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kvmclock: Fix feature detection
Bit-wise or the feature flags and drop the obsolete #ifdef.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
kvm: Drop CONFIG_KVM_PARA
The kvm_para.h header is now always available.
kvm: create kvmclock when one of the flags are present
kvmclock presence can be signalled by two different flags. So fordevice creation, we have to test for both.
Signed-off-by: Glauber Costa <glommer@redhat.com>Signed-off-by: Avi Kivity <avi@redhat.com>
kvm: x86: Introduce kvmclock device to save/restore its state
If kvmclock is used, which implies the kernel supports it, register akvmclock device with the sysbus. Its main purpose is to save and restorethe kernel state on migration, but this will also allow to visualize it...