Difference between revisions of "Secure Monitor"
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The secure monitor provides two top level handlers of which each provides a range of sub handlers. | The secure monitor provides two top level handlers of which each provides a range of sub handlers. | ||
| − | Secure Monitor Calls follow the ARM SMC calling convention: | + | Secure Monitor Calls follow the ARM SMC calling convention up to a small change: |
{| class=wikitable | {| class=wikitable | ||
! Bit number || Bit mask || Description | ! Bit number || Bit mask || Description | ||
| Line 15: | Line 15: | ||
| 23-16 || 0x00FF0000 || Must be zero. | | 23-16 || 0x00FF0000 || Must be zero. | ||
|- | |- | ||
| − | | 15-0 || | + | | 15-8 || 0x0000FF00 || Argument type. This is different from the ARM SMC calling convention. |
| + | |- | ||
| + | | 7-0 || 0x000000FF || Function number within the range call type. | ||
|} | |} | ||
| + | |||
| + | If bit ''n'' is set in the argument type then parameter X''n'' is treated as a pointer and the kernel will setup address translation for it in [[SVC#svcCallSecureMonitor|svcCallSecureMonitor]]. | ||
== Id 0 == | == Id 0 == | ||
Revision as of 04:16, 12 July 2017
Secure Monitor Calls
The secure monitor provides two top level handlers of which each provides a range of sub handlers.
Secure Monitor Calls follow the ARM SMC calling convention up to a small change:
| Bit number | Bit mask | Description |
|---|---|---|
| 31 | 0x80000000 | Set to 0 means Yielding Call; Set to 1 means Fast Call. |
| 30 | 0x40000000 | Set to 0 means SMC32 convention; Set to 1 means SMC64. |
| 29-24 | 0x3F000000 | Service Call ranges. |
| 23-16 | 0x00FF0000 | Must be zero. |
| 15-8 | 0x0000FF00 | Argument type. This is different from the ARM SMC calling convention. |
| 7-0 | 0x000000FF | Function number within the range call type. |
If bit n is set in the argument type then parameter Xn is treated as a pointer and the kernel will setup address translation for it in svcCallSecureMonitor.
Id 0
Cryptography related functions.
| Sub-Id | Name | In | Out |
|---|---|---|---|
| 0xC3000401 | SetConfig | ||
| 0xC3000002 | GetConfig (Same as Id 1 Sub-Id 4.) | ||
| 0xC3000003 | CheckStatus_5_9_F_10 | ||
| 0xC3000404 | GetResult_5_9_F_10 | ||
| 0xC3000E05 | ExpMod | ||
| 0xC3000006 | PrngX931 (Same as Id 1 Sub-Id 5.) | ||
| 0xC3000007 | KeygenAndSealX | ||
| 0xC3000008 | SetKeyslotFromXY | ||
| 0xC3000009 | SymmetricCrypto | ||
| 0xC300000A | KeygenA | ||
| 0xC300040B | CMAC | ||
| 0xC300100C | ImportParamsFor10 | ||
| 0xC300100D | DecryptExpModParams | ||
| 0xC300100E | ImportParamsForF | ||
| 0xC300060F | ExpMod | ||
| 0xC3000610 | ExpMod | ||
| 0xC3000011 | SetKeyslotFromZ | ||
| 0xC3000012 | KeygenAndSealZ |
Id 1
General and power related functions.
| Sub-Id | Name | In | Out |
|---|---|---|---|
| 0xC4000001 | CPU_SUSPEND (oyasumi) | ||
| 0x84000002 | CPU_OFF | ||
| 0xC4000003 | CPU_ON | ||
| 0xC3000004 | GetConfig (Same as Id 0 Sub-Id 2.) | ||
| 0xC3000005 | PrngX931 (Same as Id 0 Sub-Id 6.) | ||
| 0xC3000006 | Panic | ||
| 0xC3000007 | |||
| 0xC3000008 | ReadWriteRegister |