GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/services/std_svc/std_svc_setup.c

@@ -0,0 +1,246 @@
+/*
+ * Copyright (c) 2014-2023, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+#include <stdint.h>
+
+#include <common/debug.h>
+#include <common/runtime_svc.h>
+#include <lib/el3_runtime/cpu_data.h>
+#include <lib/pmf/pmf.h>
+#include <lib/psci/psci.h>
+#include <lib/runtime_instr.h>
+#include <services/drtm_svc.h>
+#include <services/errata_abi_svc.h>
+#include <services/pci_svc.h>
+#include <services/rmmd_svc.h>
+#include <services/sdei.h>
+#include <services/spm_mm_svc.h>
+#include <services/spmc_svc.h>
+#include <services/spmd_svc.h>
+#include <services/std_svc.h>
+#include <services/trng_svc.h>
+#include <smccc_helpers.h>
+#include <tools_share/uuid.h>
+
+/* Standard Service UUID */
+static uuid_t arm_svc_uid = {
+	{0x5b, 0x90, 0x8d, 0x10},
+	{0x63, 0xf8},
+	{0xe8, 0x47},
+	0xae, 0x2d,
+	{0xc0, 0xfb, 0x56, 0x41, 0xf6, 0xe2}
+};
+
+/* Setup Standard Services */
+static int32_t std_svc_setup(void)
+{
+	uintptr_t svc_arg;
+	int ret = 0;
+
+	svc_arg = get_arm_std_svc_args(PSCI_FID_MASK);
+	assert(svc_arg);
+
+	/*
+	 * PSCI is one of the specifications implemented as a Standard Service.
+	 * The `psci_setup()` also does EL3 architectural setup.
+	 */
+	if (psci_setup((const psci_lib_args_t *)svc_arg) != PSCI_E_SUCCESS) {
+		ret = 1;
+	}
+
+#if SPM_MM
+	if (spm_mm_setup() != 0) {
+		ret = 1;
+	}
+#endif
+
+#if defined(SPD_spmd)
+	if (spmd_setup() != 0) {
+		ret = 1;
+	}
+#endif
+
+#if ENABLE_RME
+	if (rmmd_setup() != 0) {
+		ret = 1;
+	}
+#endif
+
+#if SDEI_SUPPORT
+	/* SDEI initialisation */
+	sdei_init();
+#endif
+
+#if TRNG_SUPPORT
+	/* TRNG initialisation */
+	trng_setup();
+#endif /* TRNG_SUPPORT */
+
+#if DRTM_SUPPORT
+	if (drtm_setup() != 0) {
+		ret = 1;
+	}
+#endif /* DRTM_SUPPORT */
+
+	return ret;
+}
+
+/*
+ * Top-level Standard Service SMC handler. This handler will in turn dispatch
+ * calls to PSCI SMC handler
+ */
+static uintptr_t std_svc_smc_handler(uint32_t smc_fid,
+			     u_register_t x1,
+			     u_register_t x2,
+			     u_register_t x3,
+			     u_register_t x4,
+			     void *cookie,
+			     void *handle,
+			     u_register_t flags)
+{
+	if (((smc_fid >> FUNCID_CC_SHIFT) & FUNCID_CC_MASK) == SMC_32) {
+		/* 32-bit SMC function, clear top parameter bits */
+
+		x1 &= UINT32_MAX;
+		x2 &= UINT32_MAX;
+		x3 &= UINT32_MAX;
+		x4 &= UINT32_MAX;
+	}
+
+	/*
+	 * Dispatch PSCI calls to PSCI SMC handler and return its return
+	 * value
+	 */
+	if (is_psci_fid(smc_fid)) {
+		uint64_t ret;
+
+#if ENABLE_RUNTIME_INSTRUMENTATION
+
+		/*
+		 * Flush cache line so that even if CPU power down happens
+		 * the timestamp update is reflected in memory.
