Description of problem:
When installing a new virtual machine (Windows XP guest), I see the following
SElinux denial


Summary:

SELinux is preventing qemu-system-x86 (virtd_t) "getsched" to <Unknown>
(virtd_t).

Detailed Description:

[SELinux is in permissive mode, the operation would have been denied but was
permitted due to permissive mode.]

SELinux denied access requested by qemu-system-x86. It is not expected that this
access is required by qemu-system-x86 and this access may signal an intrusion
attempt. It is also possible that the specific version or configuration of the
application is causing it to require additional access.

Allowing Access:

You can generate a local policy module to allow this access - see FAQ
(http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Or you can disable
SELinux protection altogether. Disabling SELinux protection is not recommended.
Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
against this package.

Additional Information:

Source Context                unconfined_u:system_r:virtd_t:s0
Target Context                unconfined_u:system_r:virtd_t:s0
Target Objects                None [ process ]
Source                        qemu-system-x86
Source Path                   /usr/bin/qemu-system-x86_64
Port                          <Unknown>
Host                          clfelspc001.dc.clf.rl.ac.uk
Source RPM Packages           qemu-0.9.1-5.fc9
Target RPM Packages           
Policy RPM                    selinux-policy-3.3.1-64.fc9
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Permissive
Plugin Name                   catchall
Host Name                     clfelspc001.dc.clf.rl.ac.uk
Platform                      Linux clfelspc001.dc.clf.rl.ac.uk
                              2.6.25.4-30.fc9.x86_64 #1 SMP Wed May 21 17:34:18
                              EDT 2008 x86_64 x86_64
Alert Count                   1
First Seen                    Thu 12 Jun 2008 03:49:02 PM BST
Last Seen                     Thu 12 Jun 2008 03:49:02 PM BST
Local ID                      82b7ce79-53c0-4c01-a008-85253adeea04
Line Numbers                  

Raw Audit Messages            

host=clfelspc001.dc.clf.rl.ac.uk type=AVC msg=audit(1213282142.958:2138): avc: 
denied  { getsched } for  pid=28649 comm="qemu-system-x86"
scontext=unconfined_u:system_r:virtd_t:s0
tcontext=unconfined_u:system_r:virtd_t:s0 tclass=process

host=clfelspc001.dc.clf.rl.ac.uk type=SYSCALL msg=audit(1213282142.958:2138):
arch=c000003e syscall=143 success=yes exit=0 a0=6fe9 a1=7f36272abae8
a2=7fff2f2ba490 a3=7fff2f2ba080 items=0 ppid=28585 pid=28649 auid=500 uid=0
gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=268
comm="qemu-system-x86" exe="/usr/bin/qemu-system-x86_64"
subj=unconfined_u:system_r:virtd_t:s0 key=(null)


# rpm -qa | grep selinux
libselinux-2.0.64-2.fc9.x86_64
selinux-policy-targeted-3.3.1-64.fc9.noarch
libselinux-python-2.0.64-2.fc9.x86_64
selinux-policy-3.3.1-64.fc9.noarch

# rpm -qa | grep virt
virt-manager-0.5.4-4.fc9.x86_64
libvirt-python-0.4.2-4.fc9.x86_64
libvirt-0.4.2-4.fc9.x86_64
python-virtinst-0.300.3-7.fc9.noarch

# rpm -qa | grep kvm
kvm-65-7.fc9.x86_64

# rpm -qa | grep qemu
qemu-0.9.1-5.fc9.x86_64
qemu-img-0.9.1-5.fc9.x86_64