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Date:   Wed, 20 Jan 2021 17:26:44 -0800
From:   Jakub Kicinski <>
To:     "Andrea Parri (Microsoft)" <>
        "K . Y . Srinivasan" <>,
        Haiyang Zhang <>,
        Stephen Hemminger <>,
        Wei Liu <>,
        Michael Kelley <>,
        Tianyu Lan <>,
        Saruhan Karademir <>,
        Juan Vazquez <>,,
        "David S. Miller" <>,
Subject: Re: [PATCH 4/4] hv_netvsc: Restrict configurations on isolated

On Tue, 19 Jan 2021 18:58:41 +0100 Andrea Parri (Microsoft) wrote:
> Restrict the NVSP protocol version(s) that will be negotiated with the
> host to be NVSP_PROTOCOL_VERSION_61 or greater if the guest is running
> isolated.  Moreover, do not advertise the SR-IOV capability and ignore
> NVSP_MSG_4_TYPE_SEND_VF_ASSOCIATION messages in isolated guests, which
> are not supposed to support SR-IOV.  This reduces the footprint of the
> code that will be exercised by Confidential VMs and hence the exposure
> to bugs and vulnerabilities.
> Signed-off-by: Andrea Parri (Microsoft) <>
> Cc: "David S. Miller" <>
> Cc: Jakub Kicinski <>
> Cc:

Nothing exciting here from networking perspective, so:

Acked-by: Jakub Kicinski <>

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