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.
--
Do not meddle in the internals of kernels, for they are subtle and quick to
panic.
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