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-rw-r--r--src/arch/riscv/trap_handler.c6
-rw-r--r--src/arch/riscv/trap_util.S19
2 files changed, 10 insertions, 15 deletions
diff --git a/src/arch/riscv/trap_handler.c b/src/arch/riscv/trap_handler.c
index 842e3eab3b..288b05d1d1 100644
--- a/src/arch/riscv/trap_handler.c
+++ b/src/arch/riscv/trap_handler.c
@@ -69,7 +69,7 @@ void handle_supervisor_call(trapframe *tf) {
}
tf->gpr[10] = returnValue;
write_csr(mepc, read_csr(mepc) + 4);
- asm volatile("j supervisor_call_return");
+ asm volatile("j trap_return");
}
static const char *const exception_names[] = {
@@ -264,7 +264,7 @@ void handle_misaligned_load(trapframe *tf) {
// return to where we came from
write_csr(mepc, read_csr(mepc) + 4);
- asm volatile("j machine_call_return");
+ asm volatile("j trap_return");
}
void handle_misaligned_store(trapframe *tf) {
@@ -292,5 +292,5 @@ void handle_misaligned_store(trapframe *tf) {
// return to where we came from
write_csr(mepc, read_csr(mepc) + 4);
- asm volatile("j machine_call_return");
+ asm volatile("j trap_return");
}
diff --git a/src/arch/riscv/trap_util.S b/src/arch/riscv/trap_util.S
index 5582a0770c..98db85c4cb 100644
--- a/src/arch/riscv/trap_util.S
+++ b/src/arch/riscv/trap_util.S
@@ -140,15 +140,10 @@ trap_entry:
save_tf
move a0,sp
jal trap_handler
- .global supervisor_call_return
-supervisor_call_return:
- csrr a0, mscratch
- restore_regs
- # go back into supervisor call
- mret
- .global machine_call_return
-machine_call_return:
- csrr a0, mscratch
- restore_regs
- # go back into machine call
- mret
+
+ .global trap_return
+trap_return:
+ csrr a0, mscratch
+ restore_regs
+ # go back to the previous mode
+ mret