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tcg/tci: Add support for fence

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Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20160714202026.9727-11-bobby.prani@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Pranith Kumar 2016-07-14 16:20:22 -04:00 committed by Richard Henderson
parent f8f03b3707
commit a1e69e2f81
2 changed files with 7 additions and 0 deletions
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3
tcg/tci/tcg-target.inc.c
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@ -255,6 +255,7 @@ static const TCGTargetOpDef tcg_target_op_defs[] = {
{ INDEX_op_bswap32_i32, { R, R } },
#endif
{ INDEX_op_mb, { } },
{ -1 },
};
@ -800,6 +801,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
}
tcg_out_i(s, *args++);
break;
case INDEX_op_mb:
break;
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */

4
tci.c
View File

@ -1236,6 +1236,10 @@ uintptr_t tcg_qemu_tb_exec(CPUArchState *env, uint8_t *tb_ptr)
tcg_abort();
}
break;
case INDEX_op_mb:
/* Ensure ordering for all kinds */
smp_mb();
break;
default:
TODO();
break;