Messages in this thread | | | Date | Thu, 04 Dec 2014 18:29:03 +0100 | From | Paolo Bonzini <> | Subject | Re: [PATCH 1/9] x86: export get_xsave_addr |
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On 04/12/2014 17:34, Greg KH wrote: > On Thu, Dec 04, 2014 at 04:57:06PM +0100, Paolo Bonzini wrote: >> > get_xsave_addr is the API to access XSAVE states, and KVM would >> > like to use it. Export it. > Use it in what way?
As in patch 2/9, to avoid that upgrading to a newer processor breaks userspace ABI.
>> > Cc: stable@vger.kernel.org > Why is this a stable patch?
Because as of now, Skylake processors have a different userspace ABI than previous generations.
Paolo
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