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Smith" , Stewart Hildebrand , Huang Rui , Jiqian Chen , Huang Rui Subject: [RFC XEN PATCH v7 3/5] x86/pvh: Add PHYSDEVOP_setup_gsi for PVH dom0 Date: Fri, 19 Apr 2024 11:53:38 +0800 Message-ID: <20240419035340.608833-4-Jiqian.Chen@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240419035340.608833-1-Jiqian.Chen@amd.com> References: <20240419035340.608833-1-Jiqian.Chen@amd.com> MIME-Version: 1.0 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: CH2PEPF0000014A:EE_|SA0PR12MB4479:EE_ X-MS-Office365-Filtering-Correlation-Id: 2e8c7bec-8562-4b10-d303-08dc60246b8c 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)(7416005)(1800799015)(36860700004)(82310400014)(376005);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Apr 2024 03:54:31.8623 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2e8c7bec-8562-4b10-d303-08dc60246b8c 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: CH2PEPF0000014A.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA0PR12MB4479 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. Signed-off-by: Huang Rui Signed-off-by: Jiqian Chen --- xen/arch/x86/hvm/hypercall.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/xen/arch/x86/hvm/hypercall.c b/xen/arch/x86/hvm/hypercall.c index d49fb8b548a3..98e3c6b176ff 100644 --- a/xen/arch/x86/hvm/hypercall.c +++ b/xen/arch/x86/hvm/hypercall.c @@ -76,6 +76,11 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void) arg) case PHYSDEVOP_unmap_pirq: break; + case PHYSDEVOP_setup_gsi: + if ( !is_hardware_domain(currd) ) + return -EOPNOTSUPP; + break; + case PHYSDEVOP_eoi: case PHYSDEVOP_irq_status_query: case PHYSDEVOP_get_free_pirq: