Date: Thu, 13 Sep 2018 07:07:13 +0000 (UTC) From: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= <royger@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r338625 - head/sys/x86/xen Message-ID: <201809130707.w8D77DrV022764@repo.freebsd.org>
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Author: royger Date: Thu Sep 13 07:07:13 2018 New Revision: 338625 URL: https://svnweb.freebsd.org/changeset/base/338625 Log: xen: fix PV IPI setup So that it's done when the vcpu_id has been set. For the BSP the vcpu_id is set at SUB_INTR, while for the APs it's done in init_secondary_tail that's called at SUB_SMP order FIRST. Reported and tested by: cperciva Approved by: re (gjb) Sponsored by: Citrix Systems R&D Differential revision: https://reviews.freebsd.org/D17013 Modified: head/sys/x86/xen/xen_apic.c Modified: head/sys/x86/xen/xen_apic.c ============================================================================== --- head/sys/x86/xen/xen_apic.c Thu Sep 13 07:05:51 2018 (r338624) +++ head/sys/x86/xen/xen_apic.c Thu Sep 13 07:07:13 2018 (r338625) @@ -592,6 +592,6 @@ xen_setup_cpus(void) apic_ops.ipi_vectored = xen_pv_lapic_ipi_vectored; } -/* We need to setup IPIs before APs are started */ -SYSINIT(xen_setup_cpus, SI_SUB_SMP-1, SI_ORDER_FIRST, xen_setup_cpus, NULL); +/* Switch to using PV IPIs as soon as the vcpu_id is set. */ +SYSINIT(xen_setup_cpus, SI_SUB_SMP, SI_ORDER_SECOND, xen_setup_cpus, NULL); #endif /* SMP */
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