Excerpts from Fabiano Rosas's message of March 4, 2021 6:09 am:
> Nicholas Piggin <npiggin@xxxxxxxxx> writes:
>
>> In order to support hash guests in the P9 path (which does not do real
>> mode hcalls or page fault handling), these real-mode hash specific
>> interrupts need to be implemented in virt mode.
>>
>> Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
>> ---
>> arch/powerpc/kvm/book3s_hv.c | 118 +++++++++++++++++++++++++++++++++--
>> 1 file changed, 113 insertions(+), 5 deletions(-)
>>
>> diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
>> index 9d2fa21201c1..1bbc46f2cfbf 100644
>> --- a/arch/powerpc/kvm/book3s_hv.c
>> +++ b/arch/powerpc/kvm/book3s_hv.c
>> @@ -935,6 +935,52 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
>> return RESUME_HOST;
>>
>> switch (req) {
>> + case H_REMOVE:
>> + ret = kvmppc_h_remove(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5),
>> + kvmppc_get_gpr(vcpu, 6));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_ENTER:
>> + ret = kvmppc_h_enter(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5),
>> + kvmppc_get_gpr(vcpu, 6),
>> + kvmppc_get_gpr(vcpu, 7));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_READ:
>> + ret = kvmppc_h_read(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_CLEAR_MOD:
>> + ret = kvmppc_h_clear_mod(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_CLEAR_REF:
>> + ret = kvmppc_h_clear_ref(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_PROTECT:
>> + ret = kvmppc_h_protect(vcpu, kvmppc_get_gpr(vcpu, 4),
>> + kvmppc_get_gpr(vcpu, 5),
>> + kvmppc_get_gpr(vcpu, 6));
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> + case H_BULK_REMOVE:
>> + ret = kvmppc_h_bulk_remove(vcpu);
>> + if (ret == H_TOO_HARD)
>> + return RESUME_HOST;
>> + break;
>> +
>
> Some of these symbols need to be exported.
>
> ERROR: modpost: "kvmppc_h_bulk_remove" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_clear_mod" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_xive_xics_hcall" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_remove" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "decrementers_next_tb" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_hpte_hv_fault" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_protect" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_enter" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_clear_ref" [arch/powerpc/kvm/kvm-hv.ko] undefined!
> ERROR: modpost: "kvmppc_h_read" [arch/powerpc/kvm/kvm-hv.ko] undefined!
Yeah sorry about that there's a few issues there, I'll try polish that
up a bit before the next post.
Thanks,
Nick
