diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2015-07-19 10:02:37 +0300 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2015-10-21 21:27:31 +0300 |
| commit | f822b7e497fa6a662094b491f86441015f363362 (patch) | |
| tree | ee46e616a2d0cf8c7e1956041ed3a88f2487003b /target-xtensa/translate.c | |
| parent | 8bfaa25fce2c22060a17501980943538801056de (diff) | |
target-xtensa: add window overflow check to L32E/S32E
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: qemu-stable@nongnu.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'target-xtensa/translate.c')
| -rw-r--r-- | target-xtensa/translate.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/target-xtensa/translate.c b/target-xtensa/translate.c index fda91b7e5d..1349d2f3da 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))); |