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Re: [PATCH v8 13/20] xen/riscv: introduce (de)initialization helpers for vINTC
- To: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 3 Sep 2026 13:16:47 +0200
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- Cc: Romain Caritey <Romain.Caritey@xxxxxxxxxxxxx>, Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>, Zheng Zhang <zhangzheng@xxxxxxxxxxx>, Alistair Francis <alistair.francis@xxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 03 Sep 2026 11:16:57 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 03.09.2026 12:49, Oleksii Kurochko wrote:
> On 9/3/26 11:20 AM, Jan Beulich wrote:
>> On 27.08.2026 17:19, Oleksii Kurochko wrote:
>>> Add common helpers domain_vintc_init() and domain_vintc_deinit() to
>>> allocate and deallocate a virtual interrupt controller (vINTC)
>>> structure and initialize basic virtual interrupt controller registers.
>>>
>>> domain_vintc_deinit() isn't called at the moment as arch_domain_destroy()
>>> is implemented as stub at the moment.
>>>
>>> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
>>> ---
>>> Changes in v8:
>>> - Add call of domain_vintc_deinit() to arch_domain_destroy().
>>
>> Why only there? With ...
>>
>>> @@ -308,6 +310,9 @@ int arch_domain_create(struct domain *d,
>>> if ( (rc = p2m_init(d, config)) != 0)
>>> goto fail;
>>>
>>> + if ( (rc = domain_vintc_init(d)) )
>>> + goto fail;
>>> +
>>> return rc;
>>
>> ... anything added between the newly added code and the return, ...
>>
>>> fail:
>>
>> ... you will also need to call it here. Since it is (supposed to remain)
>> idempotent, I think you'd better add that call right away (as long as
>> domain_create() calls arch_domain_destroy() only when
>> arch_domain_create() succeeded).
>
> arch_domain_destroy() (where domain_vintc_deinit() is called) is invoked
> from arch_domain_create() if arch_domain_create() fails.
Ah yes, so ...
> So, the mentioned case is already covered. Am I missing something?
... no, you aren't. I was; sorry.
Jan
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