I've been in contact with Bob Ball at Citrix and he's passed on this
information after confirming the bug we're seeing. I was hoping
someone on the list could help track this down.
> I experienced the CDROM issue on XenServer 6.0 and 6.1. I've seen
> http://email@example.com/msg01369.html which
> suggests that there was a fix in Xen 4.1.2, which is surprising since
> XenServer 6.1 uses Xen 4.1.3 and still exhibits the problem.
> refers to another regression from 4.1.2 to 4.1.3 relating to the CDROM,
> but it appears as though this regression was not merged into XenServer
> (i.e. the Xen 4.1.3 used in XenServer did not require this further patch).
> gives one potential fix, which I believe is the one referenced in the
> release notes for 4.1 - however, I've applied this to my Xen and it
> does not appear to enable FreeBSD guests to boot with CDs attached.
> Could you confirm this from the other perspective and try the
> equivalent guest kernel patch?
> diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
> index 8214724..6b57f90 100644
> --- a/arch/x86/pci/xen.c
> +++ b/arch/x86/pci/xen.c
> @@ -308,8 +308,7 @@ int __init pci_xen_init(void)
> int __init pci_xen_hvm_init(void)
> - if (!xen_feature(XENFEAT_hvm_pirqs))
> - return 0;
> + return 0;
> #ifdef CONFIG_ACPI
> This appears to be a patch for Linux, and I've not located the
> equivalent file in FreeBSD (I'm assuming this is down to my
> inexperience in FreeBSD!)
> I believe that this probably means we have a problem in Xen with
> booting FreeBSD guests that hasn't been tracked down, would you agree?
> Have either of you seen this working on later versions of OpenSource
> Xen? (i.e. not XenServer?)
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