+		 */
+		PMF_WRITE_TIMESTAMP(rt_instr_svc,
+		    RT_INSTR_ENTER_PSCI,
+		    PMF_CACHE_MAINT,
+		    get_cpu_data(cpu_data_pmf_ts[CPU_DATA_PMF_TS0_IDX]));
+#endif
+
+		ret = psci_smc_handler(smc_fid, x1, x2, x3, x4,
+		    cookie, handle, flags);
+
+#if ENABLE_RUNTIME_INSTRUMENTATION
+		PMF_CAPTURE_TIMESTAMP(rt_instr_svc,
+		    RT_INSTR_EXIT_PSCI,
+		    PMF_NO_CACHE_MAINT);
+#endif
+
+		SMC_RET1(handle, ret);
+	}
+
+#if SPM_MM
+	/*
+	 * Dispatch SPM calls to SPM SMC handler and return its return
+	 * value
+	 */
+	if (is_spm_mm_fid(smc_fid)) {
+		return spm_mm_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
+					  handle, flags);
+	}
+#endif
+
+#if defined(SPD_spmd)
+	/*
+	 * Dispatch FFA calls to the FFA SMC handler implemented by the SPM
+	 * dispatcher and return its return value
+	 */
+	if (is_ffa_fid(smc_fid)) {
+		return spmd_ffa_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
+					    handle, flags);
+	}
+#endif
+
+#if SDEI_SUPPORT
+	if (is_sdei_fid(smc_fid)) {
+		return sdei_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
+				flags);
+	}
+#endif
+
+#if TRNG_SUPPORT
+	if (is_trng_fid(smc_fid)) {
+		return trng_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
+				flags);
+	}
+#endif /* TRNG_SUPPORT */
+
+#if ERRATA_ABI_SUPPORT
+	if (is_errata_fid(smc_fid)) {
+		return errata_abi_smc_handler(smc_fid, x1, x2, x3, x4, cookie,
+					      handle, flags);
+	}
+#endif /* ERRATA_ABI_SUPPORT */
+
+#if ENABLE_RME
+
+	if (is_rmmd_el3_fid(smc_fid)) {
+		return rmmd_rmm_el3_handler(smc_fid, x1, x2, x3, x4, cookie,
+					    handle, flags);
+	}
+
+	if (is_rmi_fid(smc_fid)) {
+		return rmmd_rmi_handler(smc_fid, x1, x2, x3, x4, cookie,
+					handle, flags);
+	}
+#endif
+
+#if SMC_PCI_SUPPORT
+	if (is_pci_fid(smc_fid)) {
+		return pci_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
+				       flags);
+	}
+#endif
+
+#if DRTM_SUPPORT
+	if (is_drtm_fid(smc_fid)) {
+		return drtm_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
+					flags);
+	}
+#endif /* DRTM_SUPPORT */
+
+	switch (smc_fid) {
+	case ARM_STD_SVC_CALL_COUNT:
+		/*
+		 * Return the number of Standard Service Calls. PSCI is the only
+		 * standard service implemented; so return number of PSCI calls
+		 */
+		SMC_RET1(handle, PSCI_NUM_CALLS);
+
+	case ARM_STD_SVC_UID:
+		/* Return UID to the caller */
+		SMC_UUID_RET(handle, arm_svc_uid);
+
+	case ARM_STD_SVC_VERSION:
+		/* Return the version of current implementation */
+		SMC_RET2(handle, STD_SVC_VERSION_MAJOR, STD_SVC_VERSION_MINOR);
+
+	default:
+		VERBOSE("Unimplemented Standard Service Call: 0x%x \n", smc_fid);
+		SMC_RET1(handle, SMC_UNK);
+	}
+}
+
+/* Register Standard Service Calls as runtime service */
+DECLARE_RT_SVC(
+		std_svc,
+
+		OEN_STD_START,
+		OEN_STD_END,
+		SMC_TYPE_FAST,
+		std_svc_setup,
+		std_svc_smc_handler
+);