This provides a mechanism for querying which paravirtualized time features are available in this hypervisor. Also add the header file which defines the ABI for the paravirtualized time features we're about to add.
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| @@ -45,6 +45,7 @@ · 44 unmodified lines | |||
| 45 | #define ARM_SMCCC_OWNER_SIP 2 | 45 | #define ARM_SMCCC_OWNER_SIP 2 |
| 46 | #define ARM_SMCCC_OWNER_OEM 3 | 46 | #define ARM_SMCCC_OWNER_OEM 3 |
| 47 | #define ARM_SMCCC_OWNER_STANDARD 4 | 47 | #define ARM_SMCCC_OWNER_STANDARD 4 |
| 48 | #define ARM_SMCCC_OWNER_STANDARD_HYP 5 | ||
| 48 | #define ARM_SMCCC_OWNER_TRUSTED_APP 48 | 49 | #define ARM_SMCCC_OWNER_TRUSTED_APP 48 |
| 49 | #define ARM_SMCCC_OWNER_TRUSTED_APP_END 49 | 50 | #define ARM_SMCCC_OWNER_TRUSTED_APP_END 49 |
| 50 | #define ARM_SMCCC_OWNER_TRUSTED_OS 50 | 51 | #define ARM_SMCCC_OWNER_TRUSTED_OS 50 |
| @@ -318,5 +319,18 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, · 267 unmodified lines | |||
| 318 | #define SMCCC_RET_NOT_SUPPORTED -1 | 319 | #define SMCCC_RET_NOT_SUPPORTED -1 |
| 319 | #define SMCCC_RET_NOT_REQUIRED -2 | 320 | #define SMCCC_RET_NOT_REQUIRED -2 |
| 320 | 321 | ||
| 322 | /* Paravirtualised time calls (defined by ARM DEN0057A) */ | ||
| 323 | #define ARM_SMCCC_HV_PV_TIME_FEATURES \ | ||
| 324 | ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ | ||
| 325 | ARM_SMCCC_SMC_64, \ | ||
| 326 | ARM_SMCCC_OWNER_STANDARD_HYP, \ | ||
| 327 | 0x20) | ||
| 328 | |||
| 329 | #define ARM_SMCCC_HV_PV_TIME_ST \ | ||
| 330 | ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, \ | ||
| 331 | ARM_SMCCC_SMC_64, \ | ||
| 332 | ARM_SMCCC_OWNER_STANDARD_HYP, \ | ||
| 333 | 0x21) | ||
| 334 | |||
| 321 | #endif /*__ASSEMBLY__*/ | 335 | #endif /*__ASSEMBLY__*/ |
| 322 | #endif /*__LINUX_ARM_SMCCC_H*/ | 336 | #endif /*__LINUX_ARM_SMCCC_H*/ |