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pr=C From: Ayan Kumar Halder To: CC: , , , , , Ayan Kumar Halder Subject: [RFC PATCH v1 04/12] Arm: GICv3: Emulate GICR_TYPER on AArch32 Date: Fri, 21 Oct 2022 16:31:20 +0100 Message-ID: <20221021153128.44226-5-ayankuma@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221021153128.44226-1-ayankuma@amd.com> References: <20221021153128.44226-1-ayankuma@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT022:EE_|MW4PR12MB5626:EE_ X-MS-Office365-Filtering-Correlation-Id: 8d5d9836-905d-4508-a848-08dab3796a6a 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:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(136003)(39860400002)(346002)(396003)(376002)(451199015)(40470700004)(36840700001)(46966006)(40460700003)(26005)(6666004)(1076003)(83380400001)(36860700001)(478600001)(336012)(47076005)(186003)(426003)(5660300002)(40480700001)(8936002)(2616005)(6916009)(54906003)(316002)(4326008)(70206006)(8676002)(41300700001)(82310400005)(70586007)(36756003)(2906002)(356005)(82740400003)(81166007)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2022 15:32:08.3667 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8d5d9836-905d-4508-a848-08dab3796a6a 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=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT022.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB5626 Refer Arm IHI 0069H ID020922, The upper 32 bits of GICR_TYPER represent the affinity whereas the lower 32 bits represent the other bits (eg processor number, etc). MPIDR_AFFINITY_LEVEL() returns a 32 bit number on aarch32. Thus, this is appended to return GICR_TYPER register. Signed-off-by: Ayan Kumar Halder --- xen/arch/arm/vgic-v3.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c index c31140eb20..d86b41a39f 100644 --- a/xen/arch/arm/vgic-v3.c +++ b/xen/arch/arm/vgic-v3.c @@ -190,14 +190,18 @@ static int __vgic_v3_rdistr_rd_mmio_read(struct vcpu *v, mmio_info_t *info, case VREG64(GICR_TYPER): { - uint64_t typer, aff; + uint64_t typer; + uint32_t aff; if ( !vgic_reg64_check_access(dabt) ) goto bad_width; - aff = (MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 3) << 56 | - MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 2) << 48 | - MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 1) << 40 | - MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 0) << 32); + aff = (MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 3) << 24 | + MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 2) << 16 | + MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 1) << 8 | + MPIDR_AFFINITY_LEVEL(v->arch.vmpidr, 0)); typer = aff; + + typer = typer << 32; + /* We use the VCPU ID as the redistributor ID in bits[23:8] */ typer |= v->vcpu_id << GICR_TYPER_PROC_NUM_SHIFT;