Commit Graph

8 Commits

Author SHA1 Message Date
Neel Natu
f5f87548b9 Fix panic "_mtx_lock_sleep: recursed on non-recursive mutex ttymtx" caused when
acquiring the tty lock in bvm_tty_close(). Instead just assert that the tty
lock is held before calling callout_reset().
2014-03-09 02:07:15 +00:00
John Baldwin
8044460976 - Use a callout instead of the deprecated timeout_handle.
- Set the console name always so that the bvm console device can be used
  via conscontrol even if it isn't chosen as the default console.
2014-02-07 15:10:24 +00:00
Neel Natu
1ea1e18490 Probe for existence of the bvm debug port instead of just assuming that it is
always present.

Suggested by:	grehan
Obtained from:	NetApp
2012-10-27 22:54:23 +00:00
Sean Bruno
fe5476a6e7 Update the byve console code with stubs for cngrab and cnungrab
Reviewed by:	grehan@
2012-01-04 17:01:12 +00:00
Peter Grehan
f9f4638d7a Allow the paravirtualized debug port to override others.
Obtained from:	NetApp
2011-11-07 19:53:20 +00:00
Peter Grehan
fab4c373af IFC @ r225592
sys/dev/bvm/bvm_console.c - move up to the new alt-break order.
2011-09-15 22:14:35 +00:00
Peter Grehan
1f3025e133 Changes to allow the GENERIC+bhye kernel built from this branch to
run as a 1/2 CPU guest on an 8.1 bhyve host.

bhyve/inout.c
      inout.h
      fbsdrun.c
 - Rather than exiting on accesses to unhandled i/o ports, emulate
   hardware by returning -1 on reads and ignoring writes to unhandled
   ports. Support the previous mode by allowing a 'strict' parameter
   to be set from the command line.
   The 8.1 guest kernel was vastly cut down from GENERIC and had no
   ISA devices. Booting GENERIC exposes a massive amount of random
   touching of i/o ports (hello syscons/vga/atkbdc).

bhyve/consport.c
dev/bvm/bvm_console.c
 - implement a simplistic signature for the bvm console by returning
   'bv' for an inw on the port. Also, set the priority of the console
   to CN_REMOTE if the signature was returned. This works better in
   an environment where multiple consoles are in the kernel (hello syscons)

bhyve/rtc.c
 - return 0 for the access to RTC_EQUIPMENT (yes, you syscons)

amd64/vmm/x86.c
          x86.h
 - hide a bunch more CPUID leaf 1 bits from the guest to prevent
   cpufreq drivers from probing.
   The next step will be to move CPUID handling completely into
   user-space. This will allow the full spectrum of changes from
   presenting a lowest-common-denominator CPU type/feature set, to
   exposing (almost) everything that the host can support.

Reviewed by:	neel
Obtained from:	NetApp
2011-05-19 21:53:25 +00:00
Peter Grehan
6c4c7d0f96 bhyve import part 2 of 2, guest kernel changes.
This branch is now considered frozen: future bhyve development will take
place in a branch off -CURRENT.

sys/dev/bvm/bvm_console.c
sys/dev/bvm/bvm_dbg.c
- simple console driver/gdb debug port used for bringup. supported
  by user-space bhyve executable

sys/conf/options.amd64
sys/amd64/amd64/minidump_machdep.c
- allow NKPT to be set in the kernel config file

sys/amd64/conf/GENERIC
- mptable config options; bhyve user-space executable creates an mptable
  with number of CPUs, and optional vendor extension
- add bvm console/debug
- set NKPT to 512 to allow loading of large RAM disks from the loader
- include kdb/gdb

sys/amd64/amd64/local_apic.c
sys/amd64/amd64/apic_vector.S
sys/amd64/include/specialreg.h
- if x2apic mode available, use MSRs to access the local APIC, otherwise
  fall back to 'classic' MMIO mode

sys/amd64/amd64/mp_machdep.c
- support AP spinup on CPU models that don't have real-mode support by
  overwriting the real-mode page with a message that supplies the bhyve
  user-space executable with enough information to start the AP directly
  in 64-bit mode.

sys/amd64/amd64/vm_machdep.c
- insert pause statements into cpu shutdown busy-wait loops

sys/dev/blackhole/blackhole.c
sys/modules/blackhole/Makefile
- boot-time loadable module that claims all PCI bus/slot/funcs specified
  in an env var that are to be used for PCI passthrough

sys/amd64/amd64/intr_machdep.c
- allow round-robin assignment of device interrupts to CPUs to be disabled
  from the loader

sys/amd64/include/bus.h
- convert string ins/outs instructions to loops of individual in/out since
  bhyve doesn't support these yet

sys/kern/subr_bus.c
- if the device was no created with a fixed devclass, then remove it's
  association with the devclass it was associated with during probe.
  Otherwise, new drivers do not get a chance to probe/attach since the
  device will stay married to the first driver that it probed successfully
  but failed to attach.

Sponsored by:	NetApp, Inc.
2011-05-14 18:37:24 +00:00