diff options
| author |   Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2011-01-17 23:00:08 +0100 |
|---|---|---|
| committer | Edgar E. Iglesias <edgar.iglesias@gmail.com> | 2011-01-18 12:32:46 +0100 |
| commit | 55807224561b9ac278bb65960b6c12666fd30db9 (patch) | |
| tree | 097aae5a20872b3bfd59a78038e823a706df92cd /target-mips | |
| parent | mips: Expire late timers when reading cp0_count (diff) | |
| download | qemu-kvm-55807224561b9ac278bb65960b6c12666fd30db9.tar.gz qemu-kvm-55807224561b9ac278bb65960b6c12666fd30db9.tar.bz2 qemu-kvm-55807224561b9ac278bb65960b6c12666fd30db9.zip | |
mips: Break TBs after mfc0_count
Break the TB after reading the count register. This makes it
possible to take timer interrupts immediately after a read of
a possibly expired timer.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index cce77be0d..187930e3d 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -3410,8 +3410,10 @@ static void gen_mfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int s gen_helper_mfc0_count(arg); if (use_icount) { gen_io_end(); - ctx->bstate = BS_STOP; } + /* Break the TB to be able to take timer interrupts immediately + after reading count. */ + ctx->bstate = BS_STOP; rn = "Count"; break; /* 6,7 are implementation dependent */ @@ -4581,8 +4583,10 @@ static void gen_dmfc0 (CPUState *env, DisasContext *ctx, TCGv arg, int reg, int gen_helper_mfc0_count(arg); if (use_icount) { gen_io_end(); - ctx->bstate = BS_STOP; } + /* Break the TB to be able to take timer interrupts immediately + after reading count. */ + ctx->bstate = BS_STOP; rn = "Count"; break; /* 6,7 are implementation dependent */ |