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7818a1e029
Paravirt guests need to inform the underlying hypervisor whenever the sp0 tss field changes. i386 already has such a function, and we use it for x86_64 too. There's an unnecessary (for 64-bit) msr handling part in the original version, and it is placed around an ifdef. Making no more sense in processor_32.h, it is moved to the common header Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>