The purpose of this series is to split the tcg-cpus into
3 variants:
tcg_cpus_mttcg (multithreaded tcg vcpus)
tcg_cpus_rr (single threaded round robin vcpus)
tcg_cpus_icount (same as RR, but using icount)
Alex, I read the comment in tcg_start_vcpu_thread saying:
/*
* Initialize TCG regions--once. Now is a good time, because:
* (1) TCG's init context, prologue and target globals have been set up.
* (2) qemu_tcg_mttcg_enabled() works now (TCG init code runs before the
* -accel flag is processed, so the check doesn't work then).
*/
Is this actually current?
I tried to refactor this (see patch 2), and it seems to work to do
the init of regions in tcg_init, and it seems that mttcg_enabled is known
already at that point..
Ciao,
Claudio
Claudio Fontana (2):
accel/tcg: split CpusAccel into three TCG variants
accel/tcg: split tcg_start_vcpu_thread
accel/tcg/meson.build | 9 +-
accel/tcg/tcg-all.c | 13 +-
accel/tcg/tcg-cpus-icount.c | 145 +++++++++++
accel/tcg/tcg-cpus-icount.h | 20 ++
accel/tcg/tcg-cpus-mttcg.c | 142 ++++++++++
accel/tcg/tcg-cpus-mttcg.h | 25 ++
accel/tcg/tcg-cpus-rr.c | 305 ++++++++++++++++++++++
accel/tcg/tcg-cpus-rr.h | 26 ++
accel/tcg/tcg-cpus.c | 500 +-----------------------------------
accel/tcg/tcg-cpus.h | 9 +-
softmmu/icount.c | 2 +-
11 files changed, 697 insertions(+), 499 deletions(-)
create mode 100644 accel/tcg/tcg-cpus-icount.c
create mode 100644 accel/tcg/tcg-cpus-icount.h
create mode 100644 accel/tcg/tcg-cpus-mttcg.c
create mode 100644 accel/tcg/tcg-cpus-mttcg.h
create mode 100644 accel/tcg/tcg-cpus-rr.c
create mode 100644 accel/tcg/tcg-cpus-rr.h
--
2.26.2
