CVS commit: src/sys/arch

["Jaromir Dolecek" <jdolecek%netbsd.org@localhost>]

Module Name:    src
Committed By:   jdolecek
Date:           Sun Jul 19 14:27:07 UTC 2020

Modified Files:
        src/sys/arch/x86/pci: pci_msi_machdep.c
        src/sys/arch/xen/include: intr.h
        src/sys/arch/xen/x86: pintr.c

Log Message:
for Xen MSI, fallback to INTx when PHYSDEVOP_map_pirq fails for the device

apparently Xen requires VT-d to be enabled in BIOS for PHYSDEVOP_map_pirq
to work, this change makes it work on systems with VT-d disabled or missing

adresses the panic part of PR port-xen/55285 by Patrick Welche


To generate a diff of this commit:
cvs rdiff -u -r1.13 -r1.14 src/sys/arch/x86/pci/pci_msi_machdep.c
cvs rdiff -u -r1.57 -r1.58 src/sys/arch/xen/include/intr.h
cvs rdiff -u -r1.17 -r1.18 src/sys/arch/xen/x86/pintr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.