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Feature #9829

want interface for posted-interrupt-request IPIs

Added by Patrick Mooney about 1 year ago. Updated about 1 year ago.

Status:
Closed
Priority:
Normal
Category:
kernel
Start date:
2018-09-10
Due date:
% Done:

100%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage

Description

Newer hypervisors (read: bhyve) can use Intel's APICv functionality to reduce the number of APIC-related guest exits by injecting interrupts into the guest via a posted-interrupt-request IPI. Rather than burdening that logic with knowledge of how IPIs are allocated/sent in our APIC modules, it would be nice to provide simple functions via the PSM to accomplish the task. This work is a combination of OS-6548 and OS-6837 in SmartOS.

History

#1

Updated by Electric Monk about 1 year ago

  • Status changed from In Progress to Closed
  • % Done changed from 0 to 100

git commit 1c2d047073bbce6a9b75c601e17fcaadf4060f52

commit  1c2d047073bbce6a9b75c601e17fcaadf4060f52
Author: Patrick Mooney <pmooney@pfmooney.com>
Date:   2018-09-19T13:47:26.000Z

    9829 want interface for posted-interrupt-request IPIs
    Reviewed by: Bryan Cantrill <bryan@joyent.com>
    Reviewed by: John Levon <john.levon@joyent.com>
    Reviewed by: Robert Mustacchi <rm@joyent.com>
    Reviewed by: Richard Lowe <richlowe@richlowe.net>
    Approved by: Dan McDonald <danmcd@joyent.com>

#2

Updated by Patrick Mooney about 1 year ago

RTI test notes: I tested a build of the gate to ensure that the expected IPI vector was allocated on during start-up and mdb properly identified it via the '::interrupts' dcmd.

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