linux-kernel - Re: [LKP] [x86/kvm/lapic] d176620277: kvm-unit-tests.vmx_EPT_AD

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Message-ID: <87a7nobndo.fsf@vitty.brq.redhat.com>
Date:   Mon, 08 Oct 2018 15:04:35 +0200
From:   Vitaly Kuznetsov <vkuznets@...hat.com>
To:     kernel test robot <rong.a.chen@...el.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        kvm@...r.kernel.org, lkp@...org
Subject: Re: [LKP] [x86/kvm/lapic]  d176620277: kvm-unit-tests.vmx_EPT_AD_disabled.fail

kernel test robot <rong.a.chen@...el.com> writes:

> [31mFAIL[0m vmx_EPT_AD_disabled (19 tests, 1 unexpected failures)

It seems the test is buggy: MMIO access is tested by reading ACPI
version from 0xfee00030 without putting APIC to xAPIC mode first. I'll
double check and send a patch to kvm-unit-test in case my guess is
correct.

Thanks,

-- 
Vitaly