On Mon, Jun 11, 2018 at 03:56:40PM +0800, Tiwei Bie wrote:
> Suggested-by: Michael S. Tsirkin <m...@redhat.com>
> Signed-off-by: Tiwei Bie <tiwei....@intel.com>
> Fixes: https://github.com/oasis-tcs/virtio-spec/issues/14
Acked-by: Michael S. Tsirkin <m...@redhat.com>
> ---
> v2:
> - Refine the wording (Cornelia);
>
> v3:
> - Refine the wording (MST);
>
> content.tex | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/content.tex b/content.tex
> index f996fad..3c7d67d 100644
> --- a/content.tex
> +++ b/content.tex
> @@ -125,6 +125,13 @@ which was not offered. The device SHOULD accept any
> valid subset
> of features the driver accepts, otherwise it MUST fail to set the
> FEATURES_OK \field{device status} bit when the driver writes it.
>
> +If a device has successfully negotiated a set of features
> +at least once (by accepting the FEATURES_OK \field{device
> +status} bit during device initialization), then it SHOULD
> +NOT fail re-negotiation of the same set of features after
> +a device or system reset. Failure to do so would interfere
> +with resuming from suspend and error recovery.
> +
> \subsection{Legacy Interface: A Note on Feature
> Bits}\label{sec:Basic Facilities of a Virtio Device / Feature
> Bits / Legacy Interface: A Note on Feature Bits}
> --
> 2.17.0
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