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[0/4] KVM: PPC: Convert P9 HV path to C

Message ID 20210513122207.1897664-1-npiggin@gmail.com
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Series KVM: PPC: Convert P9 HV path to C | expand

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Nicholas Piggin May 13, 2021, 12:22 p.m. UTC 
This applies on top of these series:

https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=238649
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=238941
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=238946

This was broken out from the large Cify series. Since that was last
posted, changes are:

- Rebase, reordering of patches, tweaking changelog and comments.
- Changed P9 radix exist SLB sanitising to use 4x slbmte to clear
  rather than 8x slbmfee/slbmfev, which turns out to be faster (and
  is what today's asm code does) [from review from Paul].
- Renamed book3s_hv_interrupt.c to book3s_hv_p9_entry.c, which reduces
  confusion with book3s_hv_interrupts.S.
- Fixed !HV compile [Alexey].

Nicholas Piggin (4):
  KVM: PPC: Book3S HV P9: Move xive vcpu context management into
    kvmhv_p9_guest_entry
  KVM: PPC: Book3S HV P9: Move radix MMU switching instructions together
  KVM: PPC: Book3S HV P9: Stop handling hcalls in real-mode in the P9
    path
  KVM: PPC: Book3S HV P9: Implement the rest of the P9 path in C

 arch/powerpc/include/asm/asm-prototypes.h |   3 +-
 arch/powerpc/include/asm/kvm_asm.h        |   1 +
 arch/powerpc/include/asm/kvm_book3s_64.h  |   8 +
 arch/powerpc/include/asm/kvm_host.h       |   7 +-
 arch/powerpc/include/asm/kvm_ppc.h        |   6 +
 arch/powerpc/kernel/security.c            |   5 +-
 arch/powerpc/kvm/Makefile                 |   1 +
 arch/powerpc/kvm/book3s.c                 |   6 +
 arch/powerpc/kvm/book3s_64_entry.S        | 254 ++++++++++++++++++++++
 arch/powerpc/kvm/book3s_hv.c              | 155 +++++++++----
 arch/powerpc/kvm/book3s_hv_p9_entry.c     | 207 ++++++++++++++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S   | 120 +---------
 arch/powerpc/kvm/book3s_xive.c            |  64 ++++++
 13 files changed, 683 insertions(+), 154 deletions(-)
 create mode 100644 arch/powerpc/kvm/book3s_hv_p9_entry.c