Zachary Amsden cc578287e3 KVM: Infrastructure for software and hardware based TSC rate scaling ... This requires some restructuring; rather than use 'virtual_tsc_khz' to indicate whether hardware rate scaling is in effect, we consider each VCPU to always have a virtual TSC rate. Instead, there is new logic above the vendor-specific hardware scaling that decides whether it is even necessary to use and updates all rate variables used by common code. This means we can simply query the virtual rate at any point, which is needed for software rate scaling. There is also now a threshold added to the TSC rate scaling; minor differences and variations of measured TSC rate can accidentally provoke rate scaling to be used when it is not needed. Instead, we have a tolerance variable called tsc_tolerance_ppm, which is the maximum variation from user requested rate at which scaling will be used. The default is 250ppm, which is the half the threshold for NTP adjustment, allowing for some hardware variation. In the event that hardware rate scaling is not available, we can kludge a bit by forcing TSC catchup to turn on when a faster than hardware speed has been requested, but there is nothing available yet for the reverse case; this requires a trap and emulate software implementation for RDTSC, which is still forthcoming. [avi: fix 64-bit division on i386] Signed-off-by: Zachary Amsden <zamsden@gmail.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>		2012-03-08 14:09:35 +02:00
..
numachip	x86: Add NumaChip support	2011-12-05 17:17:24 +01:00
uv	x86/uv: Fix uv_gpa_to_soc_phys_ram() shift	2012-01-26 10:58:27 +01:00
visws
xen	Merge branch 'upstream/xen-settime' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen	2011-11-06 20:15:05 -08:00
a.out-core.h
a.out.h
acpi.h
aes.h
agp.h
alternative-asm.h	x86: Fix atomic64_xxx_cx8() functions	2012-01-04 15:01:56 +01:00
alternative.h	asm alternatives: remove incorrect alignment notes	2011-09-15 13:28:33 -07:00
amd_nb.h	x86/PCI: amd: factor out MMCONFIG discovery	2012-01-06 12:11:19 -08:00
apb_timer.h	Merge branch 'timers-clocksource-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-23 10:34:47 -07:00
apic.h	x86, x2apic: Allow "nox2apic" to disable x2apic mode setup by BIOS	2011-12-23 11:01:43 -08:00
apic_flat_64.h	x86: Make flat_init_apic_ldr() available	2011-12-05 17:17:07 +01:00
apicdef.h	x86, x2apic: Fallback to xapic when BIOS doesn't setup interrupt-remapping	2011-12-23 11:01:01 -08:00
apm.h
arch_hweight.h
archrandom.h	x86, random: Verify RDRAND functionality and allow it to be disabled	2011-07-31 14:02:19 -07:00
asm-offsets.h
asm.h	x86: Fix write lock scalability 64-bit issue	2011-07-21 09:03:36 +02:00
atomic.h	x86: Use xadd helper more widely	2011-08-29 13:44:12 -07:00
atomic64_32.h	x86, atomic: atomic64_read() take a const pointer	2012-01-09 19:33:24 -08:00
atomic64_64.h	x86: Use xadd helper more widely	2011-08-29 13:44:12 -07:00
auxvec.h
bios_ebda.h
bitops.h	x86_64, asm: Optimise fls(), ffs() and fls64()	2011-12-15 15:16:49 -08:00
bitsperlong.h
boot.h
bootparam.h	x86: Add missing bzImage fields to struct setup_header	2011-12-09 17:35:33 -08:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h
