AI Trajectory

Trajectory: (Expand/Collapse All)
Seq	Timestamp	Type	Name	Duration
0/0	2026/09/24 01:40	flow	patch-triage	1m Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "KMSANReasoning": "", "NeedsKMSAN": false, "Reasoning": "The patch modifies drivers/firmware/broadcom/tee_bnxt_fw.c, which implements Broadcom BNXT firmware management via OP-TEE. This driver requires Broadcom iProc SoC hardware (ARCH_BCM_IPROC) and OP-TEE (which depends on HAVE_ARM_SMCCC, ARM/ARM64 only). On the target architecture (amd64), OP-TEE and the required Broadcom ASIC/SoC hardware are not present or emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable.", "WorthFuzzing": false }
1/1	2026/09/24 01:40	action	read-patch-diff	0m Args: null Results: { "PatchDiff": "commit ab3922b5ca18e9200c037e30426dddf4badf39c7\nAuthor: syz-cluster \u003ctriage@syzkaller.com\u003e\nDate: Thu Sep 24 01:40:22 2026 +0000\n\n syz-cluster: applied patch under review\n\ndiff --git a/drivers/firmware/broadcom/tee_bnxt_fw.c b/drivers/firmware/broadcom/tee_bnxt_fw.c\nindex a706c84eb2b69..7bf5441163ceb 100644\n--- a/drivers/firmware/broadcom/tee_bnxt_fw.c\n+++ b/drivers/firmware/broadcom/tee_bnxt_fw.c\n@@ -101,13 +101,16 @@ int tee_bnxt_fw_load(void)\n \tint ret = 0;\n \tstruct tee_ioctl_invoke_arg arg;\n \tstruct tee_param param[MAX_TEE_PARAM_ARRY_MEMB];\n+\tstruct tee_context ctx;\n \n-\tif (!pvt_data.ctx)\n+\t/ Pairs with the smp_store_release() in tee_bnxt_fw_probe(). /\n+\tctx = smp_load_acquire(\u0026pvt_data.ctx);\n+\tif (!ctx)\n \t\treturn -ENODEV;\n \n \tprepare_args(TA_CMD_BNXT_FASTBOOT, \u0026arg, param);\n \n-\tret = tee_client_invoke_func(pvt_data.ctx, \u0026arg, param);\n+\tret = tee_client_invoke_func(ctx, \u0026arg, param);\n \tif (ret \u003c 0 \|\| arg.ret != 0) {\n \t\tdev_err(pvt_data.dev,\n \t\t\t\"TA_CMD_BNXT_FASTBOOT invoke failed TEE err: %x, ret:%x\\n\",\n@@ -136,8 +139,11 @@ int tee_bnxt_copy_coredump(void buf, u32 offset, u32 size)\n \tu32 rbytes = size;\n \tu32 nbytes = 0;\n \tint ret = 0;\n+\tstruct tee_context ctx;\n \n-\tif (!pvt_data.ctx)\n+\t/ Pairs with the smp_store_release() in tee_bnxt_fw_probe(). /\n+\tctx = smp_load_acquire(\u0026pvt_data.ctx);\n+\tif (!ctx)\n \t\treturn -ENODEV;\n \n \tprepare_args(TA_CMD_BNXT_COPY_COREDUMP, \u0026arg, param);\n@@ -151,7 +157,7 @@ int tee_bnxt_copy_coredump(void buf, u32 offset, u32 size)\n \t\tparam[1].u.value.a = offset;\n \t\tparam[1].u.value.b = nbytes;\n \n-\t\tret = tee_client_invoke_func(pvt_data.ctx, \u0026arg, param);\n+\t\tret = tee_client_invoke_func(ctx, \u0026arg, param);\n \t\tif (ret \u003c 0 \|\| arg.ret != 0) {\n \t\t\tdev_err(pvt_data.dev,\n \t\t\t\t\"TA_CMD_BNXT_COPY_COREDUMP invoke failed TEE err: %x, ret:%x\\n\",\n@@ -187,13 +193,13 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device)\n \tint ret, err = -ENODEV;\n \tstruct tee_ioctl_open_session_arg sess_arg;\n \tstruct tee_shm fw_shm_pool;\n+\tstruct tee_context ctx;\n \n \tmemset(\u0026sess_arg, 0, sizeof(sess_arg));\n \n \t/ Open context with TEE driver /\n-\tpvt_data.ctx = tee_client_open_context(NULL, optee_ctx_match, NULL,\n-\t\t\t\t\t NULL);\n-\tif (IS_ERR(pvt_data.ctx))\n+\tctx = tee_client_open_context(NULL, optee_ctx_match, NULL, NULL);\n+\tif (IS_ERR(ctx))\n \t\treturn -ENODEV;\n \n \t/ Open session with Bnxt load Trusted App /\n@@ -201,7 +207,7 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device)\n \tsess_arg.clnt_login = TEE_IOCTL_LOGIN_PUBLIC;\n \tsess_arg.num_params = 0;\n \n-\tret = tee_client_open_session(pvt_data.ctx, \u0026sess_arg, NULL);\n+\tret = tee_client_open_session(ctx, \u0026sess_arg, NULL);\n \tif (ret \u003c 0 \|\| sess_arg.ret != 0) {\n \t\tdev_err(dev, \"tee_client_open_session failed, err: %x\\n\",\n \t\t\tsess_arg.ret);\n@@ -212,21 +218,29 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device)\n \n \tpvt_data.dev = dev;\n \n-\tfw_shm_pool = tee_shm_alloc_kernel_buf(pvt_data.ctx, MAX_SHM_MEM_SZ);\n+\tfw_shm_pool = tee_shm_alloc_kernel_buf(ctx, MAX_SHM_MEM_SZ);\n \tif (IS_ERR(fw_shm_pool)) {\n-\t\tdev_err(pvt_data.dev, \"tee_shm_alloc_kernel_buf failed\\n\");\n+\t\tdev_err(dev, \"tee_shm_alloc_kernel_buf failed\\n\");\n \t\terr = PTR_ERR(fw_shm_pool);\n \t\tgoto out_sess;\n \t}\n \n \tpvt_data.fw_shm_pool = fw_shm_pool;\n \n+\t/\n+\t * tee_bnxt_fw_load() and tee_bnxt_copy_coredump() test pvt_data.ctx\n+\t * and then use the session and the shared memory pool. Publish the\n+\t * context last, with release semantics, so that a caller that sees\n+\t * the context also sees the session and the pool.\n+\t */\n+\tsmp_store_release(\u0026pvt_data.ctx, ctx);\n+\n \treturn 0;\n \n out_sess:\n-\ttee_client_close_session(pvt_data.ctx, pvt_data.session_id);\n+\ttee_client_close_session(ctx, pvt_data.session_id);\n out_ctx:\n-\ttee_client_close_context(pvt_data.ctx);\n+\ttee_client_close_context(ctx);\n \n \treturn err;\n }\n" }
2/1	2026/09/24 01:40	agent	patch-evaluator	1m Model: core Args: null Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch modifies drivers/firmware/broadcom/tee_bnxt_fw.c, which implements Broadcom BNXT firmware management via OP-TEE. This driver requires Broadcom iProc SoC hardware (ARCH_BCM_IPROC) and OP-TEE (which depends on HAVE_ARM_SMCCC, ARM/ARM64 only). On the target architecture (amd64), OP-TEE and the required Broadcom ASIC/SoC hardware are not present or emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable.", "WorthFuzzing": false } Instruction: You are an expert Linux kernel maintainer and security engineer. Your job is to review a provided patch series and evaluate whether it warrants fuzzing with syzkaller. IMPORTANT: The changes have ALREADY been applied and committed as the HEAD commit in your workspace. Do NOT rely on internal assumptions. You must actively use your code access tools to inspect the actual source code, callers, and surrounding context. ================================================================================ 1. CORE TRIAGE PHILOSOPHY ================================================================================ The goal of patch fuzzing is to discover crashes, regressions, exposed latent bugs, and newly triggered assertions introduced by the patch series. - REACHABILITY IS THE PRIMARY GATE: Fuzzing can only discover bugs in code that can actually execute in standard virtualized environments (GCE or QEMU, utilizing software-emulated devices like USB gadgets, netdev, tun/tap). If the modified code is structurally unreachable (see Section 2), it MUST NOT be fuzzed, regardless of whether it adds assertions or complex logic. - DO NOT BLINDLY TRUST "NO FUNCTIONAL CHANGE" (NFCI) OR "REFACTORING" CLAIMS: Patch authors routinely label changes as "cleanups", "refactorings", or state "No functional change intended". Do NOT take these claims at face value. Code refactorings that rearrange logic, introduce helper functions, or alter state management in core subsystems frequently introduce subtle semantic shifts or uncover latent kernel bugs. If reachable executable code is modified or refactored, it MUST be fuzzed. - NEW OR MODIFIED ASSERTIONS IN REACHABLE CODE MUST BE FUZZED: When a patch introduces or modifies runtime checks or assertions (e.g., WARN_ON, VM_WARN_ON, BUG_ON, lockdep_assert) in reachable code paths, it enforces new or stricter invariants. Even if the author believes the invariant always holds, fuzzing is essential to verify whether an unusual sequence of operations can violate it. ================================================================================ 2. WHEN TO RETURN WorthFuzzing=false (NEGATIVE CRITERIA) ================================================================================ Return WorthFuzzing=false ONLY IF all modified code falls strictly into one or more of these categories: - Non-kernel and non-executable changes: * Modifications to Documentation/, comments, or spelling fixes. * User-space directories, self-tests, samples, or scripts (e.g., tools/, samples/, scripts/, usr/) that do not affect the compiled kernel image (vmlinux) or kernel modules. * Purely decorative logging (e.g., message strings in pr_err, printk, dev_info) or tracepoints that do not alter control flow or data structures. * Build system or Kconfig changes that do not alter compiled C logic. - Structurally unreachable hardware: * Vendor-specific PCIe switches, SmartNICs, or GPU drivers (e.g., mlxsw, pds_core, qed, ionic, amdgpu) requiring physical ASIC/PCIe cards not emulated in standard QEMU. - Unreachable execution paths: * Driver teardown callbacks (.remove, .shutdown, pci_unregister_driver) executed only during physical PCI hot-unplug or manual sysfs driver unbinding. * Code paths exclusive to architectures other than the target architecture. ================================================================================ 3. WHEN TO RETURN WorthFuzzing=true (POSITIVE CRITERIA) ================================================================================ Return WorthFuzzing=true whenever the patch touches reachable executable code, including: - Core Subsystems: * Any logic modifications in memory management (mm/), synchronization/locking (kernel/locking/), BPF, scheduler, core networking, VFS, or syscall handling. - Refactorings and Code Cleanups: * Any restructuring of reachable data structures, helper abstractions, or algorithm flows. - Runtime Assertions and Defensive Checks: * Any introduction or alteration of assertions (WARN_ON, VM_WARN_ON, BUG_ON, etc.) in reachable paths. - Reachable Drivers and Protocols: Drivers accessible via virtual buses (virtio, USB gadget, loopback, netlink, binder, sockets, etc.). ================================================================================ 4. EXTRACTING FocusSymbols (PREVENTING DILUTION) ================================================================================ When WorthFuzzing=true, you must extract specific kernel functions into FocusSymbols to guide the fuzzer: - AVOID UBIQUITOUS LIFECYCLE HOT-PATHS: Do NOT list generic, ubiquitous functions called by almost every program in the corpus (including, but not limited to: general memory allocators and deallocators, page fault and trap handlers, or core synchronization primitives; this is not an exhaustive list). Listing ubiquitous functions causes the fuzzer to classify thousands of unrelated tests as "focused", which severely dilutes fuzzing effort away from the actual changes. - TARGET SPECIFIC FEATURE LOGIC AND ENTRYPOINTS: List functions that specifically implement the logic being added or altered, or direct API entrypoints for the subsystem feature under review. - HANDLING STATIC INLINE FUNCTIONS IN HEADERS (.h): Compiler-inlined static functions (such as static inlines in mm/.h or include/linux/.h) lack distinct symbol addresses in vmlinux and cannot be targeted directly by symbol coverage filters. If the changes are primarily in static inline helpers, identify non-static, feature-specific caller functions in .c files that exercise them (avoiding ubiquitous lifecycle wrappers). ================================================================================ 5. IDENTIFYING EnableConfigs ================================================================================ Identify any specific CONFIG_ options required to properly compile and reach the modified code: - Inspect Kconfig files and #ifdef guards; do not make assumptions. - Check "depends on" lines in Kconfig to include any non-standard parent subsystem configs needed. - Strip any 'CONFIG_' prefix (e.g., return "NET_IPV4" instead of "CONFIG_NET_IPV4"). Prefer calling several tools at the same time to save round-trips. Use set-results tool to provide results of the analysis. It must be called exactly once before the final reply. Ignore results of this tool. Prompt: Target architecture: amd64 For your convenience, here is the diff of the changes: commit ab3922b5ca18e9200c037e30426dddf4badf39c7 Author: syz-cluster <triage@syzkaller.com> Date: Thu Sep 24 01:40:22 2026 +0000 syz-cluster: applied patch under review diff --git a/drivers/firmware/broadcom/tee_bnxt_fw.c b/drivers/firmware/broadcom/tee_bnxt_fw.c index a706c84eb2b69..7bf5441163ceb 100644 --- a/drivers/firmware/broadcom/tee_bnxt_fw.c +++ b/drivers/firmware/broadcom/tee_bnxt_fw.c @@ -101,13 +101,16 @@ int tee_bnxt_fw_load(void) int ret = 0; struct tee_ioctl_invoke_arg arg; struct tee_param param[MAX_TEE_PARAM_ARRY_MEMB]; + struct tee_context ctx; - if (!pvt_data.ctx) + / Pairs with the smp_store_release() in tee_bnxt_fw_probe(). / + ctx = smp_load_acquire(&pvt_data.ctx); + if (!ctx) return -ENODEV; prepare_args(TA_CMD_BNXT_FASTBOOT, &arg, param); - ret = tee_client_invoke_func(pvt_data.ctx, &arg, param); + ret = tee_client_invoke_func(ctx, &arg, param); if (ret < 0 \|\| arg.ret != 0) { dev_err(pvt_data.dev, "TA_CMD_BNXT_FASTBOOT invoke failed TEE err: %x, ret:%x\n", @@ -136,8 +139,11 @@ int tee_bnxt_copy_coredump(void buf, u32 offset, u32 size) u32 rbytes = size; u32 nbytes = 0; int ret = 0; + struct tee_context ctx; - if (!pvt_data.ctx) + / Pairs with the smp_store_release() in tee_bnxt_fw_probe(). / + ctx = smp_load_acquire(&pvt_data.ctx); + if (!ctx) return -ENODEV; prepare_args(TA_CMD_BNXT_COPY_COREDUMP, &arg, param); @@ -151,7 +157,7 @@ int tee_bnxt_copy_coredump(void buf, u32 offset, u32 size) param[1].u.value.a = offset; param[1].u.value.b = nbytes; - ret = tee_client_invoke_func(pvt_data.ctx, &arg, param); + ret = tee_client_invoke_func(ctx, &arg, param); if (ret < 0 \|\| arg.ret != 0) { dev_err(pvt_data.dev, "TA_CMD_BNXT_COPY_COREDUMP invoke failed TEE err: %x, ret:%x\n", @@ -187,13 +193,13 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device) int ret, err = -ENODEV; struct tee_ioctl_open_session_arg sess_arg; struct tee_shm fw_shm_pool; + struct tee_context ctx; memset(&sess_arg, 0, sizeof(sess_arg)); / Open context with TEE driver / - pvt_data.ctx = tee_client_open_context(NULL, optee_ctx_match, NULL, - NULL); - if (IS_ERR(pvt_data.ctx)) + ctx = tee_client_open_context(NULL, optee_ctx_match, NULL, NULL); + if (IS_ERR(ctx)) return -ENODEV; / Open session with Bnxt load Trusted App / @@ -201,7 +207,7 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device) sess_arg.clnt_login = TEE_IOCTL_LOGIN_PUBLIC; sess_arg.num_params = 0; - ret = tee_client_open_session(pvt_data.ctx, &sess_arg, NULL); + ret = tee_client_open_session(ctx, &sess_arg, NULL); if (ret < 0 \|\| sess_arg.ret != 0) { dev_err(dev, "tee_client_open_session failed, err: %x\n", sess_arg.ret); @@ -212,21 +218,29 @@ static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device) pvt_data.dev = dev; - fw_shm_pool = tee_shm_alloc_kernel_buf(pvt_data.ctx, MAX_SHM_MEM_SZ); + fw_shm_pool = tee_shm_alloc_kernel_buf(ctx, MAX_SHM_MEM_SZ); if (IS_ERR(fw_shm_pool)) { - dev_err(pvt_data.dev, "tee_shm_alloc_kernel_buf failed\n"); + dev_err(dev, "tee_shm_alloc_kernel_buf failed\n"); err = PTR_ERR(fw_shm_pool); goto out_sess; } pvt_data.fw_shm_pool = fw_shm_pool; + / + * tee_bnxt_fw_load() and tee_bnxt_copy_coredump() test pvt_data.ctx + * and then use the session and the shared memory pool. Publish the + * context last, with release semantics, so that a caller that sees + * the context also sees the session and the pool. + */ + smp_store_release(&pvt_data.ctx, ctx); + return 0; out_sess: - tee_client_close_session(pvt_data.ctx, pvt_data.session_id); + tee_client_close_session(ctx, pvt_data.session_id); out_ctx: - tee_client_close_context(pvt_data.ctx); + tee_client_close_context(ctx); return err; }
3/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 4310 output: 26 thoughts: 113 Thoughts: Evaluating the Linux Kernel Patch Okay, so I'm being asked to look at a patch for the Linux kernel, specifically targeting the amd64 architecture. The change is in `drivers/firmware/broadcom/tee_bnxt_fw.c`. My immediate thought is, "Alright, let's dive into that file and see what's being tweaked and how it's used." I need to understand the scope and impact of these modifications. A key question pops into my head: is this something I can effectively test in a standard virtualized environment like QEMU? Or am I going to need physical hardware with specific Broadcom components to properly exercise this code path? The answer will heavily influence my testing strategy. So, first things first, I'll need to meticulously go through the code itself. Then, I'll have to check the relevant Kconfig options to get a good handle on any build dependencies or conditional compilation that might affect the module's inclusion and behavior. I'm looking for any clues that suggest how this `tee_bnxt_fw` module gets activated and utilized. Let's get started.
