Re: [PATCH 1/9] x86: export get_xsave_addr

From: Paolo Bonzini
Date: Thu Dec 04 2014 - 12:29:26 EST

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@xxxxxxxxxxxxxxx
> Why is this a stable patch?

Because as of now, Skylake processors have a different userspace ABI
than previous generations.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at