > Coud you move the new validity check into the case where domid isn't > "random" or introduce a new case in the if/else chain ? > (something like that for the second option: if (domid==random) elif > (domid.is_valid) else (use domid)) Will do, thanks. -- Denis