hkeyset_restore_userkeys Kernel Service
Purpose
Restores the previous user-memory access.
Syntax
#include <sys/skeys.h>kerrno_t hkeyset_restore_userkeys (oldset)
hkeyset_t oldset;
hkeyset_t oldset;
Parameters
| Item | Description |
|---|---|
| oldset | Specifies the previous hardware keyset returned by the hkeyset_update_userkeys kernel service. |
Description
The hkeyset_restore_userkeys kernel service is a specialized protection gate that restores only the user-mode portion of the current hardware keyset. This is normally done by the kernel after this kernel service accesses user memory.
Execution Environment
The hkeyset_restore_userkeys kernel service can be called from the process environment only.
Return Values
| Item | Description |
|---|---|
| 0 | Indicates a successful completion. |
| EINVAL_HKEYSET_RESTORE_USERKEYS | Indicates that the execution environment is not valid. |