RISC中关中断应该用原子操作，避免多任务环境造成错误

2026-05-22 21:24:45 +08:00
parent ab11821c0c
commit f957224afd
4 changed files with 14 additions and 4 deletions
@@ -132,7 +132,9 @@ os_port_context_restore:
    lw a0,   0 * 4(sp)
    csrw mepc, a0

-    lw  a0,  2*4(sp)        /* 恢复 MPIE */
+    li t0, 0x1800
+    csrs mstatus, t0
+    lw  a0,  2*4(sp)
    csrs  mstatus, a0

    lw x1,   1 * 4(sp)      /* 返回地址 */