freebsd-dev/sys/x86
Konstantin Belousov 46ed9da5fc Do not spuriously re-enable disabled io_apic pin on EOI for some configurations.
If EOI suppression is supported but reported ioapic version is so old
that it does not has EOI register (weird virtualization setup), fix
Intel trick of eoi-ing by flipping pin type (edge/level) to account
for the disabled pin.

Reported by:	Juniper
Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Differential revision:	https://reviews.freebsd.org/D23965
2020-03-18 21:34:52 +00:00
..
acpica Fix IBRS for machines with IBRS_ALL capability. 2020-02-25 17:26:10 +00:00
bios Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
conf Floppy driver really only works on x86 2019-08-12 22:58:50 +00:00
cpufreq Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
include Fix IBRS for machines with IBRS_ALL capability. 2020-02-25 17:26:10 +00:00
iommu Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
isa Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) 2020-02-26 14:26:36 +00:00
pci Add pci_early function to detect Intel stolen memory. 2018-10-31 23:17:00 +00:00
x86 Do not spuriously re-enable disabled io_apic pin on EOI for some configurations. 2020-03-18 21:34:52 +00:00
xen xen: fix dispatching of NMIs 2019-11-12 10:31:28 +00:00