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qemu/include/hw
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Christian Borntraeger 0280b3eb7c s390x/kvm: use cpu model for gscb on compat machines 
Starting a guest with
   <os>
    <type arch='s390x' machine='s390-ccw-virtio-2.9'>hvm</type>
  </os>
  <cpu mode='host-model'/>

on an IBM z14 results in

"qemu-system-s390x: Some features requested in the CPU model are not
available in the configuration: gs"

This is because guarded storage is fenced for compat machines that did
not have guarded storage support. While this prevents future migration
abort (by not starting the guest at all), not being able to start a
"host-model" guest is very much unexpected.  As it turns out, even if we
would modify libvirt to not expand the cpu model to contain "gs" for
compat machines, it cannot guarantee that a migration will succeed. For
example if the kernel changes its features (or the user has nested=1 on
one host but not on the other) the migration will fail nevertheless.  So
instead of fencing "gs" for machines <= 2.9 lets allow it for all
machine types that support the CPU model. This will make "host-model"
runnable all the time, while relying on the CPU model to reject invalid
migration attempts. We also need to change the migration for guarded
storage.
Additional discussions about host-model are still pending but are out
of scope of this patch.

Suggested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Cornelia Huck <Cornelia Huck <cohuck@redhat.com>
Acked-by: Halil Pasic <pasic@linux.vnet.ibm.com>
2017-10-30 09:03:45 +01:00
..
acpi vmgenid: replace x-write-pointer-available hack 2017-09-08 16:15:17 +03:00
adc STM32F2xx: Add the ADC device 2016-10-04 13:28:07 +01:00
arm arm: fix armv7m_init() declaration to match definition 2017-10-12 13:20:07 +01:00
audio audio: Rename hw/audio/audio.h to hw/audio/soundhw.h 2017-05-19 10:48:54 +02:00
block hw/block: Introduce share-rw qdev property 2017-02-28 20:40:36 +01:00
char hw/char/cmsdk-apb-uart.c: Implement CMSDK APB UART 2017-07-17 13:36:08 +01:00
core generic-loader: Add a generic loader 2016-10-04 13:28:09 +01:00
cpu qapi: keep names in 'CpuInstanceProperties' in sync with struct CPUCore 2016-06-27 13:15:06 +10:00
cris char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
display Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
dma include: Fix typos found by codespell 2017-01-24 23:26:52 +03:00
gpio bcm2835_gpio: add bcm2835 gpio controller 2017-02-28 17:10:00 +00:00
i2c ppc4xx_i2c: QOMify 2017-09-08 09:30:55 +10:00
i386 i386/cpu/hyperv: support over 64 vcpus for windows guests 2017-09-19 16:20:49 +02:00
ide ide: support reporting of rotation rate 2017-10-12 12:10:37 +02:00
input ps2: add and use PS2State typedef 2017-06-23 11:51:50 +02:00
intc nvic: Implement NVIC_ITNS<n> registers 2017-09-21 16:29:27 +01:00
ipack ipack: Update e-mail address 2016-05-18 15:04:27 +03:00
ipmi ipmi: introduce an ipmi_bmc_gen_event() API 2017-04-26 12:41:55 +10:00
isa isa: use get_uint() for "io-base" 2017-06-20 14:31:32 +02:00
kvm hw: move headers to include/ 2013-04-08 18:13:10 +02:00
lm32 intc: make HMP 'info irq' and 'info pic' commands use InterruptStatsProvider interface 2016-10-04 10:00:25 +02:00
m68k hw/char/mcf_uart: QOMify the ColdFire UART 2017-02-16 14:06:56 +01:00
mem qmp: introduce query-memory-size-summary command 2017-09-14 15:52:10 +01:00
mips mips: Add KVM T&E segment support for TCG 2017-08-02 22:18:06 +01:00
misc hw/misc: add vmcoreinfo device 2017-10-15 05:54:40 +03:00
