freebsd-dev/sys/amd64/vmm
Alexander Motin c077e6287f Report ARAT (APIC-Timer-always-running) feature for virtual CPU.
This makes FreeBSD guest to not avoid using LAPIC timer, preferring HPET
due to worries about non-existing for virtual CPUs deep sleep states.

Benchmarks of usleep(1) on guest and host show such extra latencies:
 - 51us for virtual HPET,
 - 22us for virtual LAPIC timer,
 - 22us for host HPET and
 - 3us for host LAPIC timer.

MFC after:	2 weeks
2015-03-16 11:57:03 +00:00
..
amd Fix warnings/errors when building vmm.ko with gcc: 2015-03-02 20:13:49 +00:00
intel Use lapic_ipi_alloc() to dynamically allocate IPI slots needed by bhyve when 2015-03-14 02:32:08 +00:00
io Use lapic_ipi_alloc() to dynamically allocate IPI slots needed by bhyve when 2015-03-14 02:32:08 +00:00
vmm_dev.c Simplify instruction restart logic in bhyve. 2015-01-18 03:08:30 +00:00
vmm_host.c - Rework the XSAVE/XRSTOR emulation to only expose XCR0 features to the 2014-05-27 19:04:38 +00:00
vmm_host.h Add virtualized XSAVE support to bhyve which permits guests to use XSAVE and 2014-02-08 16:37:54 +00:00
vmm_instruction_emul.c MOVS instruction emulation. 2015-01-19 06:53:31 +00:00
vmm_ioport.c Fix typo (missing comma). 2015-01-14 07:18:51 +00:00
vmm_ioport.h Change the type of the first argument to the I/O emulation handlers to 2014-10-26 19:03:06 +00:00
vmm_ktr.h Add emulation of the "outsb" instruction. NetBSD guests use this to write to 2014-05-23 05:15:17 +00:00
vmm_lapic.c Use lapic_ipi_alloc() to dynamically allocate IPI slots needed by bhyve when 2015-03-14 02:32:08 +00:00
vmm_lapic.h Roll back botched partial MFC :( 2014-02-04 05:03:14 +00:00
vmm_mem.c Merge projects/bhyve_npt_pmap into head. 2013-10-05 21:22:35 +00:00
vmm_mem.h Merge projects/bhyve_npt_pmap into head. 2013-10-05 21:22:35 +00:00
vmm_stat.c Get rid of unused stat VMM_HLT_IGNORED. 2014-09-21 18:52:56 +00:00
vmm_stat.h Get rid of unused stat VMM_HLT_IGNORED. 2014-09-21 18:52:56 +00:00
vmm_util.c
vmm_util.h
vmm.c Use lapic_ipi_alloc() to dynamically allocate IPI slots needed by bhyve when 2015-03-14 02:32:08 +00:00
x86.c Report ARAT (APIC-Timer-always-running) feature for virtual CPU. 2015-03-16 11:57:03 +00:00
x86.h Allow CPUID leaf 0xD to be read as zeroes. 2013-09-06 05:16:10 +00:00