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qemu/hw
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Alexey Kardashevskiy 98a8b52442 spapr: Add support for time base offset migration 
This allows guests to have a different timebase origin from the host.

This is needed for migration, where a guest can migrate from one host
to another and the two hosts might have a different timebase origin.
However, the timebase seen by the guest must not go backwards, and
should go forwards only by a small amount corresponding to the time
taken for the migration.

This is only supported for recent POWER hardware which has the TBU40
(timebase upper 40 bits) register. That includes POWER6, 7, 8 but not
970.

This adds kvm_access_one_reg() to access a special register which is not
in env->spr. This requires kvm_set_one_reg/kvm_get_one_reg patch.

The feature must be present in the host kernel.

This bumps vmstate_spapr::version_id and enables new vmstate_ppc_timebase
only for it. Since the vmstate_spapr::minimum_version_id remains
unchanged, migration from older QEMU is supported but without
vmstate_ppc_timebase.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:35 +02:00
..
9pfs hw: use ld_p/st_p instead of ld_raw/st_raw 2014-06-05 16:04:17 +02:00
acpi savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
alpha machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
arm vexpress: Add support for the -bios flag to provide firmware 2014-06-09 15:43:22 +01:00
audio savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
block savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
bt Preparation for usb-bt-dongle conditional build 2013-09-10 11:14:41 +02:00
char savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
core pc,pci,virtio,qdev fixes, tests 2014-06-05 21:52:37 +01:00
cpu icc_bus: QOM'ify ICC 2013-12-24 18:02:18 +01:00
cris machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
display savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
dma savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
gpio savevm: Remove all the unneeded version_minimum_id_old (arm) 2014-05-13 16:09:35 +01:00
i2c savevm: Remove all the unneeded version_minimum_id_old (rest) 2014-05-14 15:24:51 +02:00
i386 savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
ide savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
input savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
intc savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
ipack savevm: Remove all the unneeded version_minimum_id_old (rest) 2014-05-14 15:24:51 +02:00
isa savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
lm32 machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
m68k machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
microblaze ssi: Name the CS GPIO 2014-05-28 17:36:21 +02:00
mips hw: use ld_p/st_p instead of ld_raw/st_raw 2014-06-05 16:04:17 +02:00
misc vfio: Add guest side IOMMU support 2014-05-30 13:10:07 -06:00
moxie machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
net Fix typo in eTSEC Ethernet controller 2014-06-16 13:24:26 +02:00
nvram spapr_nvram: Correct max nvram size 2014-06-16 13:24:26 +02:00
openrisc machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
pci savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
pci-bridge savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
pci-host PPC: e500: implement PCI INTx routing 2014-06-16 13:24:34 +02:00
pcmcia qom: Add check() argument to object_property_add_link() 2014-03-19 22:23:13 +01:00
ppc spapr: Add support for time base offset migration 2014-06-16 13:24:35 +02:00
s390x s390x: cleanup interrupt injection 2014-06-10 09:50:27 +02:00
scsi savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
sd hw/sd/sd.c: Drop unused sd_acmd_type[] array 2014-06-10 19:39:34 +04:00
sh4 machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
sparc tcx: move initialisation from realizefn to initfn 2014-06-05 20:51:57 +01:00
sparc64 machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
ssi ssi: Name the CS GPIO 2014-05-28 17:36:21 +02:00
timer savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
tpm aio / timers: Untangle include files 2013-08-22 19:10:27 +02:00
unicore32 machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
usb usb-host: add range checks for usb-host parameters 2014-06-13 12:34:57 +02:00
virtio vhost: replace ffsl with ctzl 2014-06-11 00:25:06 +01:00
watchdog savevm: Remove all the unneeded version_minimum_id_old (x86) 2014-06-16 04:55:26 +02:00
xen trivial patches for 2014-05-07 2014-05-07 18:38:39 +01:00
xenpv machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
xtensa machine: Conversion of QEMUMachineInitArgs to MachineState 2014-05-28 17:35:01 +02:00
Makefile.objs hw/9pfs: Include virtio-9p-device.o in build 2014-03-04 09:20:49 +05:30