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Subject: Re: [virtio-comment] [ERRATUM?] 5.5.6.3 Memory Statistics: 6 -> 10 byte
On Fri, May 24, 2019 at 11:35:47AM +0200, Philipp Hahn wrote: > Hello Michael, > > Am 24.05.19 um 05:39 schrieb Michael S. Tsirkin: > > On Thu, May 23, 2019 at 02:51:48PM +0200, Philipp Hahn wrote: > >> quoting > >> <https://docs.oasis-open.org/virtio/virtio/v1.1/cs01/virtio-v1.1-cs01.html#x1-2930003>: > >> > >>> Within the buffer, statistics are an array of 6-byte entries. > >> ^ > >>> Each statistic consists of a 16 bit tag and a 64 bit value. > >> ... > >>> struct virtio_balloon_stat { > >> ... > >>> le16 tag; > >>> le64 val; > >>> } __attribute__((packed)); > >> > >> If my calculation is right that is a (16 + 64) = 80 bits which is a > >> 10-byte sized entry - not 6-byte. > > > > > > Agreed. Want to open a github issue? > > Sure, here it is: <https://github.com/oasis-tcs/virtio-spec/issues/45> > > Patch attached and also available from > <https://github.com/univention/virtio-spec/commit/609dbbbe71fc9143c2849d2c9c2d481ec178ce30> > > Philipp > >From 609dbbbe71fc9143c2849d2c9c2d481ec178ce30 Mon Sep 17 00:00:00 2001 > Message-Id: <609dbbbe71fc9143c2849d2c9c2d481ec178ce30.1558690397.git.hahn@univention.de> > From: Philipp Hahn <hahn@univention.de> > Date: Fri, 24 May 2019 11:29:17 +0200 > Subject: [PATCH] Issue #45: Fix Memory Statistics structure size > > > Within the buffer, statistics are an array of 6-byte entries. > ^ > > Each statistic consists of a 16 bit tag and a 64 bit value. > ... > > struct virtio_balloon_stat { > ... > > le16 tag; > > le64 val; > > } __attribute__((packed)); > > If my calculation is right that is a (16 + 64) = 80 bits which is a > 10-byte sized entry - not 6-byte. > --- > content.tex | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/content.tex b/content.tex > index 193b6e1..dee1f28 100644 > --- a/content.tex > +++ b/content.tex > @@ -4766,7 +4766,7 @@ \subsubsection{Memory Statistics}\label{sec:Device Types / Memory Balloon Device > subsequent request) and consumes the statistics. > \end{enumerate} > > - Within the buffer, statistics are an array of 6-byte entries. > + Within the buffer, statistics are an array of 10-byte entries. > Each statistic consists of a 16 bit > tag and a 64 bit value. All statistics are optional and the > driver chooses which ones to supply. To guarantee backwards > -- > 2.11.0 > > Thanks! Unfortunately neither form gets the patch into our mailing list archives as required by the TC bylaws. See https://lists.oasis-open.org/archives/virtio-comment/201905/msg00014.html for what got archived. The thing to do is to include the patch inline in the message body. Thanks and sorry for the run-around! > > This publicly archived list offers a means to provide input to the > OASIS Virtual I/O Device (VIRTIO) TC. > > In order to verify user consent to the Feedback License terms and > to minimize spam in the list archive, subscription is required > before posting. > > Subscribe: virtio-comment-subscribe@lists.oasis-open.org > Unsubscribe: virtio-comment-unsubscribe@lists.oasis-open.org > List help: virtio-comment-help@lists.oasis-open.org > List archive: https://lists.oasis-open.org/archives/virtio-comment/ > Feedback License: https://www.oasis-open.org/who/ipr/feedback_license.pdf > List Guidelines: https://www.oasis-open.org/policies-guidelines/mailing-lists > Committee: https://www.oasis-open.org/committees/virtio/ > Join OASIS: https://www.oasis-open.org/join/
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