diff options
Diffstat (limited to 'arch/x86/kernel/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 19d05d39a81d..de942b038815 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -198,6 +198,15 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg, return ret; } +static void pkru_flush_thread(void) +{ + /* + * If PKRU is enabled the default PKRU value has to be loaded into + * the hardware right here (similar to context switch). + */ + pkru_write_default(); +} + void flush_thread(void) { struct task_struct *tsk = current; @@ -206,6 +215,7 @@ void flush_thread(void) memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array)); fpu_flush_thread(); + pkru_flush_thread(); } void disable_TSC(void) |