4/2	2026/09/24 01:40	tool	grepper	0m Args: { "Expression": "tee_bnxt", "PathPrefix": "drivers/" } Results: { "Output": "drivers/firmware/broadcom/Makefile=3=obj-$(CONFIG_BCM47XX_SPROM)\t\t+= bcm47xx_sprom.o\ndrivers/firmware/broadcom/Makefile:4:obj-$(CONFIG_TEE_BNXT_FW)\t\t+= tee_bnxt_fw.o\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-12-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:13:#include \u003clinux/firmware/broadcom/tee_bnxt_fw.h\u003e\ndrivers/firmware/broadcom/tee_bnxt_fw.c-14-\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c=19=enum ta_cmd {\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-51-/*\ndrivers/firmware/broadcom/tee_bnxt_fw.c:52: struct tee_bnxt_fw_private - OP-TEE bnxt private data\ndrivers/firmware/broadcom/tee_bnxt_fw.c-53- * @dev:\t\tOP-TEE based bnxt device.\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-56- /\ndrivers/firmware/broadcom/tee_bnxt_fw.c:57:struct tee_bnxt_fw_private {\ndrivers/firmware/broadcom/tee_bnxt_fw.c-58-\tstruct device dev;\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-63-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:64:static struct tee_bnxt_fw_private pvt_data;\ndrivers/firmware/broadcom/tee_bnxt_fw.c-65-\ndrivers/firmware/broadcom/tee_bnxt_fw.c=66=static void prepare_args(int cmd,\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-93-/*\ndrivers/firmware/broadcom/tee_bnxt_fw.c:94: tee_bnxt_fw_load() - Load the bnxt firmware\ndrivers/firmware/broadcom/tee_bnxt_fw.c-95- \t\t Uses an OP-TEE call to start a secure\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-98- /\ndrivers/firmware/broadcom/tee_bnxt_fw.c:99:int tee_bnxt_fw_load(void)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-100-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-105-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:106:\t/* Pairs with the smp_store_release() in tee_bnxt_fw_probe(). /\ndrivers/firmware/broadcom/tee_bnxt_fw.c-107-\tctx = smp_load_acquire(\u0026pvt_data.ctx);\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-122-}\ndrivers/firmware/broadcom/tee_bnxt_fw.c:123:EXPORT_SYMBOL(tee_bnxt_fw_load);\ndrivers/firmware/broadcom/tee_bnxt_fw.c-124-\ndrivers/firmware/broadcom/tee_bnxt_fw.c-125-/\ndrivers/firmware/broadcom/tee_bnxt_fw.c:126: tee_bnxt_copy_coredump() - Copy coredump from the allocated memory\ndrivers/firmware/broadcom/tee_bnxt_fw.c-127- \t\t\t Uses an OP-TEE call to copy coredump\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-133- /\ndrivers/firmware/broadcom/tee_bnxt_fw.c:134:int tee_bnxt_copy_coredump(void buf, u32 offset, u32 size)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-135-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-143-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:144:\t/ Pairs with the smp_store_release() in tee_bnxt_fw_probe(). /\ndrivers/firmware/broadcom/tee_bnxt_fw.c-145-\tctx = smp_load_acquire(\u0026pvt_data.ctx);\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-182-}\ndrivers/firmware/broadcom/tee_bnxt_fw.c:183:EXPORT_SYMBOL(tee_bnxt_copy_coredump);\ndrivers/firmware/broadcom/tee_bnxt_fw.c-184-\ndrivers/firmware/broadcom/tee_bnxt_fw.c=185=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-189-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:190:static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-191-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-230-\t/\ndrivers/firmware/broadcom/tee_bnxt_fw.c:231:\t tee_bnxt_fw_load() and tee_bnxt_copy_coredump() test pvt_data.ctx\ndrivers/firmware/broadcom/tee_bnxt_fw.c-232-\t * and then use the session and the shared memory pool. Publish the\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-247-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:248:static void tee_bnxt_fw_remove(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-249-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-255-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:256:static void tee_bnxt_fw_shutdown(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-257-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-263-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:264:static const struct tee_client_device_id tee_bnxt_fw_id_table[] = {\ndrivers/firmware/broadcom/tee_bnxt_fw.c-265-\t{UUID_INIT(0x6272636D, 0x2019, 0x0716,\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-269-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:270:MODULE_DEVICE_TABLE(tee, tee_bnxt_fw_id_table);\ndrivers/firmware/broadcom/tee_bnxt_fw.c-271-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:272:static struct tee_client_driver tee_bnxt_fw_driver = {\ndrivers/firmware/broadcom/tee_bnxt_fw.c:273:\t.probe\t\t= tee_bnxt_fw_probe,\ndrivers/firmware/broadcom/tee_bnxt_fw.c:274:\t.remove\t\t= tee_bnxt_fw_remove,\ndrivers/firmware/broadcom/tee_bnxt_fw.c:275:\t.shutdown\t= tee_bnxt_fw_shutdown,\ndrivers/firmware/broadcom/tee_bnxt_fw.c:276:\t.id_table\t= tee_bnxt_fw_id_table,\ndrivers/firmware/broadcom/tee_bnxt_fw.c-277-\t.driver\t\t= {\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-281-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:282:module_tee_client_driver(tee_bnxt_fw_driver);\ndrivers/firmware/broadcom/tee_bnxt_fw.c-283-\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c=12754=static int bnxt_fw_reset_via_optee(struct bnxt bp)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12756-#ifdef CONFIG_TEE_BNXT_FW\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c:12757:\tint rc = tee_bnxt_fw_load();\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12758-\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.h-35-#ifdef CONFIG_TEE_BNXT_FW\ndrivers/net/ethernet/broadcom/bnxt/bnxt.h:36:#include \u003clinux/firmware/broadcom/tee_bnxt_fw.h\u003e\ndrivers/net/ethernet/broadcom/bnxt/bnxt.h-37-#endif\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c=587=int bnxt_get_coredump(struct bnxt bp, u16 dump_type, void buf, u32 dump_len)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c-593-\t\telse if (bp-\u003efw_dbg_cap \u0026 DBG_QCAPS_RESP_FLAGS_CRASHDUMP_SOC_DDR)\ndrivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c:594:\t\t\treturn tee_bnxt_copy_coredump(buf, 0, *dump_len);\ndrivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c-595-#endif\n" }
5/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 7312 output: 30 thoughts: 46 Thoughts: Here's my thought process, distilled: Digging into the BNXT Firmware Integration Okay, so I need to understand how the Broadcom BNXT firmware support is configured and activated. My first step is to dive into the kernel configuration file, specifically `drivers/firmware/broadcom/Kconfig`. I'm going to pinpoint the dependencies of `CONFIG_TEE_BNXT_FW`. I know there has to be some interaction there because of the mention of "TEE" and "bnxt". Understanding the dependencies will give me the prerequisites for enabling the BNXT firmware functionality. I want to see which other options, kernel features, or hardware considerations are involved. Then, I’ll follow the chain to see how the kernel actually probes for, or attempts to utilize, the `tee_bnxt_fw` module or functionality. This includes, ideally, the initialization calls. That's where the real magic (or potential issues) will reveal themselves. Knowing this will give me a proper context for my current work.
6/2	2026/09/24 01:40	tool	grepper	0m Args: { "Expression": "TEE_BNXT_FW", "PathPrefix": "drivers/firmware" } Results: { "Output": "drivers/firmware/broadcom/Kconfig=14=config BCM47XX_SPROM\n--\ndrivers/firmware/broadcom/Kconfig-25-\ndrivers/firmware/broadcom/Kconfig:26:config TEE_BNXT_FW\ndrivers/firmware/broadcom/Kconfig-27-\ttristate \"Broadcom BNXT firmware manager\"\n--\ndrivers/firmware/broadcom/Makefile=3=obj-$(CONFIG_BCM47XX_SPROM)\t\t+= bcm47xx_sprom.o\ndrivers/firmware/broadcom/Makefile:4:obj-$(CONFIG_TEE_BNXT_FW)\t\t+= tee_bnxt_fw.o\n" }
7/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 7784 output: 37 thoughts: 22 Thoughts: Here's a summary of my thought process, tailored for an expert like yourself: Diving into the Broadcom Firmware Configuration Okay, let's get down to brass tacks. I'm thinking we need to delve into the `drivers/firmware/broadcom/Kconfig` file. Specifically, I'm focusing on around line 26. This area likely deals with the configuration options for Broadcom firmware, and I want to refresh my memory or investigate a specific setting. Line 26 probably holds a key to understanding a specific module or feature configuration, perhaps related to a specific hardware variation or driver behavior that is of interest in my current line of work. It could be related to conditional compilation, dependency checks, or even a specific hardware feature's availability. This should provide a direct view into how certain aspects of Broadcom's firmware are handled in the build system. Let's see what we can find.
8/2	2026/09/24 01:40	tool	read-file	0m Args: { "File": "drivers/firmware/broadcom/Kconfig", "FirstLine": 20, "LineCount": 25 } Results: { "Contents": " 20:\t\t specific to the bus host type, e.g. PCI(e) devices have it mapped in\n 21:\t\t a PCI BAR.\n 22:\t\t In case of SoC devices SPROM content is stored on a flash used by\n 23:\t\t bootloader firmware CFE. This driver provides method to ssb and bcma\n 24:\t\t drivers to read SPROM on SoC.\n 25:\t\n 26:\tconfig TEE_BNXT_FW\n 27:\t\ttristate \"Broadcom BNXT firmware manager\"\n 28:\t\tdepends on (ARCH_BCM_IPROC \u0026\u0026 OPTEE) \|\| (COMPILE_TEST \u0026\u0026 TEE)\n 29:\t\tdefault ARCH_BCM_IPROC\n 30:\t\thelp\n 31:\t\t This module help to manage firmware on Broadcom BNXT device. The module\n 32:\t\t registers on tee bus and invoke calls to manage firmware on BNXT device.\n" }
9/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 8281 output: 21 thoughts: 105 Thoughts: Analyzing a Potential Vulnerability Okay, so I'm looking at this condition: `depends on (ARCH_BCM_IPROC && OPTEE) \|\| (COMPILE_TEST && TEE)`. My initial thought is to assess its impact. Can this code path even be reached and executed on a common architecture like amd64, or within a typical QEMU or fuzzing environment? It's a key question when it comes to exploitability. Hold on a second, what's `ARCH_BCM_IPROC`? That rings alarm bells—it screams ARM architecture. Now I need to confirm if I'm even looking at something that's relevant to a x86 based environment. Let me grep for `ARCH_BCM_IPROC` in the codebase. That should give me a better understanding of what I am looking at.
