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cpu-exec: unify icount_decr and tcg_exit_req

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The icount interrupt flag and tcg_exit_req serve almost the same
purpose, let's make them completely the same.

The former TB_EXIT_REQUESTED and TB_EXIT_ICOUNT_EXPIRED cases are
unified, since we can distinguish them from the value of the
interrupt flag.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-01-27 11:25:33 +01:00
parent a1cf5fac2b
commit 1aab16c28a
7 changed files with 71 additions and 85 deletions
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13
translate-common.c
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@ -43,14 +43,11 @@ static void tcg_handle_interrupt(CPUState *cpu, int mask)
return;
}
if (use_icount) {
cpu->icount_decr.u16.high = 0xffff;
if (!cpu->can_do_io
&& (mask & ~old_mask) != 0) {
cpu_abort(cpu, "Raised interrupt while not in I/O function");
}
} else {
cpu->tcg_exit_req = 1;
cpu->icount_decr.u16.high = -1;
if (use_icount &&
!cpu->can_do_io
&& (mask & ~old_mask) != 0) {
cpu_abort(cpu, "Raised interrupt while not in I/O function");
}
}