Author: sephe Date: Fri Sep 30 06:08:21 2016 New Revision: 306481 URL: https://svnweb.freebsd.org/changeset/base/306481
Log: x86/ioapic: Fix destination cpu for Hyper-V On Hyper-V: - Stick to the first cpu for all I/O APIC pins. - And don't allow destination cpu changes. Reviewed by: jhb MFC after: 1 week Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D7949 Modified: head/sys/x86/x86/io_apic.c Modified: head/sys/x86/x86/io_apic.c ============================================================================== --- head/sys/x86/x86/io_apic.c Fri Sep 30 05:51:11 2016 (r306480) +++ head/sys/x86/x86/io_apic.c Fri Sep 30 06:08:21 2016 (r306481) @@ -412,6 +412,18 @@ ioapic_assign_cpu(struct intsrc *isrc, u u_int old_id; /* + * On Hyper-V: + * - Stick to the first cpu for all I/O APIC pins. + * - And don't allow destination cpu changes. + */ + if (vm_guest == VM_GUEST_HV) { + if (intpin->io_vector) + return (EINVAL); + else + apic_id = 0; + } + + /* * keep 1st core as the destination for NMI */ if (intpin->io_irq == IRQ_NMI) _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
