[PATCH 00/26] KVM: PPC: Book3S PR: Transaction memory support on PR KVM

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From: Simon Guo <wei.guo.simon@xxxxxxxxx>

In current days, many OS distributions have utilized transaction
memory functionality. In PowerPC, HV KVM supports TM. But PR KVM
does not.

The drive for the transaction memory support of PR KVM is the
openstack Continuous Integration testing - They runs a HV(hypervisor)
KVM(as level 1) and then run PR KVM(as level 2) on top of that.

This patch set add transaction memory support on PR KVM.

Test cases performed:
linux/tools/testing/selftests/powerpc/tm/tm-syscall
linux/tools/testing/selftests/powerpc/tm/tm-fork
linux/tools/testing/selftests/powerpc/tm/tm-vmx-unavail
linux/tools/testing/selftests/powerpc/tm/tm-tmspr
linux/tools/testing/selftests/powerpc/tm/tm-signal-msr-resv
linux/tools/testing/selftests/powerpc/math/vsx_preempt
linux/tools/testing/selftests/powerpc/math/fpu_signal
linux/tools/testing/selftests/powerpc/math/vmx_preempt
linux/tools/testing/selftests/powerpc/math/fpu_syscall
linux/tools/testing/selftests/powerpc/math/vmx_syscall
linux/tools/testing/selftests/powerpc/math/fpu_preempt
linux/tools/testing/selftests/powerpc/math/vmx_signal
linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr
linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr
linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx
linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr
linux/tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx
https://github.com/justdoitqd/publicFiles/blob/master/test_tbegin_pr.c
https://github.com/justdoitqd/publicFiles/blob/master/test_tabort.c
https://github.com/justdoitqd/publicFiles/blob/master/test_kvm_htm_cap.c

Simon Guo (25):
  KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate
    file
  KVM: PPC: Book3S PR: add new parameter (guest MSR) for
    kvmppc_save_tm()/kvmppc_restore_tm()
  KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm()
  KVM: PPC: Book3S PR: add C function wrapper for
    _kvmppc_save/restore_tm()
  KVM: PPC: Book3S PR: In PR KVM suspends Transactional state when
    inject an interrupt.
  KVM: PPC: Book3S PR: PR KVM pass through MSR TM/TS bits to shadow_msr.
  KVM: PPC: Book3S PR: add TEXASR related macros
  KVM: PPC: Book3S PR: Sync TM bits to shadow msr for problem state
    guest
  KVM: PPC: Book3S PR: implement RFID TM behavior to suppress change
    from S0 to N0
  KVM: PPC: Book3S PR: set MSR HV bit accordingly for PPC970 and others.
  KVM: PPC: Book3S PR: prevent TS bits change in kvmppc_interrupt_pr()
  powerpc: export symbol msr_check_and_set().
  KVM: PPC: Book3S PR: adds new
    kvmppc_copyto_vcpu_tm/kvmppc_copyfrom_vcpu_tm API for PR KVM.
  KVM: PPC: Book3S PR: export tm_enable()/tm_disable/tm_abort() APIs
  KVM: PPC: Book3S PR: add kvmppc_save/restore_tm_sprs() APIs
  KVM: PPC: Book3S PR: add transaction memory save/restore skeleton for
    PR KVM
  KVM: PPC: Book3S PR: add math support for PR KVM HTM
  KVM: PPC: Book3S PR: make mtspr/mfspr emulation behavior based on
    active TM SPRs
  KVM: PPC: Book3S PR: always fail transaction in guest privilege state
  KVM: PPC: Book3S PR: enable NV reg restore for reading TM SPR at guest
    privilege state
  KVM: PPC: Book3S PR: adds emulation for treclaim.
  KVM: PPC: Book3S PR: add emulation for trechkpt in PR KVM.
  KVM: PPC: Book3S PR: add emulation for tabort. for privilege guest
  KVM: PPC: Book3S PR: add guard code to prevent returning to guest with
    PR=0 and Transactional state
  KVM: PPC: Book3S PR: enable HTM for PR KVM for KVM_CHECK_EXTENSION
    ioctl

 arch/powerpc/include/asm/asm-prototypes.h   |  10 +
 arch/powerpc/include/asm/kvm_book3s.h       |   8 +
 arch/powerpc/include/asm/kvm_host.h         |   3 +
 arch/powerpc/include/asm/reg.h              |  25 +-
 arch/powerpc/include/asm/tm.h               |   2 -
 arch/powerpc/include/uapi/asm/tm.h          |   2 +-
 arch/powerpc/kernel/process.c               |   1 +
 arch/powerpc/kernel/tm.S                    |  12 +
 arch/powerpc/kvm/Makefile                   |   3 +
 arch/powerpc/kvm/book3s.h                   |   1 +
 arch/powerpc/kvm/book3s_64_mmu.c            |  11 +-
 arch/powerpc/kvm/book3s_emulate.c           | 279 +++++++++++++++++++-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S     | 259 ++-----------------
 arch/powerpc/kvm/book3s_pr.c                | 256 +++++++++++++++++--
 arch/powerpc/kvm/book3s_segment.S           |  13 +
 arch/powerpc/kvm/powerpc.c                  |   3 +-
 arch/powerpc/kvm/tm.S                       | 379 ++++++++++++++++++++++++++++
 arch/powerpc/mm/hash_utils_64.c             |   1 +
 arch/powerpc/platforms/powernv/copy-paste.h |   3 +-
 19 files changed, 982 insertions(+), 289 deletions(-)
 create mode 100644 arch/powerpc/kvm/tm.S

