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This commit assigns the halt IPI its own vector so that it may be
dispatched fast without needing to go through the IPI path as it is
typically used only in very sensitive situations.
Signed-off-by: Ian Moffett <ian@osmora.org>
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The previous IPI framework design was quite an overengineered mess
thanks to our friend, Φ of the body.
- Use a flat array instead of a weird bitmap
- Only use one ISR and chain the functions
Signed-off-by: Ian Moffett <ian@osmora.org>
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This commit greatly improves the handling of how inter-processor
interrupts are allocated and managed. Previously Hyra used handlers at
fixed interrupt vectors for IPIs, however, that is very rigid and not
very scalable at all. With the new IPI framework, one may allocate IPIs
by calling 'md_ipi_alloc()' and initializing the handler field.
To send an IPI to a specific processor, one can use cpu_ipi_send() and
pass the specific CPU structure as well as the IPI identifier.
Signed-off-by: Ian Moffett <ian@osmora.org>
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