Il 22/05/2013 22:19, Theodore Ts'o ha scritto: > On Wed, May 22, 2013 at 09:37:54PM +0200, Paolo Bonzini wrote: >>> If it's not theoretical, how does the cloud service control who has >>> access to the CD burner, and how are the disks loaded into the CD >>> burner? >> >> CD burning would be used in a VM that runs on your local workstation, so >> the VM gets access to the CD burner under your desk. There was also a >> developer of a CD burning tool that wanted to test it inside BSD, >> Solaris and Windows VMs; the idea is the same. > > So in both cases all of the VM's and the host OS are within the same > trust boundary. This simplifies the security requirements than in the > more generic cloud server caser where the VM's are mutually > suspicious. This simplifies the requirements of what we need to push > into the kernel, yes? What do you mean by "push into the kernel"? (Anyway the CD burner case is really the only one that the current whitelist covers completely. I was just listing it as a use case for SG_IO in the context as virtualization). Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
