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Add x86 specific APIs 'lapic_ipi_alloc()' and 'lapic_ipi_free()' to allow IPI

Description

Add x86 specific APIs 'lapic_ipi_alloc()' and 'lapic_ipi_free()' to allow IPI
vectors to be dynamically allocated. This allows kernel modules like vmm.ko
to allocate unique IPI slots when loaded (as opposed to hard allocating one
or more vectors).

Also, reorganize the fixed IPI vectors to create a contiguous space for
dynamic IPI allocation.

Reviewed by: kib, jhb
Differential Revision: https://reviews.freebsd.org/D2042

Details

Committed
neelMar 14 2015, 12:30 AM
Reviewer
jhb
Differential Revision
D2042: APIs to dynamically allocate and free IPI slots.
Parents
rS279969: cxgbe(4): fix if_media handling for T520-BT cards. 1Gbps and 100Mbps
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