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David Gibson 651615d92d s390: Recognize confidential-guest-support option 
At least some s390 cpu models support "Protected Virtualization" (PV),
a mechanism to protect guests from eavesdropping by a compromised
hypervisor.

This is similar in function to other mechanisms like AMD's SEV and
POWER's PEF, which are controlled by the "confidential-guest-support"
machine option.  s390 is a slightly special case, because we already
supported PV, simply by using a CPU model with the required feature
(S390_FEAT_UNPACK).

To integrate this with the option used by other platforms, we
implement the following compromise:

 - When the confidential-guest-support option is set, s390 will
   recognize it, verify that the CPU can support PV (failing if not)
   and set virtio default options necessary for encrypted or protected
   guests, as on other platforms.  i.e. if confidential-guest-support
   is set, we will either create a guest capable of entering PV mode,
   or fail outright.

 - If confidential-guest-support is not set, guests might still be
   able to enter PV mode, if the CPU has the right model.  This may be
   a little surprising, but shouldn't actually be harmful.

To start a guest supporting Protected Virtualization using the new
option use the command line arguments:
    -object s390-pv-guest,id=pv0 -machine confidential-guest-support=pv0

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
2021-02-08 16:57:38 +11:00
..
acpi acpi: Permit OEM ID and OEM table ID fields to be changed 2021-02-05 08:52:59 -05:00
adc hw/adc: Add an ADC module for NPCM7XX 2021-01-12 21:19:02 +00:00
arm acpi: Permit OEM ID and OEM table ID fields to be changed 2021-02-05 08:52:59 -05:00
audio qom: Put name parameter before value / visitor parameter 2020-07-10 15:18:08 +02:00
block qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
char hw/char/pl011: add a clock input 2020-10-27 11:10:44 +00:00
core accel: introduce AccelCPUClass extending CPUClass 2021-02-05 10:24:15 -10:00
cpu Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
cris sysbus: Convert to sysbus_realize() etc. with Coccinelle 2020-06-15 22:05:28 +02:00
display Clean up includes 2020-12-10 17:16:44 +01:00
dma Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
firmware machine: Refactor smp-related call chains to pass MachineState 2019-07-05 17:07:36 -03:00
gpio hw/gpio: Add GPIO model for Nuvoton NPCM7xx 2020-10-27 11:10:32 +00:00
hyperv Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
i2c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
i386 acpi: Permit OEM ID and OEM table ID fields to be changed 2021-02-05 08:52:59 -05:00
ide nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
input input: tsc2xxx fix. 2020-09-22 21:11:10 +01:00
intc hw/ppc: Remove unused ppcuic_init() 2021-01-19 10:20:29 +11:00
ipack Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ipmi Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
isa vt82c686: Remove legacy vt82c686b_pm_init() function 2021-01-04 23:24:44 +01:00
kvm target/i386: always create kvmclock device 2020-09-30 19:11:36 +02:00
lm32 Include qemu-common.h exactly where needed 2019-06-12 13:20:20 +02:00
m68k hw/m68k/next-cube: Add missing header comment to next-cube.h 2021-01-19 09:11:52 +01:00
mem acpi: Permit OEM ID and OEM table ID fields to be changed 2021-02-05 08:52:59 -05:00
mips hw/mips: Move address translation helpers to target/mips/ 2020-12-13 19:58:54 +01:00
misc hw/misc/pvpanic: add PCI interface support 2021-01-29 10:47:28 +00:00
net hw/net/can: Introduce Xilinx ZynqMP CAN controller 2020-12-10 11:30:44 +00:00
nubus Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
nvram fw_cfg: Refactor extra pci roots addition 2020-12-08 13:48:57 -05:00
pci pci: add romsize property 2021-02-05 08:52:58 -05:00
pci-bridge Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
pci-host spapr: Fix buffer overflow in spapr_numa_associativity_init() 2021-01-06 11:09:59 +11:00