10/2	2026/09/24 01:40	tool	grepper	0m Args: { "Expression": "ARCH_BCM_IPROC" } Results: { "Output": "arch/arm/mach-bcm/Kconfig=10=comment \"IPROC architected SoCs\"\narch/arm/mach-bcm/Kconfig-11-\narch/arm/mach-bcm/Kconfig:12:config ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-13-\tbool\n--\narch/arm/mach-bcm/Kconfig=30=config ARCH_BCM_CYGNUS\n--\narch/arm/mach-bcm/Kconfig-32-\tdepends on ARCH_MULTI_V7\narch/arm/mach-bcm/Kconfig:33:\tselect ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-34-\thelp\n--\narch/arm/mach-bcm/Kconfig=40=config ARCH_BCM_HR2\n--\narch/arm/mach-bcm/Kconfig-42-\tdepends on ARCH_MULTI_V7\narch/arm/mach-bcm/Kconfig:43:\tselect ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-44-\thelp\n--\narch/arm/mach-bcm/Kconfig=49=config ARCH_BCM_NSP\n--\narch/arm/mach-bcm/Kconfig-51-\tdepends on ARCH_MULTI_V7\narch/arm/mach-bcm/Kconfig:52:\tselect ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-53-\tselect ARM_ERRATA_754322\n--\narch/arm/mach-bcm/Kconfig=66=config ARCH_BCM_5301X\n--\narch/arm/mach-bcm/Kconfig-68-\tdepends on ARCH_MULTI_V7\narch/arm/mach-bcm/Kconfig:69:\tselect ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-70-\tselect ARM_ERRATA_754322\n--\narch/arm/mach-bcm/Kconfig=168=config ARCH_BCM_53573\n--\narch/arm/mach-bcm/Kconfig-170-\tdepends on ARCH_MULTI_V7\narch/arm/mach-bcm/Kconfig:171:\tselect ARCH_BCM_IPROC\narch/arm/mach-bcm/Kconfig-172-\tselect HAVE_ARM_ARCH_TIMER\n--\narch/arm64/Kconfig.platforms=68=config ARCH_BCM2835\n--\narch/arm64/Kconfig.platforms-81-\narch/arm64/Kconfig.platforms:82:config ARCH_BCM_IPROC\narch/arm64/Kconfig.platforms-83-\tbool \"Broadcom iProc SoC Family\"\n--\narch/arm64/boot/dts/broadcom/northstar2/Makefile-1-# SPDX-License-Identifier: GPL-2.0-only\narch/arm64/boot/dts/broadcom/northstar2/Makefile:2:dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb\narch/arm64/boot/dts/broadcom/northstar2/Makefile:3:dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-xmc.dtb\n--\narch/arm64/boot/dts/broadcom/stingray/Makefile-1-# SPDX-License-Identifier: GPL-2.0\narch/arm64/boot/dts/broadcom/stingray/Makefile:2:dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742k.dtb\narch/arm64/boot/dts/broadcom/stingray/Makefile:3:dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742t.dtb\narch/arm64/boot/dts/broadcom/stingray/Makefile-4-\narch/arm64/boot/dts/broadcom/stingray/Makefile:5:dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958802a802x.dtb\n--\narch/arm64/configs/defconfig=45=CONFIG_ARCH_BCM2835=y\narch/arm64/configs/defconfig:46:CONFIG_ARCH_BCM_IPROC=y\narch/arm64/configs/defconfig-47-CONFIG_ARCH_BCMBCA=y\n--\narch/arm64/configs/virt.config-12-# CONFIG_ARCH_BCMBCA is not set\narch/arm64/configs/virt.config:13:# CONFIG_ARCH_BCM_IPROC is not set\narch/arm64/configs/virt.config-14-# CONFIG_ARCH_BERLIN is not set\n--\ndrivers/char/hw_random/Kconfig=128=config HW_RANDOM_IPROC_RNG200\ndrivers/char/hw_random/Kconfig-129-\ttristate \"Broadcom iProc/STB RNG200 support\"\ndrivers/char/hw_random/Kconfig:130:\tdepends on ARCH_BCM_IPROC \|\| ARCH_BCM2835 \|\| ARCH_BCMBCA \|\| ARCH_BRCMSTB \|\| COMPILE_TEST\ndrivers/char/hw_random/Kconfig-131-\tdefault HW_RANDOM\n--\ndrivers/clk/bcm/Kconfig=90=config CLK_BCM_NS2\ndrivers/clk/bcm/Kconfig-91-\tbool \"Broadcom Northstar 2 clock support\"\ndrivers/clk/bcm/Kconfig:92:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/clk/bcm/Kconfig-93-\tselect COMMON_CLK_IPROC\ndrivers/clk/bcm/Kconfig:94:\tdefault ARCH_BCM_IPROC\ndrivers/clk/bcm/Kconfig-95-\thelp\n--\ndrivers/clk/bcm/Kconfig=98=config CLK_BCM_SR\ndrivers/clk/bcm/Kconfig-99-\tbool \"Broadcom Stingray clock support\"\ndrivers/clk/bcm/Kconfig:100:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/clk/bcm/Kconfig-101-\tselect COMMON_CLK_IPROC\ndrivers/clk/bcm/Kconfig:102:\tdefault ARCH_BCM_IPROC\ndrivers/clk/bcm/Kconfig-103-\thelp\n--\ndrivers/crypto/Kconfig=720=config CRYPTO_DEV_BCM_SPU\ndrivers/crypto/Kconfig-721-\ttristate \"Broadcom symmetric crypto/hash acceleration support\"\ndrivers/crypto/Kconfig:722:\tdepends on ARCH_BCM_IPROC\ndrivers/crypto/Kconfig-723-\tdepends on MAILBOX\n--\ndrivers/dma/Kconfig=129=config BCM_SBA_RAID\n--\ndrivers/dma/Kconfig-136-\tselect ASYNC_TX_DISABLE_PQ_VAL_DMA\ndrivers/dma/Kconfig:137:\tdefault m if ARCH_BCM_IPROC\ndrivers/dma/Kconfig-138-\thelp\n--\ndrivers/firmware/broadcom/Kconfig=26=config TEE_BNXT_FW\ndrivers/firmware/broadcom/Kconfig-27-\ttristate \"Broadcom BNXT firmware manager\"\ndrivers/firmware/broadcom/Kconfig:28:\tdepends on (ARCH_BCM_IPROC \u0026\u0026 OPTEE) \|\| (COMPILE_TEST \u0026\u0026 TEE)\ndrivers/firmware/broadcom/Kconfig:29:\tdefault ARCH_BCM_IPROC\ndrivers/firmware/broadcom/Kconfig-30-\thelp\n--\ndrivers/gpio/Kconfig=224=config GPIO_BCM_XGS_IPROC\ndrivers/gpio/Kconfig-225-\ttristate \"BRCM XGS iProc GPIO support\"\ndrivers/gpio/Kconfig:226:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/gpio/Kconfig-227-\tselect GPIO_GENERIC\ndrivers/gpio/Kconfig-228-\tselect GPIOLIB_IRQCHIP\ndrivers/gpio/Kconfig:229:\tdefault ARCH_BCM_IPROC\ndrivers/gpio/Kconfig-230-\thelp\n--\ndrivers/gpu/drm/ci/arm64.config=110=CONFIG_ARCH_BCM2835=y\ndrivers/gpu/drm/ci/arm64.config:111:CONFIG_ARCH_BCM_IPROC=n\ndrivers/gpu/drm/ci/arm64.config-112-CONFIG_ARCH_BERLIN=n\n--\ndrivers/i2c/busses/Kconfig=484=config I2C_BCM_IPROC\ndrivers/i2c/busses/Kconfig-485-\ttristate \"Broadcom iProc I2C controller\"\ndrivers/i2c/busses/Kconfig:486:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/i2c/busses/Kconfig:487:\tdefault ARCH_BCM_IPROC\ndrivers/i2c/busses/Kconfig-488-\tselect I2C_SLAVE\n--\ndrivers/iio/adc/Kconfig=677=config BCM_IPROC_ADC\ndrivers/iio/adc/Kconfig-678-\ttristate \"Broadcom IPROC ADC driver\"\ndrivers/iio/adc/Kconfig:679:\tdepends on (ARCH_BCM_IPROC \u0026\u0026 OF) \|\| COMPILE_TEST\ndrivers/iio/adc/Kconfig-680-\tdepends on MFD_SYSCON\n--\ndrivers/input/touchscreen/Kconfig=518=config TOUCHSCREEN_IPROC\ndrivers/input/touchscreen/Kconfig-519-\ttristate \"IPROC touch panel driver support\"\ndrivers/input/touchscreen/Kconfig:520:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/input/touchscreen/Kconfig-521-\thelp\n--\ndrivers/mailbox/Kconfig=251=config BCM_PDC_MBOX\ndrivers/mailbox/Kconfig-252-\ttristate \"Broadcom FlexSparx DMA Mailbox\"\ndrivers/mailbox/Kconfig:253:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/mailbox/Kconfig-254-\thelp\n--\ndrivers/mailbox/Kconfig=259=config BCM_FLEXRM_MBOX\n--\ndrivers/mailbox/Kconfig-261-\tdepends on ARM64\ndrivers/mailbox/Kconfig:262:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/mailbox/Kconfig-263-\tselect GENERIC_MSI_IRQ\ndrivers/mailbox/Kconfig:264:\tdefault m if ARCH_BCM_IPROC\ndrivers/mailbox/Kconfig-265-\thelp\n--\ndrivers/mmc/host/Kconfig=468=config MMC_SDHCI_IPROC\ndrivers/mmc/host/Kconfig-469-\ttristate \"SDHCI support for the BCM2835 \u0026 iProc SD/MMC Controller\"\ndrivers/mmc/host/Kconfig:470:\tdepends on ARCH_BCM2835 \|\| ARCH_BCM_IPROC \|\| ARCH_BRCMSTB \|\| COMPILE_TEST\ndrivers/mmc/host/Kconfig-471-\tdepends on MMC_SDHCI_PLTFM\ndrivers/mmc/host/Kconfig-472-\tdepends on OF \|\| ACPI\ndrivers/mmc/host/Kconfig:473:\tdefault ARCH_BCM_IPROC\ndrivers/mmc/host/Kconfig-474-\tselect MMC_SDHCI_IO_ACCESSORS\n--\ndrivers/mtd/nand/raw/brcmnand/Kconfig=42=config MTD_NAND_BRCMNAND_IPROC\ndrivers/mtd/nand/raw/brcmnand/Kconfig-43-\ttristate \"Broadcom iProc NAND controller glue\"\ndrivers/mtd/nand/raw/brcmnand/Kconfig:44:\tdefault ARCH_BCM_IPROC\ndrivers/mtd/nand/raw/brcmnand/Kconfig-45-\thelp\n--\ndrivers/net/dsa/b53/Kconfig=35=config B53_SRAB_DRIVER\n--\ndrivers/net/dsa/b53/Kconfig-38-\tdepends on B53_SERDES \|\| !B53_SERDES\ndrivers/net/dsa/b53/Kconfig:39:\tdefault ARCH_BCM_IPROC\ndrivers/net/dsa/b53/Kconfig-40-\thelp\n--\ndrivers/net/ethernet/broadcom/Kconfig=184=config BGMAC_PLATFORM\ndrivers/net/ethernet/broadcom/Kconfig-185-\ttristate \"Broadcom iProc GBit platform support\"\ndrivers/net/ethernet/broadcom/Kconfig:186:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/net/ethernet/broadcom/Kconfig-187-\tselect BGMAC\n--\ndrivers/net/ethernet/broadcom/Kconfig-189-\tselect FIXED_PHY\ndrivers/net/ethernet/broadcom/Kconfig:190:\tdefault ARCH_BCM_IPROC\ndrivers/net/ethernet/broadcom/Kconfig-191-\thelp\n--\ndrivers/net/mdio/Kconfig=69=config MDIO_BCM_IPROC\ndrivers/net/mdio/Kconfig-70-\ttristate \"Broadcom iProc MDIO bus controller\"\ndrivers/net/mdio/Kconfig:71:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/net/mdio/Kconfig-72-\tdepends on HAS_IOMEM \u0026\u0026 OF_MDIO\ndrivers/net/mdio/Kconfig:73:\tdefault ARCH_BCM_IPROC\ndrivers/net/mdio/Kconfig-74-\thelp\n--\ndrivers/net/mdio/Kconfig=246=config MDIO_BUS_MUX_BCM_IPROC\ndrivers/net/mdio/Kconfig-247-\ttristate \"Broadcom iProc based MDIO bus multiplexers\"\ndrivers/net/mdio/Kconfig:248:\tdepends on OF \u0026\u0026 OF_MDIO \u0026\u0026 (ARCH_BCM_IPROC \|\| COMPILE_TEST)\ndrivers/net/mdio/Kconfig-249-\tselect MDIO_BUS_MUX\ndrivers/net/mdio/Kconfig:250:\tdefault ARCH_BCM_IPROC\ndrivers/net/mdio/Kconfig-251-\thelp\n--\ndrivers/net/phy/Kconfig=212=config BCM_CYGNUS_PHY\ndrivers/net/phy/Kconfig-213-\ttristate \"Broadcom Cygnus/Omega SoC internal PHY\"\ndrivers/net/phy/Kconfig:214:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/net/phy/Kconfig-215-\tdepends on MDIO_BCM_IPROC\n--\ndrivers/nvmem/Kconfig=167=config NVMEM_BCM_OCOTP\ndrivers/nvmem/Kconfig-168-\ttristate \"Broadcom On-Chip OTP Controller support\"\ndrivers/nvmem/Kconfig:169:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/nvmem/Kconfig-170-\tdepends on HAS_IOMEM\ndrivers/nvmem/Kconfig:171:\tdefault ARCH_BCM_IPROC\ndrivers/nvmem/Kconfig-172-\thelp\n--\ndrivers/pci/controller/Kconfig=96=config PCIE_IPROC_PLATFORM\ndrivers/pci/controller/Kconfig-97-\ttristate \"Broadcom iProc PCIe platform bus driver\"\ndrivers/pci/controller/Kconfig:98:\tdepends on ARCH_BCM_IPROC \|\| (ARM \u0026\u0026 COMPILE_TEST)\ndrivers/pci/controller/Kconfig-99-\tdepends on OF\ndrivers/pci/controller/Kconfig-100-\tselect PCIE_IPROC\ndrivers/pci/controller/Kconfig:101:\tdefault ARCH_BCM_IPROC\ndrivers/pci/controller/Kconfig-102-\thelp\n--\ndrivers/pci/controller/Kconfig=106=config PCIE_IPROC_BCMA\ndrivers/pci/controller/Kconfig-107-\ttristate \"Broadcom iProc BCMA PCIe controller\"\ndrivers/pci/controller/Kconfig:108:\tdepends on ARM \u0026\u0026 (ARCH_BCM_IPROC \|\| COMPILE_TEST)\ndrivers/pci/controller/Kconfig-109-\tselect PCIE_IPROC\n--\ndrivers/pci/controller/Kconfig=116=config PCIE_IPROC_MSI\n--\ndrivers/pci/controller/Kconfig-120-\tselect IRQ_MSI_LIB\ndrivers/pci/controller/Kconfig:121:\tdefault ARCH_BCM_IPROC\ndrivers/pci/controller/Kconfig-122-\thelp\n--\ndrivers/phy/broadcom/Kconfig=24=config PHY_BCM_SR_USB\ndrivers/phy/broadcom/Kconfig-25-\ttristate \"Broadcom Stingray USB PHY driver\"\ndrivers/phy/broadcom/Kconfig:26:\tdepends on OF \u0026\u0026 (ARCH_BCM_IPROC \|\| COMPILE_TEST)\ndrivers/phy/broadcom/Kconfig-27-\tselect GENERIC_PHY\ndrivers/phy/broadcom/Kconfig:28:\tdefault ARCH_BCM_IPROC\ndrivers/phy/broadcom/Kconfig-29-\thelp\n--\ndrivers/phy/broadcom/Kconfig=42=config PHY_BCM_NS_USB2\ndrivers/phy/broadcom/Kconfig-43-\ttristate \"Broadcom Northstar USB 2.0 PHY Driver\"\ndrivers/phy/broadcom/Kconfig:44:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/phy/broadcom/Kconfig-45-\tdepends on HAS_IOMEM \u0026\u0026 OF\n--\ndrivers/phy/broadcom/Kconfig=51=config PHY_BCM_NS_USB3\ndrivers/phy/broadcom/Kconfig-52-\ttristate \"Broadcom Northstar USB 3.0 PHY Driver\"\ndrivers/phy/broadcom/Kconfig:53:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/phy/broadcom/Kconfig-54-\tdepends on HAS_IOMEM \u0026\u0026 OF\n--\ndrivers/phy/broadcom/Kconfig=61=config PHY_NS2_PCIE\n--\ndrivers/phy/broadcom/Kconfig-64-\tselect GENERIC_PHY\ndrivers/phy/broadcom/Kconfig:65:\tdefault ARCH_BCM_IPROC\ndrivers/phy/broadcom/Kconfig-66-\thelp\n--\ndrivers/phy/broadcom/Kconfig=70=config PHY_NS2_USB_DRD\ndrivers/phy/broadcom/Kconfig-71-\ttristate \"Broadcom Northstar2 USB DRD PHY support\"\ndrivers/phy/broadcom/Kconfig:72:\tdepends on OF \u0026\u0026 (ARCH_BCM_IPROC \|\| COMPILE_TEST)\ndrivers/phy/broadcom/Kconfig-73-\tselect GENERIC_PHY\ndrivers/phy/broadcom/Kconfig-74-\tselect EXTCON\ndrivers/phy/broadcom/Kconfig:75:\tdefault ARCH_BCM_IPROC\ndrivers/phy/broadcom/Kconfig-76-\thelp\n--\ndrivers/phy/broadcom/Kconfig=83=config