Re: [PATCH v1 6/9] s390x: kvm: topology: interception of PTF instruction

[Pierre Morel]

On 7/14/21 6:53 PM, Pierre Morel wrote:
> Interception of the PTF instruction depending on the new
> KVM_CAP_S390_CPU_TOPOLOGY KVM extension.
>
> A global value is used to remember if a Topology change occured since
> the last interception of a PTF instruction with function code 0.
>
> Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>

...snip...

>   
> +int s390_handle_ptf(S390CPU *cpu, uint8_t r1, uintptr_t ra)
> +{
> +    CPUS390XState *env = &cpu->env;
> +    uint64_t reg = env->regs[r1];
> +    uint8_t fc = reg & S390_TOPO_FC_MASK;
> +
> +    if (!s390_has_feat(S390_FEAT_CONFIGURATION_TOPOLOGY)) {
> +        s390_program_interrupt(env, PGM_OPERAND, ra);

sorry, found an error:

s/OPERAND/OPERATION/


>

...snip...

--
Pierre Morel
IBM Lab Boeblingen