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freebsd-dev/sys/x86/x86
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Roger Pau Monné 5f05c79450 xen: implement an early timer for Xen PVH 
When running as a PVH guest, there's no emulated i8254, so we need to
use the Xen PV timer as the early source for DELAY. This change allows
for different implementations of the early DELAY function and
implements a Xen variant for it.

Approved by: gibbs
Sponsored by: Citrix Systems R&D

dev/xen/timer/timer.c:
dev/xen/timer/timer.h:
 - Implement Xen early delay functions using the PV timer and declare
   them.

x86/include/init.h:
 - Add hooks for early clock source initialization and early delay
   functions.

i386/i386/machdep.c:
pc98/pc98/machdep.c:
amd64/amd64/machdep.c:
 - Set early delay hooks to use the i8254 on bare metal.
 - Use clock_init (that will in turn make use of init_ops) to
   initialize the early clock source.

amd64/include/clock.h:
i386/include/clock.h:
 - Declare i8254_delay and clock_init.

i386/xen/clock.c:
 - Rename DELAY to i8254_delay.

x86/isa/clock.c:
 - Introduce clock_init that will take care of initializing the early
   clock by making use of the init_ops hooks.
 - Move non ISA related delay functions to the newly introduced delay
   file.

x86/x86/delay.c:
 - Add moved delay related functions.
 - Implement generic DELAY function that will use the init_ops hooks.

x86/xen/pv.c:
 - Set PVH hooks for the early delay related functions in init_ops.

conf/files.amd64:
conf/files.i386:
conf/files.pc98:
 - Add delay.c to the kernel build.
2014-03-11 10:20:42 +00:00
..
busdma_bounce.c Add a virtual table for the busdma methods on x86, to allow different 2013-10-27 22:05:10 +00:00
busdma_machdep.c Add a virtual table for the busdma methods on x86, to allow different 2013-10-27 22:05:10 +00:00
delay.c xen: implement an early timer for Xen PVH 2014-03-11 10:20:42 +00:00
dump_machdep.c free wdog_kern_pat calls in post-panic paths from under SW_WATCHDOG 2012-06-03 08:01:12 +00:00
fdt_machdep.c Add basic support for FDT to i386 & amd64. This change includes: 2013-05-21 03:05:49 +00:00
intr_machdep.c Drop the 3rd clause from all 3 clause BSD licenses where I am the sole 2014-02-05 18:13:27 +00:00
io_apic.c Drop the 3rd clause from all 3 clause BSD licenses where I am the sole 2014-02-05 18:13:27 +00:00
legacy.c
local_apic.c Move a warning about LINT pins configured with a level trigger under 2014-02-05 18:11:46 +00:00
mca.c Move <machine/apicvar.h> to <x86/apicvar.h>. 2014-01-23 20:10:22 +00:00
mptable_pci.c Add support for managing PCI bus numbers. As with BARs and PCI-PCI bridge 2014-02-12 04:30:37 +00:00
mptable.c Move <machine/apicvar.h> to <x86/apicvar.h>. 2014-01-23 20:10:22 +00:00
msi.c Move <machine/apicvar.h> to <x86/apicvar.h>. 2014-01-23 20:10:22 +00:00
nexus.c - Only check the ivars for direct descendants. 2014-01-20 17:55:22 +00:00
tsc.c Introduce kern.timecounter.smp_tsc_adjust tunable (disabled by default) and 2013-04-18 17:07:04 +00:00