calgary.h
calling.h
ce4100.h
checksum.h
checksum_32.h
checksum_64.h
clocksource.h	clocksource: Change __ARCH_HAS_CLOCKSOURCE_DATA to a CONFIG option	2011-07-21 13:34:05 -07:00
cmpxchg.h	x86: Properly parenthesize cmpxchg() macro arguments	2012-01-26 21:18:29 +01:00
cmpxchg_32.h	x86: Fix and improve cmpxchg_double{,_local}()	2012-01-04 15:01:54 +01:00
cmpxchg_64.h	x86: Fix and improve cmpxchg_double{,_local}()	2012-01-04 15:01:54 +01:00
compat.h	compat: sync compat_stats with statfs.	2011-10-28 14:58:53 +02:00
cpu.h
cpufeature.h	x86/amd: Add missing feature flag for fam15h models 10h-1fh processors	2012-01-26 12:06:38 +01:00
cpumask.h
cputime.h
current.h
debugreg.h	x86: Add counter when debug stack is used with interrupts enabled	2011-12-21 15:38:56 -05:00
delay.h	asm-generic: move archictures to common delay.h	2011-07-22 18:46:24 +02:00
desc.h	x86: Keep current stack in NMI breakpoints	2011-12-21 15:38:55 -05:00
desc_defs.h
device.h	iommu: Rename the DMAR and INTR_REMAP config options	2011-09-21 10:22:03 +02:00
div64.h	x86/div64: Add a micro-optimization shortcut if base is power of two	2011-12-05 18:16:11 +01:00
dma-mapping.h	doc: fix broken references	2011-09-27 18:08:04 +02:00
dma.h
dmi.h
dwarf2.h	x86-64: Fix CFI data for interrupt frames	2011-09-28 19:04:52 +02:00
e820.h	Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid"	2011-12-12 18:25:56 +01:00
edac.h
efi.h	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-01-11 19:12:33 -08:00
elf.h	x86, amd: Avoid cache aliasing penalties on AMD family 15h	2011-08-05 12:26:44 -07:00
emergency-restart.h
entry_arch.h
errno.h
fb.h
fcntl.h
fixmap.h	x86/intel config: Revamp configuration to allow for Moorestown and Medfield	2011-12-18 09:17:02 +01:00
floppy.h
frame.h	x86: Unify rwlock assembly implementation	2011-07-21 09:03:31 +02:00
ftrace.h
futex.h
gart.h
genapic.h
geode.h
gpio.h
hardirq.h	x86: Convert per-cpu counter icr_read_retry_count into a member of irq_stat	2011-12-18 10:46:48 +01:00
highmem.h
hpet.h
hugetlb.h
hw_breakpoint.h
hw_irq.h	iommu: Rename the DMAR and INTR_REMAP config options	2011-09-21 10:22:03 +02:00
hypertransport.h
hyperv.h	Staging: hv: vmbus: Retry vmbus_post_msg() before giving up	2011-08-25 15:23:19 -07:00
hypervisor.h
i387.h	i387: support lazy restore of FPU state	2012-02-20 10:58:54 -08:00
i8259.h
ia32.h
ia32_unistd.h	x86: Generate system call tables and unistd_*.h from tables	2011-11-17 13:35:37 -08:00
idle.h
inat.h
inat_types.h
init.h	x86, mm: Unify zone_sizes_init()	2011-11-11 10:22:55 +01:00
insn.h	x86, perf: Add a build-time sanity test to the x86 decoder	2011-11-10 12:38:51 +01:00
inst.h
intel_scu_ipc.h	x86,mrst: Power control commands update	2011-12-05 12:42:11 +01:00
io.h	x86: don't include xen/xen.h in <asm/io.h> unless XEN is enabled	2011-08-03 22:00:38 -10:00
io_apic.h
ioctl.h
ioctls.h
iomap.h
iommu.h	iommu: Add option to group multi-function devices	2011-11-15 12:22:31 +01:00
iommu_table.h
ipcbuf.h
ipi.h
irq.h
irq_controller.h
irq_regs.h
irq_remapping.h	iommu: Rename the DMAR and INTR_REMAP config options	2011-09-21 10:22:03 +02:00
