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freebsd-nq/sys/amd64/include
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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
..
pc - Add a new structure type for the ACPI 3.0 SMAP entry that includes the 2014-08-29 21:25:47 +00:00
xen xen: implement the privcmd user-space device 2014-10-22 17:07:20 +00:00
_align.h
_bus.h
_inttypes.h
_limits.h Copy amd64 _limits.h to x86 and merge with i386 _limits.h. Replace 2012-02-28 18:24:28 +00:00
_stdint.h Copy amd64 _stdint.h to x86 and merge with i386 _stdint.h. Replace 2012-02-28 18:38:33 +00:00
_types.h Copy amd64 _types.h to x86 and merge with i386 _types.h. Replace existing 2012-02-28 18:15:28 +00:00
acpica_machdep.h Merge acpica_machdep.h for amd64 and i386 and move to x86. In fact, these 2013-08-13 22:05:10 +00:00
apm_bios.h
asm.h Revert r274772: it is not valid on MIPS 2014-11-25 03:50:31 +00:00
asmacros.h Extend earlier addition of stack frames to most of support.S. This makes 2014-11-13 22:11:44 +00:00
atomic.h Remove empty lines before return statements for style consistency. 2013-08-21 22:05:58 +00:00
bus_dma.h
bus.h
clock.h xen: implement an early timer for Xen PVH 2014-03-11 10:20:42 +00:00
counter.h Fix issues with zeroing and fetching the counters, on x86 and ppc64. 2013-07-01 02:48:27 +00:00
cpu.h amd64/i386: introduce APIC hooks for different APIC implementations. 2014-06-16 08:43:03 +00:00
cpufunc.h Add x2APIC support. Enable it by default if CPU is capable. The 2015-02-09 21:00:56 +00:00
cputypes.h
db_machdep.h
dump.h Factor out duplicated code from dumpsys() on each architecture into generic 2015-01-07 01:01:39 +00:00
elf.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
endian.h Copy amd64 endian.h to x86 and merge with i386 endian.h. Replace 2012-02-28 19:39:54 +00:00
exec.h
fdt.h Add basic support for FDT to i386 & amd64. This change includes: 2013-05-21 03:05:49 +00:00
float.h Copy amd64 float.h to x86 and merge with i386 float.h. Replace 2012-03-04 14:00:32 +00:00
floatingpoint.h
fpu.h Create a separate structure for per-CPU state saved across suspend and 2014-09-06 15:23:28 +00:00
frame.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
gdb_machdep.h
ieeefp.h
in_cksum.h MFp4 bz_ipv6_fast: 2012-05-24 22:00:48 +00:00
intr_machdep.h Add support for suspend/resume/migration operations when running as a 2013-09-20 05:06:03 +00:00
iodev.h
kdb.h
limits.h
md_var.h For x86, read MAXPHYADDR, defined in SDM vol 3 4.1.4 Enumeration of Paging 2015-01-12 07:36:25 +00:00
memdev.h
metadata.h loader: implement multiboot support for Xen Dom0 2015-01-15 16:27:20 +00:00
minidump.h
mp_watchdog.h
nexusvar.h
npx.h Move userland bits of i386 npx.h and amd64 fpu.h to x86 fpu.h. 2012-03-16 20:24:30 +00:00
ofw_machdep.h Add basic support for FDT to i386 & amd64. This change includes: 2013-05-21 03:05:49 +00:00
param.h Bump MAXCPU on amd64 from 64 to 256. In practice APIC only permits 255 2014-08-20 16:06:24 +00:00
pcb.h Create a separate structure for per-CPU state saved across suspend and 2014-09-06 15:23:28 +00:00
pci_cfgreg.h
pcpu.h Formalize the concept of virtual CPU ids by adding a per-cpu vcpu_id 2013-10-05 23:11:01 +00:00
pmap.h amd64: make uiomove_fromphys functional for pages not mapped by the DMAP 2014-10-24 09:48:58 +00:00
pmc_mdep.h Add software PMC support. 2012-03-28 20:58:30 +00:00
ppireg.h
proc.h Handle spurious page faults that may occur in no-fault sections of the 2012-03-22 04:52:51 +00:00
profile.h
psl.h Copy i386 psl.h to x86 and replace amd64/i386/pc98 psl.h with stubs. 2012-03-19 21:29:57 +00:00
ptrace.h Copy amd64 ptrace.h to x86 and merge with i386 ptrace.h. Replace 2012-03-04 20:24:28 +00:00
pvclock.h Generalized parts of the XEN timer code into a generic pvclock 2015-02-04 08:26:43 +00:00
reg.h Copy i386 reg.h to x86 and merge with amd64 reg.h. Replace i386/amd64/pc98 2012-03-18 19:06:38 +00:00
reloc.h
resource.h Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge 2014-02-12 04:30:37 +00:00
runq.h
segments.h Hide struct pcb definition by #ifdef __amd64__ braces. If cc -m32 2013-11-26 19:38:42 +00:00
setjmp.h Copy amd64 setjmp.h to x86 and replace amd64/i386/pc98 setjmp.h with stubs. 2012-02-28 22:17:52 +00:00
sf_buf.h Merge all MD sf_buf allocators into one MI, residing in kern/subr_sfbuf.c 2014-08-05 09:44:10 +00:00
sigframe.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
signal.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
smp.h xen: add a hook to perform AP startup 2014-03-11 10:27:57 +00:00
specialreg.h Copy i386 specialreg.h to x86 and merge with amd64 specialreg.h. Replace 2012-03-19 21:34:11 +00:00
stack.h
stdarg.h Copy amd64 stdarg.h to x86 and replace amd64/i386/pc98 stdarg.h with stubs. 2012-02-28 22:30:58 +00:00
sysarch.h Copy amd64 sysarch.h to x86 and merge with i386 sysarch.h. Replace 2012-03-19 21:57:31 +00:00
timerreg.h
trap.h Copy amd64 trap.h to x86 and replace amd64/i386/pc98 trap.h with stubs. 2012-03-04 14:12:57 +00:00
tss.h
ucontext.h Convert machine/elf.h, machine/frame.h, machine/sigframe.h, 2013-02-20 17:39:52 +00:00
varargs.h
vdso.h Implement mechanism to export some kernel timekeeping data to 2012-06-22 07:06:40 +00:00
vm.h - Rename VM_MEMATTR_UNCACHED to VM_MEMATTR_WEAK_UNCACHEABLE on x86 to 2012-03-29 16:51:22 +00:00
vmm_dev.h Simplify instruction restart logic in bhyve. 2015-01-18 03:08:30 +00:00
vmm_instruction_emul.h AMD processors that have the SVM decode assist capability will store the 2014-09-13 22:16:40 +00:00
vmm.h MOVS instruction emulation. 2015-01-19 06:53:31 +00:00
vmparam.h Revert r276600: PHYS_TO_DMAP_RAW() and DMAP_TO_PHYS_RAW() are no 2015-01-12 07:50:55 +00:00