Jan Kiszka wrote:
The in-kernel speaker emulation is only a dummy and also unneeded from the performance point of view. Rather, it takes user space support to generate sound output on the host, e.g. console beeps. To allow this, introduce KVM_CREATE_PIT_NOSPKR which is simply KVM_CREATE_PIT without registration of the speaker_dev.
Nothing wrong with the patch, but let's make it a little more forward looking. Have a CREATE_PIT2 (or something) which accepts a structure with a flags field and some padding. Define the first flag as speaker in kernel vs speaker in userspace.
This would allow us to hack the PIT some more in the future if we find we need too.
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