PHY_BRCM_SATA\ndrivers/phy/broadcom/Kconfig-84-\ttristate \"Broadcom SATA PHY driver\"\ndrivers/phy/broadcom/Kconfig:85:\tdepends on ARCH_BRCMSTB \|\| ARCH_BCM_IPROC \|\| BMIPS_GENERIC \|\| \\\ndrivers/phy/broadcom/Kconfig-86-\t\t ARCH_BCMBCA \|\| COMPILE_TEST\n--\ndrivers/phy/broadcom/Kconfig-88-\tselect GENERIC_PHY\ndrivers/phy/broadcom/Kconfig:89:\tdefault ARCH_BCM_IPROC\ndrivers/phy/broadcom/Kconfig-90-\thelp\n--\ndrivers/phy/broadcom/Kconfig=107=config PHY_BCM_SR_PCIE\ndrivers/phy/broadcom/Kconfig-108-\ttristate \"Broadcom Stingray PCIe PHY driver\"\ndrivers/phy/broadcom/Kconfig:109:\tdepends on OF \u0026\u0026 (ARCH_BCM_IPROC \|\| COMPILE_TEST)\ndrivers/phy/broadcom/Kconfig-110-\tselect GENERIC_PHY\ndrivers/phy/broadcom/Kconfig-111-\tselect MFD_SYSCON\ndrivers/phy/broadcom/Kconfig:112:\tdefault ARCH_BCM_IPROC\ndrivers/phy/broadcom/Kconfig-113-\thelp\n--\ndrivers/pinctrl/bcm/Kconfig=121=config PINCTRL_IPROC_GPIO\ndrivers/pinctrl/bcm/Kconfig-122-\tbool \"Broadcom iProc GPIO (with PINCONF) driver\"\ndrivers/pinctrl/bcm/Kconfig:123:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/pinctrl/bcm/Kconfig-124-\tselect GPIOLIB\n--\ndrivers/pinctrl/bcm/Kconfig-127-\tselect GENERIC_PINCONF\ndrivers/pinctrl/bcm/Kconfig:128:\tdefault ARCH_BCM_IPROC\ndrivers/pinctrl/bcm/Kconfig-129-\thelp\n--\ndrivers/pinctrl/bcm/Kconfig=205=config PINCTRL_NS2_MUX\n--\ndrivers/pinctrl/bcm/Kconfig-207-\tdepends on OF\ndrivers/pinctrl/bcm/Kconfig:208:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/pinctrl/bcm/Kconfig-209-\tselect PINMUX\ndrivers/pinctrl/bcm/Kconfig-210-\tselect GENERIC_PINCONF\ndrivers/pinctrl/bcm/Kconfig:211:\tdefault ARM64 \u0026\u0026 ARCH_BCM_IPROC\ndrivers/pinctrl/bcm/Kconfig-212-\thelp\n--\ndrivers/ptp/Kconfig=42=config PTP_1588_CLOCK_DTE\n--\ndrivers/ptp/Kconfig-45-\tdepends on NET \u0026\u0026 HAS_IOMEM\ndrivers/ptp/Kconfig:46:\tdepends on ARCH_BCM_MOBILE \|\| (ARCH_BCM_IPROC \u0026\u0026 !(ARCH_BCM_NSP \|\| ARCH_BCM_5301X)) \|\| COMPILE_TEST\ndrivers/ptp/Kconfig:47:\tdefault y if ARCH_BCM_MOBILE \|\| ARCH_BCM_IPROC\ndrivers/ptp/Kconfig-48-\thelp\n--\ndrivers/pwm/Kconfig=155=config PWM_BCM_IPROC\ndrivers/pwm/Kconfig-156-\ttristate \"iProc PWM support\"\ndrivers/pwm/Kconfig:157:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/pwm/Kconfig-158-\tdepends on COMMON_CLK \u0026\u0026 HAS_IOMEM\ndrivers/pwm/Kconfig:159:\tdefault ARCH_BCM_IPROC\ndrivers/pwm/Kconfig-160-\thelp\n--\ndrivers/spi/Kconfig=262=config SPI_BCM_QSPI\ndrivers/spi/Kconfig-263-\ttristate \"Broadcom BSPI and MSPI controller support\"\ndrivers/spi/Kconfig:264:\tdepends on ARCH_BRCMSTB \|\| ARCH_BCM \|\| ARCH_BCM_IPROC \|\| \\\ndrivers/spi/Kconfig-265-\t\t\tBMIPS_GENERIC \|\| COMPILE_TEST\ndrivers/spi/Kconfig:266:\tdefault ARCH_BCM_IPROC\ndrivers/spi/Kconfig-267-\thelp\n--\ndrivers/thermal/Kconfig=452=menu \"Broadcom thermal drivers\"\ndrivers/thermal/Kconfig:453:depends on ARCH_BCM \|\| ARCH_BRCMSTB \|\| ARCH_BCM2835 \|\| ARCH_BCM_IPROC \|\| \\\ndrivers/thermal/Kconfig-454-\t\tCOMPILE_TEST\n--\ndrivers/thermal/broadcom/Kconfig=24=config BCM_NS_THERMAL\ndrivers/thermal/broadcom/Kconfig-25-\ttristate \"Northstar thermal driver\"\ndrivers/thermal/broadcom/Kconfig:26:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/thermal/broadcom/Kconfig:27:\tdefault y if ARCH_BCM_IPROC\ndrivers/thermal/broadcom/Kconfig-28-\thelp\n--\ndrivers/thermal/broadcom/Kconfig=34=config BCM_SR_THERMAL\ndrivers/thermal/broadcom/Kconfig-35-\ttristate \"Stingray thermal driver\"\ndrivers/thermal/broadcom/Kconfig:36:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/thermal/broadcom/Kconfig:37:\tdefault ARCH_BCM_IPROC\ndrivers/thermal/broadcom/Kconfig-38-\thelp\n--\ndrivers/usb/gadget/udc/Kconfig=240=config USB_SNP_UDC_PLAT\n--\ndrivers/usb/gadget/udc/Kconfig-244-\tselect USB_SNP_CORE\ndrivers/usb/gadget/udc/Kconfig:245:\tdefault ARCH_BCM_IPROC\ndrivers/usb/gadget/udc/Kconfig-246-\thelp\n--\ndrivers/vfio/platform/reset/Kconfig=17=config VFIO_PLATFORM_BCMFLEXRM_RESET\ndrivers/vfio/platform/reset/Kconfig-18-\ttristate \"VFIO support for Broadcom FlexRM reset (DEPRECATED)\"\ndrivers/vfio/platform/reset/Kconfig:19:\tdepends on ARCH_BCM_IPROC \|\| COMPILE_TEST\ndrivers/vfio/platform/reset/Kconfig:20:\tdefault ARCH_BCM_IPROC\ndrivers/vfio/platform/reset/Kconfig-21-\thelp\n" }
11/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 15216 output: 44 thoughts: 258 Thoughts: Analyzing the Broadcom BNXT Firmware Manager Okay, so I'm looking at this `ARCH_BCM_IPROC` configuration, and it's immediately clear this is just for ARM and ARM64. The Kconfig shows it explicitly defined for those architectures, but poof – it's absent on amd64. Alright, that's not unexpected. Now, what's this `COMPILE_TEST && TEE` dependency in `drivers/firmware/broadcom/Kconfig`? It's like a back door. The configuration for `TEE_BNXT_FW` is dependent on either `(ARCH_BCM_IPROC && OPTEE)` or `(COMPILE_TEST && TEE)`. Hmmm, I initially assumed it's only dependent on IPROC architecture, but `COMPILE_TEST` seems to allow its build on other architectures. My initial assumption that it was ARM architecture only, looks to be wrong. This is key, potentially. Could `COMPILE_TEST` truly enable this for amd64? This is a build-time test option. Yes, essentially allowing the build of drivers for different architectures. It could allow the driver to be compiled on amd64, even if it's not specifically designed for it. However, the real question is: Can it execute? Compiling is one thing, but can the `tee_bnxt_fw` actually run on amd64 if built this way? I need to understand how the firmware manager is instantiated, probed, and ultimately, called. Time to dive into the source code, specifically `tee_bnxt_fw.c`. I need to see how the code is structured in order to understand if the conditions exist for it to be executed.
12/2	2026/09/24 01:40	tool	read-file	0m Args: { "File": "drivers/firmware/broadcom/tee_bnxt_fw.c", "FirstLine": 245, "LineCount": 45 } Results: { "Contents": " 245:\t\treturn err;\n 246:\t}\n 247:\t\n 248:\tstatic void tee_bnxt_fw_remove(struct tee_client_device bnxt_device)\n 249:\t{\n 250:\t\ttee_shm_free(pvt_data.fw_shm_pool);\n 251:\t\ttee_client_close_session(pvt_data.ctx, pvt_data.session_id);\n 252:\t\ttee_client_close_context(pvt_data.ctx);\n 253:\t\tpvt_data.ctx = NULL;\n 254:\t}\n 255:\t\n 256:\tstatic void tee_bnxt_fw_shutdown(struct tee_client_device bnxt_device)\n 257:\t{\n 258:\t\ttee_shm_free(pvt_data.fw_shm_pool);\n 259:\t\ttee_client_close_session(pvt_data.ctx, pvt_data.session_id);\n 260:\t\ttee_client_close_context(pvt_data.ctx);\n 261:\t\tpvt_data.ctx = NULL;\n 262:\t}\n 263:\t\n 264:\tstatic const struct tee_client_device_id tee_bnxt_fw_id_table[] = {\n 265:\t\t{UUID_INIT(0x6272636D, 0x2019, 0x0716,\n 266:\t\t\t 0x42, 0x43, 0x4D, 0x5F, 0x53, 0x43, 0x48, 0x49)},\n 267:\t\t{}\n 268:\t};\n 269:\t\n 270:\tMODULE_DEVICE_TABLE(tee, tee_bnxt_fw_id_table);\n 271:\t\n 272:\tstatic struct tee_client_driver tee_bnxt_fw_driver = {\n 273:\t\t.probe\t\t= tee_bnxt_fw_probe,\n 274:\t\t.remove\t\t= tee_bnxt_fw_remove,\n 275:\t\t.shutdown\t= tee_bnxt_fw_shutdown,\n 276:\t\t.id_table\t= tee_bnxt_fw_id_table,\n 277:\t\t.driver\t\t= {\n 278:\t\t\t.name\t\t= KBUILD_MODNAME,\n 279:\t\t},\n 280:\t};\n 281:\t\n 282:\tmodule_tee_client_driver(tee_bnxt_fw_driver);\n 283:\t\n 284:\tMODULE_AUTHOR(\"Vikas Gupta \u003cvikas.gupta@broadcom.com\u003e\");\n 285:\tMODULE_DESCRIPTION(\"Broadcom bnxt firmware manager\");\n 286:\tMODULE_LICENSE(\"GPL v2\");\n" }
13/2	2026/09/24 01:40	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 16660 output: 19 thoughts: 55 Thoughts: Here's my summary, as though I'm thinking through this process: Diving into the TEE Client Driver Okay, so I'm looking at this `module_tee_client_driver` function, specifically related to the `tee_bnxt_fw_driver`. Right, that means I'm dealing with the client-side interaction with a trusted execution environment (TEE) using a specific hardware implementation – the Broadcom NetXtreme (bnxt) family firmware driver. I need to understand how this client device is registered. It's a fundamental question. How does the kernel know about this TEE client? Alright, time to get practical. The best way to untangle this is to use the good old `grep`. Let's search the kernel source for the string `tee_client_device`. I want to see exactly where this structure is defined, used, and, critically, registered within the system. This should illuminate the driver's role and how the TEE client's presence is established with the kernel. That should give me a solid starting point for understanding this component.
14/2	2026/09/24 01:40	tool	grepper	0m Args: { "Expression": "tee_client_device" } Results: { "Output": "Documentation/driver-api/tee.rst=35=snippet would look like::\nDocumentation/driver-api/tee.rst-36-\nDocumentation/driver-api/tee.rst:37:\tstatic const struct tee_client_device_id client_id_table[] = {\nDocumentation/driver-api/tee.rst-38-\t\t{UUID_INIT(0xac6a4085, 0x0e82, 0x4c33,\n--\ndrivers/bus/stm32_dbg_bus.c=47=static int stm32_dbg_pta_open_session(u32 id)\ndrivers/bus/stm32_dbg_bus.c-48-{\ndrivers/bus/stm32_dbg_bus.c:49:\tstruct tee_client_device dbg_bus_dev = to_tee_client_device(stm32_dbg_bus_priv-\u003edev);\ndrivers/bus/stm32_dbg_bus.c-50-\tstruct tee_ioctl_open_session_arg sess_arg;\n--\ndrivers/bus/stm32_dbg_bus.c=172=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/bus/stm32_dbg_bus.c-176-\ndrivers/bus/stm32_dbg_bus.c:177:static void stm32_dbg_bus_remove(struct tee_client_device tee_dev)\ndrivers/bus/stm32_dbg_bus.c-178-{\n--\ndrivers/bus/stm32_dbg_bus.c-184-\ndrivers/bus/stm32_dbg_bus.c:185:static int stm32_dbg_bus_probe(struct tee_client_device tee_dev)\ndrivers/bus/stm32_dbg_bus.c-186-{\n--\ndrivers/bus/stm32_dbg_bus.c-209-\ndrivers/bus/stm32_dbg_bus.c:210:static const struct tee_client_device_id optee_dbg_bus_id_table[] = {\ndrivers/bus/stm32_dbg_bus.c-211-\t{UUID_INIT(0xdd05bc8b, 0x9f3b, 0x49f0,\n--\ndrivers/char/hw_random/optee-rng.c=206=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/char/hw_random/optee-rng.c-210-\ndrivers/char/hw_random/optee-rng.c:211:static int optee_rng_probe(struct tee_client_device rng_device)\ndrivers/char/hw_random/optee-rng.c-212-{\n--\ndrivers/char/hw_random/optee-rng.c-260-\ndrivers/char/hw_random/optee-rng.c:261:static void optee_rng_remove(struct tee_client_device tee_dev)\ndrivers/char/hw_random/optee-rng.c-262-{\n--\ndrivers/char/hw_random/optee-rng.c-266-\ndrivers/char/hw_random/optee-rng.c:267:static const struct tee_client_device_id optee_rng_id_table[] = {\ndrivers/char/hw_random/optee-rng.c-268-\t{UUID_INIT(0xab7a617c, 0xb8e7, 0x4d8f,\n--\ndrivers/char/tpm/tpm_ftpm_tee.c=172=static int ftpm_tee_probe_generic(struct device dev)\n--\ndrivers/char/tpm/tpm_ftpm_tee.c-253-\ndrivers/char/tpm/tpm_ftpm_tee.c:254:static int ftpm_tee_probe(struct tee_client_device tcdev)\ndrivers/char/tpm/tpm_ftpm_tee.c-255-{\n--\ndrivers/char/tpm/tpm_ftpm_tee.c=275=static void ftpm_tee_remove_generic(struct device dev)\n--\ndrivers/char/tpm/tpm_ftpm_tee.c-296-\ndrivers/char/tpm/tpm_ftpm_tee.c:297:static void ftpm_tee_remove(struct tee_client_device tcdev)\ndrivers/char/tpm/tpm_ftpm_tee.c-298-{\n--\ndrivers/char/tpm/tpm_ftpm_tee.c=330=static struct platform_driver ftpm_tee_plat_driver = {\n--\ndrivers/char/tpm/tpm_ftpm_tee.c-340-/* UUID of the fTPM TA /\ndrivers/char/tpm/tpm_ftpm_tee.c:341:static const struct tee_client_device_id optee_ftpm_id_table[] = {\ndrivers/char/tpm/tpm_ftpm_tee.c-342-\t{UUID_INIT(0xbc50d971, 0xd4c9, 0x42c4,\n--\ndrivers/firmware/arm_scmi/transports/optee.c=160=static int open_session(struct scmi_optee_agent agent, u32 tee_session)\n--\ndrivers/firmware/arm_scmi/transports/optee.c-162-\tstruct device dev = agent-\u003edev;\ndrivers/firmware/arm_scmi/transports/optee.c:163:\tstruct tee_client_device scmi_pta = to_tee_client_device(dev);\ndrivers/firmware/arm_scmi/transports/optee.c-164-\tstruct tee_ioctl_open_session_arg arg = { };\n--\ndrivers/firmware/arm_scmi/transports/optee.c=531=DEFINE_SCMI_TRANSPORT_DRIVER(scmi_optee, scmi_optee_driver, scmi_optee_desc,\n--\ndrivers/firmware/arm_scmi/transports/optee.c-533-\ndrivers/firmware/arm_scmi/transports/optee.c:534:static int scmi_optee_service_probe(struct tee_client_device