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From: Long Li <longli@microsoft.com>
To: thomas <thomas@monjalon.net>
CC: "dev@dpdk.org" <dev@dpdk.org>, Stephen Hemminger <sthemmin@microsoft.com>,
Jonathan Erb <jonathan.erb@banduracyber.com>, "stable@dpdk.org"
<stable@dpdk.org>
Thread-Topic: [dpdk-stable] [Patch v2] bus/vmbus: map to the correct ring
buffer addresses for the secondary process
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<1973433.8l5BURKI8a@thomas>
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Subject: Re: [dpdk-stable] [Patch v2] bus/vmbus: map to the correct ring
buffer addresses for the secondary process
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Sender: "stable" <stable-bounces@dpdk.org>
> Subject: Re: [dpdk-stable] [Patch v2] bus/vmbus: map to the correct ring =
buffer
> addresses for the secondary process
>=20
> 29/09/2021 22:46, longli@linuxonhyperv.com:
> > From: Long Li <longli@microsoft.com>
> >
> > The driver code had wrong assumption that all the addresses to ring
> > buffers in the secondary process are the same as those in the primary
> > process. This is not always correct as the channels could be mapped to
> > different addresses in the secondary process.
> >
> > Fix this by keeping track of all the mapped addresses from the primary
> > process in the shared uio_res, and have second process map to the same
> > addresses.
> >
> > Fixes: 831dba47bd36 ("bus/vmbus: add Hyper-V virtual bus support")
> >
> > Reported-by: Jonathan Erb <jonathan.erb@banduracyber.com>
> > Cc: stable@dpdk.org
> > Signed-off-by: Long Li <longli@microsoft.com>
>=20
> You forgot this ack from v1:
> Acked-by: Stephen Hemminger <sthemmin@microsoft.com>
Sorry, my bad.
Thank you!
>=20
> Applied, thanks
>=20