From 0b92a8a1301f157718d374237defb71bc64dbda4 Mon Sep 17 00:00:00 2001
From: Song Gao <gaosong@loongson.cn>
Date: Wed, 14 Jan 2026 15:24:17 +0800
Subject: [PATCH] target/loongarch: Fix exception ADEF/ADEM missing to update
 CSR_BADV

Exception ADEM/ADEF need update CSR_BADV, the value from the virtual
address.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
(cherry picked from commit a7be2e0a3f7d0f35bcc3b17e2b558084efc5d9fe)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
---
 target/loongarch/tcg/tcg_cpu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/loongarch/tcg/tcg_cpu.c b/target/loongarch/tcg/tcg_cpu.c
index c05a06eeb5..8615e03d14 100644
--- a/target/loongarch/tcg/tcg_cpu.c
+++ b/target/loongarch/tcg/tcg_cpu.c
@@ -225,6 +225,7 @@ static void loongarch_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
 {
     CPULoongArchState *env = cpu_env(cs);
 
+    env->CSR_BADV = addr;
     if (access_type == MMU_INST_FETCH) {
         do_raise_exception(env, EXCCODE_ADEF, retaddr);
     } else {