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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194/* 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 0x3F#define ARM_SMCCC_OWNER_SHIFT 24
#define ARM_SMCCC_FUNC_MASK 0xFFFF
#define ARM_SMCCC_IS_FAST_CALL(smc_val) \ ((smc_val) & (ARM_SMCCC_FAST_CALL << ARM_SMCCC_TYPE_SHIFT))#define ARM_SMCCC_IS_64(smc_val) \ ((smc_val) & (ARM_SMCCC_SMC_64 << ARM_SMCCC_CALL_CONV_SHIFT))#define ARM_SMCCC_FUNC_NUM(smc_val) ((smc_val) & ARM_SMCCC_FUNC_MASK)#define ARM_SMCCC_OWNER_NUM(smc_val) \ (((smc_val) >> ARM_SMCCC_OWNER_SHIFT) & ARM_SMCCC_OWNER_MASK)
#define ARM_SMCCC_CALL_VAL(type, calling_convention, owner, func_num) \ (((type) << ARM_SMCCC_TYPE_SHIFT) | \ ((calling_convention) << ARM_SMCCC_CALL_CONV_SHIFT) | \ (((owner) & ARM_SMCCC_OWNER_MASK) << ARM_SMCCC_OWNER_SHIFT) | \ ((func_num) & ARM_SMCCC_FUNC_MASK))
#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 0xff01
#define ARM_SMCCC_QUIRK_NONE 0#define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */
#define ARM_SMCCC_VERSION_1_0 0x10000#define ARM_SMCCC_VERSION_1_1 0x10001#define ARM_SMCCC_VERSION_1_2 0x10002#define ARM_SMCCC_VERSION_1_3 0x10003
#define ARM_SMCCC_1_3_SVE_HINT 0x10000
#define ARM_SMCCC_VERSION_FUNC_ID \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 0)
#define ARM_SMCCC_ARCH_FEATURES_FUNC_ID \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 1)
#define ARM_SMCCC_ARCH_SOC_ID \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 2)
#define ARM_SMCCC_ARCH_WORKAROUND_1 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 0x8000)
#define ARM_SMCCC_ARCH_WORKAROUND_2 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 0x7fff)
#define ARM_SMCCC_ARCH_WORKAROUND_3 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ 0, 0x3fff)
#define ARM_SMCCC_VENDOR_HYP_CALL_UID_FUNC_ID \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_VENDOR_HYP, \ ARM_SMCCC_FUNC_QUERY_CALL_UID)
/* KVM UID value: 28b46fb6-2ec5-11e9-a9ca-4b564d003a74 */#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_0 0xb66fb428U#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_1 0xe911c52eU#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_2 0x564bcaa9U#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_3 0x743a004dU
/* 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 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_VENDOR_HYP, \ ARM_SMCCC_KVM_FUNC_FEATURES)
#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 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_VENDOR_HYP, \ ARM_SMCCC_KVM_FUNC_PTP)
/* 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 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_64, \ ARM_SMCCC_OWNER_STANDARD_HYP, \ 0x20)
#define ARM_SMCCC_HV_PV_TIME_ST \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_64, \ ARM_SMCCC_OWNER_STANDARD_HYP, \ 0x21)
/* TRNG entropy source calls (defined by ARM DEN0098) */#define ARM_SMCCC_TRNG_VERSION \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_STANDARD, \ 0x50)
#define ARM_SMCCC_TRNG_FEATURES \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_STANDARD, \ 0x51)
#define ARM_SMCCC_TRNG_GET_UUID \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_STANDARD, \ 0x52)
#define ARM_SMCCC_TRNG_RND32 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_32, \ ARM_SMCCC_OWNER_STANDARD, \ 0x53)
#define ARM_SMCCC_TRNG_RND64 \ ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ ARM_SMCCC_SMC_64, \ ARM_SMCCC_OWNER_STANDARD, \ 0x53)
/* * Return codes defined in ARM DEN 0070A * ARM DEN 0070A 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*/