Date: Sat, 7 Jan 2023 14:53:32 +0000 From: Souradeep Chakrabarti <schakrabarti@microsoft.com> To: "freebsd-arm@FreeBSD.org" <freebsd-arm@FreeBSD.org>, Li-Wen Hsu <lwhsu@freebsd.org> Cc: Wei Hu <weh@microsoft.com> Subject: MSI CPU affinity for ARM64 Message-ID: <PSAP153MB0536DE0C63CFD99B65406F87CCF89@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>
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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_in= it( ) 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,=20 Souradeep
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