On Fri, 2019-05-03 at 15:53 +1000, Suraj Jitindar Singh wrote: > This patch series adds the necessary parts so that a tcg guest is > able to use > kvm facilities. That is a tcg guest can boot its own kvm guests. > > The main requirements for this were a few registers and instructions > as well as > some hcalls and the addition of partition scoped translation in the > radix mmu > emulation. > > This can be used to boot a kvm guest under a pseries tcg guest: > Use power9_v2.2 cpu and add -machine cap-nested-hv=on for the first > guest. > Then inside that guest boot a kvm guest as normal. > This takes advantage of the new hcalls with qemu emulating them as a > normal > hypervisor would on a real machine. > > This can also be used to boot a kvm guest under a powernv tcg guest: > Use any power9 cpu type. > This takes advantage of the new hv register access added. > Note that for powernv there is no xive interrupt excalation for KVM > which means > that while the guest will boot, it won't receive any interrupts.
Ah so I'm suddenly aware I based this on the wrong tree so it won't apply to your dwg-ppc-for-4.1 David. Consider this a RFC and I'll rebase and resend when required. > > Suraj Jitindar Singh (13): > target/ppc: Implement the VTB for HV access > target/ppc: Work [S]PURR implementation and add HV support > target/ppc: Add SPR ASDR > target/ppc: Add SPR TBU40 > target/ppc: Add privileged message send facilities > target/ppc: Enforce that the root page directory size must be at > least > 5 > target/ppc: Handle partition scoped radix tree translation > target/ppc: Implement hcall H_SET_PARTITION_TABLE > target/ppc: Implement hcall H_ENTER_NESTED > target/ppc: Implement hcall H_TLB_INVALIDATE > target/ppc: Implement hcall H_COPY_TOFROM_GUEST > target/ppc: Introduce POWER9 DD2.2 cpu type > target/ppc: Enable SPAPR_CAP_NESTED_KVM_HV under tcg > > hw/ppc/ppc.c | 46 ++++- > hw/ppc/spapr_caps.c | 22 ++- > hw/ppc/spapr_cpu_core.c | 1 + > hw/ppc/spapr_hcall.c | 409 > +++++++++++++++++++++++++++++++++++++++ > include/hw/ppc/ppc.h | 4 +- > include/hw/ppc/spapr.h | 7 +- > linux-user/ppc/cpu_loop.c | 5 + > target/ppc/cpu-models.c | 2 + > target/ppc/cpu-models.h | 1 + > target/ppc/cpu.h | 70 +++++++ > target/ppc/excp_helper.c | 79 +++++++- > target/ppc/helper.h | 9 + > target/ppc/misc_helper.c | 46 +++++ > target/ppc/mmu-radix64.c | 412 ++++++++++++++++++++++++++++ > ------------ > target/ppc/mmu-radix64.h | 4 + > target/ppc/timebase_helper.c | 20 ++ > target/ppc/translate.c | 28 +++ > target/ppc/translate_init.inc.c | 107 +++++++++-- > 18 files changed, 1115 insertions(+), 157 deletions(-) >
