On 3/3/23 09:19, Paolo Bonzini wrote:
QemuEvent is currently broken on ARM due to missing memory barriers
after qatomic_*(). Apart from adding the memory barrier, a closer look
reveals some unpaired memory barriers too. Document more clearly what
is going on, and remove optimizations that I couldn't quite prove to
be correct.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
util/qemu-thread-posix.c | 64 ++++++++++++++++++++++++++++------------
1 file changed, 45 insertions(+), 19 deletions(-)
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
r~
