Hollis Blanchard 73e75b416f KVM: ppc: Implement in-kernel exit timing statistics ...

Existing KVM statistics are either just counters (kvm_stat) reported for
KVM generally or trace based aproaches like kvm_trace.
For KVM on powerpc we had the need to track the timings of the different exit
types. While this could be achieved parsing data created with a kvm_trace
extension this adds too much overhead (at least on embedded PowerPC) slowing
down the workloads we wanted to measure.

Therefore this patch adds a in-kernel exit timing statistic to the powerpc kvm
code. These statistic is available per vm&vcpu under the kvm debugfs directory.
As this statistic is low, but still some overhead it can be enabled via a
.config entry and should be off by default.

Since this patch touched all powerpc kvm_stat code anyway this code is now
merged and simplified together with the exit timing statistic code (still
working with exit timing disabled in .config).

Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

2008-12-31 16:55:41 +02:00

..

vdso32

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

vdso64

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

.gitignore

powerpc: Ignore generated vmlinux.lds in git

2008-10-07 14:26:18 +11:00

align.c

powerpc: Fix uninitialised variable in VSX alignment code

2008-09-03 20:53:14 +10:00

asm-offsets.c

KVM: ppc: Implement in-kernel exit timing statistics

2008-12-31 16:55:41 +02:00

audit.c

[PATCH] audit signal recipients

2007-05-11 05:38:25 -04:00

btext.c

powerpc: Use the common ascii hex helpers

2008-08-20 16:34:57 +10:00

clock.c

[POWERPC] clk.h interface for platforms

2007-10-03 09:11:56 +10:00

compat_audit.c

[PATCH] add SIGNAL syscall class (v3)

2007-05-11 05:38:25 -04:00

cpu_setup_6xx.S

[POWERPC] ppc32: Fix errata for 603 CPUs

2008-04-21 15:00:32 -05:00

cpu_setup_44x.S

powerpc/virtex5: Fix Virtex5 machine check handling

2008-12-05 14:34:26 -05:00

cpu_setup_pa6t.S

[POWERPC] pasemi: Enable one more hid bit

2007-04-24 21:31:49 +10:00

cpu_setup_ppc970.S

powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit

2008-09-15 11:08:35 -07:00

cputable.c

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

crash_dump.c

powerpc: Support for relocatable kdump kernel

2008-10-22 15:01:22 +11:00

crash.c

powerpc: Increase CRASH_HANDLER_MAX

2008-06-30 22:31:00 +10:00

dma-iommu.c

powerpc: Update remaining dma_mapping_ops to use map/unmap_page

2008-10-31 16:13:48 +11:00

dma.c

powerpc: Add sync_*_for_* to dma_ops

2008-12-03 20:46:36 +11:00

entry_32.S

powerpc: ftrace, do nothing in mcount call for dyn ftrace

2008-11-28 14:07:45 +01:00

entry_64.S

Merge commit 'v2.6.28-rc7' into tracing/core

2008-12-04 09:07:19 +01:00

firmware.c

…

fpu.S

powerpc: Add VSX context save/restore, ptrace and signal support

2008-07-01 11:28:50 +10:00

ftrace.c

powerpc: ftrace, use create_branch

2008-11-28 14:08:01 +01:00

head_8xx.S

[POWERPC] 8xx: fix swap

2008-03-07 08:42:28 -06:00

head_32.S

powerpc/32: Add the ability for a classic ppc kernel to be loaded at 32M

2008-12-23 15:13:29 +11:00

head_40x.S

[POWERPC] 40x/Book-E: Save/restore volatile exception registers

2008-06-02 14:56:35 -05:00

head_44x.S

powerpc/44x: Support 16K/64K base page sizes on 44x

2008-12-29 09:53:25 +11:00

head_64.S

powerpc/ppc64/kdump: Better flag for running relocatable

2008-10-31 16:11:49 +11:00

head_booke.h

powerpc: rework 4xx PTE access and TLB miss

2008-07-09 13:36:17 -04:00

head_fsl_booke.S

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

ibmebus.c

powerpc: struct device - replace bus_id with dev_name(), dev_set_name()

2008-12-16 15:53:38 +11:00

idle_6xx.S

powerpc: Fix for getting CPU number in power_save_ppc32_restore()

2008-09-03 20:53:47 +10:00

idle_e500.S

powerpc: Fix for getting CPU number in power_save_ppc32_restore()

