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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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It is a good idea to have a completely different stack during syscalls.
This commit implements a TSS IST entry for syscalls.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Keep track of how many times an interrupt fires, this can be used for
interrupt statistics later on.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Allow the intr_hand structure to carry driver specific and interrupt
related data so that it can be passed to an interrupt handler when it
is invoked.
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Replace intr_alloc_vector() with a cleaner and more machine independent
intr_register()
Signed-off-by: Ian Moffett <ian@osmora.org>
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Was supposed to happen on Jan 1, sorry! Happy late new year!
Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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Signed-off-by: Ian Moffett <ian@osmora.org>
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