Re: [PATCH v2 7/8] KVM: riscv: selftest: Change vcpu_has_ext to a common function

[Haibo Xu]

On Wed, Sep 6, 2023 at 6:10 PM Haibo Xu <xiaobo55x@xxxxxxxxx> wrote:
>
> On Mon, Sep 4, 2023 at 10:04 PM Andrew Jones <ajones@xxxxxxxxxxxxxxxx> wrote:
> >
> > On Sat, Sep 02, 2023 at 08:59:29PM +0800, Haibo Xu wrote:
> > > diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
> > > index d8ecacd03ecf..c4028bf32e3f 100644
> > > --- a/tools/testing/selftests/kvm/riscv/get-reg-list.c
> > > +++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
> > > @@ -44,20 +44,6 @@ bool check_reject_set(int err)
> > >       return err == EINVAL;
> > >  }
> > >
> > > -static inline bool vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
> > > -{
> > > -     int ret;
> > > -     unsigned long value;
> > > -
> > > -     ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
> > > -     if (ret) {
> > > -             printf("Failed to get ext %d", ext);
> > > -             return false;
> > > -     }
> > > -
> > > -     return !!value;
> >
> > get-reg-list will now assert on get-reg when an extension isn't present,
> > rather than failing the __TEST_REQUIRE(), which would do a skip instead.
> > We need both the return false version and the assert version.
> >
>
> Ok, Will keep this one for get-reg-list and add another one for
> arch-timer specific usage.
>

Just thought about it again, maybe we only need the "return false"
version for both get-reg-list
and arch-timer tests since if an extension was not available, the test
can be skipped with a message.

bool vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
{
       unsigned long value = 0;

       __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);

       return !!value;
}

> > > -}
> > > -
> > >  void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
> > >  {
> > >       struct vcpu_reg_sublist *s;
> > > --
> > > 2.34.1
> > >
> >
> > Thanks,
> > drew