Module Name: src Committed By: martin Date: Tue Nov 21 11:01:02 UTC 2017
Modified Files: src/sys/arch/amd64/include [netbsd-8]: i82093reg.h src/sys/arch/i386/include [netbsd-8]: i82093reg.h src/sys/arch/x86/x86 [netbsd-8]: ioapic.c Log Message: Pull up following revision(s) (requested by nakayama in ticket #359): sys/arch/amd64/include/i82093reg.h: revision 1.9 sys/arch/x86/x86/ioapic.c: revision 1.54 sys/arch/i386/include/i82093reg.h: revision 1.11 Don't write a 1 to the read only RIRR bit in the IOAPIC redirection register to fix "tlp0: filter setup and transmit timeout" observed on Hyper-V VMs with the Legacy Network Adapter. >From OpenBSD via PR kern/49323: https://marc.info/?l=openbsd-cvs&m=146718035432599&w=2 Modified files: sys/arch/amd64/amd64: ioapic.c sys/arch/amd64/include: i82093reg.h Log message: Don't write a 1 to the RIRR bit in the IOAPIC redirection register. This bit is R/O, and although it should not matter what value is written there, Hyper-V's emulated IOAPIC interprets a write of 1 in some unexpected way and subsequently blocks interrupt delivery. This primarily manifests itself as de(4) timeouts when using Hyper-V VMs with the "Legacy Network Adapter" interface. Tested both amd64 and i386 on Client Hyper-V on Windows 10. To generate a diff of this commit: cvs rdiff -u -r1.8 -r1.8.2.1 src/sys/arch/amd64/include/i82093reg.h cvs rdiff -u -r1.10 -r1.10.2.1 src/sys/arch/i386/include/i82093reg.h cvs rdiff -u -r1.52 -r1.52.10.1 src/sys/arch/x86/x86/ioapic.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.