-----Original Message-----
From: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Sent: Tuesday, January 26, 2021 6:57 AM
To: linux-kernel@vger.kernel.org
Cc: KY Srinivasan <kys@microsoft.com>; Haiyang Zhang
[off-list ref]; Stephen Hemminger
[off-list ref]; Wei Liu [off-list ref]; Michael Kelley
[off-list ref]; linux-hyperv@vger.kernel.org; Tianyu Lan
[off-list ref]; Saruhan Karademir
[off-list ref]; Juan Vazquez [off-list ref]; Andrea
Parri (Microsoft) [off-list ref]; Jakub Kicinski
[off-list ref]; David S. Miller [off-list ref];
netdev@vger.kernel.org
Subject: [PATCH v2 4/4] hv_netvsc: Restrict configurations on isolated guests

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) <parri.andrea@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: netdev@vger.kernel.org

Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Thanks.