888
edits
Changes
add docs for svcCallSecureMonitor.
| 0x7E || svcSetResourceLimitLimitValue || W0=reslimit_handle, W1=[[#LimitableResource]], X2=value || W0=result
| 0x7E || svcSetResourceLimitLimitValue || W0=reslimit_handle, W1=[[#LimitableResource]], X2=value || W0=result
|-
|-
| 0x7F || svcCallSecureMonitor || X0=smc_sub_id, X1,X2,X3,X4,X5,X6,X7=smc_args || X0,X1,X2,X3,X4,X5,X6,X7=result
| 0x7F || [[#svcCallSecureMonitor]] || X0=smc_sub_id, X1,X2,X3,X4,X5,X6,X7=smc_args || X0,X1,X2,X3,X4,X5,X6,X7=result
|}
|}
Returns an enum with value 0-7.
Returns an enum with value 0-7.
== svcCallSecureMonitor ==
<div style="display: inline-block;">
{| class="wikitable" border="1"
|-
! Argument || Type || Name
|-
| (In) X0 || u64 || [[SMC#ID_0|Function ID]]
|-
| (In) X1-X7 || u64 || SMC sub-arguments
|-
| (Out) X0 || [[SMC#Errors|SMC Result]] || Result of SMC
|-
| (Out) X1-X7 || u64 || SMC sub-output
|}
</div>
Takes in a SMC function ID in X0, and arguments for that SMC function in X1-X7.
Passing an invalid SMC function ID or calling from a core other than core 3 will result in a secure monitor panic.
The kernel parses bits 9-15 in the passed SMC function ID (per the ARM SMC calling convention), and when set uses as an indicator to translate a pointer in the associated register (X1-X7) to a physical address. The kernel will translate any address mapped as R-W, other addresses (R--, R-X, or invalid pointers) will be translated as 0/NULL.
Output is returned raw from the Secure Monitor; X0 will be the untranslated SMC result and X1-X7 will contain other SMC output (or be unchanged, depending on the SMC).
== Debugging ==
== Debugging ==