tree 572941849e9d63c0de7233d2352d346dc097be49
parent 3c62c62502bea24448d4e82aa1f33c7dbca61a32
author Glauber Costa <gcosta@redhat.com> 1205780920 -0300
committer Avi Kivity <avi@qumranet.com> 1209286831 +0300

x86: KVM guest: disable clock before rebooting.

This patch writes 0 (actually, what really matters is that the
LSB is cleared) to the system time msr before shutting down
the machine for kexec.

Without it, we can have a random memory location being written
when the guest comes back

It overrides the functions shutdown, used in the path of kernel_kexec() (sys.c)
and crash_shutdown, used in the path of crash_kexec() (kexec.c)

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>