Hi,
All of the changes in this revision are addressing comments from v7
posted last week. A new pre-cursor patch was added:
cputlb and arm/sparc targets: convert mmuidx flushes from varg to
bitmap
To change the cputlb API to use a bitmap instead of vargs. This has
generated quite a bit of churn in the ARM target but it is pretty
mechanical.
I also folded the BQL irq protection patches from v7 into:
tcg: drop global lock during TCG code execution
This is required to keep the series bisectable although the BQL safety
is only really relevant to guests using MTTCG. I didn't think it was
worth making the asserts conditional on parallel_cpus although it does
mean this patch gets a little bigger.
The other big change was to:
cputlb: introduce tlb_flush_*_all_cpus[_synced]
Where I replaced the wait flag with an expanded set of API calls. The
*_synced variants which are marked as QEMU_NORETURN to make their
behaviour clear.
The series applies to origin/master as of today and you can find my
tree at:
https://github.com/stsquad/qemu/tree/mttcg/base-patches-v8
There is the usual collection of r-b tags and minor merge/re-base
fixes all documented in the --- sections of the commit messages.
In terms of merging strategy I would appreciate some thoughts. While I
think the series is ready to go I appreciate it is quite a chunk to
merge in one go. That said an early merge gives us plenty of time to
shake out any lingering issues before feature freeze.
I guess the key decider is that we are happy the design provides for
solutions for any other things we come across?
Cheers,
Alex
Alex Bennée (19):
docs: new design document multi-thread-tcg.txt
tcg: move TCG_MO/BAR types into own file
tcg: add kick timer for single-threaded vCPU emulation
tcg: rename tcg_current_cpu to tcg_current_rr_cpu
tcg: remove global exit_request
tcg: enable tb_lock() for SoftMMU
tcg: enable thread-per-vCPU
cputlb: add assert_cpu_is_self checks
cputlb: tweak qemu_ram_addr_from_host_nofail reporting
cputlb and arm/sparc targets: convert mmuidx flushes from varg to
bitmap
cputlb: add tlb_flush_by_mmuidx async routines
cputlb: atomically update tlb fields used by tlb_reset_dirty
cputlb: introduce tlb_flush_*_all_cpus[_synced]
target-arm/powerctl: defer cpu reset work to CPU context
target-arm: don't generate WFE/YIELD calls for MTTCG
target-arm/cpu.h: make ARM_CP defined consistent
target-arm: introduce ARM_CP_EXIT_PC
target-arm: ensure all cross vCPUs TLB flushes complete
tcg: enable MTTCG by default for ARM on x86 hosts
Jan Kiszka (1):
tcg: drop global lock during TCG code execution
KONRAD Frederic (2):
tcg: add options for enabling MTTCG
cputlb: introduce tlb_flush_* async work.
Pranith Kumar (3):
mttcg: translate-all: Enable locking debug in a debug build
mttcg: Add missing tb_lock/unlock() in cpu_exec_step()
tcg: handle EXCP_ATOMIC exception for system emulation
configure | 6 +
cpu-exec-common.c | 3 -
cpu-exec.c | 41 ++--
cpus.c | 343 ++++++++++++++++++++++++++-------
cputlb.c | 465 +++++++++++++++++++++++++++++++++++++--------
docs/multi-thread-tcg.txt | 350 ++++++++++++++++++++++++++++++++++
exec.c | 12 +-
hw/core/irq.c | 1 +
hw/i386/kvmvapic.c | 4 +-
hw/intc/arm_gicv3_cpuif.c | 3 +
hw/ppc/ppc.c | 16 +-
hw/ppc/spapr.c | 3 +
include/exec/cputlb.h | 2 -
include/exec/exec-all.h | 130 +++++++++++--
include/qom/cpu.h | 16 ++
include/sysemu/cpus.h | 2 +
memory.c | 2 +
qemu-options.hx | 20 ++
qom/cpu.c | 10 +
target/arm/arm-powerctl.c | 146 ++++++++------
target/arm/cpu.h | 73 ++++---
target/arm/helper.c | 385 ++++++++++++++++++-------------------
target/arm/op_helper.c | 50 ++++-
target/arm/translate-a64.c | 26 ++-
target/arm/translate.c | 46 +++--
target/arm/translate.h | 4 +-
target/i386/smm_helper.c | 7 +
target/s390x/misc_helper.c | 5 +-
target/sparc/ldst_helper.c | 8 +-
tcg/i386/tcg-target.h | 16 ++
tcg/tcg-mo.h | 45 +++++
tcg/tcg.h | 27 +--
translate-all.c | 66 ++-----
translate-common.c | 21 +-
vl.c | 49 ++++-
35 files changed, 1818 insertions(+), 585 deletions(-)
create mode 100644 docs/multi-thread-tcg.txt
create mode 100644 tcg/tcg-mo.h
--
2.11.0
