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033648652f
RFC4122 defines that fields are stored in network order (big endian), but TF-A stores them in machine order (little endian by default in TF-A). We cannot change the future UUIDs that are already generated, but we can store all the bytes using arrays and modify fiptool to generate the UUIDs with the correct byte order. Change-Id: I97be2d3168d91f4dee7ccfafc533ea55ff33e46f Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <console.h>
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#include <debug.h>
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#include <mmio.h>
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#include <mtk_plat_common.h>
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#include <mtk_sip_svc.h>
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#include <plat_sip_calls.h>
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#include <runtime_svc.h>
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#include <uuid.h>
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/* Mediatek SiP Service UUID */
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DEFINE_SVC_UUID2(mtk_sip_svc_uid,
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0xa42b58f7, 0x6242, 0x7d4d, 0x80, 0xe5,
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0x8f, 0x95, 0x05, 0x00, 0x0f, 0x3d);
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#pragma weak mediatek_plat_sip_handler
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uintptr_t mediatek_plat_sip_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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/*
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* This function handles Mediatek defined SiP Calls */
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uintptr_t mediatek_sip_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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uint32_t ns;
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/* if parameter is sent from SMC32. Clean top 32 bits */
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clean_top_32b_of_param(smc_fid, &x1, &x2, &x3, &x4);
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/* Determine which security state this SMC originated from */
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ns = is_caller_non_secure(flags);
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if (!ns) {
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/* SiP SMC service secure world's call */
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;
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} else {
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/* SiP SMC service normal world's call */
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switch (smc_fid) {
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#if MTK_SIP_SET_AUTHORIZED_SECURE_REG_ENABLE
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case MTK_SIP_SET_AUTHORIZED_SECURE_REG: {
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/* only use ret here */
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uint64_t ret;
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ret = mt_sip_set_authorized_sreg((uint32_t)x1,
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(uint32_t)x2);
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SMC_RET1(handle, ret);
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}
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#endif
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#if MTK_SIP_KERNEL_BOOT_ENABLE
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case MTK_SIP_KERNEL_BOOT_AARCH32:
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boot_to_kernel(x1, x2, x3, x4);
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SMC_RET0(handle);
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#endif
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default:
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/* Do nothing in default case */
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break;
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}
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}
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return mediatek_plat_sip_handler(smc_fid, x1, x2, x3, x4,
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cookie, handle, flags);
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}
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/*
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* This function is responsible for handling all SiP calls from the NS world
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*/
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uintptr_t sip_smc_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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switch (smc_fid) {
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case SIP_SVC_CALL_COUNT:
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/* Return the number of Mediatek SiP Service Calls. */
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SMC_RET1(handle,
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MTK_COMMON_SIP_NUM_CALLS + MTK_PLAT_SIP_NUM_CALLS);
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case SIP_SVC_UID:
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/* Return UID to the caller */
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SMC_UUID_RET(handle, mtk_sip_svc_uid);
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case SIP_SVC_VERSION:
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/* Return the version of current implementation */
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SMC_RET2(handle, MTK_SIP_SVC_VERSION_MAJOR,
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MTK_SIP_SVC_VERSION_MINOR);
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default:
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return mediatek_sip_handler(smc_fid, x1, x2, x3, x4,
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cookie, handle, flags);
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}
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}
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/* Define a runtime service descriptor for fast SMC calls */
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DECLARE_RT_SVC(
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mediatek_sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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NULL,
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sip_smc_handler
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);
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