scmi_pta)\ndrivers/firmware/arm_scmi/transports/optee.c-535-{\n--\ndrivers/firmware/arm_scmi/transports/optee.c-585-\ndrivers/firmware/arm_scmi/transports/optee.c:586:static void scmi_optee_service_remove(struct tee_client_device scmi_pta)\ndrivers/firmware/arm_scmi/transports/optee.c-587-{\n--\ndrivers/firmware/arm_scmi/transports/optee.c-602-\ndrivers/firmware/arm_scmi/transports/optee.c:603:static const struct tee_client_device_id scmi_optee_service_id[] = {\ndrivers/firmware/arm_scmi/transports/optee.c-604-\t{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c=185=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-189-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:190:static int tee_bnxt_fw_probe(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-191-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-247-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:248:static void tee_bnxt_fw_remove(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-249-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-255-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:256:static void tee_bnxt_fw_shutdown(struct tee_client_device bnxt_device)\ndrivers/firmware/broadcom/tee_bnxt_fw.c-257-{\n--\ndrivers/firmware/broadcom/tee_bnxt_fw.c-263-\ndrivers/firmware/broadcom/tee_bnxt_fw.c:264:static const struct tee_client_device_id tee_bnxt_fw_id_table[] = {\ndrivers/firmware/broadcom/tee_bnxt_fw.c-265-\t{UUID_INIT(0x6272636D, 0x2019, 0x0716,\n--\ndrivers/firmware/efi/stmm/tee_stmm_efi.c=27=static struct tee_stmm_efi_private pvt_data;\n--\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-29-/* UUID of the stmm PTA /\ndrivers/firmware/efi/stmm/tee_stmm_efi.c:30:static const struct tee_client_device_id tee_stmm_efi_id_table[] = {\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-31-\t{PTA_STMM_UUID},\n--\ndrivers/firmware/efi/stmm/tee_stmm_efi.c=522=static const struct efivar_operations tee_efivar_ops = {\n--\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-530-\ndrivers/firmware/efi/stmm/tee_stmm_efi.c:531:static int tee_stmm_efi_probe(struct tee_client_device tee_dev)\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-532-{\n--\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-575-\ndrivers/firmware/efi/stmm/tee_stmm_efi.c:576:static void tee_stmm_efi_remove(struct tee_client_device dev)\ndrivers/firmware/efi/stmm/tee_stmm_efi.c-577-{\n--\ndrivers/firmware/qcom/qcom_pas_tee.c=411=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/firmware/qcom/qcom_pas_tee.c-415-\ndrivers/firmware/qcom/qcom_pas_tee.c:416:static int qcom_pas_tee_probe(struct tee_client_device pas_dev)\ndrivers/firmware/qcom/qcom_pas_tee.c-417-{\n--\ndrivers/firmware/qcom/qcom_pas_tee.c-449-\ndrivers/firmware/qcom/qcom_pas_tee.c:450:static void qcom_pas_tee_remove(struct tee_client_device pas_dev)\ndrivers/firmware/qcom/qcom_pas_tee.c-451-{\n--\ndrivers/firmware/qcom/qcom_pas_tee.c-459-\ndrivers/firmware/qcom/qcom_pas_tee.c:460:static const struct tee_client_device_id qcom_pas_tee_id_table[] = {\ndrivers/firmware/qcom/qcom_pas_tee.c-461-\t{UUID_INIT(0xcff7d191, 0x7ca0, 0x4784,\n--\ndrivers/rtc/rtc-optee.c=542=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\ndrivers/rtc/rtc-optee.c-546-\ndrivers/rtc/rtc-optee.c:547:static int optee_rtc_probe(struct tee_client_device rtc_device)\ndrivers/rtc/rtc-optee.c-548-{\n--\ndrivers/rtc/rtc-optee.c-681-\ndrivers/rtc/rtc-optee.c:682:static void optee_rtc_remove(struct tee_client_device rtc_device)\ndrivers/rtc/rtc-optee.c-683-{\n--\ndrivers/rtc/rtc-optee.c=711=static DEFINE_SIMPLE_DEV_PM_OPS(optee_rtc_pm_ops, optee_rtc_suspend, NULL);\ndrivers/rtc/rtc-optee.c-712-\ndrivers/rtc/rtc-optee.c:713:static const struct tee_client_device_id optee_rtc_id_table[] = {\ndrivers/rtc/rtc-optee.c-714-\t{UUID_INIT(0xf389f8c8, 0x845f, 0x496c,\n--\ndrivers/tee/optee/device.c=60=static void optee_release_device(struct device dev)\ndrivers/tee/optee/device.c-61-{\ndrivers/tee/optee/device.c:62:\tstruct tee_client_device optee_device = to_tee_client_device(dev);\ndrivers/tee/optee/device.c-63-\n--\ndrivers/tee/optee/device.c=76=static int optee_register_device(const uuid_t device_uuid, u32 func)\ndrivers/tee/optee/device.c-77-{\ndrivers/tee/optee/device.c:78:\tstruct tee_client_device optee_device = NULL;\ndrivers/tee/optee/device.c-79-\tint rc;\n--\ndrivers/tee/tee_core.c=1406=int tee_client_cancel_req(struct tee_context ctx,\n--\ndrivers/tee/tee_core.c-1414-\ndrivers/tee/tee_core.c:1415:static int tee_client_device_match(struct device dev,\ndrivers/tee/tee_core.c-1416-\t\t\t\t const struct device_driver drv)\ndrivers/tee/tee_core.c-1417-{\ndrivers/tee/tee_core.c:1418:\tconst struct tee_client_device_id id_table;\ndrivers/tee/tee_core.c:1419:\tstruct tee_client_device tee_device;\ndrivers/tee/tee_core.c-1420-\ndrivers/tee/tee_core.c-1421-\tid_table = to_tee_client_driver(drv)-\u003eid_table;\ndrivers/tee/tee_core.c:1422:\ttee_device = to_tee_client_device(dev);\ndrivers/tee/tee_core.c-1423-\n--\ndrivers/tee/tee_core.c-1432-\ndrivers/tee/tee_core.c:1433:static int tee_client_device_uevent(const struct device dev,\ndrivers/tee/tee_core.c-1434-\t\t\t\t struct kobj_uevent_env env)\ndrivers/tee/tee_core.c-1435-{\ndrivers/tee/tee_core.c:1436:\tuuid_t dev_id = \u0026to_tee_client_device(dev)-\u003eid.uuid;\ndrivers/tee/tee_core.c-1437-\n--\ndrivers/tee/tee_core.c-1440-\ndrivers/tee/tee_core.c:1441:static int tee_client_device_probe(struct device dev)\ndrivers/tee/tee_core.c-1442-{\ndrivers/tee/tee_core.c:1443:\tstruct tee_client_device tcdev = to_tee_client_device(dev);\ndrivers/tee/tee_core.c-1444-\tstruct tee_client_driver drv = to_tee_client_driver(dev-\u003edriver);\n--\ndrivers/tee/tee_core.c-1451-\ndrivers/tee/tee_core.c:1452:static void tee_client_device_remove(struct device dev)\ndrivers/tee/tee_core.c-1453-{\ndrivers/tee/tee_core.c:1454:\tstruct tee_client_device tcdev = to_tee_client_device(dev);\ndrivers/tee/tee_core.c-1455-\tstruct tee_client_driver drv = to_tee_client_driver(dev-\u003edriver);\n--\ndrivers/tee/tee_core.c-1460-\ndrivers/tee/tee_core.c:1461:static void tee_client_device_shutdown(struct device dev)\ndrivers/tee/tee_core.c-1462-{\ndrivers/tee/tee_core.c:1463:\tstruct tee_client_device tcdev = to_tee_client_device(dev);\ndrivers/tee/tee_core.c-1464-\tstruct tee_client_driver drv = to_tee_client_driver(dev-\u003edriver);\n--\ndrivers/tee/tee_core.c=1470=const struct bus_type tee_bus_type = {\ndrivers/tee/tee_core.c-1471-\t.name\t\t= \"tee\",\ndrivers/tee/tee_core.c:1472:\t.match\t\t= tee_client_device_match,\ndrivers/tee/tee_core.c:1473:\t.uevent\t\t= tee_client_device_uevent,\ndrivers/tee/tee_core.c:1474:\t.probe\t\t= tee_client_device_probe,\ndrivers/tee/tee_core.c:1475:\t.remove\t\t= tee_client_device_remove,\ndrivers/tee/tee_core.c:1476:\t.shutdown\t= tee_client_device_shutdown,\ndrivers/tee/tee_core.c-1477-};\ndrivers/tee/tee_core.c=1478=EXPORT_SYMBOL_GPL(tee_bus_type);\ndrivers/tee/tee_core.c-1479-\ndrivers/tee/tee_core.c:1480:static int tee_client_device_probe_legacy(struct tee_client_device tcdev)\ndrivers/tee/tee_core.c-1481-{\n--\ndrivers/tee/tee_core.c-1487-\ndrivers/tee/tee_core.c:1488:static void tee_client_device_remove_legacy(struct tee_client_device tcdev)\ndrivers/tee/tee_core.c-1489-{\n--\ndrivers/tee/tee_core.c-1495-\ndrivers/tee/tee_core.c:1496:static void tee_client_device_shutdown_legacy(struct tee_client_device tcdev)\ndrivers/tee/tee_core.c-1497-{\n--\ndrivers/tee/tee_core.c=1504=int __tee_client_driver_register(struct tee_client_driver tee_driver,\n--\ndrivers/tee/tee_core.c-1515-\tif (!tee_driver-\u003eprobe \u0026\u0026 tee_driver-\u003edriver.probe)\ndrivers/tee/tee_core.c:1516:\t\ttee_driver-\u003eprobe = tee_client_device_probe_legacy;\ndrivers/tee/tee_core.c-1517-\tif (!tee_driver-\u003eremove \u0026\u0026 tee_driver-\u003edriver.remove)\ndrivers/tee/tee_core.c:1518:\t\ttee_driver-\u003eremove = tee_client_device_remove_legacy;\ndrivers/tee/tee_core.c-1519-\tif (!tee_driver-\u003eshutdown \u0026\u0026 tee_driver-\u003edriver.probe)\ndrivers/tee/tee_core.c:1520:\t\ttee_driver-\u003eshutdown = tee_client_device_shutdown_legacy;\ndrivers/tee/tee_core.c-1521-\n--\ninclude/linux/device-id/tee_client.h-9-/*\ninclude/linux/device-id/tee_client.h:10: struct tee_client_device_id - tee based device identifier\ninclude/linux/device-id/tee_client.h-11- * @uuid: For TEE based client devices we use the device uuid as\n--\ninclude/linux/device-id/tee_client.h-13- /\ninclude/linux/device-id/tee_client.h:14:struct tee_client_device_id {\ninclude/linux/device-id/tee_client.h-15-\tuuid_t uuid;\n--\ninclude/linux/tee_drv.h=298=extern const struct bus_type tee_bus_type;\n--\ninclude/linux/tee_drv.h-300-/\ninclude/linux/tee_drv.h:301: struct tee_client_device - tee based device\ninclude/linux/tee_drv.h-302- * @id:\t\t\tdevice identifier\n--\ninclude/linux/tee_drv.h-304- /\ninclude/linux/tee_drv.h:305:struct tee_client_device {\ninclude/linux/tee_drv.h:306:\tstruct tee_client_device_id id;\ninclude/linux/tee_drv.h-307-\tstruct device dev;\n--\ninclude/linux/tee_drv.h-309-\ninclude/linux/tee_drv.h:310:#define to_tee_client_device(d) container_of(d, struct tee_client_device, dev)\ninclude/linux/tee_drv.h-311-\n--\ninclude/linux/tee_drv.h=317=struct tee_client_driver {\ninclude/linux/tee_drv.h:318:\tint (probe)(struct tee_client_device );\ninclude/linux/tee_drv.h:319:\tvoid (remove)(struct tee_client_device );\ninclude/linux/tee_drv.h:320:\tvoid (shutdown)(struct tee_client_device );\ninclude/linux/tee_drv.h:321:\tconst struct tee_client_device_id id_table;\ninclude/linux/tee_drv.h-322-\tstruct device_driver driver;\n--\nscripts/mod/devicetable-offsets.c=10=int main(void)\n--\nscripts/mod/devicetable-offsets.c-244-\nscripts/mod/devicetable-offsets.c:245:\tDEVID(tee_client_device_id);\nscripts/mod/devicetable-offsets.c:246:\tDEVID_FIELD(tee_client_device_id, uuid);\nscripts/mod/devicetable-offsets.c-247-\n--\nscripts/mod/file2alias.c=1267=static void do_tee_entry(struct module mod, void symval)\nscripts/mod/file2alias.c-1268-{\nscripts/mod/file2alias.c:1269:\tDEF_FIELD_ADDR(symval, tee_client_device_id, uuid);\nscripts/mod/file2alias.c-1270-\n--\nscripts/mod/file2alias.c=1474=static const struct devtable devtable[] = {\n--\nscripts/mod/file2alias.c-1516-\t{\"typec\", SIZE_typec_device_id, do_typec_entry},\nscripts/mod/file2alias.c:1517:\t{\"tee\", SIZE_tee_client_device_id, do_tee_entry},\nscripts/mod/file2alias.c-1518-\t{\"wmi\", SIZE_wmi_device_id, do_wmi_entry},\n--\nsecurity/keys/trusted-keys/trusted_tee.c=196=static int optee_ctx_match(struct tee_ioctl_version_data ver, const void data)\n--\nsecurity/keys/trusted-keys/trusted_tee.c-204-\nsecurity/keys/trusted-keys/trusted_tee.c:205:static int trusted_key_probe(struct tee_client_device rng_device)\nsecurity/keys/trusted-keys/trusted_tee.c-206-{\n--\nsecurity/keys/trusted-keys/trusted_tee.c-246-\nsecurity/keys/trusted-keys/trusted_tee.c:247:static void trusted_key_remove(struct tee_client_device dev)\nsecurity/keys/trusted-keys/trusted_tee.c-248-{\n--\nsecurity/keys/trusted-keys/trusted_tee.c-253-\nsecurity/keys/trusted-keys/trusted_tee.c:254:static const struct tee_client_device_id trusted_key_id_table[] = {\nsecurity/keys/trusted-keys/trusted_tee.c-255-\t{UUID_INIT(0xf04a0fe7, 0x1f5d, 0x4b9b,\n" }
15/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 23349 output: 37 thoughts: 55 Thoughts: Here's my analysis of the provided information, as if these were my internal thoughts: Dissecting the OP-TEE Client Device Registration Okay, so the `tee_client_device` is the key. The first thing I need to confirm is where and how it's registered. The text tells me, quite explicitly, that `optee_register_device` in `drivers/tee/optee/device.c` is the responsible function. Excellent! That's a solid starting point. Now, logically, my next step is to dive right into `drivers/tee/optee/device.c`. I need to understand the exact mechanics of that registration process. What resources are being allocated? What device tree bindings are involved? What's the context in which this function is called? I'm going to have to dig into the details to understand the complete picture. This is a critical piece to understanding the overall OP-TEE driver architecture, and I need to grasp this foundational registration.
