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| author | Paolo Bonzini <pbonzini@redhat.com> | 2015-08-18 06:43:15 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-09-09 15:34:54 +0200 |
| commit | aed807c8e2bf009b2c6a35490d4fd4383887221d (patch) | |
| tree | 60cba0fab56d081be6209dd20ed7c857f09778d3 /cpu-exec.c | |
| parent | ab096a75cd626dcd4ad34b2a11652df0269bee0d (diff) | |
| download | qemu-aed807c8e2bf009b2c6a35490d4fd4383887221d.zip | |
tcg: synchronize exit_request and tcg_current_cpu accesses
Synchronize the remaining pair of accesses in cpu_signal. These should
be necessary on Windows as well, at least in theory. Probably
SuspendProcess and ResumeProcess introduce some implicit memory
barrier.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'cpu-exec.c')
| -rw-r--r-- | cpu-exec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/cpu-exec.c b/cpu-exec.c index e24c640013..ef9d74552e 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -372,7 +372,7 @@ int cpu_exec(CPUState *cpu) atomic_mb_set(&tcg_current_cpu, cpu); rcu_read_lock(); - if (unlikely(exit_request)) { + if (unlikely(atomic_mb_read(&exit_request))) { cpu->exit_request = 1; } |