Skip site navigation (1)Skip section navigation (2)
Date:      Tue, 23 Feb 2016 21:39:34 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 207447] Add hw.pci.honor_msi_blacklist=0 to GCE images
Message-ID:  <bug-207447-8@https.bugs.freebsd.org/bugzilla/>

next in thread | raw e-mail | index | archive | help

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207447

            Bug ID: 207447
           Summary: Add hw.pci.honor_msi_blacklist=0 to GCE images
           Product: Base System
           Version: 10.3-BETA2
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: misc
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: wac@google.com
                CC: freebsd-amd64@FreeBSD.org
                CC: freebsd-amd64@FreeBSD.org

Due to the way Google Compute Engine currently populates the virtual PCI bus it
presents to VMs, sys/dev/pci/pci.c's pci_msi_blacklisted() blocks use of MSI.
Since there is no 0:0:0 bridge device the existing workarounds there, such as
the one for qemu, won't work.

Adding hw.pci.honor_msi_blacklist=0 to /boot/loader.conf on the images intended
for Google Compute Engine will allow use of MSI, which is supported by the
platform.

Efforts are underway to make this unnecessary, but are unlikely to be complete
before 10.3-RELEASE.

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


Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-207447-8>