Re: [PATCH 0/3] coroutine: use QEMU_DEFINE_STATIC_CO_TLS()

[Kevin Wolf]

Am 07.03.2022 um 16:38 hat Stefan Hajnoczi geschrieben:
> The coroutine implementation uses __thread variables internally. Compiler
> optimizations may cache Thread-Local Storage values across
> qemu_coroutine_yield(), leading to stale values being used after the coroutine
> is re-entered from another thread.
> 
> Kevin pointed out that the coroutine implementation itself is vulnerable to
> this problem. As a follow-up to my coroutine TLS patch series I'm sending 
> these
> patches to convert __thread variables to the new "qemu/coroutine-tls.h" macros
> so they are safe.

Thanks, applied to the block branch.

Kevin