On Thu, Nov 24 2022 at 03:01, Kevin Tian wrote: >> From: Thomas Gleixner <tglx@xxxxxxxxxxxxx> >> @@ -15,6 +15,7 @@ struct device; >> */ >> enum msi_domain_ids { >> MSI_DEFAULT_DOMAIN, >> + MSI_SECONDARY_DOMAIN, >> MSI_MAX_DEVICE_IRQDOMAINS, > > SECONDARY or be explicit IMS? Are we envisioning non-IMS usages to > occupy this slot in the future? I'm not really decided on that. Whatever the name or use-case for a secondary domain is. Not, that this is not restricted to PCI. Thanks, tglx