16/2	2026/09/24 01:41	tool	read-file	0m Args: { "File": "drivers/tee/optee/device.c", "FirstLine": 60, "LineCount": 60 } Results: { "Contents": " 60:\tstatic void optee_release_device(struct device dev)\n 61:\t{\n 62:\t\tstruct tee_client_device optee_device = to_tee_client_device(dev);\n 63:\t\n 64:\t\tkfree(optee_device);\n 65:\t}\n 66:\t\n 67:\tstatic ssize_t need_supplicant_show(struct device dev,\n 68:\t\t\t\t\t struct device_attribute attr,\n 69:\t\t\t\t\t char buf)\n 70:\t{\n 71:\t\treturn 0;\n 72:\t}\n 73:\t\n 74:\tstatic DEVICE_ATTR_RO(need_supplicant);\n 75:\t\n 76:\tstatic int optee_register_device(const uuid_t device_uuid, u32 func)\n 77:\t{\n 78:\t\tstruct tee_client_device optee_device = NULL;\n 79:\t\tint rc;\n 80:\t\n 81:\t\toptee_device = kzalloc_obj(optee_device);\n 82:\t\tif (!optee_device)\n 83:\t\t\treturn -ENOMEM;\n 84:\t\n 85:\t\toptee_device-\u003edev.bus = \u0026tee_bus_type;\n 86:\t\toptee_device-\u003edev.release = optee_release_device;\n 87:\t\tif (dev_set_name(\u0026optee_device-\u003edev, \"optee-ta-%pUb\", device_uuid)) {\n 88:\t\t\tkfree(optee_device);\n 89:\t\t\treturn -ENOMEM;\n 90:\t\t}\n 91:\t\tuuid_copy(\u0026optee_device-\u003eid.uuid, device_uuid);\n 92:\t\n 93:\t\trc = device_register(\u0026optee_device-\u003edev);\n 94:\t\tif (rc) {\n 95:\t\t\tpr_err(\"device registration failed, err: %d\\n\", rc);\n 96:\t\t\tput_device(\u0026optee_device-\u003edev);\n 97:\t\t\treturn rc;\n 98:\t\t}\n 99:\t\n 100:\t\tif (func == PTA_CMD_GET_DEVICES_SUPP)\n 101:\t\t\tdevice_create_file(\u0026optee_device-\u003edev,\n 102:\t\t\t\t\t \u0026dev_attr_need_supplicant);\n 103:\t\n 104:\t\treturn 0;\n 105:\t}\n 106:\t\n 107:\tstatic int __optee_enumerate_devices(u32 func)\n 108:\t{\n 109:\t\tconst uuid_t pta_uuid =\n 110:\t\t\tUUID_INIT(0x7011a688, 0xddde, 0x4053,\n 111:\t\t\t\t 0xa5, 0xa9, 0x7b, 0x3c, 0x4d, 0xdf, 0x13, 0xb8);\n 112:\t\tstruct tee_ioctl_open_session_arg sess_arg;\n 113:\t\tstruct tee_shm device_shm = NULL;\n 114:\t\tconst uuid_t device_uuid = NULL;\n 115:\t\tstruct tee_context *ctx = NULL;\n 116:\t\tu32 shm_size = 0, idx, num_devices = 0;\n 117:\t\tint rc;\n 118:\t\n 119:\t\tmemset(\u0026sess_arg, 0, sizeof(sess_arg));\n" }
17/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 24581 output: 26 thoughts: 41 Thoughts: Okay, let's break this down. Investigating OPTEE Registration and Compatibility My initial thought process here centers on understanding the fundamental mechanics of OPTEE. I need to figure out how it integrates into a system; specifically, how OPTEE is registered within the operational environment. Then I immediately need to establish whether a basic functional proof of concept can be validated. Given my experience, I want to confirm that OPTEE's execution can be mimicked on amd64 architecture using QEMU. That level of flexibility is often valuable for early prototyping and debugging, so it's a critical first test. Finally, I'll need to drill down into the low level code and understand the OPTEE driver's definition, and specifically how its dependencies are structured. Understanding dependencies is crucial for any meaningful integration or modification work.
18/2	2026/09/24 01:41	tool	grepper	0m Args: { "Expression": "config OPTEE", "PathPrefix": "drivers/tee" } Results: { "Output": "drivers/tee/optee/Kconfig-2-# OP-TEE Trusted Execution Environment Configuration\ndrivers/tee/optee/Kconfig:3:config OPTEE\ndrivers/tee/optee/Kconfig-4-\ttristate \"OP-TEE\"\n--\ndrivers/tee/optee/Kconfig-11-\ndrivers/tee/optee/Kconfig:12:config OPTEE_INSECURE_LOAD_IMAGE\ndrivers/tee/optee/Kconfig-13-\tbool \"Load OP-TEE image as firmware\"\n--\ndrivers/tee/optee/Kconfig-28-\ndrivers/tee/optee/Kconfig:29:config OPTEE_STATIC_PROTMEM_POOL\ndrivers/tee/optee/Kconfig-30-\tbool\n" }
19/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 25012 output: 35 thoughts: 15 Thoughts: Okay, here's my interpretation of that thought process, tailored for an expert audience, and written in the first person: Diving into the OP-TEE Kconfig Alright, time to get my hands dirty. My instinct is telling me to start by taking a look at `drivers/tee/optee/Kconfig`. It's almost second nature to start with the Kconfig files when working on anything OP-TEE-related in the kernel. This file, specifically, should be the central point for how OP-TEE is configured within the broader kernel build system. I'm expecting to see the usual suspects: options to enable/disable the OP-TEE driver, configurations for various platform-specific settings, maybe some dependencies on other kernel subsystems, and of course, a clear delineation of features that are selectable. This is where I'll get a good overview of the feature set, the build options, and how OP-TEE integrates, and I can start forming a mental map of the configuration space before I delve into the more detailed code. I'm expecting that it will be a straightforward first step, hopefully, laying the groundwork for more intricate investigation.
20/2	2026/09/24 01:41	tool	read-file	0m Args: { "File": "drivers/tee/optee/Kconfig", "FirstLine": 1, "LineCount": 40 } Results: { "Contents": " 1:\t# SPDX-License-Identifier: GPL-2.0-only\n 2:\t# OP-TEE Trusted Execution Environment Configuration\n 3:\tconfig OPTEE\n 4:\t\ttristate \"OP-TEE\"\n 5:\t\tdepends on HAVE_ARM_SMCCC\n 6:\t\tdepends on MMU\n 7:\t\tdepends on RPMB \|\| !RPMB\n 8:\t\thelp\n 9:\t\t This implements the OP-TEE Trusted Execution Environment (TEE)\n 10:\t\t driver.\n 11:\t\n 12:\tconfig OPTEE_INSECURE_LOAD_IMAGE\n 13:\t\tbool \"Load OP-TEE image as firmware\"\n 14:\t\tdefault n\n 15:\t\tdepends on OPTEE \u0026\u0026 ARM64\n 16:\t\thelp\n 17:\t\t This loads the BL32 image for OP-TEE as firmware when the driver is\n 18:\t\t probed. This returns -EPROBE_DEFER until the firmware is loadable from\n 19:\t\t the filesystem which is determined by checking the system_state until\n 20:\t\t it is in SYSTEM_RUNNING. This also requires enabling the corresponding\n 21:\t\t option in Trusted Firmware for Arm. The documentation there explains\n 22:\t\t the security threat associated with enabling this as well as\n 23:\t\t mitigations at the firmware and platform level.\n 24:\t\t https://trustedfirmware-a.readthedocs.io/en/latest/threat_model/threat_model.html\n 25:\t\n 26:\t\t Additional documentation on kernel security risks are at\n 27:\t\t Documentation/tee/op-tee.rst.\n 28:\t\n 29:\tconfig OPTEE_STATIC_PROTMEM_POOL\n 30:\t\tbool\n 31:\t\tdepends on HAS_IOMEM \u0026\u0026 TEE_DMABUF_HEAPS\n 32:\t\tdefault y\n" }
21/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 25777 output: 21 thoughts: 53 Thoughts: Investigating OP-TEE Dependency on ARM SMCCC Okay, here's what's going on. I'm looking at this line, specifically line 5: `depends on HAVE_ARM_SMCCC`. That's it! OP-TEE has a hard dependency, it relies on `HAVE_ARM_SMCCC`. This is a crucial piece of the puzzle. Now, the next logical step, from my perspective, is to verify the availability of `HAVE_ARM_SMCCC` on the amd64 architecture. We'll need to confirm its availability. I need to understand if this dependency poses any compatibility issues. Let's dig in and figure out if this is a blocker, or if we have it on the architecture we're working on.
22/2	2026/09/24 01:41	tool	grepper	0m Args: { "Expression": "HAVE_ARM_SMCCC" } Results: { "Output": "arch/arm/Kconfig=2=config ARM\n--\narch/arm/Kconfig-100-\tselect HAVE_ARCH_TRANSPARENT_HUGEPAGE if ARM_LPAE\narch/arm/Kconfig:101:\tselect HAVE_ARM_SMCCC if CPU_V7\narch/arm/Kconfig-102-\tselect HAVE_EBPF_JIT if !CPU_ENDIAN_BE32 \u0026\u0026 !CPU_32v3\n--\narch/arm/Kconfig=1085=config ARM_PSCI\narch/arm/Kconfig-1086-\tbool \"Support for the ARM Power State Coordination Interface (PSCI)\"\narch/arm/Kconfig:1087:\tdepends on HAVE_ARM_SMCCC\narch/arm/Kconfig-1088-\tselect ARM_PSCI_FW\n--\narch/arm/kernel/Makefile=100=endif\narch/arm/kernel/Makefile-101-\narch/arm/kernel/Makefile:102:obj-$(CONFIG_HAVE_ARM_SMCCC)\t+= smccc-call.o\narch/arm/kernel/Makefile-103-\n--\narch/arm/kernel/armksyms.c=171=EXPORT_SYMBOL(__pv_offset);\n--\narch/arm/kernel/armksyms.c-173-\narch/arm/kernel/armksyms.c:174:#ifdef CONFIG_HAVE_ARM_SMCCC\narch/arm/kernel/armksyms.c-175-EXPORT_SYMBOL(__arm_smccc_smc);\n--\narch/arm64/Kconfig=2=config ARM64\n--\narch/arm64/Kconfig-176-\tselect HAVE_ARCH_VMAP_STACK\narch/arm64/Kconfig:177:\tselect HAVE_ARM_SMCCC\narch/arm64/Kconfig-178-\tselect HAVE_ASM_MODVERSIONS\n--\ndrivers/char/hw_random/Kconfig=578=config HW_RANDOM_ARM_SMCCC_TRNG\ndrivers/char/hw_random/Kconfig-579-\ttristate \"Arm SMCCC TRNG firmware interface support\"\ndrivers/char/hw_random/Kconfig:580:\tdepends on HAVE_ARM_SMCCC_DISCOVERY\ndrivers/char/hw_random/Kconfig-581-\tdefault HW_RANDOM\n--\ndrivers/char/hw_random/mtk-rng.c=165=static int mtk_rng_probe(struct platform_device pdev)\n--\ndrivers/char/hw_random/mtk-rng.c-190-\ndrivers/char/hw_random/mtk-rng.c:191:\t\tif (IS_ENABLED(CONFIG_HAVE_ARM_SMCCC) \u0026\u0026\ndrivers/char/hw_random/mtk-rng.c-192-\t\t of_device_is_compatible(pdev-\u003edev.of_node,\n--\ndrivers/char/hw_random/mtk-rng.c-201-\tif (priv-\u003eflags \u0026 MTK_RNG_SMC) {\ndrivers/char/hw_random/mtk-rng.c:202:\t\tif (!IS_ENABLED(CONFIG_HAVE_ARM_SMCCC))\ndrivers/char/hw_random/mtk-rng.c-203-\t\t\treturn -ENODEV;\n--\ndrivers/clk/imx/Kconfig=95=config CLK_IMX8QXP\n--\ndrivers/clk/imx/Kconfig-97-\tdepends on (ARCH_MXC \u0026\u0026 ARM64) \|\| COMPILE_TEST\ndrivers/clk/imx/Kconfig:98:\tdepends on IMX_SCU \u0026\u0026 HAVE_ARM_SMCCC\ndrivers/clk/imx/Kconfig-99-\tselect MXC_CLK_SCU\n--\ndrivers/clocksource/arm_arch_timer.c=1271=int kvm_arch_ptp_get_crosststamp(u64 cycle, struct timespec64 ts,\n--\ndrivers/clocksource/arm_arch_timer.c-1277-\ndrivers/clocksource/arm_arch_timer.c:1278:\tif (!IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY))\ndrivers/clocksource/arm_arch_timer.c-1279-\t\treturn -EOPNOTSUPP;\n--\ndrivers/cpufreq/sun50i-cpufreq-nvmem.c=68=static int get_soc_id_revision(void)\ndrivers/cpufreq/sun50i-cpufreq-nvmem.c-69-{\ndrivers/cpufreq/sun50i-cpufreq-nvmem.c:70:#ifdef CONFIG_HAVE_ARM_SMCCC_DISCOVERY\ndrivers/cpufreq/sun50i-cpufreq-nvmem.c-71-\treturn arm_smccc_get_soc_id_revision();\n--\ndrivers/devfreq/Kconfig=112=config ARM_IMX8M_DDRC_DEVFREQ\ndrivers/devfreq/Kconfig-113-\ttristate \"i.MX8M DDRC DEVFREQ Driver\"\ndrivers/devfreq/Kconfig:114:\tdepends on (ARCH_MXC \u0026\u0026 HAVE_ARM_SMCCC) \|\| \\\ndrivers/devfreq/Kconfig:115:\t\t(COMPILE_TEST \u0026\u0026 HAVE_ARM_SMCCC)\ndrivers/devfreq/Kconfig-116-\tselect DEVFREQ_GOV_USERSPACE\n--\ndrivers/devfreq/Kconfig=143=config ARM_RK3399_DMC_DEVFREQ\ndrivers/devfreq/Kconfig-144-\ttristate \"ARM RK3399 DMC DEVFREQ Driver\"\ndrivers/devfreq/Kconfig:145:\tdepends on (ARCH_ROCKCHIP \u0026\u0026 HAVE_ARM_SMCCC) \|\| \\\ndrivers/devfreq/Kconfig:146:\t\t(COMPILE_TEST \u0026\u0026 HAVE_ARM_SMCCC)\ndrivers/devfreq/Kconfig-147-\tselect DEVFREQ_EVENT_ROCKCHIP_DFI\n--\ndrivers/firmware/Kconfig=166=config INTEL_STRATIX10_SERVICE\ndrivers/firmware/Kconfig-167-\ttristate \"Intel Stratix10 Service Layer\"\ndrivers/firmware/Kconfig:168:\tdepends on ARCH_INTEL_SOCFPGA \u0026\u0026 ARM64 \u0026\u0026 HAVE_ARM_SMCCC\ndrivers/firmware/Kconfig-169-\tdefault n\n--\ndrivers/firmware/arm_ffa/Kconfig=18=config ARM_FFA_SMCCC\n--\ndrivers/firmware/arm_ffa/Kconfig-20-\tdefault ARM_FFA_TRANSPORT\ndrivers/firmware/arm_ffa/Kconfig:21:\tdepends on ARM64 \u0026\u0026 