SPL services

spl:

Cmd	Name	Notes
0	#GetConfig
1
2	#KeyGen0
3
4	Aes128Ctr
5	#SetConfig
7
9
10
11	#GetDevunitFlag
12	KeyGen1
13	#EncDec0
14	KeyGen2
15
16
17	EncDec1
18	EncDec2
19
20
21
22
23	GetSplWaitEvent

GetConfig

Takes an input word (ConfigItem), and returns a u64 with the config params.

ConfigItem	Name
2	Memory configuration.
5	HardwareType (0=Icosa, 1=Copper)
8	64bit DeviceId with byte7 clear.
11	Allow skipping RSA signatures on NRR.
13	Battery profile?

Output from this when used by NIM must match the set:cal DeviceId with byte7 cleared, otherwise NIM will panic.

RO checks id11, if set then skipping NRR rsa signatures is allowed.

KeyGen0

Takes 16-bytes as input and two u32s. Outputs random-looking 16-bytes.

Same input gives same output. Output changes when system is rebooted.

SetConfig

Takes two input words, a ConfigItem and the value to set.

ConfigItem	Name
13	Battery profile?

GetDevunitFlag

No input params.

Returns an u8 flag for whether the system is devunit. Output flag is 0 on retail.

EncDec0

Last SPL cmd used by SSL-sysmodule for TLS client-privk.