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| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2018-10-30 12:30:31 +0300 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-11-08 12:04:40 +1100 |
| commit | b8edea50a7b8fba52ec3d8222f09991bea8add85 (patch) | |
| tree | ff5de83af7938eb0f4001a38d57010e890158886 | |
| parent | 1bbd6272a18d6fe3390d4b4200a1a7a566b304fa (diff) | |
| download | qemu-b8edea50a7b8fba52ec3d8222f09991bea8add85.zip qemu-b8edea50a7b8fba52ec3d8222f09991bea8add85.tar.gz qemu-b8edea50a7b8fba52ec3d8222f09991bea8add85.tar.bz2 | |
target/ppc: fix mtmsr instruction for icount
This patch fixes processing of mtmsr instructions in icount mode.
In this mode writing to interrupt/peripheral state is controlled
by can_do_io flag. This flag must be set explicitly before helper
function invocation.
Signed-off-by: Maria Klimushenkova <maria.klimushenkova@ispras.ru>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
| -rw-r--r-- | target/ppc/translate.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/target/ppc/translate.c b/target/ppc/translate.c index c999832..fb18ced 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -4298,11 +4298,17 @@ static void gen_mtmsrd(DisasContext *ctx) * if we enter power saving mode, we will exit the loop * directly from ppc_store_msr */ + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_update_nip(ctx, ctx->base.pc_next); gen_helper_store_msr(cpu_env, cpu_gpr[rS(ctx->opcode)]); /* Must stop the translation as machine state (may have) changed */ /* Note that mtmsr is not always defined as context-synchronizing */ gen_stop_exception(ctx); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_end(); + } } #endif /* !defined(CONFIG_USER_ONLY) */ } @@ -4327,6 +4333,9 @@ static void gen_mtmsr(DisasContext *ctx) * if we enter power saving mode, we will exit the loop * directly from ppc_store_msr */ + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_start(); + } gen_update_nip(ctx, ctx->base.pc_next); #if defined(TARGET_PPC64) tcg_gen_deposit_tl(msr, cpu_msr, cpu_gpr[rS(ctx->opcode)], 0, 32); @@ -4334,6 +4343,9 @@ static void gen_mtmsr(DisasContext *ctx) tcg_gen_mov_tl(msr, cpu_gpr[rS(ctx->opcode)]); #endif gen_helper_store_msr(cpu_env, msr); + if (tb_cflags(ctx->base.tb) & CF_USE_ICOUNT) { + gen_io_end(); + } tcg_temp_free(msr); /* Must stop the translation as machine state (may have) changed */ /* Note that mtmsr is not always defined as context-synchronizing */ |