kvm: i386: require KVM_CAP_XSAVE

This was introduced in KVM in Linux 2.6.36, and could already be used at
the time to save/restore FPU data even on older processor.  We can require
it unconditionally and stop using KVM_GET/SET_FPU.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
1 file changed