-- 
1.8.3.1

*** BLURB HERE ***

Simon Guo (26):
  KVM: PPC: Book3S PR: Move kvmppc_save_tm/kvmppc_restore_tm to separate
    file
  KVM: PPC: Book3S PR: add new parameter (guest MSR) for
    kvmppc_save_tm()/kvmppc_restore_tm()
  KVM: PPC: Book3S PR: turn on FP/VSX/VMX MSR bits in kvmppc_save_tm()
  KVM: PPC: Book3S PR: add C function wrapper for
    _kvmppc_save/restore_tm()
  KVM: PPC: Book3S PR: In PR KVM suspends Transactional state when
    inject an interrupt.
  KVM: PPC: Book3S PR: PR KVM pass through MSR TM/TS bits to shadow_msr.
  KVM: PPC: Book3S PR: add TEXASR related macros
  KVM: PPC: Book3S PR: Sync TM bits to shadow msr for problem state
    guest
  KVM: PPC: Book3S PR: implement RFID TM behavior to suppress change
    from S0 to N0
  KVM: PPC: Book3S PR: set MSR HV bit accordingly for PPC970 and others.
  KVM: PPC: Book3S PR: prevent TS bits change in kvmppc_interrupt_pr()
  powerpc: export symbol msr_check_and_set().
  KVM: PPC: Book3S PR: adds new
    kvmppc_copyto_vcpu_tm/kvmppc_copyfrom_vcpu_tm API for PR KVM.
  KVM: PPC: Book3S PR: export tm_enable()/tm_disable/tm_abort() APIs
  KVM: PPC: Book3S PR: add kvmppc_save/restore_tm_sprs() APIs
  KVM: PPC: Book3S PR: add transaction memory save/restore skeleton for
    PR KVM
  KVM: PPC: Book3S PR: add math support for PR KVM HTM
  KVM: PPC: Book3S PR: make mtspr/mfspr emulation behavior based on
    active TM SPRs
  KVM: PPC: Book3S PR: always fail transaction in guest privilege state
  KVM: PPC: Book3S PR: enable NV reg restore for reading TM SPR at guest
    privilege state
  KVM: PPC: Book3S PR: adds emulation for treclaim.
  KVM: PPC: Book3S PR: add emulation for trechkpt in PR KVM.
  KVM: PPC: Book3S PR: add emulation for tabort. for privilege guest
  KVM: PPC: Book3S PR: add guard code to prevent returning to guest with
    PR=0 and Transactional state
  KVM: PPC: Book3S PR: Support TAR handling for PR KVM HTM.
  KVM: PPC: Book3S PR: enable HTM for PR KVM for KVM_CHECK_EXTENSION
    ioctl

 arch/powerpc/include/asm/asm-prototypes.h   |  10 +
 arch/powerpc/include/asm/kvm_book3s.h       |   9 +
 arch/powerpc/include/asm/kvm_host.h         |   3 +
 arch/powerpc/include/asm/reg.h              |  25 +-
 arch/powerpc/include/asm/tm.h               |   2 -
 arch/powerpc/include/uapi/asm/tm.h          |   2 +-
 arch/powerpc/kernel/process.c               |   1 +
 arch/powerpc/kernel/tm.S                    |  12 +
 arch/powerpc/kvm/Makefile                   |   3 +
 arch/powerpc/kvm/book3s.h                   |   1 +
 arch/powerpc/kvm/book3s_64_mmu.c            |  11 +-
 arch/powerpc/kvm/book3s_emulate.c           | 283 +++++++++++++++++++-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S     | 259 ++----------------
 arch/powerpc/kvm/book3s_pr.c                | 287 ++++++++++++++++++--
 arch/powerpc/kvm/book3s_segment.S           |  13 +
 arch/powerpc/kvm/powerpc.c                  |   3 +-
 arch/powerpc/kvm/tm.S                       | 391 ++++++++++++++++++++++++++++
 arch/powerpc/mm/hash_utils_64.c             |   1 +
 arch/powerpc/platforms/powernv/copy-paste.h |   3 +-
 19 files changed, 1028 insertions(+), 291 deletions(-)
 create mode 100644 arch/powerpc/kvm/tm.S

-- 
1.8.3.1




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