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Alexander Graf 455df3f323 PPC: Make BookE FIT/WDT timers more lazy 
Today we fire FIT and WDT timer events every time the respective bit
position in TB flips from 0 -> 1.

However, there is no need to do this if the end result would be that
we're changing a TSR bit that is set to 1 to 1 again. No guest visible
change would have occured.

So whenever we see that the TSR bit to our timer is already set, don't
even bother to update the timer that would potentially fire it off.

However, we do need to make sure that we update our timer that notifies
us of the TB flip when the respective TSR bit gets unset. In that case
we do care about the flip and need to notify the guest again. So add
a callback into our timer handlers when TSR bits get unset.

This improves performance for me when the guest is busy processing things.

Signed-off-by: Alexander Graf <agraf@suse.de>
Message-id: 1385416015-22775-2-git-send-email-agraf@suse.de
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
 		2013-11-25 20:35:11 -08:00
..
9pfs hw/9pfs: Fix errno value for xattr functions 2013-10-05 13:05:28 +04:00
acpi bswap.h: Remove le16_to_cpupu() 2013-11-05 19:57:46 -08:00
alpha hw/alpha: Fix compiler warning (integer constant is too large) 2013-10-02 22:55:28 +04:00
arm armv7m: Don't enforce use of kernel for qtest 2013-11-05 17:47:29 +01:00
audio pci, pc, acpi fixes, enhancements 2013-10-31 16:58:32 +01:00
block bswap.h: Remove cpu_to_be32wu() 2013-11-05 19:57:47 -08:00
bt Preparation for usb-bt-dongle conditional build 2013-09-10 11:14:41 +02:00
char spapr: add vio-bus devices to categories 2013-11-08 04:33:18 +01:00
core qdev-properties-system.c: Allow vlan or netdev for -device, not both 2013-11-22 09:47:00 +01:00
cpu arm11mpcore: Split off RealView MPCore 2013-11-05 17:47:30 +01:00
cris axis_dev88: Don't enforce use of kernel for qtest 2013-11-05 17:47:29 +01:00
display sun4m: Add FCode ROM for TCX framebuffer 2013-11-21 17:38:52 +01:00
dma qom: Pass available size to object_initialize() 2013-08-30 21:15:44 +02:00
gpio gpio/zaurus: QOM cast cleanup 2013-07-29 21:06:57 +02:00
i2c exynos4210_i2c: QOM cast cleanup 2013-07-29 21:07:02 +02:00
i386 acpi-build: fix support for glib < 2.22 2013-11-25 20:35:08 -08:00
ide bswap.h: Remove cpu_to_be16wu() 2013-11-05 19:57:47 -08:00
input aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
intc realview_gic: Prepare for QOM embedding 2013-11-05 17:47:30 +01:00
isa ich9: APIs for pc guest info 2013-10-14 17:48:52 +03:00
lm32 milkymist: Suppress -kernel/-bios/-drive error for qtest 2013-11-05 17:47:29 +01:00
m68k an5206: Don't enforce use of kernel for qtest 2013-11-05 17:47:29 +01:00
microblaze hw/microblaze: Add support for loading initrd images 2013-10-24 22:56:48 +02:00
mips mips jazz: do not raise data bus exception when accessing invalid addresses 2013-11-21 17:39:22 +01:00
misc vfio-pci: Fix multifunction=on 2013-11-21 17:39:04 +01:00
moxie memory: add owner argument to initialization functions 2013-07-04 17:42:44 +02:00
net Revert "e1000/rtl8139: update HMP NIC when every bit is written" 2013-11-21 16:28:27 +02:00
nvram spapr: add vio-bus devices to categories 2013-11-08 04:33:18 +01:00
openrisc openrisc-timer: Reduce overhead, Separate clock update functions 2013-11-20 21:46:45 +08:00
pci pci: unregister vmstate_pcibus on unplug 2013-11-21 16:25:08 +02:00
pci-bridge hw/pci-bridge: set PCI_INTERRUPT_PIN register before shpc init 2013-10-14 17:11:45 +03:00
pci-host Fix pc migration from qemu <= 1.5 2013-11-10 12:08:37 +02:00
pcmcia pcmcia/pxa2xx: QOM'ify PXA2xxPCMCIAState 2013-11-05 18:06:52 +01:00
ppc PPC: Make BookE FIT/WDT timers more lazy 2013-11-25 20:35:11 -08:00
s390x s390x: fix flat file load on 32 bit systems 2013-11-21 07:55:10 -08:00
scsi spapr: add vio-bus devices to categories 2013-11-08 04:33:18 +01:00
sd sd: Avoid access to NULL BlockDriverState 2013-10-17 10:15:18 +02:00
sh4 shix: Don't require firmware presence for qtest 2013-11-05 17:47:29 +01:00
sparc sun4m: Add FCode ROM for TCX framebuffer 2013-11-21 17:38:52 +01:00
sparc64 pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
ssi xilinx_spi: QOM cast cleanup 2013-07-29 21:07:01 +02:00
timer rtc: remove dead SQW IRQ code 2013-11-05 20:04:03 -08:00
tpm aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
unicore32 puv3: Turn puv3_load_kernel() into a no-op for qtest without -kernel 2013-11-05 17:47:28 +01:00
usb usb: drop unused USBNetState.inpkt field 2013-11-13 15:48:38 +04:00
virtio virtio-rng: add check of period 2013-11-21 07:55:26 -08:00
watchdog aio / timers: Switch entire codebase to the new timer API 2013-08-22 19:14:24 +02:00
xen qdev: Drop misleading qdev_free() function 2013-11-05 18:06:38 +01:00
xtensa pc,pci,virtio fixes and cleanups 2013-09-03 12:31:07 -05:00
Makefile.objs pcmcia: QOM'ify PCMCIACardState and MicroDriveState 2013-11-05 18:06:52 +01:00