irq_vectors.h	x86/irq: Standardize on CONFIG_SPARSE_IRQ=y	2011-10-13 12:12:12 +02:00
irqflags.h
ist.h
jump_label.h
Kbuild	x86: Generate system call tables and unistd_*.h from tables	2011-11-17 13:35:37 -08:00
kdebug.h	ptrace: unify show_regs() prototype	2011-07-26 16:49:43 -07:00
kexec.h
kgdb.h
kmap_types.h
kmemcheck.h
kprobes.h
kvm.h	KVM: provide synchronous registers in kvm_run	2012-03-05 14:52:22 +02:00
kvm_emulate.h	KVM: x86: fix missing checks in syscall emulation	2012-02-01 11:43:40 +02:00
kvm_host.h	KVM: Infrastructure for software and hardware based TSC rate scaling	2012-03-08 14:09:35 +02:00
kvm_para.h	KVM guest: KVM Steal time registration	2011-07-24 11:49:36 +03:00
ldt.h
lguest.h
lguest_hcall.h	lguest: update comments	2011-07-22 14:39:50 +09:30
linkage.h
local.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
local64.h
mach_timer.h	time: x86: Remove CLOCK_TICK_RATE from mach_timer.h	2011-11-21 19:00:57 -08:00
mach_traps.h	x86/mrst: Avoid reporting wrong nmi status	2011-11-10 16:21:01 +01:00
math_emu.h
mc146818rtc.h	x86: Use "do { } while(0)" for empty lock_cmos()/unlock_cmos() macros	2011-12-18 09:14:31 +01:00
mca.h
mca_dma.h
mce.h	mce: fix warning messages about static struct mce_device	2012-01-16 17:08:42 -08:00
microcode.h	x86, microcode, AMD: Add a vendor-specific exit function	2011-12-14 12:46:47 +01:00
mman.h
mmconfig.h
mmu.h
mmu_context.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
mmx.h
mmzone.h
mmzone_32.h
mmzone_64.h
module.h
mpspec.h
mpspec_def.h
mrst-vrtc.h
mrst.h	Merge branch 'tty-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty	2012-01-09 12:09:24 -08:00
msgbuf.h
mshyperv.h
msidef.h
msr-index.h	x86: TSC deadline definitions	2011-09-25 19:53:00 +03:00
msr.h	x86: Document rdmsr_safe restrictions	2011-12-05 14:28:37 +01:00
mtrr.h
mutex.h
mutex_32.h
mutex_64.h
mwait.h
nmi.h	x86, nmi: Add in logic to handle multiple events and unknown NMIs	2011-10-10 06:57:01 +02:00
nops.h
numa.h
numa_32.h
numa_64.h
numaq.h
olpc.h
olpc_ofw.h
page.h
page_32.h
page_32_types.h
page_64.h
page_64_types.h
page_types.h
param.h
paravirt.h	KVM guest: Add a pv_ops stub for steal time	2011-07-14 12:59:44 +03:00
paravirt_types.h	Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-tip	2011-08-12 20:46:24 -07:00
parport.h
pat.h
pci-direct.h
pci-functions.h
pci.h	x86/PCI: Expand the x86_msi_ops to have a restore MSIs.	2012-01-06 14:02:26 -08:00
pci_64.h
pci_x86.h	PCI: Pull PCI 'latency timer' setup up into the core	2012-01-06 12:10:42 -08:00
percpu.h	Merge branch 'for-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2012-01-09 13:08:28 -08:00
perf_event.h	perf events: Enable raw event support for Intel unhalted_reference_cycles event	2011-12-21 10:26:32 +01:00
perf_event_p4.h	x86, perf: P4 PMU - Fix typos in comments and style cleanup	2011-07-21 20:41:54 +02:00
pgalloc.h
pgtable-2level.h
pgtable-2level_types.h
pgtable-3level.h
pgtable-3level_types.h
pgtable.h	x86: Use "do { } while(0)" for empty flush_tlb_fix_spurious_fault() macro	2011-12-18 09:14:18 +01:00
pgtable_32.h
pgtable_32_types.h
pgtable_64.h
pgtable_64_types.h
pgtable_types.h
poll.h
posix_types.h
posix_types_32.h
posix_types_64.h
prctl.h
probe_roms.h
