RE: MSI CPU affinity for ARM64
Souradeep Chakrabarti <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.hackers,gmane.os.freebsd.devel.arm |
|---|---|
| Message-ID | <PSAP153MB0536FA12367A59EB8AA8C1FECCFE9@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM> |
> -----Original Message----- > From: Souradeep Chakrabarti > Sent: Saturday, January 7, 2023 8:24 PM > To: [email protected]; Li-Wen Hsu <[email protected]> > Cc: Wei Hu <[email protected]> > Subject: MSI CPU affinity for ARM64 > > Hi, > I am trying to understand how we can find the target CPU for MSI in ARM64. > When looking at gic_v3 code I can see following: > gic_v3_bind_intr( ) does mapping to next incremental CPU but gic_v3_dist_init( ) > does setup boot cpu as the target CPU for MSI interrupts. > > If I need to find the CPU bound with a particular MSI interrupt, how we can do that? > > Also is there a way get the the CPU id from the CPU affinity in ARM? > > Thanks & Regards, > Souradeep [Souradeep] Adding FreeBSD Hackers on the mail thread.