Re: [Qemu-devel] [PATCH v7 3/3] i386: populate floppy drive information in DSDT

[Roman Kagan <rkagan@virtuozzo.com>]

On Sun, Feb 07, 2016 at 11:08:07AM +0200, Michael S. Tsirkin wrote:
> On Tue, Jan 26, 2016 at 02:50:25PM +0100, Igor Mammedov wrote:
> > From: Roman Kagan <rkagan@virtuozzo.com>
> > -static Aml *build_fdc_device_aml(void)
> > +static Aml *build_fdinfo_aml(int idx, uint8_t type, uint8_t cylinders,
> > +                             uint8_t heads, uint8_t sectors)
> 
> acpi spec says these are WORD values. Are they really uint8_t?

Yes, see struct FDrive.

> > +    fdi = aml_package(0x10);
> 
> Why 0x10 and not 16?

I'm unaware of the difference...  If you have any preference I'll
adjust.  (Originally I stuck with hex because so did iasl -d and the
then hand-written ASL).

> > +    aml_append(fdi, aml_int(idx));  /* Drive Number */
> > +    aml_append(fdi,
> > +        aml_int(cmos_get_fd_drive_type(type)));  /* Device Type */
> > +    aml_append(fdi,
> > +        aml_int(cylinders - 1));  /* Maximum Cylinder Number */
> > +    aml_append(fdi, aml_int(sectors));  /* Maximum Sector Number */
> > +    aml_append(fdi, aml_int(heads - 1));  /* Maximum Head Number */
> 
> Doesn't above change on media change?

I guess no, because this IMHO is supposed to describe the drive
properties, not the diskette properties.  But I'll double-check.

I'm confused about the status of this patchset: I saw you post a pull
request with this series last week, and now you review it.  What should
I do now in response to your comments: rework and resubmit it or post
incremental fixes on top of it?

Thanks,
Roman.