Re: [RFC KERNEL PATCH v6 3/3] xen/privcmd: Add new syscall to get gsi from irq

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On 10.05.24 12:13, Chen, Jiqian wrote:
On 2024/5/10 17:53, Jürgen Groß wrote:
On 10.05.24 11:06, Chen, Jiqian wrote:

On 2024/5/10 14:46, Jürgen Groß wrote:
On 19.04.24 05:36, Jiqian Chen wrote:
+    info->type = IRQT_PIRQ;
I am considering whether I need to use a new type(like IRQT_GSI) here to distinguish with IRQT_PIRQ, because function restore_pirqs will process all IRQT_PIRQ.

restore_pirqs() already considers gsi == 0 to be not GSI related. Isn't this
No, it is not enough.
xen_pvh_add_gsi_irq_map adds the mapping of gsi and irq, but the value of gsi is not 0,
once restore_pirqs is called, it will do PHYSDEVOP_map_pirq for that gsi, but in pvh dom0, we shouldn't do PHYSDEVOP_map_pirq.

Okay, then add a new flag to info->u.pirq.flags for that purpose?


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