Re: [Qemu-devel] [QEMU-PPC] [PATCH V2 00/10] target/ppc: Implement POWER9 pseries tcg

[Suraj Jitindar Singh <sjitindarsingh@gmail.com>]

On Fri, 2017-02-10 at 16:28 +1100, Suraj Jitindar Singh wrote:
> On Fri, 2017-02-10 at 16:25 +1100, Suraj Jitindar Singh wrote:
> > 
> > This is V2 of the patch series to implement tcg emulation support
> > for
> > a
> > POWER9 cpu model for the pseries machine type running a legacy
> > kernel.
> > That is a kernel which doesn't use the new radix mmu mode or the
> > new
> > hash
> > mmu mode with segment tables.
> FWIW tree available here:
> https://gitlab.ozlabs.ibm.com/surajjs/qemu/tree/POWER9-LEGACY
Scratch that, this:
https://github.ibm.com/surajjs/qemu/tree/POWER9-LEGACY
> > 
> > 
> > To use a POWER9 cpu provide the command line option "-cpu POWER9".
> > 
> > This series attempts to avoid precluding KVM-HV support for the
> > POWER9
> > cpu model but doesn't attempt to support KVM-PR or the powernv
> > machine
> > for the POWER9 cpu model as these aren't currently supported or
> > implemented and further code changes will be required in the event
> > these
> > are implemented.
> > 
> > This series will be followed shortly by one to implement radix
> > support and
> > currently trying to boot a kernel with support for radix with this
> > series
> > will fail on the H_REGISTER_PROCESS_TABLE hcall.
> > 
> > The changes from V1 are as follows:
> > 
> >  - Drop patches which have already been merged.
> >  - Instead of allocating a whole partition table we allocate a
> > single
> >    entry in the sPAPRMachineState and access it via the virtual
> > hypv.
> >  - Changes to how we handle SDR1 and renaming of associated
> > functions.
> >  - Drop patch to use the new pte format, guest kernels expect the
> > old
> >    format anyway, so this will only be applicable when POWER9
> > powernv
> >    support is added, so delay adding support for this until then.
> >  - Rename the mmu fault handler to ppc64_v3_handle_mmu_fault.
> >  - Move segment table searching into the fault handler instead of
> > in
> >    slb_lookup().
> >  - Move adding the POWER9 pseries cpu model to the end of the
> > series.
> > 
> > Suraj Jitindar Singh (10):
> >   target/ppc/POWER9: Add ISAv3.00 MMU definition
> >   target/ppc: Fix LPCR DPFD mask define
> >   target/ppc/POWER9: Adapt LPCR handling for POWER9
> >   target/ppc/POWER9: Direct all instr and data storage interrupts
> > to
> > the
> >     hypv
> >   target/ppc: Add patb_entry to sPAPRMachineState
> >   target/ppc: Don't use SDR1 when running under a POWER9 cpu model
> >   target/ppc/POWER9: Add POWER9 mmu fault handler
> >   target/ppc/POWER9: Add POWER9 pa-features definition
> >   target/ppc/POWER9: Add cpu_has_work function for POWER9
> >   hw/ppc/spapr: Add POWER9 to pseries cpu models
> > 
> >  hw/ppc/spapr.c              | 37 ++++++++++++++++++
> >  hw/ppc/spapr_cpu_core.c     |  3 ++
> >  include/hw/ppc/spapr.h      |  1 +
> >  target/ppc/cpu-qom.h        |  5 ++-
> >  target/ppc/cpu.h            | 24 +++++++++++-
> >  target/ppc/kvm.c            |  2 +-
> >  target/ppc/machine.c        |  4 +-
> >  target/ppc/misc_helper.c    |  3 +-
> >  target/ppc/mmu-hash64.c     | 49 +++++++++++++++++++++---
> >  target/ppc/mmu-hash64.h     |  2 +-
> >  target/ppc/mmu.h            | 50 +++++++++++++++++++++++++
> >  target/ppc/mmu_helper.c     | 54 +++++++++++++++++++++++++--
> >  target/ppc/translate.c      |  7 +++-
> >  target/ppc/translate_init.c | 91
> > +++++++++++++++++++++++++++++++++++++++------
> >  14 files changed, 302 insertions(+), 30 deletions(-)
> >  create mode 100644 target/ppc/mmu.h