2008-09-03 20:53:47 +10:00

idle_power4.S

[POWERPC] powermac: Support G5 CPU hotplug

2007-05-07 20:31:13 +10:00

idle.c

powerpc: ftrace, do not latency trace idle

2008-11-20 10:51:15 -08:00

init_task.c

[PATCH] take init_files to fs/file.c

2008-05-16 17:22:20 -04:00

io.c

ftrace: support for PowerPC

2008-05-23 22:43:11 +02:00

iomap.c

[POWERPC] Add 64-bit resources support to pci_iomap

2007-09-20 07:36:52 -05:00

iommu.c

powerpc: Update remaining dma_mapping_ops to use map/unmap_page

2008-10-31 16:13:48 +11:00

irq.c

powerpc: Make the irq reverse mapping radix tree lockless

2008-09-15 11:08:45 -07:00

isa-bridge.c

[POWERPC] Remove leftover printk in isa-bridge.c

2008-05-09 20:22:59 +10:00

kgdb.c

kgdb, x86, arm, mips, powerpc: ignore user space single stepping

2008-09-26 10:36:41 -05:00

kprobes.c

kprobes: improve kretprobe scalability with hashed locking

2008-07-25 10:53:30 -07:00

l2cr_6xx.S

Convert files to UTF-8 and some cleanups

2007-10-19 23:21:04 +02:00

legacy_serial.c

powerpc/powermac: Fixup default serial port device for pmac_zilog

2008-07-28 16:30:53 +10:00

lparcfg.c

powerpc: Replace __FUNCTION__ with __func__

2008-08-20 16:34:57 +10:00

machine_kexec_32.c

kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE

2008-08-15 08:35:42 -07:00

machine_kexec_64.c

powerpc/32: Setup OF properties for kdump

2008-12-23 15:13:29 +11:00

machine_kexec.c

powerpc/32: Setup OF properties for kdump

2008-12-23 15:13:29 +11:00

Makefile

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

2008-12-28 16:54:33 -08:00

misc_32.S

powerpc/44x: Support 16K/64K base page sizes on 44x

2008-12-29 09:53:25 +11:00

misc_64.S

powerpc: Kexec exit should not use magic numbers

2008-10-31 16:11:44 +11:00

misc.S

powerpc: Use LOAD_REG_IMMEDIATE only for constants on 64-bit

2008-09-15 11:08:35 -07:00

module_32.c

powerpc/ppc32: ftrace, dynamic ftrace to handle modules

2008-11-20 10:52:53 -08:00

module_64.c

powerpc/ppc64: ftrace, handle module trampolines for dyn ftrace

2008-11-20 10:52:28 -08:00

module.c

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

msi.c

[POWERPC] Fix sparse warnings in arch/powerpc/kernel

2008-05-14 22:31:59 +10:00

nvram_64.c

[POWERPC] pseries: Eliminate global error_log_cnt variable

2007-08-17 11:01:52 +10:00

of_device.c

powerpc: struct device - replace bus_id with dev_name(), dev_set_name()

2008-12-16 15:53:38 +11:00

of_platform.c

powerpc: Add missing reference to coherent_dma_mask

2008-07-08 21:06:35 -07:00

paca.c

powerpc: Update page-in counter for CMM

2008-11-05 22:08:28 +11:00

pci_32.c

powerpc: Remove `have_of' global variable

2008-12-16 15:52:57 +11:00

pci_64.c

powerpc/pci: Split pcibios_fixup_bus() into bus setup and device setup

2008-11-06 09:22:37 +11:00

pci_dn.c

[POWERPC] iSeries: eliminate pci_dn bussubno

2008-01-17 14:57:05 +11:00

pci-common.c

powerpc/mm: Rework usage of _PAGE_COHERENT/NO_CACHE/GUARDED

2008-12-21 14:21:16 +11:00

pmc.c

[POWERPC] Made FSL Book-E PMC support more generic

2008-02-05 23:34:14 -06:00

ppc32.h

powerpc: Add VSX context save/restore, ptrace and signal support

2008-07-01 11:28:50 +10:00

ppc_ksyms.c

powerpc/mm: Add SMP support to no-hash TLB handling

2008-12-21 14:21:16 +11:00

ppc_save_regs.S

powerpc: Prepare xmon_save_regs for use with kdump

2008-12-23 15:13:28 +11:00

proc_ppc64.c

powerpc: use non-racy method for proc entries creation

2008-04-29 08:06:22 -07:00

process.c

powerpc: Allow the max stack trace depth to be configured

2008-12-03 20:46:35 +11:00

prom_init_check.sh

powerpc: Fix build issue with CONFIG_RELOCATABLE=y

2008-10-21 15:17:49 +11:00

prom_init.c

Revert "powerpc: Sync RPA note in zImage with kernel's RPA note"

