diff options
| author | Alex Bennée <alex.bennee@linaro.org> | 2017-02-23 18:29:10 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2017-02-24 10:32:45 +0000 |
| commit | 791158d93b27f22a17c2ada06621831d54f09a2c (patch) | |
| tree | 7ca792b10da6cfd7970f334436520f4cc2d425dd /cpu-exec.c | |
| parent | 6546706d28bbcec5c14601b446c0a1cde5256597 (diff) | |
tcg: rename tcg_current_cpu to tcg_current_rr_cpu
..and make the definition local to cpus. In preparation for MTTCG the
concept of a global tcg_current_cpu will no longer make sense. However
we still need to keep track of it in the single-threaded case to be able
to exit quickly when required.
qemu_cpu_kick_no_halt() moves and becomes qemu_cpu_kick_rr_cpu() to
emphasise its use-case. qemu_cpu_kick now kicks the relevant cpu as
well as qemu_kick_rr_cpu() which will become a no-op in MTTCG.
For the time being the setting of the global exit_request remains.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
Diffstat (limited to 'cpu-exec.c')
| -rw-r--r-- | cpu-exec.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/cpu-exec.c b/cpu-exec.c index ec84fdb3d7..06a6b25564 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -612,7 +612,6 @@ int cpu_exec(CPUState *cpu) return EXCP_HALTED; } - atomic_mb_set(&tcg_current_cpu, cpu); rcu_read_lock(); if (unlikely(atomic_mb_read(&exit_request))) { @@ -666,7 +665,5 @@ int cpu_exec(CPUState *cpu) /* fail safe : never use current_cpu outside cpu_exec() */ current_cpu = NULL; - /* Does not need atomic_mb_set because a spurious wakeup is okay. */ - atomic_set(&tcg_current_cpu, NULL); return ret; } |