linux-kernel - Re: [PATCH 0/4] RISCV: Add kvm Sstc timer selftest

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Message-ID: <CAJve8onbxHjJoC-k-TtOm1BBtjm38moaW-Kk8siKsxt9nwZZZw@mail.gmail.com>
Date:   Sun, 27 Aug 2023 16:59:21 +0800
From:   Haibo Xu <xiaobo55x@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     Haibo Xu <haibo1.xu@...el.com>, ajones@...tanamicro.com,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Shuah Khan <shuah@...nel.org>,
        Anup Patel <anup@...infault.org>,
        Atish Patra <atishp@...shpatra.org>,
        Vipin Sharma <vipinsh@...gle.com>,
        Colton Lewis <coltonlewis@...gle.com>,
        Marc Zyngier <maz@...nel.org>,
        Andrew Jones <andrew.jones@...ux.dev>,
        Vishal Annapurve <vannapurve@...gle.com>,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        kvm@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kvm-riscv@...ts.infradead.org
Subject: Re: [PATCH 0/4] RISCV: Add kvm Sstc timer selftest

On Thu, Aug 3, 2023 at 6:16 AM Sean Christopherson <seanjc@...gle.com> wrote:
>
> On Thu, Jul 27, 2023, Haibo Xu wrote:
> > The sstc_timer selftest is used to validate Sstc timer functionality
> > in a guest, which sets up periodic timer interrupts and check the
> > basic interrupt status upon its receipt.
> >
> > This KVM selftest was ported from aarch64 arch_timer and tested
> > with Linux v6.5-rc3 on a Qemu riscv64 virt machine.
> >
> > Haibo Xu (4):
> >   tools: riscv: Add header file csr.h
> >   KVM: riscv: selftests: Add exception handling support
> >   KVM: riscv: selftests: Add guest helper to get vcpu id
> >   KVM: riscv: selftests: Add sstc_timer test
>
> FYI, patch 4 will conflict with the in-flight guest printf changes[*], as will
> reworking the existing arch_timer test.  My plan is to create an immutable tag
> later this week (waiting to make sure nothing explodes).  I highly recommend basing
> v2 on top of that.
>

Hi Sean,

Could you help point me to the immutable tag for the guest printf changes?

Regards,
Haibo

> [*] https://lore.kernel.org/all/20230729003643.1053367-1-seanjc@google.com