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Smith" , Stewart Hildebrand , Huang Rui , Jiqian Chen , Huang Rui Subject: [RFC XEN PATCH v5 3/5] x86/pvh: Add PHYSDEVOP_setup_gsi for PVH dom0 Date: Fri, 12 Jan 2024 14:13:15 +0800 Message-ID: <20240112061317.418658-4-Jiqian.Chen@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240112061317.418658-1-Jiqian.Chen@amd.com> References: <20240112061317.418658-1-Jiqian.Chen@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS3PEPF000099D7:EE_|SA0PR12MB7073:EE_ X-MS-Office365-Filtering-Correlation-Id: d720b8a1-5326-4eb9-0ff5-08dc1335d619 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230031)(4636009)(136003)(396003)(39860400002)(346002)(376002)(230922051799003)(1800799012)(82310400011)(451199024)(186009)(64100799003)(36840700001)(46966006)(40470700004)(40480700001)(40460700003)(86362001)(36756003)(356005)(81166007)(82740400003)(36860700001)(7696005)(6666004)(8676002)(8936002)(4326008)(5660300002)(16526019)(47076005)(2616005)(1076003)(426003)(336012)(26005)(70206006)(6916009)(316002)(54906003)(70586007)(4744005)(2906002)(7416002)(41300700001)(478600001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2024 06:15:12.4991 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d720b8a1-5326-4eb9-0ff5-08dc1335d619 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS3PEPF000099D7.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA0PR12MB7073 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1705040138277100003 Content-Type: text/plain; charset="utf-8" On PVH dom0, the gsis don't get registered, but the gsi of a passthrough device must be configured for it to be able to be mapped into a hvm domU. On Linux kernel side, it calles PHYSDEVOP_setup_gsi for passthrough devices to register gsi when dom0 is PVH. So, add PHYSDEVOP_setup_gsi for above purpose. Co-developed-by: Huang Rui Signed-off-by: Jiqian Chen --- xen/arch/x86/hvm/hypercall.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/xen/arch/x86/hvm/hypercall.c b/xen/arch/x86/hvm/hypercall.c index 493998b42ec5..46f51ee459f6 100644 --- a/xen/arch/x86/hvm/hypercall.c +++ b/xen/arch/x86/hvm/hypercall.c @@ -76,6 +76,12 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void= ) arg) case PHYSDEVOP_unmap_pirq: break; =20 + case PHYSDEVOP_setup_gsi: + if ( !is_hardware_domain(currd) ) + return -EOPNOTSUPP; + ASSERT(!has_pirq(currd)); + break; + case PHYSDEVOP_eoi: case PHYSDEVOP_irq_status_query: case PHYSDEVOP_get_free_pirq: --=20 2.34.1