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Re: [RFC XEN PATCH v8 5/5] domctl: Add XEN_DOMCTL_gsi_permission to grant gsi
- To: "Chen, Jiqian" <Jiqian.Chen@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 6 Jun 2024 08:14:29 +0200
- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony@xxxxxxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, "Hildebrand, Stewart" <Stewart.Hildebrand@xxxxxxx>, "Huang, Ray" <Ray.Huang@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, "Daniel P . Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 06 Jun 2024 06:14:55 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05.06.2024 12:22, Chen, Jiqian wrote:
> On 2024/6/5 18:09, Jan Beulich wrote:
>> On 05.06.2024 09:04, Chen, Jiqian wrote:
>>> For now, if hypervisor gets a high GSIs, it can't be transformed to irq,
>>> because there is no mapping between them.
>>
>> No, in the absence of a source override (note the word "override") the
>> default identity mapping applies.
> What is identity mapping?
GSI == IRQ
Jan
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