linux-kernel - Re: [PATCH v7 05/26] x86/fpu/xstate: Introduce fpu_guest

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Message-ID: <624e948558c013904695cb66af6f299890e3612a.camel@intel.com>
Date:   Thu, 30 Nov 2023 18:02:44 +0000
From:   "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To:     "Hansen, Dave" <dave.hansen@...el.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "Yang, Weijiang" <weijiang.yang@...el.com>,
        "pbonzini@...hat.com" <pbonzini@...hat.com>,
        "seanjc@...gle.com" <seanjc@...gle.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mlevitsk@...hat.com" <mlevitsk@...hat.com>
CC:     "peterz@...radead.org" <peterz@...radead.org>,
        "john.allen@....com" <john.allen@....com>,
        "Gao, Chao" <chao.gao@...el.com>
Subject: Re: [PATCH v7 05/26] x86/fpu/xstate: Introduce fpu_guest_cfg for
 guest FPU configuration

On Thu, 2023-11-30 at 19:29 +0200, Maxim Levitsky wrote:
> 2. It will affect output size of the KVM_GET_XSAVE2 ioctl, which
> outputs buffer similar to
> other FPU state buffers exposed to userspace (like one saved on
> signal stack, or one obtained via ptrace).

Ah! I missed this part. Thanks for the correction. So the original
comment is important and correct.