Konstantin Belousov 4c918926cd Add x2APIC support. Enable it by default if CPU is capable. The ... hw.x2apic_enable tunable allows disabling it from the loader prompt. To closely repeat effects of the uncached memory ops when accessing registers in the xAPIC mode, the x2APIC writes to MSRs are preceeded by mfence, except for the EOI notifications. This is probably too strict, only ICR writes to send IPI require serialization to ensure that other CPUs see the previous actions when IPI is delivered. This may be changed later. In vmm justreturn IPI handler, call doreti_iret instead of doing iretd inline, to handle corner conditions. Note that the patch only switches LAPICs into x2APIC mode. It does not enables FreeBSD to support > 255 CPUs, which requires parsing x2APIC MADT entries and doing interrupts remapping, but is the required step on the way. Reviewed by: neel Tested by: pho (real hardware), neel (on bhyve) Discussed with: jhb, grehan Sponsored by: The FreeBSD Foundation MFC after: 2 months		2015-02-09 21:00:56 +00:00
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altq/altq	Remove ifq_drops from struct ifqueue. Now queue drops are accounted in	2014-09-19 09:01:19 +00:00
dev	Add x2APIC support. Enable it by default if CPU is capable. The	2015-02-09 21:00:56 +00:00
ipfilter/netinet	In order to reduce use of M_EXT outside of the mbuf allocator and	2015-01-06 12:59:37 +00:00
libfdt
ngatm	Fix the following -Werror warning from clang 3.5.0, while building	2014-11-19 07:47:37 +00:00
octeon-sdk
rdma/krping	Add missing linuxapi module dependencies and always use the FreeBSD	2015-01-19 21:53:00 +00:00
v4l	Fix build for gcc users by declaring variables for unions in structs which	2013-07-10 10:40:52 +00:00
vchiq/interface	Do not mark shared structures as __packed, it leads to race condition	2015-02-09 02:31:27 +00:00
x86emu	Fix decoding of near CALL when address-size prefix (67h) is present.	2014-06-11 20:38:14 +00:00
xz-embedded	MFV r262756:	2014-03-05 01:33:15 +00:00