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Re: [Xen-devel] [PATCH v12 3/9] tools: provide interface for generic MSR access

>>> On 09.07.14 at 18:58, <ian.campbell@xxxxxxxxxx> wrote:
> On Fri, 2014-07-04 at 12:42 +0100, Jan Beulich wrote:
>> >>> On 04.07.14 at 10:34, <dongxiao.xu@xxxxxxxxx> wrote:
>> > Xen added a new sysctl hypercall for generic MSR access, and this is the
>> > tool side change to wrapper the hypercall into xc APIs.
>> s/sysctl/platform op/
> is platform_op really the right umbrella for this stuff? platform_op.h
> says:
>  * Hardware platform operations. Intended for use by domain-0 kernel.
> Which in particular I suppose has API stability implications.

Yeah, I think Dongxiao earlier also got trapped by this comment. It's
origin predates thinking about disaggregation, and hence it's really
stale at this point: Hardware operations aren't necessarily limited to
Dom0 (they might be limited to hardware_domain, but that in the end
is a XSM policy decision).


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