freebsd-dev/sys/amd64
Neel Natu a268481428 Do proper ASID management for guest vcpus.
Prior to this change an ASID was hard allocated to a guest and shared by all
its vcpus. The meant that the number of VMs that could be created was limited
to the number of ASIDs supported by the CPU. It was also inefficient because
it forced a TLB flush on every VMRUN.

With this change the number of guests that can be created is independent of
the number of available ASIDs. Also, the TLB is flushed only when a new ASID
is allocated.

Discussed with:	grehan
Reviewed by:	Anish Gupta (akgupt3@gmail.com)
2014-09-06 19:02:52 +00:00
..
acpica don't set CR4 PSE bit on amd64 2014-07-23 15:53:29 +00:00
amd64 IFC @r269962 2014-09-02 04:22:42 +00:00
conf Add vt(4) devices and options to NOTES 2014-07-01 00:22:54 +00:00
ia32 x86: Allow users to change PSL_RF via ptrace(PT_SETREGS...) 2013-11-14 15:37:20 +00:00
include Merge all MD sf_buf allocators into one MI, residing in kern/subr_sfbuf.c 2014-08-05 09:44:10 +00:00
linux32 Revert r266925 as it can lead to instant panic at fexecve(): 2014-06-17 05:29:18 +00:00
pci Pull in r267961 and r267973 again. Fix for issues reported will follow. 2014-06-28 03:56:17 +00:00
vmm Do proper ASID management for guest vcpus. 2014-09-06 19:02:52 +00:00
Makefile Adjustments to make a tags file a bit more suitable to amd64. 2008-12-01 14:15:10 +00:00