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Re: [PATCH 2/3] x86/trampoline: Move the trampoline declarations out of <asm/config.h>
- To: Jan Beulich <jbeulich@xxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Thu, 5 Sep 2024 16:48:18 +0100
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- Cc: Roger Pau Monné <roger.pau@xxxxxxxxxx>, Frediano Ziglio <frediano.ziglio@xxxxxxxxx>, Alejandro Vallejo <alejandro.vallejo@xxxxxxxxx>, Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 05 Sep 2024 15:48:24 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05/09/2024 4:47 pm, Jan Beulich wrote:
> On 05.09.2024 17:45, Andrew Cooper wrote:
>> On 05/09/2024 4:35 pm, Jan Beulich wrote:
>>> On 05.09.2024 15:06, Andrew Cooper wrote:
>>>> asm/config.h is included in every translation unit (via xen/config.h),
>>>> while
>>>> only a handful of functions actually interact with the trampoline.
>>>>
>>>> Move the infrastructure into its own header, and take the opportunity to
>>>> document everything.
>>>>
>>>> Also change trampoline_realmode_entry() and wakeup_start() to be nocall
>>>> functions, rather than char arrays.
>>>>
>>>> No functional change.
>>>>
>>>> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
>>> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
>> Thanks.
>>
>>>> --- /dev/null
>>>> +++ b/xen/arch/x86/include/asm/trampoline.h
>>>> @@ -0,0 +1,98 @@
>>>> +/* SPDX-License-Identifier: GPL-2.0-or-later */
>>>> +#ifndef XEN_ASM_TRAMPOLINE_H
>>>> +#define XEN_ASM_TRAMPOLINE_H
>>> Not exactly usual a guard name, but once the new naming scheme is finalized
>>> most will need renaming anyway.
>> What would you prefer?
> X86_ASM_TRAMPOLINE_H would likely be closer to what we use elsewhere.
Fine. I'll adjust.
~Andrew
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