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Peter Anvin" , Sumit Garg , , Subject: [PATCH v4 0/8] Export platform features from ccp driver Date: Fri, 10 Mar 2023 15:19:43 -0600 Message-ID: <20230310211954.2490-1-mario.limonciello@amd.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT021:EE_|PH0PR12MB8150:EE_ X-MS-Office365-Filtering-Correlation-Id: aa5d29bd-42e8-48fe-aaf5-08db21ad8978 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: GjB+onl2UDR5p+U3VxJXsVx3nsaEAFdARNf5VPOmJksBZLCADYrR7maHmSFOpmsd65a5ULMypHYTJs427UBhSaxMupobdjGpSAVb2mdfzYXP+hf2eQhjY4TB9A9CUP13V80x5TNVnUJF+s/hhUqKkJJnGc2RnCwUtWvgonN7Qog+/l2hmuFGkVnle5E5XZf77lH8IZ2fRq38UZFpZ0bOZoiiGx/TVQe0P4nFwnCRjn3NKqO7HKbPBFVRdWbSiGtk9oBD3O0jlpVzEB6iIG9yVLhp4SBgpap67NCya7acJideTnpl9IT3m+WvS7gzBrOQAXzf8e8Xg22WuQ7T3pbjIjDuv1fPYPBqTkfJcOB0VB/r49R+XAW5SYzLrK0Fa/z8e4Y93tkRZUQF911EKxGWLdcjJ498dTxk+d6BpgjklJgnF9xqtGMhCZJWCRdXHbCFW3LNs2s5DfVpf9e3i3YD4xtFibEJ6fNQAAAHZr/Zz1z4vop0f9HLv/5Ii4zGLrNrtK3+4zrzNA7lui515Awf1lrk41PnTK59OzUxuCDEVCJ88flBL1j94fwIRXqymK/F25J8dMj6DP1mtMlzURJxTzhEHFa1aqdP2TO+5BUBsuSIOUJQgt3i3Fdcx71fUi/73CgUb5gdP6eBYnO4soFjDA0HB18vTQfOQwcMc1jBDFGtSTVct2YWnm54SPPaaPFEylewh4mEK+1jxzzakmtNfA3yGDzoenpHbGO+o3aNNPsjpYMbJirzwA8/VzN1fmHA 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:(13230025)(4636009)(39860400002)(346002)(376002)(136003)(396003)(451199018)(40470700004)(36840700001)(46966006)(82310400005)(36860700001)(6666004)(82740400003)(83380400001)(426003)(47076005)(36756003)(478600001)(40480700001)(356005)(110136005)(54906003)(921005)(81166007)(316002)(336012)(2616005)(40460700003)(7696005)(186003)(1076003)(26005)(16526019)(7416002)(2906002)(5660300002)(44832011)(70206006)(70586007)(8936002)(8676002)(86362001)(41300700001)(4326008)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Mar 2023 21:22:22.1565 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: aa5d29bd-42e8-48fe-aaf5-08db21ad8978 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: DM6NAM11FT021.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB8150 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org The i2c-designware-amdpsp driver communicates with a platform features mailbox provided by the PSP. The address used for communication is discovered via a non-architecturally guaranteed mechanism. To better scale, export a feature for communication with platform features directly from the ccp driver. v3->v4 Drop the ACPI ID as result of confirmation with internal team. Future platforms should use doorbell, so will treat Cezanne as quirk and assume doorbell going forward. Mario Limonciello (8): crypto: ccp: Drop TEE support for IRQ handler crypto: ccp: Add a header for multiple drivers to use `__psp_pa` crypto: ccp: Move some PSP mailbox bit definitions into common header crypto: ccp: Add support for an interface for platform features crypto: ccp: Enable platform access interface on client PSP parts i2c: designware: Use PCI PSP driver for communication crypto: ccp: Add support for ringing a platform doorbell i2c: designware: Add doorbell support for Skyrim arch/x86/kvm/svm/sev.c | 1 + drivers/crypto/ccp/Makefile | 3 +- drivers/crypto/ccp/platform-access.c | 232 ++++++++++++++++++++ drivers/crypto/ccp/platform-access.h | 35 +++ drivers/crypto/ccp/psp-dev.c | 32 +-- drivers/crypto/ccp/psp-dev.h | 11 +- drivers/crypto/ccp/sev-dev.c | 16 +- drivers/crypto/ccp/sev-dev.h | 2 +- drivers/crypto/ccp/sp-dev.h | 10 + drivers/crypto/ccp/sp-pci.c | 9 + drivers/crypto/ccp/tee-dev.c | 17 +- drivers/i2c/busses/Kconfig | 2 +- drivers/i2c/busses/i2c-designware-amdpsp.c | 188 ++++------------ drivers/i2c/busses/i2c-designware-core.h | 1 - drivers/i2c/busses/i2c-designware-platdrv.c | 1 - drivers/tee/amdtee/call.c | 2 +- drivers/tee/amdtee/shm_pool.c | 2 +- include/linux/psp-platform-access.h | 65 ++++++ include/linux/psp-sev.h | 8 - include/linux/psp.h | 29 +++ 20 files changed, 461 insertions(+), 205 deletions(-) create mode 100644 drivers/crypto/ccp/platform-access.c create mode 100644 drivers/crypto/ccp/platform-access.h create mode 100644 include/linux/psp-platform-access.h create mode 100644 include/linux/psp.h