On Fri, Jul 17, 2015 at 03:24:34PM -0400, Programmingkid wrote:
>
> On Jul 17, 2015, at 9:41 AM, Stefan Hajnoczi wrote:
>
> > On Thu, Jul 16, 2015 at 04:46:07PM -0400, Programmingkid wrote:
> >> @@ -2014,7 +2015,9 @@ kern_return_t GetBSDPath( io_iterator_t
> >> mediaIterator, char *bsdPath, CFIndex ma
> >> if ( bsdPathAsCFString ) {
> >> size_t devPathLength;
> >> strcpy( bsdPath, _PATH_DEV );
> >> - strcat( bsdPath, "r" );
> >> + if (flags & BDRV_O_NOCACHE) {
> >> + strcat(bsdPath, "r");
> >> + }
> >> devPathLength = strlen( bsdPath );
> >> if ( CFStringGetCString( bsdPathAsCFString, bsdPath +
> >> devPathLength, maxPathSize - devPathLength, kCFStringEncodingASCII ) ) {
> >> kernResult = KERN_SUCCESS;
> >
> > Is this the fix that makes CD-ROM passthrough work for you?
> >
> > Does the guest boot successfully when you do:
> >
> > -drive if=ide,media=cdrom,cache=none,file=/dev/cdrom
>
> The guest fails during the boot process with the above command line. That means the issue you originally hit hasn't been solved yet. Take a look at s->needs_alignment and raw_probe_alignment(). In the -drive cache=none case raw-posix needs to detect the correct alignment (probably 2 KB for CD-ROMs). Stefan
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