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helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Ayan Kumar Halder To: CC: , , , , , , Ayan Kumar Halder Subject: [RFC PATCH v1 01/12] Arm: GICv3: Sysreg emulation is applicable for Aarch64 only Date: Mon, 24 Oct 2022 19:19:05 +0100 Message-ID: <20221024181917.60416-2-ayankuma@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221024181917.60416-1-ayankuma@amd.com> References: <20221024181917.60416-1-ayankuma@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT090:EE_|BN9PR12MB5291:EE_ X-MS-Office365-Filtering-Correlation-Id: e7d79043-67fc-49f3-c1bd-08dab5ec8a92 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)(346002)(136003)(376002)(396003)(39860400002)(451199015)(40470700004)(36840700001)(46966006)(41300700001)(40460700003)(82310400005)(478600001)(356005)(81166007)(54906003)(316002)(6916009)(6666004)(36860700001)(5660300002)(36756003)(2906002)(186003)(47076005)(336012)(82740400003)(70586007)(4326008)(8676002)(1076003)(70206006)(40480700001)(26005)(2616005)(426003)(8936002)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Oct 2022 18:21:16.6254 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e7d79043-67fc-49f3-c1bd-08dab5ec8a92 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: CO1NAM11FT090.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR12MB5291 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1666635707735100001 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Refer ARM DDI 0487G.b ID072021, EC=3D=3D0b011000 is supported for Aarch64 s= tate only. This is when MSR, MRS, System instruction execution in AArch64 state is trapped, that is not reported using EC 0b000000, 0b000001 or 0b000111. Signed-off-by: Ayan Kumar Halder --- xen/arch/arm/vgic-v3.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c index 0c23f6df9d..c31140eb20 100644 --- a/xen/arch/arm/vgic-v3.c +++ b/xen/arch/arm/vgic-v3.c @@ -1520,6 +1520,7 @@ static bool vgic_v3_emulate_sgi1r(struct cpu_user_reg= s *regs, uint64_t *r, } } =20 +#ifdef CONFIG_ARM_64 static bool vgic_v3_emulate_sysreg(struct cpu_user_regs *regs, union hsr h= sr) { struct hsr_sysreg sysreg =3D hsr.sysreg; @@ -1540,6 +1541,7 @@ static bool vgic_v3_emulate_sysreg(struct cpu_user_re= gs *regs, union hsr hsr) return false; } } +#endif =20 static bool vgic_v3_emulate_cp64(struct cpu_user_regs *regs, union hsr hsr) { @@ -1563,8 +1565,10 @@ static bool vgic_v3_emulate_reg(struct cpu_user_regs= *regs, union hsr hsr) { switch (hsr.ec) { +#ifdef CONFIG_ARM_64 case HSR_EC_SYSREG: return vgic_v3_emulate_sysreg(regs, hsr); +#endif case HSR_EC_CP15_64: return vgic_v3_emulate_cp64(regs, hsr); default: --=20 2.17.1