processor-cyrix.h
processor-flags.h	x86: Fix rflags in FAKE_STACK_FRAME	2011-12-06 10:02:38 +01:00
processor.h	i387: support lazy restore of FPU state	2012-02-20 10:58:54 -08:00
prom.h	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
proto.h
ptrace-abi.h
ptrace.h	x86-64: Add user_64bit_mode paravirt op	2011-08-04 16:13:49 -07:00
pvclock-abi.h
pvclock.h	KVM: Fix instruction size issue in pvclock scaling	2011-08-30 14:42:30 +03:00
reboot.h	x86, nmi: Wire up NMI handlers to new routines	2011-10-10 06:56:57 +02:00
reboot_fixups.h
required-features.h
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h	x86: Fix write lock scalability 64-bit issue	2011-07-21 09:03:36 +02:00
rwsem.h	x86: Use xadd helper more widely	2011-08-29 13:44:12 -07:00
scatterlist.h
seccomp.h
seccomp_32.h
seccomp_64.h
sections.h
segment.h
sembuf.h
serial.h
serpent.h	crypto: serpent - add 4-way parallel i586/SSE2 assembler implementation	2011-11-21 16:13:23 +08:00
setup.h	x86/intel config: Revamp configuration to allow for Moorestown and Medfield	2011-12-18 09:17:02 +01:00
setup_arch.h
shmbuf.h
shmparam.h
sigcontext.h
sigcontext32.h
sigframe.h
siginfo.h
signal.h
smp.h	x86, NMI: Add NMI IPI selftest	2011-12-05 12:00:16 +01:00
smpboot_hooks.h	x86: Serialize SMP bootup CMOS accesses on rtc_lock	2011-07-21 09:20:59 +02:00
socket.h
sockios.h
sparsemem.h
spinlock.h	x86/cmpxchg: add a locked add() helper	2011-11-25 10:42:59 -08:00
spinlock_types.h	x86, ticketlock: Make __ticket_spin_trylock common	2011-08-29 13:46:34 -07:00
stackprotector.h
stacktrace.h
stat.h
statfs.h
string.h
string_32.h
string_64.h
suspend.h
suspend_32.h
suspend_64.h
svm.h
swab.h
swiotlb.h
sync_bitops.h
sys_ia32.h
syscall.h	x86: Move <asm/asm-offsets.h> from trace_syscalls.c to asm/syscall.h	2012-01-07 14:10:18 -08:00
syscalls.h
system.h	xen/pm_idle: Make pm_idle be default_idle under Xen.	2011-12-03 10:49:58 -08:00
tce.h
termbits.h
termios.h
thread_info.h	i387: move TS_USEDFPU flag from thread_info to task_struct	2012-02-18 10:19:41 -08:00
time.h
timer.h	sched, x86: Avoid unnecessary overflow in sched_clock	2011-11-16 19:51:25 +01:00
timex.h
tlb.h
tlbflush.h
topology.h	Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci	2012-01-11 18:50:26 -08:00
trampoline.h
traps.h	x86-64: Rework vsyscall emulation and add vsyscall= parameter	2011-08-10 19:26:46 -05:00
tsc.h	x86, tsc: Skip TSC synchronization checks for tsc=reliable	2011-12-05 18:00:31 +01:00
types.h
uaccess.h	x86-64: Set siginfo and context on vsyscall emulation faults	2011-12-05 12:17:27 +01:00
uaccess_32.h
uaccess_64.h
ucontext.h
unaligned.h
unistd.h	x86, syscall: Need __ARCH_WANT_SYS_IPC for 32 bits	2012-01-19 12:57:09 -08:00
user.h
user32.h
user_32.h
user_64.h
vdso.h
vga.h
vgtod.h	x86-64: Move vread_tsc and vread_hpet into the vDSO	2011-07-14 17:57:05 -07:00
virtext.h
vm86.h
vmx.h	KVM: APIC: avoid instruction emulation for EOI writes	2011-09-25 19:52:17 +03:00
vsyscall.h	x86-64: Rework vsyscall emulation and add vsyscall= parameter	2011-08-10 19:26:46 -05:00
vvar.h
x2apic.h
x86_init.h	x86: Introduce x86_cpuinit.early_percpu_clock_init hook	2012-03-05 14:57:32 +02:00
xcr.h
xor.h
xor_32.h
xor_64.h
xsave.h