net net: add Sun HME (Happy Meal Ethernet) on-board NIC 2017-09-21 08:38:42 +01:00
nvram fw_cfg: add write callback 2017-10-15 05:54:40 +03:00
pci pci: conventional-pci-device and pci-express-device interfaces 2017-10-15 05:54:42 +03:00
pci-host hw/pci-host/gpex: Set INTx index/gsi mapping 2017-09-14 18:43:18 +01:00
ppc ppc: pnv: drop PnvChipClass::cpu_model field 2017-10-17 10:34:01 +11:00
s390x s390x/kvm: use cpu model for gscb on compat machines 2017-10-30 09:03:45 +01:00
scsi scsi: move non-emulation specific code to scsi/ 2017-09-19 14:09:11 +02:00
sd hw/sd: add card-reparenting function 2017-02-28 17:10:00 +00:00
sh4 char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
smbios smbios: filter based on CONFIG_SMBIOS rather than TARGET 2017-01-16 17:52:34 +01:00
sparc char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
ssi msf2: Add Smartfusion2 SPI controller 2017-09-21 16:36:56 +01:00
timer msf2: Add Smartfusion2 System timer 2017-09-21 16:36:56 +01:00
tricore Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
unicore32 Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
usb Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vfio memory/iommu: QOM'fy IOMMU MemoryRegion 2017-07-14 12:04:41 +02:00
virtio virtio-input: send rel-wheel events for wheel buttons 2017-09-29 10:36:33 +02:00
watchdog watchdog: wdt_aspeed: Add support for the reset width register 2017-09-04 15:21:54 +01:00
xen xen: add a global indicator for grant copy being available 2017-10-26 14:23:06 -07:00
boards.h machine: Add a valid_cpu_types property 2017-10-09 23:21:52 -03:00
bt.h char: rename CharDriverState Chardev 2017-01-27 18:07:59 +01:00
compat.h virtio-input: send rel-wheel events for wheel buttons 2017-09-29 10:36:33 +02:00
devices.h sm501: QOMify 2017-04-24 12:32:12 +01:00
elf_ops.h loader: Ignore zero-sized ELF segments 2017-09-04 15:21:53 +01:00
empty_slot.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
fw-path-provider.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
hotplug.h qdev: hotplug: drop HotplugHandler.post_plug callback 2016-11-15 17:20:37 +02:00
hw.h migration: Split qemu-file.h 2017-06-01 18:49:22 +02:00
ide.h xen-platform: add missing disk unplug option 2017-01-27 15:23:29 -08:00
irq.h irq: Remove qemu_irq_intercept_out 2014-10-23 16:41:25 +02:00
loader-fit.h loader: Support Flattened Image Trees (FIT images) 2017-02-21 23:47:40 +00:00
loader.h fw_cfg: rename read callback 2017-09-08 16:15:17 +03:00
nmi.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
or-irq.h include/hw/or-irq.h: Drop unused in_irqs field 2017-10-16 21:09:15 +03:00
pcmcia.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
platform-bus.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
ptimer.h include/hw/ptimer.h: Add documentation comments 2017-07-11 17:44:27 +03:00
qdev-core.h qdev: store DeviceState's canonical path to use when unparenting 2017-10-18 10:34:17 +02:00
qdev-dma.h qdev: Remove hex8/32/64 property types 2014-02-14 21:12:04 +01:00
qdev-properties.h qdev: provide DEFINE_PROP_INT64() 2017-07-18 17:36:19 +02:00
qdev.h hw: move headers to include/ 2013-04-08 18:13:10 +02:00
register.h hw/registerfields.h: Pull FIELD etc macros out of hw/register.h 2017-01-27 15:20:21 +00:00
registerfields.h hw/registerfields.h: Pull FIELD etc macros out of hw/register.h 2017-01-27 15:20:21 +00:00
stream.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
sysbus.h sysbus: Remove ignored return value of FindSysbusDeviceFunc 2016-09-27 17:03:34 -03:00
usb.h usb: replace handle_destroy with unrealize 2017-02-23 15:40:19 +01:00