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Re: [qemu-s390x] [PATCH 10/15] s390-bios: Support for running format-0/1
Re: [qemu-s390x] [PATCH 10/15] s390-bios: Support for running format-0/1 channel programs
Thu, 10 Jan 2019 13:15:13 +0100
On Wed, 9 Jan 2019 15:01:19 -0500
"Jason J. Herne" <address@hidden> wrote:
> On 1/9/19 1:34 PM, Cornelia Huck wrote:
> > On Wed, 9 Jan 2019 13:10:26 -0500
> > "Jason J. Herne" <address@hidden> wrote:
> >> I'm not sure what value there is in abstracting sense at the moment. I'm
> >> not even sure
> >> what other device's sense data looks like. Since my description of the
> >> SENSE CCW comes
> >> from an ECKD reference I have not been able to verify any areas of the
> >> data that are
> >> common across device types. Thoughts?
> > There's SA22-7204-01 ("Common I/O Device Commands"), which is from 1992
> > (this is what I have on my disk -- is there anything newer?). It
> > specifies what bits 0-5 of byte 0 mean and states that bytes 1-31 are
> > optional and device-specific.
> > Maybe some other bits have been specified after 1992, but I have not
> > come across documentation for them.
> That publication is no longer available. According to my quick research it
> has been
> replaced by an internal only publication. I'll see what I can find.
The publication no longer being available is not good, as it is a
normative reference pointed to by the virtio standard (see
Is there any chance that at least that old version can be made
Re: [qemu-s390x] [PATCH 10/15] s390-bios: Support for running format-0/1 channel programs, Jason J. Herne, 2019/01/14