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| author | Anthony Liguori | 2011-10-24 17:51:12 +0200 |
|---|---|---|
| committer | Anthony Liguori | 2011-10-24 17:51:12 +0200 |
| commit | 952e849c150b4f1b89f8728cba00f925c1d6e75b (patch) | |
| tree | 93e950b81e84d1d20a915d8b1da5c75d3911f553 /exec-all.h | |
| parent | Add stdio char device on windows (diff) | |
| parent | simplify main loop functions (diff) | |
| download | qemu-952e849c150b4f1b89f8728cba00f925c1d6e75b.tar.gz qemu-952e849c150b4f1b89f8728cba00f925c1d6e75b.tar.xz qemu-952e849c150b4f1b89f8728cba00f925c1d6e75b.zip | |
Merge remote-tracking branch 'bonzini/split-main-loop-for-anthony' into staging
Diffstat (limited to 'exec-all.h')
| -rw-r--r-- | exec-all.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/exec-all.h b/exec-all.h index 1120f84661..72ef246793 100644 --- a/exec-all.h +++ b/exec-all.h @@ -356,4 +356,18 @@ extern int singlestep; /* cpu-exec.c */ extern volatile sig_atomic_t exit_request; +/* Deterministic execution requires that IO only be performed on the last + instruction of a TB so that interrupts take effect immediately. */ +static inline int can_do_io(CPUState *env) +{ + if (!use_icount) { + return 1; + } + /* If not executing code then assume we are ok. */ + if (!env->current_tb) { + return 1; + } + return env->can_do_io != 0; +} + #endif |