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Re: [PATCH] x86: reduce dependencies on x86_emulate/x86_emulate.h
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 5 Aug 2026 12:43:23 +0200
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- Cc: Teddy Astie <teddy.astie@xxxxxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 05 Aug 2026 10:43:33 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05.08.2026 12:38, Andrew Cooper wrote:
> On 05/08/2026 9:29 am, Jan Beulich wrote:
>> Split out struct x86_event to an entirely separate header, and move a few
>> other items describing the architecture to a new x86-types.h. With a few
>> forward decls of structures and with a fair number of new #include-s in
>> .c files, the inclusion of x86_emulate.h (and hence
>> x86_emulate/x86_emulate.h) can be dropped from all header files except
>> hvm/emulate.h; it needs additionally adding to hvm/ioreq.h though.
>>
>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>
> This looks broadly fine.
>
> However, I don't see any hunks downgrading arch/x86/hvm/svm/vmcb.h from
> x86_emulate.h to x86-types.h. It needs struct segment_register, but
> nothing else I can spot.
Hmm, yes, I can apparently convert that as well. I was really after tidying
non-private headers, primarily.
>> --- /dev/null
>> +++ b/xen/arch/x86/include/asm/x86-types.h
>> @@ -0,0 +1,76 @@
>> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>> +/*
>> + * x86-types.h
>> + *
>> + * Type definitions and basic helpers which are more or less directly
>> + * describing aspects of the architecture.
>> + */
>> +
>> +#ifndef X86_X86_TYPES_H
>> +#define X86_X86_TYPES_H
>> +
>> +#ifdef __XEN__
>> +# include <xen/types.h>
>> +#else
>> +# include <stdint.h>
>> +#endif
>> +
>> +/*
>> + * Comprehensive enumeration of x86 segment registers.
>
> This comment has become stale with the recent additions. I'd be tempted
> to simply drop "registers" from this sentence while you move it.
Can do, sure.
Jan
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