HAVE_ARM_SMCCC_DISCOVERY\n--\ndrivers/firmware/arm_scmi/transports/Kconfig=37=config ARM_SCMI_TRANSPORT_SMC\ndrivers/firmware/arm_scmi/transports/Kconfig-38-\ttristate \"SCMI transport based on SMC\"\ndrivers/firmware/arm_scmi/transports/Kconfig:39:\tdepends on HAVE_ARM_SMCCC_DISCOVERY\ndrivers/firmware/arm_scmi/transports/Kconfig-40-\tselect ARM_SCMI_HAVE_TRANSPORT\n--\ndrivers/firmware/qcom/qcom_scm.c=2497=static void qcom_scm_gunyah_wdt_init(struct qcom_scm scm)\n--\ndrivers/firmware/qcom/qcom_scm.c-2511-\t/* Bail out if we are not running under Gunyah /\ndrivers/firmware/qcom/qcom_scm.c:2512:\tif (!IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY) \|\|\ndrivers/firmware/qcom/qcom_scm.c-2513-\t !arm_smccc_hypervisor_has_uuid(\u0026gunyah_uuid))\n--\ndrivers/firmware/smccc/Kconfig-1-# SPDX-License-Identifier: GPL-2.0-only\ndrivers/firmware/smccc/Kconfig:2:config HAVE_ARM_SMCCC\ndrivers/firmware/smccc/Kconfig-3-\tbool\n--\ndrivers/firmware/smccc/Kconfig-7-\ndrivers/firmware/smccc/Kconfig:8:config HAVE_ARM_SMCCC_DISCOVERY\ndrivers/firmware/smccc/Kconfig-9-\tbool\n--\ndrivers/firmware/smccc/Kconfig=18=config ARM_SMCCC_SOC_ID\ndrivers/firmware/smccc/Kconfig-19-\tbool \"SoC bus device for the ARM SMCCC SOC_ID\"\ndrivers/firmware/smccc/Kconfig:20:\tdepends on HAVE_ARM_SMCCC_DISCOVERY\ndrivers/firmware/smccc/Kconfig-21-\tdefault y\n--\ndrivers/firmware/smccc/Makefile-2-#\ndrivers/firmware/smccc/Makefile:3:obj-$(CONFIG_HAVE_ARM_SMCCC_DISCOVERY)\t+= smccc.o kvm_guest.o\ndrivers/firmware/smccc/Makefile-4-obj-$(CONFIG_ARM_SMCCC_SOC_ID)\t+= soc_id.o\n--\ndrivers/gpu/drm/mediatek/Kconfig=2=config DRM_MEDIATEK\n--\ndrivers/gpu/drm/mediatek/Kconfig-6-\tdepends on COMMON_CLK\ndrivers/gpu/drm/mediatek/Kconfig:7:\tdepends on HAVE_ARM_SMCCC \|\| COMPILE_TEST\ndrivers/gpu/drm/mediatek/Kconfig-8-\tdepends on OF\n--\ndrivers/irqchip/Kconfig=36=config ARM_GIC_V3\n--\ndrivers/irqchip/Kconfig-39-\tselect GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP\ndrivers/irqchip/Kconfig:40:\tselect HAVE_ARM_SMCCC_DISCOVERY\ndrivers/irqchip/Kconfig-41-\tselect IRQ_MSI_IOMMU\n--\ndrivers/nvmem/Kconfig=118=config NVMEM_AIROHA_SMC_EFUSES\n--\ndrivers/nvmem/Kconfig-121-\tdepends on ARCH_AIROHA \|\| COMPILE_TEST\ndrivers/nvmem/Kconfig:122:\tdepends on HAVE_ARM_SMCCC\ndrivers/nvmem/Kconfig-123-\tdefault ARCH_AIROHA\n--\ndrivers/nvmem/Kconfig=220=config NVMEM_IMX_OCOTP_SCU\n--\ndrivers/nvmem/Kconfig-222-\tdepends on IMX_SCU\ndrivers/nvmem/Kconfig:223:\tdepends on HAVE_ARM_SMCCC\ndrivers/nvmem/Kconfig-224-\thelp\n--\ndrivers/nvmem/stm32-romem.c=56=static int stm32_bsec_smc(u8 op, u32 otp, u32 data, u32 result)\ndrivers/nvmem/stm32-romem.c-57-{\ndrivers/nvmem/stm32-romem.c:58:#if IS_ENABLED(CONFIG_HAVE_ARM_SMCCC)\ndrivers/nvmem/stm32-romem.c-59-\tstruct arm_smccc_res res;\n--\ndrivers/pci/hotplug/Kconfig=64=config HOTPLUG_PCI_ACPI_AMPERE_ALTRA\n--\ndrivers/pci/hotplug/Kconfig-66-\tdepends on HOTPLUG_PCI_ACPI\ndrivers/pci/hotplug/Kconfig:67:\tdepends on HAVE_ARM_SMCCC_DISCOVERY\ndrivers/pci/hotplug/Kconfig-68-\thelp\n--\ndrivers/phy/marvell/Kconfig=27=config PHY_MVEBU_A3700_COMPHY\n--\ndrivers/phy/marvell/Kconfig-30-\tdepends on OF\ndrivers/phy/marvell/Kconfig:31:\tdepends on HAVE_ARM_SMCCC\ndrivers/phy/marvell/Kconfig-32-\tdefault ARCH_MVEBU\n--\ndrivers/phy/marvell/Kconfig=58=config PHY_MVEBU_CP110_COMPHY\n--\ndrivers/phy/marvell/Kconfig-61-\tdepends on OF\ndrivers/phy/marvell/Kconfig:62:\tdepends on HAVE_ARM_SMCCC\ndrivers/phy/marvell/Kconfig-63-\tselect GENERIC_PHY\n--\ndrivers/pmdomain/amlogic/Kconfig=15=config MESON_SECURE_PM_DOMAINS\n--\ndrivers/pmdomain/amlogic/Kconfig-18-\tdepends on PM \u0026\u0026 OF\ndrivers/pmdomain/amlogic/Kconfig:19:\tdepends on HAVE_ARM_SMCCC\ndrivers/pmdomain/amlogic/Kconfig-20-\tdefault ARCH_MESON\n--\ndrivers/pmdomain/mediatek/Kconfig=48=config AIROHA_CPU_PM_DOMAIN\n--\ndrivers/pmdomain/mediatek/Kconfig-51-\tdepends on ARCH_AIROHA \|\| COMPILE_TEST\ndrivers/pmdomain/mediatek/Kconfig:52:\tdepends on HAVE_ARM_SMCCC\ndrivers/pmdomain/mediatek/Kconfig-53-\tdepends on PM\n--\ndrivers/pmdomain/rockchip/Kconfig=4=config ROCKCHIP_PM_DOMAINS\n--\ndrivers/pmdomain/rockchip/Kconfig-7-\tdepends on PM\ndrivers/pmdomain/rockchip/Kconfig:8:\tdepends on HAVE_ARM_SMCCC_DISCOVERY\ndrivers/pmdomain/rockchip/Kconfig-9-\tdepends on REGULATOR\n--\ndrivers/ptp/Kconfig=123=config PTP_1588_CLOCK_KVM\n--\ndrivers/ptp/Kconfig-125-\tdepends on PTP_1588_CLOCK\ndrivers/ptp/Kconfig:126:\tdepends on (KVM_GUEST \u0026\u0026 X86) \|\| (HAVE_ARM_SMCCC_DISCOVERY \u0026\u0026 ARM_ARCH_TIMER)\ndrivers/ptp/Kconfig-127-\tdefault y\n--\ndrivers/ptp/Makefile=7=ptp_kvm-$(CONFIG_X86)\t\t\t:= ptp_kvm_x86.o ptp_kvm_common.o\ndrivers/ptp/Makefile:8:ptp_kvm-$(CONFIG_HAVE_ARM_SMCCC)\t:= ptp_kvm_arm.o ptp_kvm_common.o\ndrivers/ptp/Makefile-9-obj-$(CONFIG_PTP_1588_CLOCK)\t\t+= ptp.o\n--\ndrivers/remoteproc/Kconfig=35=config IMX_REMOTEPROC\n--\ndrivers/remoteproc/Kconfig-37-\tdepends on ARCH_MXC\ndrivers/remoteproc/Kconfig:38:\tdepends on HAVE_ARM_SMCCC\ndrivers/remoteproc/Kconfig-39-\tdepends on IMX_SCMI_CPU_DRV \|\| !IMX_SCMI_CPU_DRV\n--\ndrivers/remoteproc/Kconfig=48=config IMX_DSP_REMOTEPROC\n--\ndrivers/remoteproc/Kconfig-50-\tdepends on ARCH_MXC\ndrivers/remoteproc/Kconfig:51:\tdepends on HAVE_ARM_SMCCC\ndrivers/remoteproc/Kconfig-52-\tselect MAILBOX\n--\ndrivers/remoteproc/stm32_rproc.c=372=static int stm32_rproc_set_hold_boot(struct rproc rproc, bool hold)\n--\ndrivers/remoteproc/stm32_rproc.c-393-\t\t\terr = reset_control_assert(ddata-\u003ehold_boot_rst);\ndrivers/remoteproc/stm32_rproc.c:394:\t} else if (IS_ENABLED(CONFIG_HAVE_ARM_SMCCC) \u0026\u0026 ddata-\u003ehold_boot_smc) {\ndrivers/remoteproc/stm32_rproc.c-395-\t\t/ Use the SMC call /\n--\ndrivers/remoteproc/stm32_rproc.c=668=static int stm32_rproc_parse_dt(struct platform_device pdev,\n--\ndrivers/remoteproc/stm32_rproc.c-721-\ndrivers/remoteproc/stm32_rproc.c:722:\tif (!ddata-\u003ehold_boot_rst \u0026\u0026 IS_ENABLED(CONFIG_HAVE_ARM_SMCCC)) {\ndrivers/remoteproc/stm32_rproc.c-723-\t\t/* Manage the MCU_BOOT using SMC call /\n--\ndrivers/reset/Kconfig=128=config RESET_IMX_SCU\ndrivers/reset/Kconfig-129-\ttristate \"i.MX8Q Reset Driver\"\ndrivers/reset/Kconfig:130:\tdepends on IMX_SCU \u0026\u0026 HAVE_ARM_SMCCC\ndrivers/reset/Kconfig-131-\tdepends on (ARM64 \u0026\u0026 ARCH_MXC) \|\| COMPILE_TEST\n--\ndrivers/rtc/Kconfig=1910=config RTC_DRV_IMX_SC\ndrivers/rtc/Kconfig-1911-\tdepends on IMX_SCU\ndrivers/rtc/Kconfig:1912:\tdepends on HAVE_ARM_SMCCC\ndrivers/rtc/Kconfig-1913-\ttristate \"NXP i.MX System Controller RTC support\"\n--\ndrivers/soc/imx/soc-imx8m.c=39=struct imx8_soc_drvdata {\n--\ndrivers/soc/imx/soc-imx8m.c-43-\ndrivers/soc/imx/soc-imx8m.c:44:#ifdef CONFIG_HAVE_ARM_SMCCC\ndrivers/soc/imx/soc-imx8m.c-45-static u32 imx8mq_soc_revision_from_atf(void)\n--\ndrivers/soc/tegra/fuse/tegra-apbmisc.c=50=u8 tegra_get_chip_id(void)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-51-{\ndrivers/soc/tegra/fuse/tegra-apbmisc.c:52:#if IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-53-\ts32 soc_id = arm_smccc_get_soc_id_version();\n--\ndrivers/soc/tegra/fuse/tegra-apbmisc.c=61=u8 tegra_get_major_rev(void)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-62-{\ndrivers/soc/tegra/fuse/tegra-apbmisc.c:63:#if IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-64-\ts32 soc_id = arm_smccc_get_soc_id_version();\n--\ndrivers/soc/tegra/fuse/tegra-apbmisc.c=72=u8 tegra_get_minor_rev(void)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-73-{\ndrivers/soc/tegra/fuse/tegra-apbmisc.c:74:#if IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-75-\ts32 revision = arm_smccc_get_soc_id_revision();\n--\ndrivers/soc/tegra/fuse/tegra-apbmisc.c=84=u8 tegra_get_platform(void)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-85-{\ndrivers/soc/tegra/fuse/tegra-apbmisc.c:86:#if IS_ENABLED(CONFIG_HAVE_ARM_SMCCC_DISCOVERY)\ndrivers/soc/tegra/fuse/tegra-apbmisc.c-87-\ts32 revision = arm_smccc_get_soc_id_revision();\n--\ndrivers/tee/Kconfig=3=menuconfig TEE\ndrivers/tee/Kconfig-4-\ttristate \"Trusted Execution Environment support\"\ndrivers/tee/Kconfig:5:\tdepends on HAVE_ARM_SMCCC \|\| COMPILE_TEST \|\| CPU_SUP_AMD\ndrivers/tee/Kconfig-6-\tselect CRYPTO_LIB_SHA1\n--\ndrivers/tee/optee/Kconfig=3=config OPTEE\ndrivers/tee/optee/Kconfig-4-\ttristate \"OP-TEE\"\ndrivers/tee/optee/Kconfig:5:\tdepends on HAVE_ARM_SMCCC\ndrivers/tee/optee/Kconfig-6-\tdepends on MMU\n--\ndrivers/watchdog/Kconfig=827=config IMX_SC_WDT\ndrivers/watchdog/Kconfig-828-\ttristate \"IMX SC Watchdog\"\ndrivers/watchdog/Kconfig:829:\tdepends on HAVE_ARM_SMCCC\ndrivers/watchdog/Kconfig-830-\tdepends on IMX_SCU \|\| COMPILE_TEST\n--\ndrivers/watchdog/Kconfig=978=config ARM_SMC_WATCHDOG\n--\ndrivers/watchdog/Kconfig-981-\tdepends on OF\ndrivers/watchdog/Kconfig:982:\tdepends on HAVE_ARM_SMCCC\ndrivers/watchdog/Kconfig-983-\tselect WATCHDOG_CORE\n--\ndrivers/watchdog/Kconfig=2382=config GUNYAH_WATCHDOG\n--\ndrivers/watchdog/Kconfig-2384-\tdepends on ARCH_QCOM \|\| COMPILE_TEST\ndrivers/watchdog/Kconfig:2385:\tdepends on HAVE_ARM_SMCCC\ndrivers/watchdog/Kconfig-2386-\tselect WATCHDOG_CORE\n--\ninclude/linux/arm-smccc.h=490=struct arm_smccc_quirk {\n--\ninclude/linux/arm-smccc.h-508- /\ninclude/linux/arm-smccc.h:509:#ifdef CONFIG_HAVE_ARM_SMCCC\ninclude/linux/arm-smccc.h-510-asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1,\n" }
23/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 31608 output: 19 thoughts: 529 Thoughts: Analyzing the Potential for `CONFIG_TEE_BNXT_FW` on amd64 Okay, let's break this down systematically. My primary goal is to determine if `CONFIG_TEE_BNXT_FW` can ever be useful on an amd64 target, specifically in a QEMU environment. The Kconfig dependencies are the key here. First, I see the dependency: `(ARCH_BCM_IPROC && OPTEE) \|\| (COMPILE_TEST && TEE)`. I'm on amd64, so I immediately realize `ARCH_BCM_IPROC` is out; it's ARM/ARM64 specific. My initial thought is it can be enabled with `COMPILE_TEST && TEE`. I then dig into `OPTEE`. That's where things get interesting. `OPTEE` depends on `HAVE_ARM_SMCCC`. That's another ARM/ARM64 specific symbol. But, thankfully, `TEE` has another dependency, `HAVE_ARM_SMCCC \|\| COMPILE_TEST \|\| CPU_SUP_AMD`. Because I can enable `COMPILE_TEST` and `TEE` itself, then, `CONFIG_TEE_BNXT_FW` can be compiled, even on amd64. However, compiling is one thing; probing and executing are entirely different. This is where I have to be careful. The critical question: can the `tee_bnxt_fw` driver actually be used? So, I trace the driver's registration. `tee_bnxt_fw_driver` is registered with `module_tee_client_driver`, which attaches it to the `tee_bus_type`. For the driver to be used, there needs to be a `tee_client_device` also registered. It has to match the `tee_bnxt_fw_id_table`. Now, I have to figure out where `tee_client_device` instances are registered. A quick grep turned up `drivers/tee/optee/device.c`, with an `optee_register_device` function. I'm wondering if anything else registers devices on this bus, or if `optee` is the only game in town. I need to be sure that `tee_client_device` instances that match the driver are registered, so that it can actually probe and run. A more exhaustive search for registrations is necessary; I'll look for registrations of both `optee_register_device` and `tee_client_device` to be sure.
