Re: [Qemu-devel] [PATCH 0/1] Bug: Sandbox: libvirt breakdowns qemu guest

[Christian Borntraeger]

On 05/07/2018 05:32 AM, Yi Min Zhao wrote:
> 1. Problem Description
> ======================
> If QEMU is built without seccomp support, 'elevatorprivileges' remains 
> compiled.
> This option of sandbox is treated as an indication for seccomp blacklist 
> support
> in libvirt. This behavior is introduced by the libvirt commits 31ca6a5 and
> 3527f9d. It would make libvirt build wrong QEMU cmdline, and then the guest
> startup would fail.

Adding libvirt list.

This would still fail with older QEMUs, so the question is if we should also OR 
instead
change something in libvirt.

> 
> 2. Libvirt Log
> ==============
> qemu-system-s390x: -sandbox 
> on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
> resourcecontrol=deny: seccomp support is disabled
> 
> 3. Fixup
> ========
> Wrap the options except 'enable' for qemu_sandbox_opts by CONFIG_SECCOMP.
> 
> Yi Min Zhao (1):
>   sandbox: avoid to compile options if CONFIG_SECCOMP undefined
> 
>  vl.c | 2 ++
>  1 file changed, 2 insertions(+)
>