Child thread.kuap value is inherited from the parent in copy_thread_tls. We
still
need to make sure when the child returns from a fork in the kernel we start
with the kernel
default AMR value.
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
---
arch/powerpc/kernel/process.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 78eedf0b5c30..fc4cc32d4726 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1698,6 +1698,11 @@ int copy_thread_tls(unsigned long clone_flags, unsigned
long usp,
p->thread.tidr = 0;
#endif
+ /*
+ * Run with the current AMR value of the kernel
+ */
+ kregs->kuap = AMR_KUAP_BLOCKED;
+ kregs->kuep = AMR_KUEP_BLOCKED;
kregs->nip = ppc_function_entry(f);
return 0;
}
--
2.25.3
