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| author | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2012-01-10 10:33:37 +0100 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2012-01-12 13:54:17 +0100 |
| commit | 9f6113c7e65a98a88bb95ff5fd8679fbb28f18d6 (patch) | |
| tree | d7ccc802aa24a50cac8dbc2f5bcf8140a477d3fa | |
| parent | 5818dee572deabb1e75a0901b43caa81fb30f419 (diff) | |
| download | focaccia-qemu-9f6113c7e65a98a88bb95ff5fd8679fbb28f18d6.tar.gz focaccia-qemu-9f6113c7e65a98a88bb95ff5fd8679fbb28f18d6.zip | |
microblaze: Break the tb at memory barriers
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
| -rw-r--r-- | target-microblaze/translate.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c index 180ac84f06..96ce2ece51 100644 --- a/target-microblaze/translate.c +++ b/target-microblaze/translate.c @@ -1249,12 +1249,22 @@ static void dec_bcc(DisasContext *dc) static void dec_br(DisasContext *dc) { - unsigned int dslot, link, abs; + unsigned int dslot, link, abs, mbar; int mem_index = cpu_mmu_index(dc->env); dslot = dc->ir & (1 << 20); abs = dc->ir & (1 << 19); link = dc->ir & (1 << 18); + + /* Memory barrier. */ + mbar = (dc->ir >> 16) & 31; + if (mbar == 2 && dc->imm == 4) { + LOG_DIS("mbar %d\n", dc->rd); + /* Break the TB. */ + dc->cpustate_changed = 1; + return; + } + LOG_DIS("br%s%s%s%s imm=%x\n", abs ? "a" : "", link ? "l" : "", dc->type_b ? "i" : "", dslot ? "d" : "", |