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CVS commit: [bouyer-xenpvh] src/sys/arch

Module Name:    src
Committed By:   bouyer
Date:           Sat Apr 11 18:26:08 UTC 2020

Modified Files:
        src/sys/arch/amd64/amd64 [bouyer-xenpvh]: lock_stubs.S spl.S
        src/sys/arch/i386/i386 [bouyer-xenpvh]: spl.S
        src/sys/arch/x86/conf [bouyer-xenpvh]: files.x86
        src/sys/arch/x86/include [bouyer-xenpvh]: intr.h
        src/sys/arch/x86/x86 [bouyer-xenpvh]: intr.c x86_machdep.c
        src/sys/arch/xen/conf [bouyer-xenpvh]: files.xen
        src/sys/arch/xen/include [bouyer-xenpvh]: intrdefs.h
        src/sys/arch/xen/x86 [bouyer-xenpvh]: xen_ipi.c xenfunc.c
        src/sys/arch/xen/xen [bouyer-xenpvh]: clock.c
Added Files:
        src/sys/arch/x86/x86 [bouyer-xenpvh]: x86_softintr.c

Log Message:
Move softint and preemtion-related functions out of x86/x86/intr.c to
  its own file, x86/x86/x86_softintr.c
Add x86/x86/x86_softintr.c for native and XenPV
Make sure XenPV also check ci_ioending, which is used for softints.
Switch XenPV to fast softints and allow kernel preemption.
kpreempt_disable() before calling pmap_changeprot_local()
run  xen_wallclock_time() and xen_global_systime_ns() at splshed() to
  avoid being interrupted.

XXX amd64 lock stubs are racy for XPENDING

To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.35.6.1 src/sys/arch/amd64/amd64/lock_stubs.S
cvs rdiff -u -r1.43.4.4 -r1.43.4.5 src/sys/arch/amd64/amd64/spl.S
cvs rdiff -u -r1.50.4.3 -r1.50.4.4 src/sys/arch/i386/i386/spl.S
cvs rdiff -u -r1.107 -r1.107.10.1 src/sys/arch/x86/conf/files.x86
cvs rdiff -u -r1.61.6.1 -r1.61.6.2 src/sys/arch/x86/include/intr.h
cvs rdiff -u -r1.150 -r1.150.6.1 src/sys/arch/x86/x86/intr.c
cvs rdiff -u -r1.137.2.2 -r1.137.2.3 src/sys/arch/x86/x86/x86_machdep.c
cvs rdiff -u -r0 -r1.1.2.1 src/sys/arch/x86/x86/x86_softintr.c
cvs rdiff -u -r1.180 -r1.180.2.1 src/sys/arch/xen/conf/files.xen
cvs rdiff -u -r1.15 -r1.15.2.1 src/sys/arch/xen/include/intrdefs.h
cvs rdiff -u -r1.35 -r1.35.6.1 src/sys/arch/xen/x86/xen_ipi.c
cvs rdiff -u -r1.26 -r1.26.8.1 src/sys/arch/xen/x86/xenfunc.c
cvs rdiff -u -r1.80 -r1.80.6.1 src/sys/arch/xen/xen/clock.c

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

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