x86, amd, xen: Avoid NULL pointer paravirt references
authorKonrad Rzeszutek Wilk <konrad@darnok.org>
Wed, 30 May 2012 22:23:56 +0000 (18:23 -0400)
committerH. Peter Anvin <hpa@zytor.com>
Wed, 30 May 2012 23:15:02 +0000 (16:15 -0700)
commit1ab46fd319bcf1fcd9fb6311727d532b580e4eba
treecf4b901b70c69e317c43e539a51256ae32d0d0b4
parent2da06af8106f8f35318bb084baf8448797ef058a
x86, amd, xen: Avoid NULL pointer paravirt references

Stub out MSR methods that aren't actually needed.  This fixes a crash
as Xen Dom0 on AMD Trinity systems.  A bigger patch should be added to
remove the paravirt machinery completely for the methods which
apparently have no users!

Reported-by: Andre Przywara <andre.przywara@amd.com>
Link: http://lkml.kernel.org/r/20120530222356.GA28417@andromeda.dapyr.net
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org>
arch/x86/xen/enlighten.c