/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright ( c ) 2015 , Linaro Limited #ifndef __LINUX_ARM_SMCCC_H#define __LINUX_ARM_SMCCC_H#include <linux/const .h>/* * This file provides common defines for ARM SMC Calling Convention as * specified in * https : //developer.arm.com/docs/den0028/latest * * This code is up - to - date with version DEN 0028 C #define ARM_SMCCC_STD_CALL _AC(0 ,U)#define ARM_SMCCC_FAST_CALL _AC(1 ,U)#define ARM_SMCCC_TYPE_SHIFT 31 #define ARM_SMCCC_SMC_32 0 #define ARM_SMCCC_SMC_64 1 #define ARM_SMCCC_CALL_CONV_SHIFT 30 #define ARM_SMCCC_OWNER_MASK 0 x3F#define ARM_SMCCC_OWNER_SHIFT 24 #define ARM_SMCCC_FUNC_MASK 0 xFFFF#define ARM_SMCCC_IS_FAST_CALL(smc_val) \#define ARM_SMCCC_IS_64(smc_val) \#define ARM_SMCCC_FUNC_NUM(smc_val) ((smc_val) & ARM_SMCCC_FUNC_MASK)#define ARM_SMCCC_OWNER_NUM(smc_val) \#define ARM_SMCCC_CALL_VAL(type, calling_convention, owner, func_num) \#define ARM_SMCCC_OWNER_ARCH 0 #define ARM_SMCCC_OWNER_CPU 1 #define ARM_SMCCC_OWNER_SIP 2 #define ARM_SMCCC_OWNER_OEM 3 #define ARM_SMCCC_OWNER_STANDARD 4 #define ARM_SMCCC_OWNER_STANDARD_HYP 5 #define ARM_SMCCC_OWNER_VENDOR_HYP 6 #define ARM_SMCCC_OWNER_TRUSTED_APP 48 #define ARM_SMCCC_OWNER_TRUSTED_APP_END 49 #define ARM_SMCCC_OWNER_TRUSTED_OS 50 #define ARM_SMCCC_OWNER_TRUSTED_OS_END 63 #define ARM_SMCCC_FUNC_QUERY_CALL_UID 0 xff01#define ARM_SMCCC_QUIRK_NONE 0 #define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */ #define ARM_SMCCC_VERSION_1_0 0 x10000#define ARM_SMCCC_VERSION_1_1 0 x10001#define ARM_SMCCC_VERSION_1_2 0 x10002#define ARM_SMCCC_VERSION_1_3 0 x10003#define ARM_SMCCC_1_3_SVE_HINT 0 x10000#define ARM_SMCCC_VERSION_FUNC_ID \0 , 0 )#define ARM_SMCCC_ARCH_FEATURES_FUNC_ID \0 , 1 )#define ARM_SMCCC_ARCH_SOC_ID \0 , 2 )#define ARM_SMCCC_ARCH_WORKAROUND_1 \0 , 0 x8000)#define ARM_SMCCC_ARCH_WORKAROUND_2 \0 , 0 x7fff)#define ARM_SMCCC_ARCH_WORKAROUND_3 \0 , 0 x3fff)#define ARM_SMCCC_VENDOR_HYP_CALL_UID_FUNC_ID \/* KVM UID value: 28b46fb6-2ec5-11e9-a9ca-4b564d003a74 */ #define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_0 0 xb66fb428U#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_1 0 xe911c52eU#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_2 0 x564bcaa9U#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_3 0 x743a004dU/* KVM "vendor specific" services */ #define ARM_SMCCC_KVM_FUNC_FEATURES 0 #define ARM_SMCCC_KVM_FUNC_PTP 1 #define ARM_SMCCC_KVM_FUNC_FEATURES_2 127 #define ARM_SMCCC_KVM_NUM_FUNCS 128 #define ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID \#define SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED 1 /* * ptp_kvm is a feature used for time sync between vm and host . * ptp_kvm module in guest kernel will get service from host using * this hypercall ID . #define ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID \/* ptp_kvm counter type ID */ #define KVM_PTP_VIRT_COUNTER 0 #define KVM_PTP_PHYS_COUNTER 1 /* Paravirtualised time calls (defined by ARM DEN0057A) */ #define ARM_SMCCC_HV_PV_TIME_FEATURES \0 x20)#define ARM_SMCCC_HV_PV_TIME_ST \0 x21)/* TRNG entropy source calls (defined by ARM DEN0098) */ #define ARM_SMCCC_TRNG_VERSION \0 x50)#define ARM_SMCCC_TRNG_FEATURES \0 x51)#define ARM_SMCCC_TRNG_GET_UUID \0 x52)#define ARM_SMCCC_TRNG_RND32 \0 x53)#define ARM_SMCCC_TRNG_RND64 \0 x53)/* * Return codes defined in ARM DEN 0070 A * ARM DEN 0070 A is now merged / consolidated into ARM DEN 0028 C #define SMCCC_RET_SUCCESS 0 #define SMCCC_RET_NOT_SUPPORTED -1 #define SMCCC_RET_NOT_REQUIRED -2 #define SMCCC_RET_INVALID_PARAMETER -3 #endif /*__LINUX_ARM_SMCCC_H*/
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