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Subject: Re: [PATCH v2] x86/kvm/vmx: Don't halt vcpu when L1 is injecting
 events to L2
To:     Chao Gao <chao.gao@intel.com>, kvm@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, x86@kernel.org,
        "H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        =?UTF-8?B?UmFkaW0gS3LEjW3DocWZ?= <rkrcmar@redhat.com>,
        Liran Alon <liran.alon@oracle.com>
References: <1518152952-12633-1-git-send-email-chao.gao@intel.com>
From:   Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <8654b592-c945-f66c-6c7c-f26cd3fa24f6@redhat.com>
Date:   Fri, 9 Feb 2018 13:43:24 +0100
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On 09/02/2018 06:09, Chao Gao wrote:
> Although L2 is in halt state, it will be in the active state after
> VM entry if the VM entry is vectoring according to SDM 26.6.2 Activity
> State. Halting the vcpu here means the event won't be injected to L2
> and this decision isn't reported to L1. Thus L0 drops an event that
> should be injected to L2.

Can you please write a testcase for kvm-unit-tests?

Thanks,

Paolo