Paolo Bonzini <pbonz...@redhat.com> writes: > On 10/07/2015 18:08, fred.kon...@greensocs.com wrote: >> From: KONRAD Frederic <fred.kon...@greensocs.com> >> >> This is the async_safe_work introduction bit of the Multithread TCG work. >> Rebased on current upstream (6169b60285fe1ff730d840a49527e721bfb30899). >> >> It can be cloned here: >> http://git.greensocs.com/fkonrad/mttcg.git branch async_work_v2 >> >> The first patch introduces a mutex to protect the existing queued_work_* >> CPUState members against multiple (concurent) access. >> >> The second patch introduces a tcg_executing_flag which will be 1 when we are >> inside cpu_exec(). This is required as safe work need to be sure that's all >> vCPU >> are outside cpu_exec(). >> >> The last patch introduces async_safe_work. It allows to add some work which >> will >> be done asynchronously but only when all vCPUs are outside cpu_exec(). The >> tcg >> thread will wait that no vCPUs have any pending safe work before reentering >> cpu-exec(). >> >> Changes V1 -> V2: >> * Release the lock while running the callback for both async and safe work. > > What tree do these patches apply to?
See Fred's tree: http://git.greensocs.com/fkonrad/mttcg > > Paolo > >> KONRAD Frederic (3): >> cpus: protect queued_work_* with work_mutex. >> cpus: add a tcg_executing flag. >> cpus: introduce async_run_safe_work_on_cpu. >> >> cpu-exec.c | 7 +++ >> cpus.c | 164 >> +++++++++++++++++++++++++++++++++++++++++------------- >> include/qom/cpu.h | 28 ++++++++++ >> qom/cpu.c | 2 + >> 4 files changed, 161 insertions(+), 40 deletions(-) >> -- Alex Bennée
