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

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Message-ID: <ZOyqRfdvxpdtSE1c@google.com>
Date:   Mon, 28 Aug 2023 07:08:05 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Haibo Xu <xiaobo55x@...il.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 Sun, Aug 27, 2023, Haibo Xu wrote:
> 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?

Sorry, I forgot to create the tag until last week, probably made it a bit hard to
find...

  https://github.com/kvm-x86/linux.git tags/kvm-x86-selftests-immutable-6.6