royger 1184d559e6 msi: remove the check that interrupt sources have been added ... When running as a specific type of Xen guest the hypervisor won't provide any emulated IO-APICs or legacy PICs at all, thus hitting the following assert in the MSI code: panic: Assertion num_io_irqs > 0 failed at /usr/src/sys/x86/x86/msi.c:334 cpuid = 0 time = 1 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xffffffff826ffa70 vpanic() at vpanic+0x1a3/frame 0xffffffff826ffad0 panic() at panic+0x43/frame 0xffffffff826ffb30 msi_init() at msi_init+0xed/frame 0xffffffff826ffb40 apic_setup_io() at apic_setup_io+0x72/frame 0xffffffff826ffb50 mi_startup() at mi_startup+0x118/frame 0xffffffff826ffb70 start_kernel() at start_kernel+0x10 Fix this by removing the assert in the MSI code, since it's possible to get to the MSI initialization without having registered any other interrupt sources. Reviewed by: jhb Approved by: re (gjb) Sponsored by: Citrix Systems R&D Differential revision: https://reviews.freebsd.org/D17001		2018-09-13 07:05:51 +00:00
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acpica	Dynamically allocate IRQ ranges on x86.	2018-08-28 21:09:19 +00:00
bios	sys/x86: further adoption of SPDX licensing ID tags.	2017-11-27 15:11:47 +00:00
cpufreq	cpufreq: Remove error-prone table terminators in favor of automatic sizing	2018-04-14 03:15:05 +00:00
include	Dynamically allocate IRQ ranges on x86.	2018-08-28 21:09:19 +00:00
iommu	Dynamically allocate IRQ ranges on x86.	2018-08-28 21:09:19 +00:00
isa	Dynamically allocate IRQ ranges on x86.	2018-08-28 21:09:19 +00:00
pci	Add ISA PNP tables to ISA drivers. Fix a few incidental comments.	2018-01-29 00:22:30 +00:00
x86	msi: remove the check that interrupt sources have been added	2018-09-13 07:05:51 +00:00
xen	Dynamically allocate IRQ ranges on x86.	2018-08-28 21:09:19 +00:00