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In-Reply-To: <20230701-0255de0b29b22f180bb3bbbf@orel>
From:   Haibo Xu <xiaobo55x@gmail.com>
Date:   Sat, 1 Jul 2023 22:35:18 +0800
Message-ID: <CAJve8okE3Sa0j4+u+L9UHO9aSbzXU8pXvDNqKe9omoX=fx6XXw@mail.gmail.com>
Subject: Re: [PATCH v5 08/13] KVM: arm64: selftests: Move reject_set check
 logic to a function
To:     Andrew Jones <ajones@ventanamicro.com>
Cc:     Haibo Xu <haibo1.xu@intel.com>, maz@kernel.org,
        oliver.upton@linux.dev, seanjc@google.com,
        Paolo Bonzini <pbonzini@redhat.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Anup Patel <anup@brainfault.org>,
        Atish Patra <atishp@atishpatra.org>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Shuah Khan <shuah@kernel.org>,
        James Morse <james.morse@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Zenghui Yu <yuzenghui@huawei.com>,
        Ricardo Koller <ricarkol@google.com>,
        Vishal Annapurve <vannapurve@google.com>,
        David Matlack <dmatlack@google.com>,
        Vipin Sharma <vipinsh@google.com>,
        Colton Lewis <coltonlewis@google.com>, kvm@vger.kernel.org,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org,
        linux-kselftest@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev
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On Sat, Jul 1, 2023 at 10:21=E2=80=AFPM Andrew Jones <ajones@ventanamicro.c=
om> wrote:
>
> On Sat, Jul 01, 2023 at 09:42:56PM +0800, Haibo Xu wrote:
> > No functional changes. Just move the reject_set check logic to a
> > function so we can check for specific errno for specific register.
>
> 'for specific register' part isn't true anymore.
>
> > This is a preparation for support reject_set in riscv.
> >
> > Suggested-by: Andrew Jones <ajones@ventanamicro.com>
> > Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
> > ---
> >  tools/testing/selftests/kvm/aarch64/get-reg-list.c | 5 +++++
> >  tools/testing/selftests/kvm/get-reg-list.c         | 7 ++++++-
> >  2 files changed, 11 insertions(+), 1 deletion(-)
> >
> > diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools=
/testing/selftests/kvm/aarch64/get-reg-list.c
> > index aaf035c969ec..4aa58f1aebe3 100644
> > --- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> > +++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
> > @@ -27,6 +27,11 @@ bool filter_reg(__u64 reg)
> >       return false;
> >  }
> >
> > +bool check_reject_set(int err)
> > +{
> > +     return err =3D=3D EPERM;
> > +}
> > +
> >  #define REG_MASK (KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_=
COPROC_MASK)
> >
> >  #define CORE_REGS_XX_NR_WORDS        2
> > diff --git a/tools/testing/selftests/kvm/get-reg-list.c b/tools/testing=
/selftests/kvm/get-reg-list.c
> > index f6ad7991a812..79e198968860 100644
> > --- a/tools/testing/selftests/kvm/get-reg-list.c
> > +++ b/tools/testing/selftests/kvm/get-reg-list.c
> > @@ -98,6 +98,11 @@ void __weak print_reg(const char *prefix, __u64 id)
> >       printf("\t0x%llx,\n", id);
> >  }
> >
> > +bool __weak check_reject_set(int err)
> > +{
> > +     return true;
> > +}
> > +
> >  #ifdef __aarch64__
> >  static void prepare_vcpu_init(struct vcpu_reg_list *c, struct kvm_vcpu=
_init *init)
> >  {
> > @@ -216,7 +221,7 @@ static void run_test(struct vcpu_reg_list *c)
> >                       if (s->rejects_set && find_reg(s->rejects_set, s-=
>rejects_set_n, reg.id)) {
> >                               reject_reg =3D true;
> >                               ret =3D __vcpu_ioctl(vcpu, KVM_SET_ONE_RE=
G, &reg);
> > -                             if (ret !=3D -1 || errno !=3D EPERM) {
> > +                             if (ret !=3D -1 || !check_reject_set(errn=
o)) {
> >                                       printf("%s: Failed to reject (ret=
=3D%d, errno=3D%d) ", config_name(c), ret, errno);
> >                                       print_reg(config_name(c), reg.id)=
;
> >                                       putchar('\n');
> > --
> > 2.34.1
> >
>
> Otherwise,
>
> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>

Thanks for the review! Will fix it in the next version.