KVM: Detect Extended Destination ID support
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Authored by cperciva on Sun, Feb 22, 4:10 AM.

Details

Reviewers: None

Summary

KVM advertises support for the Extended Destination ID standard via
bit 15 of the value returned in the EAX register when KVM features
are queried via CPUID.

MFC after: 2 weeks

Diff Detail

Repository

rG FreeBSD src repository

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Unit

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Build Status

Buildable 70926
Build 67809: arc lint + arc unit

Event Timeline

cperciva created this revision.Sun, Feb 22, 4:10 AM

Herald added a subscriber: imp. · View Herald TranscriptSun, Feb 22, 4:10 AM

cperciva requested review of this revision.Sun, Feb 22, 4:10 AM

cperciva added a parent revision: D55426: msi: Support APIC Extended Destination IDs.

cperciva added a child revision: D55428: x86/cpuid: add CPUID flag for Extended Destination ID support.

Harbormaster completed remote builds in B70866: Diff 172426.Sun, Feb 22, 4:11 AM

Only enable if ext_dest_id is set to -1.

Harbormaster completed remote builds in B70926: Diff 172538.Mon, Feb 23, 7:53 PM

Revision Contents
Changeset List

Path

Size

sys/

x86/

include/

kvm.h

1 line

x86/

msi.c

12 lines

Diff 172538

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sys/x86/include/kvm.h