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Re: [PATCH] x86: Add missing forward declaration and include to hvm/svm/vmcb.h


  • To: Alejandro Vallejo <alejandro.garciavallejo@xxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • Date: Mon, 6 Oct 2025 14:09:17 +0100
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  • Cc: Jan Beulich <jbeulich@xxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
  • Delivery-date: Mon, 06 Oct 2025 13:09:40 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 06/10/2025 12:29 pm, Alejandro Vallejo wrote:
> On Mon Oct 6, 2025 at 1:04 PM CEST, Andrew Cooper wrote:
>> On 06/10/2025 11:46 am, Alejandro Vallejo wrote:
>>> ---
>>> This dependency already exists today. I'm just making it explicit.
>>>
>>> "segment_register" is weird. It naturally belongs in vmcb.h, but the
>>> emulator makes use of it and must be compilable outside of Xen.
>>>
>>> I don't like having vmcb.h depending on the emulator header, but I see
>>> no way of breaking that dependency without breaking the emulator unit
>>> tests.
>> Pulling it into a new header is fine.  The emulator can include anything
>> (free-enough standing) in arch/x86/include/asm/
> I thought it didn't, if so I'm at a loss at to why segment_register is where
> it is.

Well - it's needed by the emulator as well as SVM.

>
> Be that as it may, your series conflicts with this patch and it makes no sense
> to keep both around (when none of them are going in for until 4.22).
>
> Will you be including a fix for the segment register in your series also? If 
> so,
> I'll just drop this one.

I've folded the extra include into my first patch.

~Andrew



 


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