2008-10-31 22:36:21 +11:00

prom_parse.c

Merge branch 'merge'

2008-12-03 20:11:06 +11:00

prom.c

powerpc: Force memory size to be a multiple of PAGE_SIZE

2008-12-29 09:53:14 +11:00

ptrace32.c

powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes

2008-07-30 15:26:54 +10:00

ptrace.c

powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs

2008-07-30 15:26:54 +10:00

reloc_64.S

powerpc: Make the 64-bit kernel as a position-independent executable

2008-09-15 11:08:38 -07:00

rtas_flash.c

SL*B: drop kmem cache argument from constructor

2008-07-26 12:00:07 -07:00

rtas_pci.c

powerpc/pci: Fix various pseries PCI hotplug issues

2008-11-06 09:31:52 +11:00

rtas-proc.c

[POWERPC] Fix sparse warnings in arch/powerpc/kernel

2008-05-14 22:31:59 +10:00

rtas-rtc.c

…

rtas.c

powerpc/pseries: Check for GIQ indicator before calling set-indicator

2008-12-16 15:53:13 +11:00

setup_32.c

powerpc/32: Wire up the trampoline code for kdump

2008-12-23 15:13:29 +11:00

setup_64.c

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

setup-common.c

powerpc: Move memory size print into common show_cpuinfo for 32-bit

2008-10-22 11:00:25 +11:00

setup.h

…

signal_32.c

powerpc: Fix msr check in compat_sys_swapcontext

2008-11-11 19:42:22 +11:00

signal_64.c

powerpc: Fix swapcontext system for VSX + old ucontext size

2008-10-31 16:12:00 +11:00

signal.c

powerpc: Add TIF_NOTIFY_RESUME support for tracehook

2008-07-28 16:30:50 +10:00

signal.h

x86, um: get rid of uml signal.h

2008-10-22 22:55:20 -07:00

smp-tbsync.c

powerpc: Silence software timebase sync

2008-11-05 22:08:28 +11:00

smp.c

powerpc: Convert cpu_to_l2cache() to of_find_next_cache_node()

2008-12-21 14:21:14 +11:00

softemu8xx.c

Remove asm/a.out.h files for all architectures without a.out support.

2008-09-06 19:30:24 +01:00

stacktrace.c

powerpc: Removed duplicated include in stacktrace.c

2008-07-28 16:30:47 +10:00

suspend.c

PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures

2008-07-24 10:47:21 -07:00

swsusp_32.S

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00

swsusp_64.c

[POWERPC] powermac: Suspend to disk on G5

2007-05-07 20:31:14 +10:00

swsusp_asm64.S

powerpc: Fix 64-bit hibernation with 64k pages

2008-10-07 14:26:20 +11:00

swsusp.c

powerpc/mm: Split mmu_context handling

2008-12-21 14:21:15 +11:00

sys_ppc32.c

compat: generic compat get/settimeofday

2008-10-16 11:21:33 -07:00

syscalls.c

powerpc/mm: Add Strong Access Ordering support

2008-07-09 16:30:45 +10:00

sysfs.c

powerpc: Convert sysfs cache code to of_find_next_cache_node()

2008-12-21 14:21:14 +11:00

systbl_chk.c

[POWERPC] Fix a couple of copyright symbols

2008-01-25 22:52:50 +11:00

systbl_chk.sh

[POWERPC] Fix a couple of copyright symbols

2008-01-25 22:52:50 +11:00

systbl.S

[POWERPC] Align the sys_call_table

2007-10-11 14:36:47 +10:00

tau_6xx.c

on_each_cpu(): kill unused 'retry' parameter

2008-06-26 11:24:38 +02:00

time.c

powerpc: Eliminate unused do_gtod variable

2008-11-06 09:49:28 +11:00

traps.c

powerpc: Add SPE/EFP math emulation for E500v1/v2 processors.

2008-12-03 08:19:16 -06:00

udbg_16550.c

powerpc: Unsigned speed cannot be negative in udbg_16559.c

2008-10-21 15:17:47 +11:00

udbg.c

[POWERPC] Mark udbg console as CON_ANYTIME, ie. callable early in boot

2008-04-24 21:08:11 +10:00

vdso.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

2008-12-28 16:54:33 -08:00

vecemu.c

…

vector.S

…

vio.c

powerpc: struct device - replace bus_id with dev_name(), dev_set_name()

2008-12-16 15:53:38 +11:00

vmlinux.lds.S

powerpc/mm: Introduce MMU features

2008-12-21 14:21:16 +11:00