tree 31aedf2a15fa41d190c6ce087c67b30677d15445
parent 3ab16f4f71a4c0d56719d9e8d7dfcd53e0003eee
author Alex Legg <alexlegg@google.com> 1537338036 +1000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1537398998 +0000

[sysinfo] Add ioctl_sysinfo_get_interrupt_controller_info()

Returns information about the interrupt controller. Currently the only
information returned is the type, which may be APIC, GICv2, or GICv3. In
the future we might want to pass through more info like whether MSIs are
used etc.

TEST=sysinfo test and manually verify the values are correct on vim2,
kvm, and x64.

Change-Id: Ic1c1f7b7e1f9bbb8ba1a6dbd9023c3061b781d0f