This series has an assortment of cleanups to the handling of the hash based MMU for 64-bit ppc machines. In particular it better handles the case of "external" hash table - this is used on the pseries machine type, which being a paravirtualized platform has the hashed page table - along with other hypervisor resources - outside the direct reach of the guest OS. This series integrates the handling of the external HPT with the externalized handling of hypercalls via the "virtual hypervisor" mechanism.
These cleanups are expected to make integrating the new MMU model for POWER9 easier; in particular dealing with both the new POWER9 radix MMU and also the POWER9 legacy hash compatibility mode. This series is based on my current ppc-for-2.9 branch, which I've just sent a pull request for. David Gibson (6): pseries: Minor cleanups to HPT management hypercalls target/ppc: Merge cpu_ppc_set_vhyp() with cpu_ppc_set_papr() target/ppc: SDR1 is a hypervisor resource target/ppc: Cleanup HPTE accessors for 64-bit hash MMU target/ppc: Eliminate htab_base and htab_mask variables target/ppc: Manage external HPT via virtual hypervisor hw/ppc/spapr.c | 58 +++++++++++++++ hw/ppc/spapr_cpu_core.c | 20 ++++- hw/ppc/spapr_hcall.c | 89 +++++++++++----------- target/ppc/cpu.h | 24 +++--- target/ppc/kvm.c | 27 +++---- target/ppc/kvm_ppc.h | 43 +++++------ target/ppc/machine.c | 5 +- target/ppc/misc_helper.c | 8 +- target/ppc/mmu-hash32.c | 14 ++-- target/ppc/mmu-hash32.h | 32 ++++---- target/ppc/mmu-hash64.c | 177 ++++++++++++++++++-------------------------- target/ppc/mmu-hash64.h | 66 +++++++++-------- target/ppc/mmu_helper.c | 34 +++++---- target/ppc/translate_init.c | 30 +++++--- 14 files changed, 332 insertions(+), 295 deletions(-) -- 2.9.3