24/2	2026/09/24 01:41	tool	grepper	0m Args: { "Expression": "tee_bus_type" } Results: { "Output": "drivers/tee/optee/device.c=76=static int optee_register_device(const uuid_t device_uuid, u32 func)\n--\ndrivers/tee/optee/device.c-84-\ndrivers/tee/optee/device.c:85:\toptee_device-\u003edev.bus = \u0026tee_bus_type;\ndrivers/tee/optee/device.c-86-\toptee_device-\u003edev.release = optee_release_device;\n--\ndrivers/tee/optee/device.c=191=void optee_unregister_devices(void)\ndrivers/tee/optee/device.c-192-{\ndrivers/tee/optee/device.c:193:\tbus_for_each_dev(\u0026tee_bus_type, NULL, NULL,\ndrivers/tee/optee/device.c-194-\t\t\t __optee_unregister_device);\n--\ndrivers/tee/tee_core.c=1461=static void tee_client_device_shutdown(struct device dev)\n--\ndrivers/tee/tee_core.c-1469-\ndrivers/tee/tee_core.c:1470:const struct bus_type tee_bus_type = {\ndrivers/tee/tee_core.c-1471-\t.name\t\t= \"tee\",\n--\ndrivers/tee/tee_core.c-1477-};\ndrivers/tee/tee_core.c:1478:EXPORT_SYMBOL_GPL(tee_bus_type);\ndrivers/tee/tee_core.c-1479-\n--\ndrivers/tee/tee_core.c=1504=int __tee_client_driver_register(struct tee_client_driver tee_driver,\n--\ndrivers/tee/tee_core.c-1507-\ttee_driver-\u003edriver.owner = owner;\ndrivers/tee/tee_core.c:1508:\ttee_driver-\u003edriver.bus = \u0026tee_bus_type;\ndrivers/tee/tee_core.c-1509-\n--\ndrivers/tee/tee_core.c=1532=static int __init tee_init(void)\n--\ndrivers/tee/tee_core.c-1547-\ndrivers/tee/tee_core.c:1548:\trc = bus_register(\u0026tee_bus_type);\ndrivers/tee/tee_core.c-1549-\tif (rc) {\n--\ndrivers/tee/tee_core.c=1564=static void __exit tee_exit(void)\ndrivers/tee/tee_core.c-1565-{\ndrivers/tee/tee_core.c:1566:\tbus_unregister(\u0026tee_bus_type);\ndrivers/tee/tee_core.c-1567-\tunregister_chrdev_region(tee_devt, TEE_NUM_DEVICES);\n--\ninclude/linux/tee_drv.h=295=int tee_client_cancel_req(struct tee_context ctx,\n--\ninclude/linux/tee_drv.h-297-\ninclude/linux/tee_drv.h:298:extern const struct bus_type tee_bus_type;\ninclude/linux/tee_drv.h-299-\n" }
25/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 33531 output: 47 thoughts: 447 Thoughts: My Analysis of OP-TEE on amd64 Okay, here's what I've got so far. It seems only the `drivers/tee/optee` directory registers devices on the `tee_bus_type`. Makes sense, that's where I'd expect it. But hang on, `drivers/tee/optee` has a dependency on `CONFIG_OPTEE`, and that, in turn, needs `HAVE_ARM_SMCCC`. Hmm, that rings alarm bells immediately because, as I recall, `HAVE_ARM_SMCCC` is not something that's generally available on amd64. Let's just double-check that assumption though. It's best to be thorough. Okay, so I'm looking at the definition of `HAVE_ARM_SMCCC` in `drivers/firmware/smccc/Kconfig`. Yup, it's a boolean, but without a prompt. That means it can only be enabled through a `select` statement. So, who selects it? Let's see... looking at the Kconfigs... `arch/arm/Kconfig` selects it if `CPU_V7`, and `arch/arm64/Kconfig` selects it unconditionally. Okay, that confirms it. Nobody else does. So on amd64 (x86_64), `HAVE_ARM_SMCCC` is effectively impossible to enable. Therefore, since `CONFIG_OPTEE` depends on that, it's pretty clear that `CONFIG_OPTEE` will never be enabled on amd64. That is, unless someone has a very interesting way of getting around the kernel config dependencies! Okay, now hold on, I need to check something else. Let's see, what about `tee_bnxt_fw_load` and `tee_bnxt_copy_coredump`? Where are they used? Oh, right, I've got a grep from earlier... `drivers/net/ethernet/broadcom/bnxt/bnxt.c` and `bnxt_coredump.c`. Let's take a look at those callers and be absolutely certain there are no assumptions there about the availability of OP-TEE. I don't want to miss anything.
26/2	2026/09/24 01:41	tool	read-file	0m Args: { "File": "drivers/net/ethernet/broadcom/bnxt/bnxt.c", "FirstLine": 12750, "LineCount": 30 } Results: { "Contents": "12750:\t\t}\n12751:\t\treturn rc;\n12752:\t}\n12753:\t\n12754:\tstatic int bnxt_fw_reset_via_optee(struct bnxt bp)\n12755:\t{\n12756:\t#ifdef CONFIG_TEE_BNXT_FW\n12757:\t\tint rc = tee_bnxt_fw_load();\n12758:\t\n12759:\t\tif (rc)\n12760:\t\t\tnetdev_err(bp-\u003edev, \"Failed FW reset via OP-TEE, rc=%d\\n\", rc);\n12761:\t\n12762:\t\treturn rc;\n12763:\t#else\n12764:\t\tnetdev_err(bp-\u003edev, \"OP-TEE not supported\\n\");\n12765:\t\treturn -ENODEV;\n12766:\t#endif\n12767:\t}\n12768:\t\n12769:\tstatic int bnxt_try_recover_fw(struct bnxt bp)\n12770:\t{\n12771:\t\tif (bp-\u003efw_health \u0026\u0026 bp-\u003efw_health-\u003estatus_reliable) {\n12772:\t\t\tint retry = 0, rc;\n12773:\t\t\tu32 sts;\n12774:\t\n12775:\t\t\tdo {\n12776:\t\t\t\tsts = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);\n12777:\t\t\t\trc = bnxt_hwrm_poll(bp);\n12778:\t\t\t\tif (!BNXT_FW_IS_BOOTING(sts) \u0026\u0026\n12779:\t\t\t\t !BNXT_FW_IS_RECOVERING(sts))\n" }
27/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 35000 output: 44 thoughts: 36 Thoughts: Here's my thought process, summarized as you requested: Investigating the Call Sites of `bnxt_fw_reset_via_optee` Okay, so I need to understand where this `bnxt_fw_reset_via_optee` function is actually used. My immediate thought is, "Where are the callers?" I need to trace its usage within the codebase. This is standard procedure when I'm trying to understand the control flow and impact of a particular function, especially one that sounds like it deals with a firmware reset, which can be critical for stability. I'm going to look for all instances where this function is called. That's the first step to figuring out its role and context within the broader system. Knowing the call sites will reveal the various paths that trigger this reset mechanism.
28/2	2026/09/24 01:41	tool	grepper	0m Args: { "Expression": "bnxt_fw_reset_via_optee", "PathPrefix": "drivers/net/ethernet/broadcom/bnxt/" } Results: { "Output": "drivers/net/ethernet/broadcom/bnxt/bnxt.c=12723=static int bnxt_hwrm_shutdown_link(struct bnxt bp)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12753-\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c:12754:static int bnxt_fw_reset_via_optee(struct bnxt bp)\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12755-{\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c=12769=static int bnxt_try_recover_fw(struct bnxt bp)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12791-\t\t\tnetdev_warn(bp-\u003edev, \"Firmware recover via OP-TEE requested\\n\");\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c:12792:\t\t\treturn bnxt_fw_reset_via_optee(bp);\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-12793-\t\t}\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c=15407=static void bnxt_reset_all(struct bnxt bp)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-15412-\tif (bp-\u003efw_cap \u0026 BNXT_FW_CAP_ERR_RECOVER_RELOAD) {\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c:15413:\t\tbnxt_fw_reset_via_optee(bp);\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-15414-\t\tbp-\u003efw_reset_timestamp = jiffies;\n" }
29/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 35737 output: 39 thoughts: 55 Thoughts: Okay, here's my interpretation of that thought process, from an expert's perspective: Diving into the bnxt Driver Alright, so `bnxt`... right, that's the Broadcom NetXtreme-C/E PCI ethernet driver. I know it; it's tucked away under `drivers/net/ethernet/broadcom/bnxt/bnxt_en.c`, or something along those lines, in the kernel source. Now, before I get too deep into anything else, the first thing that's critical to know is what type of `bnxt` device we're dealing with here. Is it a NetXtreme-C or an E? The specifics are going to have a huge impact on how things work under the hood. Time to check the device type. Let's see...
30/2	2026/09/24 01:41	tool	grepper	0m Args: { "Expression": "pci_register_driver", "PathPrefix": "drivers/net/ethernet/broadcom/bnxt/" } Results: { "Output": "drivers/net/ethernet/broadcom/bnxt/bnxt.c=17730=static int __init bnxt_init(void)\n--\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-17734-\tbnxt_debug_init();\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c:17735:\terr = pci_register_driver(\u0026bnxt_pci_driver);\ndrivers/net/ethernet/broadcom/bnxt/bnxt.c-17736-\tif (err) {\n" }
31/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 36169 output: 48 thoughts: 39 Thoughts: Here's my take on those thoughts: Dissecting the bnxt Landscape Okay, so `bnxt`... right, that's the driver, the physical PCI network driver specifically for those Broadcom NetXtreme Ethernet cards – `bnxt_en`. Good to have that clearly defined. So, it’s not just any network driver, it's a very specific implementation. Now, that leads me to something else that springs to mind: `bnxt_coredump.c`. It's a key part of the broader picture, and it immediately raises questions about how the driver handles potential failures or critical errors on the hardware. It's obviously dedicated to core dump functionality, but I’d immediately need to drill down and understand the details of that specific implementation. What mechanisms are in place? How does it interact with the hardware and other aspects of the network stack? What are the implications for debugging and diagnosing issues on those systems? Understanding the interaction of the driver with the broader network stack and how it manages potentially critical events is what is important here.
32/2	2026/09/24 01:41	tool	read-file	0m Args: { "File": "drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c", "FirstLine": 585, "LineCount": 25 } Results: { "Contents": " 585:\t}\n 586:\t\n 587:\tint bnxt_get_coredump(struct bnxt bp, u16 dump_type, void buf, u32 dump_len)\n 588:\t{\n 589:\t\tif (dump_type == BNXT_DUMP_CRASH) {\n 590:\t\t\tif (bp-\u003efw_dbg_cap \u0026 DBG_QCAPS_RESP_FLAGS_CRASHDUMP_HOST_DDR)\n 591:\t\t\t\treturn bnxt_copy_crash_dump(bp, buf, dump_len);\n 592:\t#ifdef CONFIG_TEE_BNXT_FW\n 593:\t\t\telse if (bp-\u003efw_dbg_cap \u0026 DBG_QCAPS_RESP_FLAGS_CRASHDUMP_SOC_DDR)\n 594:\t\t\t\treturn tee_bnxt_copy_coredump(buf, 0, dump_len);\n 595:\t#endif\n 596:\t\t\telse\n 597:\t\t\t\treturn -EOPNOTSUPP;\n 598:\t\t} else {\n 599:\t\t\treturn __bnxt_get_coredump(bp, dump_type, buf, dump_len);\n 600:\t\t}\n 601:\t}\n 602:\t\n 603:\tint bnxt_hwrm_get_dump_len(struct bnxt bp, u16 dump_type, u32 dump_len)\n 604:\t{\n 605:\t\tstruct hwrm_dbg_qcfg_output resp;\n 606:\t\tstruct hwrm_dbg_qcfg_input *req;\n 607:\t\tint rc, hdr_len = 0;\n 608:\t\n 609:\t\tif (!(bp-\u003efw_cap \u0026 BNXT_FW_CAP_DBG_QCAPS))\n" }
33/2	2026/09/24 01:41	llm	patch-evaluator	0m Model: gemini-3.8-flash Args: null Results: null Tokens: input: 36964 output: 152 thoughts: 1383 Thoughts: Fuzzing Verdict: Structurally Unreachable Code Okay, let's break this down. From what I can see, `bnxt_get_coredump` is the function of interest, but it's called from within `bnxt_en`, a driver for Broadcom NetXtreme hardware. However, it's also called from another context, which is the driver `tee_bnxt_fw.c`, and that's the key. This `tee_bnxt_fw.c` driver is specifically designed to manage firmware on Broadcom iProc SoCs using OP-TEE. The critical dependencies are: `(ARCH_BCM_IPROC && OPTEE) \|\| (COMPILE_TEST && TEE)`. `ARCH_BCM_IPROC` and `OPTEE` depend on `HAVE_ARM_SMCCC`, which is firmly in the ARM/ARM64 territory. The code uses `tee_client_open_context` and explicitly looks for `TEE_IMPL_ID_OPTEE`, which only the OP-TEE driver provides, which requires the secure OS running on Broadcom iProc/Stingray platform. This is all triggered by a device UUID that is only present when running on that specific hardware configuration. Now, on the target architecture, which is amd64, we have a problem. There's no Broadcom iProc SoC, OP-TEE isn't available because it needs ARM SMCCC, and the Broadcom NetXtreme hardware with OP-TEE firmware loading is vendor-specific and not emulated in standard QEMU or GCE. Even if compiled with `COMPILE_TEST && TEE`, there's no way `tee_bnxt_fw_probe()` would ever successfully probe because the OP-TEE device won't be there, and its UUID can't be matched. Looking at the provided guidelines for when fuzzing isn't worth it, this neatly falls into two categories: 1. "Structurally unreachable hardware: Vendor-specific PCIe switches, SmartNICs, or GPU drivers... requiring physical ASIC/PCIe cards not emulated in standard QEMU." Broadcom BNXT is a SmartNIC and this OP-TEE firmware loader relies on vendor-specific hardware. 2. "Code paths exclusive to architectures other than the target architecture." The driver is conditionally compiled based on ARM-specific features and architectures. Therefore, the code modifications (the memory barrier additions) are all within `tee_bnxt_fw.c`, and given the architecture and hardware constraints, this code is structurally unreachable on amd64. Fuzzing this is a waste of time and resources. In conclusion, the `WorthFuzzing` flag should be set to `false`, the `FocusSymbols` array should be empty, and the `EnableConfigs` array should be empty. We have a solid reason to explain why.
34/2	2026/09/24 01:41	tool	set-results	0m Args: { "EnableConfigs": [], "FocusSymbols": [], "Reasoning": "The patch modifies drivers/firmware/broadcom/tee_bnxt_fw.c, which implements Broadcom BNXT firmware management via OP-TEE. This driver requires Broadcom iProc SoC hardware (ARCH_BCM_IPROC) and OP-TEE (which depends on HAVE_ARM_SMCCC, ARM/ARM64 only). On the target architecture (amd64), OP-TEE and the required Broadcom ASIC/SoC hardware are not present or emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable.", "WorthFuzzing": false } Results: { "EnableConfigs": null, "FocusSymbols": [], "Reasoning": "The patch modifies drivers/firmware/broadcom/tee_bnxt_fw.c, which implements Broadcom BNXT firmware management via OP-TEE. This driver requires Broadcom iProc SoC hardware (ARCH_BCM_IPROC) and OP-TEE (which depends on HAVE_ARM_SMCCC, ARM/ARM64 only). On the target architecture (amd64), OP-TEE and the required Broadcom ASIC/SoC hardware are not present or emulated in standard virtualized environments (QEMU/GCE), making the modified code structurally unreachable.", "WorthFuzzing": false }
35/1	2026/09/24 01:41	action	If	0m Args: { "WorthFuzzing": false } Results: null

LLM Calls Summary:
Total Calls	Total Tokens	Avg Tokens	Total Duration (Seconds)	Avg Duration (Seconds)

Tool Calls Summary:
Total Calls	Total Duration (Seconds)	Avg Duration (Seconds)