CVS commit: src/sys/arch

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

Module Name:    src
Committed By:   jdolecek
Date:           Mon May  4 15:55:57 UTC 2020

Modified Files:
        src/sys/arch/amd64/include: types.h
        src/sys/arch/i386/include: types.h
        src/sys/arch/x86/pci: msipic.c msipic.h pci_machdep.c
        src/sys/arch/xen/include: evtchn.h
        src/sys/arch/xen/x86: pintr.c xen_intr.c
        src/sys/arch/xen/xen: evtchn.c

Log Message:
add support for using MSI for XenPV Dom0

use PHYSDEVOP_map_pirq to get the pirq/gsi for MSI/MSI-X, switch also INTx
to use it instead of PHYSDEVOP_alloc_irq_vector

MSI confirmed working with single-vector MSI for wm(4), ahcisata(4), bge(4)

XXX added some provision for MSI-X, but it doesn't actually work (no interrupts
delivered), needs some further investigation; disable MSI-X for XENPV
via flag in x86/pci/pci_machdep.c


To generate a diff of this commit:
cvs rdiff -u -r1.67 -r1.68 src/sys/arch/amd64/include/types.h
cvs rdiff -u -r1.90 -r1.91 src/sys/arch/i386/include/types.h
cvs rdiff -u -r1.22 -r1.23 src/sys/arch/x86/pci/msipic.c
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/x86/pci/msipic.h
cvs rdiff -u -r1.86 -r1.87 src/sys/arch/x86/pci/pci_machdep.c
cvs rdiff -u -r1.30 -r1.31 src/sys/arch/xen/include/evtchn.h
cvs rdiff -u -r1.13 -r1.14 src/sys/arch/xen/x86/pintr.c
cvs rdiff -u -r1.24 -r1.25 src/sys/arch/xen/x86/xen_intr.c
cvs rdiff -u -r1.91 -r1.92 src/sys/arch/xen/xen/evtchn.c

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