Move FreeBSD from interface version 0x00030204 to 0x00030208.
Updates are required to our grant table implementation before we
can bump this further.
sys/xen/hvm.h:
Replace the implementation of hvm_get_parameter(), formerly located
in sys/xen/interface/hvm/params.h. Linux has a similar file which
primarily stores this function.
sys/xen/xenstore/xenstore.c:
Include new xen/hvm.h header file to get hvm_get_parameter().
sys/amd64/include/xen/xen-os.h:
sys/i386/include/xen/xen-os.h:
Correctly protect function definition and variables from being
included into assembly files in xen-os.h
Xen memory barriers are now prefixed with "xen_" to avoid conflicts
with OS native primatives. Define Xen memory barriers in terms of
the native FreeBSD primatives.
Sponsored by: Spectra Logic Corporation
Reviewed by: Roger Pau Monné
Tested by: Roger Pau Monné
Obtained from: Roger Pau Monné (bug fixes)
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