From d8470ad9870910c62f992ab0258bfb86569d04dd Mon Sep 17 00:00:00 2001
From: hev <r@hev.cc>
Date: Mon, 3 Jun 2024 18:38:23 -0600
Subject: [PATCH] HevTask: Add task execute for s390x.

---
 src/arch/s390/hev-task-execute-s390x.s | 24 ++++++++++++++++++++++++
 src/kern/task/hev-task-execute.S       |  4 ++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/arch/s390/hev-task-execute-s390x.s

diff --git a/src/arch/s390/hev-task-execute-s390x.s b/src/arch/s390/hev-task-execute-s390x.s
new file mode 100644
index 0000000..d6ed99a
--- /dev/null
+++ b/src/arch/s390/hev-task-execute-s390x.s
@@ -0,0 +1,24 @@
+/*
+ ============================================================================
+ Name        : hev-task-execute-s390x.s
+ Author      : hev <r@hev.cc>
+ Copyright   : Copyright (c) 2024 everyone.
+ Description :
+ ============================================================================
+ */
+
+    .globl hev_task_execute
+    .type hev_task_execute, @function
+
+hev_task_execute:
+    lg   %r4, 0(%r2)
+    aghi %r4, -256
+    stmg %r14, %r15, 0(%r4)
+    lgr  %r15, %r4
+
+    basr %r14, %r3
+
+    lmg  %r14, %r15, 0(%r15)
+    br   %r14
+
+    .size hev_task_execute, . - hev_task_execute
diff --git a/src/kern/task/hev-task-execute.S b/src/kern/task/hev-task-execute.S
index e2e2ae6..7eddcdc 100644
--- a/src/kern/task/hev-task-execute.S
+++ b/src/kern/task/hev-task-execute.S
@@ -71,6 +71,10 @@
 
 # include "arch/microblaze/hev-task-execute-microblaze.s"
 
+#elif defined(__s390x__)
+
+# include "arch/s390/hev-task-execute-s390x.s"
+
 #else
 
 # error "Unsupported platform!"