Yang, Sheng wrote: > --- /dev/null > +++ b/arch/x86/kvm/i8254.h ... > +#define PIT_BASE_ADDRESS 0x40 > +#define SPEAKER_BASE_ADDRESS 0x61 > +#define PIT_MEM_LENGTH 4 > +#define PIT_FREQ 1193181
The PIT may not be limited to x86 platforms. So I would propose to make the setup more generic and flexible. And I would move the code out of arch/x86, just the speaker support should remain there. I'm currently struggling with emulating a proprietary platform that has (among other specialties...) a different PIT base frequency, and I already had to patch user space qemu for customizable frequencies. Maybe this kernel extension is a good chance to generalize the PIT setup, and I would be happy to contribute to this if there is a consensus. Jan -- Siemens AG, Corporate Technology, CT SE 2 Corporate Competence Center Embedded Linux ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
