Module Name: src
Committed By: cherry
Date: Tue Feb 12 08:04:53 UTC 2019
Modified Files:
src/sys/arch/xen/include: xenfunc.h
src/sys/arch/xen/x86: xen_intr.c
Log Message:
Move xen event related code which interfaces with the NetBSD interrupt
subsystem into a separate namespace where it can co-exist with the
native equivalent in PVHVM mode.
On PV, we alias and export the native symbols - this means that
although the namespace is different, the semantics must be identical.
Eg: xen_intr_establish_xname() vs. intr_establish_xname().
The specific functions we need in PVHVM are:
- spllower, xen_spllower (for native as well as XEN event spl
despatch/defer)
- xen_disable_intr()/xen_enable_intr() ,
x86_disable_intr()/x86_enable_intr()
- xen_read_psl()/xen_write_psl(),
x86_read_psl()/x86_write_psl()
- intr_establish() et. al, xen_intr_establish() et. al.
This gives us the ability to manage Paravirtualised drivers such as
xbd(4) as well as fully emulated ones such as wd(4)., for eg
To generate a diff of this commit:
cvs rdiff -u -r1.16 -r1.17 src/sys/arch/xen/include/xenfunc.h
cvs rdiff -u -r1.13 -r1.14 src/sys/arch/xen/x86/xen_intr.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
