[Qemu-devel] [PATCH 00/22] [uq/master] Patch queue, part II

[Jan Kiszka]

This second round of patches focus on issues in cpus.c, primarily signal
related. The highlights are

 - Add missing KVM_RUN continuation after I/O exits
 - Fix for timer signal race in KVM entry code under !CONFIG_IOTHREAD
   (based on Stefan's findings)
 - MCE signal processing under !CONFIG_IOTHREAD
 - Prevent abortion on multiple VCPU kicks
 - Fixed synchronous (ie. VCPU-issued) reset request processing

Topics remaining for a third round are cleanups and refactorings of the
KVM VCPU entry/exit path, MCE rework, and a few assorted cleanups. But I
will wait at least until these bits here are ready for an upstream
merge.

CC: Alexander Graf <address@hidden>
CC: Gleb Natapov <address@hidden>
CC: Hidetoshi Seto <address@hidden>
CC: Huang Ying <address@hidden>
CC: Jin Dongming <address@hidden>
CC: Paolo Bonzini <address@hidden>
CC: Stefan Hajnoczi <address@hidden>

Jan Kiszka (22):
  Prevent abortion on multiple VCPU kicks
  Stop current VCPU on synchronous reset requests
  Process vmstop requests in IO thread
  Leave inner main_loop faster on pending requests
  kvm: Report proper error on GET_VCPU_MMAP_SIZE failures
  kvm: Drop redundant kvm_enabled from kvm_cpu_thread_fn
  kvm: Handle kvm_init_vcpu errors
  kvm: Provide sigbus services arch-independently
  Refactor signal setup functions in cpus.c
  kvm: Set up signal mask also for !CONFIG_IOTHREAD
  kvm: Refactor qemu_kvm_eat_signals
  kvm: Call qemu_kvm_eat_signals also under !CONFIG_IOTHREAD
  Set up signalfd under !CONFIG_IOTHREAD
  kvm: Fix race between timer signals and vcpu entry under !IOTHREAD
  kvm: Add MCE signal support for !CONFIG_IOTHREAD
  Introduce VCPU self-signaling service
  kvm: Move irqchip event processing out of inner loop
  kvm: Unconditionally reenter kernel after IO exits
  kvm: Remove static return code of kvm_handle_io
  kvm: Leave kvm_cpu_exec directly after KVM_EXIT_SHUTDOWN
  Refactor kvm&tcg function names in cpus.c
  Fix a few coding style violations in cpus.c

 Makefile.objs      |    2 +-
 cpu-defs.h         |    1 +
 cpus.c             |  639 +++++++++++++++++++++++++++++++---------------------
 cpus.h             |    1 +
 kvm-all.c          |   60 +++--
 kvm-stub.c         |    5 +
 kvm.h              |    7 +-
 qemu-common.h      |    1 +
 target-i386/kvm.c  |    4 +-
 target-ppc/kvm.c   |   10 +
 target-s390x/kvm.c |   10 +
 vl.c               |   26 +-
 12 files changed, 469 insertions(+), 297 deletions(-)