Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.35 as permitted sender) client-ip=23.128.96.35;
Date:   Thu, 14 Sep 2023 11:51:59 +0200
From:   Andrew Jones <ajones@ventanamicro.com>
To:     Haibo Xu <haibo1.xu@intel.com>
Cc:     xiaobo55x@gmail.com, Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Shuah Khan <shuah@kernel.org>, Marc Zyngier <maz@kernel.org>,
        Oliver Upton <oliver.upton@linux.dev>,
        James Morse <james.morse@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Zenghui Yu <yuzenghui@huawei.com>,
        Anup Patel <anup@brainfault.org>,
        Atish Patra <atishp@atishpatra.org>,
        Sean Christopherson <seanjc@google.com>,
        Ricardo Koller <ricarkol@google.com>,
        Vishal Annapurve <vannapurve@google.com>,
        Vitaly Kuznetsov <vkuznets@redhat.com>,
        Vipin Sharma <vipinsh@google.com>,
        David Matlack <dmatlack@google.com>,
        Colton Lewis <coltonlewis@google.com>,
        Aaron Lewis <aaronlewis@google.com>,
        Thomas Huth <thuth@redhat.com>, linux-kernel@vger.kernel.org,
        linux-riscv@lists.infradead.org, kvm@vger.kernel.org,
        linux-kselftest@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
        kvm-riscv@lists.infradead.org
Subject: Re: [PATCH v3 9/9] KVM: riscv: selftests: Add sstc timer test
Message-ID: <20230914-d2e594e7d84503ad14036e2d@orel>
References: <cover.1694421911.git.haibo1.xu@intel.com>
 <64e0637cd6f22dd7557ed44bd2242001e7830d1c.1694421911.git.haibo1.xu@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <64e0637cd6f22dd7557ed44bd2242001e7830d1c.1694421911.git.haibo1.xu@intel.com>
Precedence: bulk

On Thu, Sep 14, 2023 at 09:37:03AM +0800, Haibo Xu wrote:
> Add a KVM selftests to validate the Sstc timer functionality.
> The test was ported from arm64 arch timer test.

I just tried this test out. Running it over and over again on QEMU I see
it works sometimes, but it frequently fails with the
GUEST_ASSERT_EQ(config_iter + 1, irq_iter) assert and at least once I
also saw the __GUEST_ASSERT(xcnt >= cmp) assert.

Thanks,
drew