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authorAlex Bennée <alex.bennee@linaro.org>2017-02-23 18:29:10 +0000
committerAlex Bennée <alex.bennee@linaro.org>2017-02-24 10:32:45 +0000
commit791158d93b27f22a17c2ada06621831d54f09a2c (patch)
tree7ca792b10da6cfd7970f334436520f4cc2d425dd /cpu-exec.c
parent6546706d28bbcec5c14601b446c0a1cde5256597 (diff)
downloadqemu-arm-791158d93b27f22a17c2ada06621831d54f09a2c.tar.gz
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.c3
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;
}