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24 Commits

Author SHA1 Message Date
neel
e16d18eeb8 Use lapic_ipi_alloc() to dynamically allocate IPI slots needed by bhyve when 
vmm.ko is loaded.

Also relocate the 'justreturn' IPI handler to be alongside all other handlers.

Requested by:	kib
 2015-03-14 02:32:08 +00:00
neel
7aa6460c48 Replace bhyve's minimal RTC emulation with a fully featured one in vmm.ko. 
The new RTC emulation supports all interrupt modes: periodic, update ended
and alarm. It is also capable of maintaining the date/time and NVRAM contents
across virtual machine reset. Also, the date/time fields can now be modified
by the guest.

Since bhyve now emulates both the PIT and the RTC there is no need for
"Legacy Replacement Routing" in the HPET so get rid of it.

The RTC device state can be inspected via bhyvectl as follows:
bhyvectl --vm=vm --get-rtc-time
bhyvectl --vm=vm --set-rtc-time=<unix_time_secs>
bhyvectl --vm=vm --rtc-nvram-offset=<offset> --get-rtc-nvram
bhyvectl --vm=vm --rtc-nvram-offset=<offset> --set-rtc-nvram=<value>

Reviewed by:	tychon
Discussed with:	grehan
Differential Revision:	https://reviews.freebsd.org/D1385
MFC after:	2 weeks
 2014-12-30 22:19:34 +00:00
imp
6cdb9e2a29 Retire the '@' symlink. It isn't really needed and causes more 
problems than it solves. SYSDIR is already defined almost always and
can be used instead. Working around the one case where it isn't is
much easier than working around the fact that @ may not exist in 18
other places.

Differential Revision: https://reviews.freebsd.org/D1100
 2014-11-06 16:48:37 +00:00
jhb
7567389b20 Add foo_genassym.c files to DPSRCS so dependencies for them are generated. 
This ensures these objects are rebuilt to generate an updated header of
assembly constants if needed.
 2014-10-27 18:37:11 +00:00
neel
eb58530f9b Move the ACPI PM timer emulation into vmm.ko. 
This reduces variability during timer calibration by keeping the emulation
"close" to the guest. Additionally having all timer emulations in the kernel
will ease the transition to a per-VM clock source (as opposed to using the
host's uptime keep track of time).

Discussed with:	grehan
 2014-10-26 04:44:28 +00:00
neel
dd2febd6f2 IFC @r273214 2014-10-20 02:57:30 +00:00
neel
ef294abb97 IFC r271888. 
Restructure MSR emulation so it is all done in processor-specific code.
 2014-09-20 21:46:31 +00:00
grehan
95f7c2f56c MFC @ r266724 
An SVM update will follow this.
 2014-06-03 02:34:21 +00:00
tychon
58699bc5fc Move the atpit device model from userspace into vmm.ko for better 
precision and lower latency.

Approved by:	grehan (co-mentor)
 2014-03-25 19:20:34 +00:00
tychon
25c8b61cfd Replace the userspace atpic stub with a more functional vmm.ko model. 
New ioctls VM_ISA_ASSERT_IRQ, VM_ISA_DEASSERT_IRQ and VM_ISA_PULSE_IRQ
can be used to manipulate the pic, and optionally the ioapic, pin state.

Reviewed by:	jhb, neel
Approved by:	neel (co-mentor)
 2014-03-11 16:56:00 +00:00
grehan
db98868c2f MFC @ r259205 in preparation for some SVM updates. (for real this time) 2014-02-04 06:59:08 +00:00
neel
89dbc92028 Add HPET device emulation to bhyve. 
bhyve supports a single timer block with 8 timers. The timers are all 32-bit
and capable of being operated in periodic mode. All timers support interrupt
delivery using MSI. Timers 0 and 1 also support legacy interrupt routing.

At the moment the timers are not connected to any ioapic pins but that will
be addressed in a subsequent commit.

This change is based on a patch from Tycho Nightingale (tycho.nightingale@pluribusnetworks.com).
 2013-11-25 19:04:51 +00:00
neel
384d86e888 Move the ioapic device model from userspace into vmm.ko. This is needed for 
upcoming in-kernel device emulations like the HPET.

The ioctls VM_IOAPIC_ASSERT_IRQ and VM_IOAPIC_DEASSERT_IRQ are used to
manipulate the ioapic pin state.

Discussed with:	grehan@
Submitted by:	Tycho Nightingale (tycho.nightingale@pluribusnetworks.com)
 2013-11-12 22:51:03 +00:00
neel
94bdd999bb Remove the 'vdev' abstraction that was meant to sit on top of device models 
in the kernel. This abstraction was redundant because the only device emulated
inside vmm.ko is the local apic and it is always at a fixed guest physical
address.

Discussed with:	grehan
 2013-11-04 23:25:07 +00:00
grehan
d919ede3d3 IFC @ r255692 
Comment out IA32_MISC_ENABLE MSR access - this doesn't exist on AMD.
Need to sort out how arch-specific MSRs will be handled.
 2013-09-20 00:46:29 +00:00
grehan
74160a9a77 Add in last remaining files to get AMD-SVM operational. 
Submitted by:	Anish Gupta (akgupt3@gmail.com)
 2013-08-23 00:37:26 +00:00
uqs
d87537a2b0 Fix 'make depend'. 2013-08-21 08:01:52 +00:00
neel
9631d598cc Corral all the host state associated with the virtual machine into its own file. 
This state is independent of the type of hardware assist used so there is
really no need for it to be in Intel-specific code.

Obtained from:	NetApp
 2012-10-29 01:51:24 +00:00
neel
bc269b51af Add support for trapping MMIO writes to local apic registers and emulating them. 
The default behavior is still to present the local apic to the guest in the
x2apic mode.
 2012-09-25 22:31:35 +00:00
grehan
c105a845c4 BHyVe's vmm.ko can now be built with the in-tree binutils. 
Many thanks to jhb@ for making this happen.
 2012-07-11 23:12:17 +00:00
jhb
bcc4a489b1 Missed this in the previous commit to add 'show vmcs': add opt_ddb.h as 
a source file.
 2011-06-02 13:57:10 +00:00
neel
692383a3a7 Remove misleading macro definition (-DOLD_BINUTILS) from CFLAGS. 
At this point we require binutils from ports that understands how to
assemble the VT-x instructions.

Discussed with: grehan@
 2011-05-17 13:47:32 +00:00
jhb
f115a4513c First cut at porting the kernel portions of 221828 and 221905 from the 
BHyVe reference branch to HEAD.
 2011-05-14 20:35:01 +00:00
grehan
d45b7f14ae Import of bhyve hypervisor and utilities, part 1. 
vmm.ko - kernel module for VT-x, VT-d and hypervisor control
  bhyve  - user-space sequencer and i/o emulation
  vmmctl - dump of hypervisor register state
  libvmm - front-end to vmm.ko chardev interface

bhyve was designed and implemented by Neel Natu.

Thanks to the following folk from NetApp who helped to make this available:
	Joe CaraDonna
	Peter Snyder
	Jeff Heller
	Sandeep Mann
	Steve Miller
	Brian Pawlowski
 2011-05-13 04:54:01 +00:00