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[Qemu-devel] [PATCH] target-xtensa: add window overflow check to L32E/S3
From: |
Max Filippov |
Subject: |
[Qemu-devel] [PATCH] target-xtensa: add window overflow check to L32E/S32E |
Date: |
Sun, 19 Jul 2015 10:13:17 +0300 |
Despite L32E and S32E primary use is for window underflow and overflow
exception handlers they are just normal instructions, and thus need to
check for window overflow.
Cc: address@hidden
Signed-off-by: Max Filippov <address@hidden>
---
target-xtensa/translate.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c
index f2118c2..7a074e0 100644
--- a/target-xtensa/translate.c
+++ b/target-xtensa/translate.c
@@ -1943,7 +1943,8 @@ static void disas_xtensa_insn(CPUXtensaState *env,
DisasContext *dc)
switch (OP2) {
case 0: /*L32E*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- if (gen_check_privilege(dc)) {
+ if (gen_check_privilege(dc) &&
+ gen_window_check2(dc, RRR_S, RRR_T)) {
TCGv_i32 addr = tcg_temp_new_i32();
tcg_gen_addi_i32(addr, cpu_R[RRR_S],
(0xffffffc0 | (RRR_R << 2)));
@@ -1954,7 +1955,8 @@ static void disas_xtensa_insn(CPUXtensaState *env,
DisasContext *dc)
case 4: /*S32E*/
HAS_OPTION(XTENSA_OPTION_WINDOWED_REGISTER);
- if (gen_check_privilege(dc)) {
+ if (gen_check_privilege(dc) &&
+ gen_window_check2(dc, RRR_S, RRR_T)) {
TCGv_i32 addr = tcg_temp_new_i32();
tcg_gen_addi_i32(addr, cpu_R[RRR_S],
(0xffffffc0 | (RRR_R << 2)));
--
1.8.1.4
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