ppc spapr: Add PEF based confidential guest support 2021-02-08 16:57:38 +11:00
rdma Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
riscv riscv: Pass RISCVHartArrayState by pointer 2021-01-16 14:34:46 -08:00
rtc m48t59: remove legacy m48t59_init() function 2020-10-18 16:21:42 +01:00
rx Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
s390x s390: Recognize confidential-guest-support option 2021-02-08 16:57:38 +11:00
scsi scsi/scsi_bus: Add scsi_device_get 2020-10-12 11:50:51 -04:00
sd hw/sd: sd.h: Cosmetic change of using spaces 2021-01-24 20:11:05 +01:00
semihosting semihosting: Fix Lesser GPL version number 2020-11-15 16:38:03 +01:00
sh4 hw/sh4: Extract timer definitions to 'hw/timer/tmu012.h' 2020-06-22 18:37:12 +02:00
southbridge Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
sparc include/hw/sparc/grlib.h: Remove unused set_pil_in_fn typedef 2021-01-06 11:41:37 +00:00
ssi hw/ssi: imx_spi: Use a macro for number of chip selects supported 2021-02-02 17:00:54 +00:00
timer arm: Remove frq properties on CMSDK timer, dualtimer, watchdog, ARMSSE 2021-01-29 15:54:44 +00:00
tricore Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
unicore32 hw/unicore32: restrict hw addr defines to source file 2017-12-18 17:07:02 +03:00
usb usb: xlnx-usb-subsystem: Add xilinx usb subsystem 2020-12-15 12:04:30 +00:00
vfio vfio: Change default dirty pages tracking behavior during migration 2020-11-23 10:05:58 -07:00
virtio display/ui: add a callback to indicate GL state is flushed 2021-02-04 15:58:54 +01:00
watchdog arm: Remove frq properties on CMSDK timer, dualtimer, watchdog, ARMSSE 2021-01-29 15:54:44 +00:00
xen xen: remove GNUC check 2020-12-15 12:53:13 -05:00
xtensa Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
boards.h confidential guest support: Rework the "memory-encryption" property 2021-02-08 16:57:38 +11:00
clock.h clock: Add new clock_has_source() function 2021-01-29 15:54:42 +00:00
elf_ops.h elf_ops.h: Be more verbose with ROM blob names 2020-12-15 12:04:30 +00:00
fw-path-provider.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
hotplug.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
hw.h Include hw/hw.h exactly where needed 2019-08-16 13:31:52 +02:00
ide.h hw/ide: Move MAX_IDE_DEVS define to hw/ide/internal.h 2020-03-17 12:22:36 -04:00
irq.h include/hw/irq.h: New function qemu_irq_is_connected() 2020-08-03 17:55:03 +01:00
loader-fit.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
loader.h hw/core/loader: Let load_elf() populate a field with CPU-specific flags 2020-01-29 19:28:52 +01:00
nmi.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
or-irq.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
pcmcia.h Use OBJECT_DECLARE_TYPE when possible 2020-09-18 14:12:32 -04:00
platform-bus.h nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
ptimer.h ptimer: Add new ptimer_set_period_from_clock() function 2021-01-29 15:54:42 +00:00
qdev-clock.h hw/qdev-clock: Avoid calling qdev_connect_clock_in after DeviceRealize 2020-08-28 10:02:46 +01:00
qdev-core.h machine: introduce MachineInitPhase 2020-12-15 12:51:52 -05:00
qdev-dma.h Supply missing header guards 2019-06-12 13:20:21 +02:00
qdev-properties-system.h qdev: Reuse DEFINE_PROP in all DEFINE_PROP_* macros 2020-12-18 15:20:17 -05:00
qdev-properties.h qdev: Rename qdev_get_prop_ptr() to object_field_prop_ptr() 2020-12-18 15:20:18 -05:00
register.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
registerfields.h hw/registerfields: Prefix local variables with underscore in macros 2020-05-27 11:23:07 -07:00
resettable.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
stream.h hw/core/stream: Rename StreamSlave as StreamSink 2020-12-10 12:15:04 -05:00
sysbus.h qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros 2020-09-18 14:12:32 -04:00
usb.h usb: add pcap support. 2021-01-22 14:51:35 +01:00
vmstate-if.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00