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X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?iL44YbgYZ4czpFw6Rzk38hR/JXPzVtsockRUq9MLRrKsThzUWn8RfdPb8MIz?= =?us-ascii?Q?1IPPK89+o0Yiw65EwwkeHuyA6uG7Qp3gGTrQJmXI65fromXmA84elguguzwR?= =?us-ascii?Q?t3XF7O81bsYOPPcNE2HzG9AabtNgM3Wjf34wWZZVIJYQ0pdPJEeQD29P8sb0?= =?us-ascii?Q?Zcv3AND+WaM6oykZO3qour9+7Lodzlr/fm1Xx17hZ65Bk5lmMFtIYxoa+ohX?= =?us-ascii?Q?YPtvVGedLDSiDBznv/kzSogHakV3U5pIgSP+rPVQBb7J+R0TPh3ZHd4UEs4+?= =?us-ascii?Q?rp09uCWvGLxbykXpTPaVDT55iqbu0/ePG+++69CE8hrkJvznkhJlG7hwnPS+?= =?us-ascii?Q?ZIv1Nge3AVPCef5vRstsn6+z8HplzTXTWr4vRbAlpucINursEtIbD5tTn7b3?= =?us-ascii?Q?Nii8mp9Gdm6sIcMVebnSm97H9ywjIMnMhmADhTLh+sFqQt8IQ+bqSjI7Wq1B?= =?us-ascii?Q?3yhWhcOxiAKB2t3CQxf/5P99dLTY9lacD21g0uh4XpuEYU9AByWztAcn2rlG?= =?us-ascii?Q?9AQplwVGAYaZnDAI6e8edjg9uCfSfQmk3pF9UkDNOan6smXGVpVg1aAfHEXx?= =?us-ascii?Q?Lc1SPBYyeRgqvD4MyHHRjdwupwLsMdY1wwtlQAwn85X6FjscAT6vbTM5ph1L?= =?us-ascii?Q?9xkemTbkjy7/SlB1Y5KuV+GvGV4wEKkN0r73UpZU9krtT3F6KdkSeocgKL0I?= =?us-ascii?Q?1fPlVWDIkFQoKV52lomkEOVKDdhLqZy2jQO769jJ62X9qd2WmlGC2qc0oedF?= =?us-ascii?Q?RLGZUx7C9ucUjFhrtmzWEFjgKJDr057SxoffGngwOZ+aN1VNjvabKpKq5KFZ?= =?us-ascii?Q?3oOXIgKftKGVTV0qsoI/RsnFB5CoBNG38f65JHMJqSQ5RQfPL7O4gmMq0a55?= =?us-ascii?Q?SvbrvSUmQnjCCYfClpg0Qob8h1+KL+KQp+0hjXg2woueaQWRgFgXrs5Ju7ln?= =?us-ascii?Q?26aEvPA5WTWEiZI0/IQUqD4yU8t3cjUWhpw/VN+EpH+MSutRxfw1ooMl7Di7?= =?us-ascii?Q?duBE1biuxocZ2NHnZyykpJd2nNEomyQX06awjfY79Xyr+hY9slpewlfh4RRy?= =?us-ascii?Q?RtIIoqdrmQJ2G2k4QmogcXG8QTMh88CLFW8QYF8xkf8gdMLhOXFNvP9Xj3Ob?= =?us-ascii?Q?iq2LzSGUud7Tx0XgkS8Ia9QekUWGSItn3D5ph61BcovSiXWEwBQuuhgbKhZM?= =?us-ascii?Q?WzSn8+FYxAYJc6kawY6hs3LwEH29TpM/tIGiUxBjv7f+3B7vFQ3gM8WXirds?= =?us-ascii?Q?qakUAOlrc5LuE8Rh8OEsX8E68aElWjQQt28BYAN4RPVtEO5VSv6RqOgLqLSR?= =?us-ascii?Q?rG2j9HJUlNL75PlSjU6yR+IRD5WtV5vNpvY5JCyFRm81/llu+SSIjf+xSq8O?= =?us-ascii?Q?OcKF99uaJIAuVlLw5KhOzTglOdEAvy5iWKcnlz2i/peh7XOfkCrX8Zt1prl9?= =?us-ascii?Q?AW4DG2JfZMZsX7IGlnthXMzfq/0TnYBm?= 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:(13230040)(376014)(1800799024)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Jul 2024 08:05:14.3318 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 142f9d9f-77bd-4ef3-0e88-08dc9f24b2a5 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: CY4PEPF0000EE39.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB9126 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1720426056209100001 Content-Type: text/plain; charset="utf-8" Fix bug introduced by 0762e2502f1f ("x86/physdev: factor out the code to al= locate and map a pirq"). After that re-factoring, when pirq<0 and current_pirq>0, it m= eans caller want to allocate a free pirq for irq but irq already has a mapped pi= rq, then it returns the negative pirq, so it fails. However, the logic before that re-factoring is different, it should return the current_pirq that irq was a= lready mapped to and make the call success. Fixes: 0762e2502f1f ("x86/physdev: factor out the code to allocate and map = a pirq") Signed-off-by: Jiqian Chen Signed-off-by: Huang Rui Signed-off-by: Jiqian Chen Reviewed-by: Jan Beulich --- xen/arch/x86/irq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/arch/x86/irq.c b/xen/arch/x86/irq.c index 017a94e31155..47477d88171b 100644 --- a/xen/arch/x86/irq.c +++ b/xen/arch/x86/irq.c @@ -2898,6 +2898,7 @@ static int allocate_pirq(struct domain *d, int index,= int pirq, int irq, d->domain_id, index, pirq, current_pirq); if ( current_pirq < 0 ) return -EBUSY; + pirq =3D current_pirq; } else if ( type =3D=3D MAP_PIRQ_TYPE_MULTI_MSI ) { --=20 2.34.1