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13 Commits

Author SHA1 Message Date
Neel Natu
77d8fd9bb3 Add counter to keep track of the number of timer interrupts generated by 
the local apic for each virtual cpu.
 2013-03-31 03:56:48 +00:00
Neel Natu
485f986ac9 Modify the default behavior of bhyve such that it no longer forces the use of 
x2apic mode on the guest.

The guest can decide whether or not it wants to use legacy mmio or x2apic
access to the APIC by writing to the MSR_APICBASE register.

Obtained from:	NetApp
 2012-12-16 01:20:08 +00:00
Neel Natu
2e25737a49 Calculate the number of host ticks until the next guest timer interrupt. 
This information will be used in conjunction with guest "HLT exiting" to
yield the thread hosting the virtual cpu.

Obtained from:	NetApp
 2012-10-20 08:23:05 +00:00
Neel Natu
73820fb0a4 Add an option "-a" to present the local apic in the XAPIC mode instead of the 
default X2APIC mode to the guest.
 2012-09-26 00:06:17 +00:00
Neel Natu
a2da7af6bc 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
Neel Natu
edf89256dd Add an explicit exit code 'SPINUP_AP' to tell the controlling process that an 
AP needs to be activated by spinning up an execution context for it.

The local apic emulation is now completely done in the hypervisor and it will
detect writes to the ICR_LO register that try to bring up the AP. In response
to such writes it will return to userspace with an exit code of SPINUP_AP.

Reviewed by: grehan
 2012-09-25 02:33:25 +00:00
Neel Natu
2d3a73ed6d Restructure the x2apic access code in preparation for supporting memory mapped 
access to the local apic.

The vlapic code is now aware of the mode that the guest is using to access the
local apic.

Reviewed by: grehan@
 2012-09-21 03:09:23 +00:00
Peter Grehan
cd942e0f25 MSI-x interrupt support for PCI pass-thru devices. 
Includes instruction emulation for memory r/w access. This
opens the door for io-apic, local apic, hpet timer, and
legacy device emulation.

Submitted by:	ryan dot berryhill at sandvine dot com
Reviewed by:	grehan
Obtained from:	Sandvine
 2012-04-28 16:28:00 +00:00
Ed Maste
2a5bbbe380 Remove duplicated license text. 2012-03-06 21:13:12 +00:00
Neel Natu
14ddf164ba Get rid of redundant initialization of 'dmask'. It was being re-initialized 
shortly afterwards.
 2011-07-06 21:40:48 +00:00
Peter Grehan
a5615c9044 IFC @ r222830 2011-06-28 06:26:03 +00:00
John Baldwin
34a6b2d627 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
Peter Grehan
366f60834f 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