On Tue, May 12, 2026 at 07:08:19PM +0200, Roman Bogorodskiy wrote:
>   Daniel P. Berrangé wrote:
> 
> > On Mon, May 11, 2026 at 07:22:15PM +0200, Roman Bogorodskiy wrote:
> > > Implement QEMU Guest Agent support for bhyve. In bhyve it can configured
> > > using the virtio-console device.
> > > 
> > > This change covers only two APIs using the agent:
> > > 
> > >  - DomainQemuAgentCommand -- the most generic one.
> > >  - DomainGetHostname -- extended to support not only DHCP lease source,
> > >    but an agent as well.
> > > 
> > > There are two things that I'm not sure about this patch.
> > > 
> > >  - The protocol files were updated to make DomainQemuAgentCommand generic
> > >    instead of Qemu specific. QEMU_PROC_DOMAIN_AGENT_COMMAND was removed in
> > >    favor of REMOTE_PROC_DOMAIN_QEMU_AGENT_COMMAND.
> > > 
> > >    Even though the protocol is documented as private, I'm not sure how
> > >    desired this change is.
> > 
> > While we declare the extra protocols "Subject to change", we really
> > shouldn't change them without compelling reason, and I don't think
> > we have one. Either just add the new API in parallel with the old one,
> > or we could  declare that the bhyve driver uses the libvirt-qemu.so
> > library for QEMU guest agent interaction and not change the protocol
> > at all ?  Despite the name libvirt-qemu.so doesn't have a tight coupling
> > with thue QEMU driver.
> 
> It looks libvirt-qemu does not solve the issue. The main trigger for
> extending the protocol was the lack of ACL check in my
> bhyveDomainQemuAgentCommand() implementation. And as
> virDomainQemuAgentCommandEnsureACL() is available only
> in the generated access/viraccessapicheckqemu.h file, it does not seem
> there is a way I can use it.

Can you not #include "viraccessapicheckqemu.h"  it ?  AFAIR it is
tied to the QEMU driver in name only, no functional dep.

With regards,
Daniel
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