[Bug 222996] FreeBSD 11.1-12 on Hyper-V with PCI Express Pass Through

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222996

--- Comment #56 from commit-hook at FreeBSD.org ---
A commit in branch stable/12 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=e801c980e253d3f4087ef6d6b8fd382aed68d51c

commit e801c980e253d3f4087ef6d6b8fd382aed68d51c
Author:     Wei Hu <whu at FreeBSD.org>
AuthorDate: 2020-07-30 07:26:11 +0000
Commit:     Wei Hu <whu at FreeBSD.org>
CommitDate: 2021-03-15 04:47:18 +0000

    Prevent framebuffer mmio space from being allocated to other devices on
HyperV.

    On Gen2 VMs, Hyper-V provides mmio space for framebuffer.
    This mmio address range is not useable for other PCI devices.
    Currently only efifb driver is using this range without reserving
    it from system.
    Therefore, vmbus driver reserves it before any other PCI device
    drivers start to request mmio addresses.

    PR:             222996
    Submitted by:   weh at microsoft.com
    Reported by:    dmitry_kuleshov at ukr.net
    Reviewed by:    decui at microsoft.com
    Sponsored by:   Microsoft

    (cherry picked from commit c565776195f2f2b62427af07f6b1a9b7670cbc1f)

 sys/dev/hyperv/vmbus/vmbus.c | 57 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

-- 
You are receiving this mail because:
You are the assignee for the bug.