Re: [Xen-devel] [PATCH 17/19] x86/vmce, tools/libxl: expose LMCE capability in guest MSR_IA32_MCG_CAP

[Haozhong Zhang <haozhong.zhang@xxxxxxxxx>]

On 02/20/17 12:32 +0000, Wei Liu wrote:
> On Fri, Feb 17, 2017 at 02:39:34PM +0800, Haozhong Zhang wrote:
> > If LMCE is supported by host and "lmce = 1" is present in xl config, the
> > LMCE capability will be exposed in guest MSR_IA32_MCG_CAP. By default,
> > LMCE is not exposed to guest so as to keep the backwards migration
> > compatibility.
> > 
> > Signed-off-by: Haozhong Zhang <haozhong.zhang@xxxxxxxxx>
> 
> Sorry for this stupid question: what does L in LMCE stand for? Googling
> LMCE doesn't return useful result.
>

Local

> >  
> >  int libxl__build_pre(libxl__gc *gc, uint32_t domid,
> > diff --git a/tools/libxl/libxl_types.idl b/tools/libxl/libxl_types.idl
> > index a612d1f..3cb0d9a 100644
> > --- a/tools/libxl/libxl_types.idl
> > +++ b/tools/libxl/libxl_types.idl
> > @@ -550,6 +550,7 @@ libxl_domain_build_info = Struct("domain_build_info",[
> >                                         ("serial_list",      
> > libxl_string_list),
> >                                         ("rdm", libxl_rdm_reserve),
> >                                         ("rdm_mem_boundary_memkb", MemKB),
> > +                                       ("lmce",             libxl_defbool),
> 
> You also need to add LIBXL_HAVE_LMCE to libxl.h.
> 

will do

Thanks,
Haozhong

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